PEOPLES’REPUBLIC OF CHINA - World Bank
PEOPLES’REPUBLIC OF CHINA
BENGBU MUNICIPALITY
THE WORLD BANK
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|BENGBU INTEGRATED ENVIRONMENT IMPROVEMENT PROJECT |
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|R3 – Draft Consolidated Environmental Assessment Report |
|August 2007 |
French Grant, FASEP n°34
DGTPE, Ministère de l’Economie des Finances et de l’Industrie, Paris, France
PEOPLE’S REPUBLC OF CHINA
BENGBU MUNICIPALITY
Bengbu Integrated Environment Improvement Project
R3- Draft Consolidated Environmental Assessment Report
This report has been published in collaboration with SOGREAH CHINA
|Objet de l'indice |Date |Indice |Rédaction |Validation |
| | | |Nom |Signature |Nom |Signature |
|Consolidated Environmental Assessment |14 August 2007 | | | | | |
|Report (R3) | | | | | | |
| | |a | | | | |
| | |b | | | | |
| | |c | | | | |
| | |d | | | | |
|Numéro de rapport: |Rig00003 |
|Numéro d'affaire: |A17978 |
|N° de contrat: |CIGZ 07287 |
|Domaine technique: |BV31 |
|BURGÉAP |
|27, rue de Vanves |
|92772 BOULOGNE-BILLANCOURT Cedex, France |
|Téléphone: 33(0)1.46 10 25 40 Télécopie: 33(0)1. 46 10 25 49 |
|e-mail: international@burgeap.fr |
|TABLE OF CONTENTS |
|1 Introduction 14 |
|1.1 BIEIP Project Background & Organization 14 |
|1.1.1 Huai River Basin 14 |
|1.1.2 Bengbu Municipality 15 |
|1.1.3 BIEIP Project Organization 17 |
|1.1.4 Contributions of World Bank & Other Financing Agencies 17 |
|1.2 General Background for Consolidated EA 20 |
|1.2.1 Classification of Consolidated EA 20 |
|1.2.2 Preparation of CEA 20 |
|1.3 Coverage of this Consolidated EA 21 |
|1.4 Layout of the Consolidated EA Report 21 |
|2 Institutional & Regulatory Framework 23 |
|2.1 Environmental Institutions and Roles 23 |
|2.2 Applicable Laws & Regulations 24 |
|2.2.1 National Laws & Regulations 24 |
|2.2.2 Local Regulations 25 |
|2.3 Environmental Quality Standards 25 |
|2.3.1 Surface Water Quality Classification and Standards 25 |
|2.3.2 Other Water Quality Standards 26 |
|2.3.3 Standards for Effluents from Industry and from WWTP 26 |
|2.3.4 Standards for Solid Waste Management 26 |
|2.3.5 Other Regulations & Standards 26 |
|2.4 World Bank Safeguards 27 |
|3 Environmental Policy Framework 28 |
|3.1 Main Environmental Issues and Strategies in Huai River Basin 28 |
|3.1.1 Water Pollution 28 |
|3.1.2 Water Scarcity 29 |
|3.2 Bengbu Municipal Environmental Quality Objectives 29 |
|3.2.1 Bengbu Municipal Urban Short-term Construction Plan 29 |
|3.2.2 Bengbu Municipal Wastewater & Storm Drainage Master Plan 30 |
|3.2.3 Bengbu Municipal “Eleventh-five-year” Environmental Protection Objectives 34 |
|3.2.4 Bengbu Municipality Eleventh-five-year Plan for Water Resource Development 37 |
|3.2.5 Construction Plan of Bengbu Ecological City 38 |
|3.3 Project Conformity with the Master Plans 39 |
|4 Environmental Baseline Situation 43 |
|4.1 Topography 43 |
|4.2 Hydrology 43 |
|4.3 Geology 45 |
|4.4 Climate 45 |
|4.5 Soil and vegetation 46 |
|4.6 Air 46 |
|4.7 Surface Water 47 |
|4.8 Groundwater 49 |
|4.9 Water Supply 50 |
|4.10 Storm Water and Wastewater Management 51 |
|4.10.1 Existing Drainage System 51 |
|4.10.2 Existing Combined Drainage System and Storm Drainage System 51 |
|4.10.3 Existing Sewage System 52 |
|4.10.4 Existing Problems 53 |
|4.11 Water Pollution Source 54 |
|4.11.1 Major Industrial Polluters 54 |
|4.11.2 Pollution enterprise situation in the construction place 56 |
|4.12 Solid Waste Management 60 |
|4.13 Ecological Environment 60 |
|4.14 Natural Hazards 61 |
|5 Project Description 62 |
|5.1 Project Summary 62 |
|5.2 Project Quantities of the Proposed Projects 63 |
|5.2.1 Tianhe Flood Control Project 63 |
|5.2.2 Longzi Lake Flood Control and Environment Improvement Project 65 |
|5.2.3 Urban (South of Huai River) Environmental Infrastructure Improvement Project 66 |
|5.2.4 Xijiagou & Baligou Environment Improvement Project 69 |
|5.2.5 Huaishang District Flood Control and Urban Environmental Infrastructure Improvement Project 70 |
|5.2.6 Guzhen County Integrated Environment Improvement Project 71 |
|5.2.7 Huaiyuan County Integrated Environment Improvement Project 74 |
|5.2.8 Wuhe County Mohekou Integrated Environment Improvement Project 76 |
|5.3 Analysis of Project Pollution Sources 77 |
|5.3.1 Construction Period 77 |
|5.3.2 Operation Period 77 |
|6 Investigation & Assessment for the Current Situation of Project Sites 80 |
|6.1 Air Quality 80 |
|6.1.1 Bengbu Urban Area 80 |
|6.1.2 Monitoring Data of Three Counties 82 |
|6.2 Surface water quality 85 |
|6.2.1 Evaluation methods 86 |
|6.2.2 Current Situation of Water Quality in the Major Rivers 86 |
|6.2.3 Water Quality of Canals and Ditches in the Urban Area 93 |
|6.3 Groundwater Quality 97 |
|6.4 Noise 97 |
|6.4.1 Urban Area 98 |
|6.4.2 Three Counties 99 |
|6.5 Sediment Quality 107 |
|6.5.1 Tianhe Project 108 |
|6.5.2 Longzi Lake project 109 |
|6.5.3 Xijiagou and Baligou 113 |
|6.5.4 Guzhen County 114 |
|6.5.5 Huaiyuan County 116 |
|6.5.6 Mohekou in Wuhe County project 117 |
|7 Environmental Impact Analysis 120 |
|7.1 Project Benefits 120 |
|7.1.1 Social Benefits 120 |
|7.1.2 Economic Benefits 126 |
|7.1.3 Environmental Benefits 127 |
|7.2 Environmental Impacts during Project Construction 131 |
|7.2.1 Analysis of air impact 131 |
|7.2.2 Analysis of acoustic environmental impact 136 |
|7.2.3 Analysis of water environmental impact 139 |
|7.2.4 Impact of solid waste 140 |
|7.2.5 Impact on the Eco-environment 141 |
|7.3 Environmental Impacts during Operation 142 |
|7.3.1 Prediction and analysis of water-environmental impact 142 |
|7.3.2 Environmental impact analysis of ecology and landscape 174 |
|7.3.3 Sound environmental impact analysis 177 |
|7.3.4 Environmental impact analysis of solid wastes 182 |
|7.3.5 Atmospheric Environmental Impact Analysis 189 |
|8 Mitigation Measures 197 |
|8.1 Prevention & control measures for pollution under construction period 197 |
|8.1.1 Prevention & control measures for ambient air pollution 197 |
|8.1.2 Prevention & Control Measures for Noise Pollution 200 |
|8.1.3 Prevention & control measures for solid wastes 202 |
|8.1.4 Prevention & control measures for soil erosion 204 |
|8.1.5 Prevention & control measures for water pollution 205 |
|8.1.6 Measures for Reliving Social Environmental Impact 208 |
|8.1.7 Measures for Ecological Environment Protection 209 |
|8.1.8 Prevention & Control Measures for Other Pollutions under Construction 211 |
|8.2 Prevention & control measures for pollution under operation period 211 |
|8.2.1 Prevention & control measures for atmospheric pollution 211 |
|8.2.2 Prevention & control measures for acoustic environment pollution 212 |
|8.2.3 Prevention & control measures for solid wastes pollution 214 |
|8.2.4 Prevention & control measures for water pollution 217 |
|8.2.5 Measures for Ecological Environment Protection 219 |
|9 Alternative Analysis 221 |
|9.1 Zero-project analysis 221 |
|9.2 Comparison and selection of dredging method for Longzi Lake 230 |
|9.3 Comparison and Selection of Closure Pipelines Route of Sewage Outlets to River Located in West of Guzhen 232 |
|9.4 Comparison and Selection for the Establishment of Sewage Treatment Plant 233 |
|9.4.1 Inflowing Water Quality 233 |
|9.4.2 Feasibility for Technology Standard 236 |
|10 Public Consultation 239 |
|10.1 Public Participation 240 |
|10.2 Public participation 246 |
|10.2.1 The First Public Participation Survey 247 |
|10.2.2 Investigation of the 2nd public participation 248 |
|10.2.3 Summary of the conditions of symposiums in the three counties 254 |
|10.2.4 The experts’ consultation opinions 259 |
|11 Summary of EMPs 276 |
|11.1 Environmental Administrative Authority and Duties 276 |
|11.2 Environmental management supervision plan 279 |
|11.2.1 Environmental management supervision plan objective 279 |
|11.2.2 Environmental management supervision plan content 279 |
|11.3 Environmental monitoring plan 280 |
|11.3.1 Environmental monitoring proposal 280 |
|11.3.2 Environmental monitoring authority 280 |
|11.3.3 Environmental monitoring plan 280 |
|12 Resettlement and Social Impacts 293 |
|12.1 RAP 293 |
|12.1.1 Resettlement Proposal 293 |
|12.1.2 Compensation Standard 294 |
|12.1.3 Public Participation 294 |
|12.1.4 Downtown Drainage Sub-project of Bengbu 294 |
|12.1.5 The Sub-project of Guzhen County 296 |
|12.1.6 Sub-project of Huaiyuan County 297 |
|12.1.7 Sub-project of Huaishang District 298 |
|12.1.8 Sub-project of Flood Prevention Control, Water Resource Control and Environment Improving of the Tianhe River 299 |
|12.1.9 Sub-project of Wuhe County 301 |
|12.1.10 Sub-project of Xijiagou 302 |
|12.2 Social Impacts 302 |
|12.2.1 Social Influence Analysis and Prevention Measures in Construction 302 |
|12.2.2 Analysis of the Social Influence after the Completion of the Project 305 |
|13 Conclusions and Recommendations 311 |
|13.1 Conclusions 311 |
|13.1.1 Overall conclusion 311 |
|13.1.2 Program evaluation findings 317 |
|13.2 Suggestions 326 |
|13.2.1 Mohekou Park Project 326 |
|13.2.2 Xijiagou projects 327 |
|13.2.3 Longzi Lake Project 328 |
|LIST OF TABLES |
|Table 1: Linkages between BIEIP and Anhui Water Environment Improvement Project 19 |
|Table 2: Bengbu Municipality Estimated Wastewater Amount（10,000 m3/d） 31 |
|Table 3: Planned Wastewater Drainage System 33 |
|Table 4: Planning of Stormwater Drainage Catchments in Bengbu Urban Area 34 |
|Table 5: Conformity of the Proposed Projects with Existing Master Plans 40 |
|Table 6: Main Characteristics of Water Systems in Bengbu 43 |
|Table 7: Monitoring results of air quality (annual average, unit: mg/m3) 46 |
|Table 8: Statistics of acidic rain in Bengbu (2000-2005) 47 |
|Table 9: Water quality classification of Huai River within Bengbu (2000-2006) 47 |
|Table 10: 2006 monthly average water quality monitoring data of Huai River 48 |
|Table 11: Groundwater quality 50 |
|Table 12: Water quality of major centralized drinking water source in Bengbu (Upstream of Bengbu Gate on Huai River) 51 |
|Table 13: Non-compliant months for water intake upstream of Bengbu Gate 51 |
|Table 14: Summary of Existing Drainage System in Bengbu Urban Area 51 |
|Table 15: Current Progress of Existing Sewage Systems 53 |
|Table 16: The statistical table of pollution discharge situation from the key pollution enterprise in Bengbu City in 2006 54 |
|Table 17: Investigation on the discharged wastewater situation of the pollution enterprises in the place of the construction 58 |
|Table 18: Solid waste production and disposal in Bengbu (2000-2005) 60 |
|Table 19: Summary of BIEIP sub-projects 62 |
|Table 20: Quantities of main structures for Tianhe storm drainage station 64 |
|Table 21: Summary of Major Project Quantities of Longzi Lake Sub-project 65 |
|Table 22: Quantities of storm drainage pumping station for the urban project 66 |
|Table 23: Quantities of Pipe Network for the Urban Project 66 |
|Table 24: Project Quantities of Xijiagou & Baligou Project 69 |
|Table 25: Major quantities of Huaishang district project 70 |
|Table 26: Project Quantities of Guzhen county project 71 |
|Table 27: Quantities of Huaiyuan county project 74 |
|Table 28: Project Quantities of Mohekou Project 76 |
|Table 29: Statistics of Monitored Data on Air Quality in Bengbu in 2005 80 |
|Table 30: Statistics of Comprehensive Pollutant Indicators of Major Pollutants at Each Monitoring Site in 2005 81 |
|Table 31: Air Quality Monitoring and Assessment around Tianhe in 2005 82 |
|Table 32: Record of Meteorological Parameters for Air Quality Monitoring for Wuhe Project 83 |
|Table 33: Statistics of Air Quality Monitoring for the Wuhe Project 83 |
|Table 34: Results of Air Quality Assessment 84 |
|Table 35: Results of Air Quality Assessment 85 |
|Table 36: Results of Routine Water Quality Monitoring in the Huaihe River 87 |
|Table 37: Single Factor Evaluation of Annual Mean of Water Quality in the Bengbu Section of the Huaihe River in 2006 87 |
|Table 38: Routine monitoring of water quality in Tianhe River in 2006 88 |
|Table 39: Single factor evaluation of water quality in Tianhe River 88 |
|Table 40: Water quality monitoring in Longzi Lake 89 |
|Table 41: Single Factor Evaluation of Water Quality in Longzi Lake 90 |
|Table 42: Evaluation of surface water quality in the Guo River 90 |
|Table 43: Single factor evaluation of water quality in Guo River 91 |
|Table 44: Monitoring results in Guzhen section of Hui River during 2001～2005 91 |
|Table 45: Single Factor Evaluation of Water Quality in the Hui River 92 |
|Table 46: Monitoring results of the section water quality in Huaihongxin River of Huaihe River and Xiangjian Lake 93 |
|Table 47: Single Factor Evaluation of Water Quality in Huaihongxin River 93 |
|Table 48: Monitoring Results of Water Quality in Xijiagou 93 |
|Table 49: Single Factor Evaluation of Xijiagou Water Quality 94 |
|Table 50: Results of sanpudagou water quality monitoring 94 |
|Table 51: Single factor evaluation of sanpudagou water quality 95 |
|Table 52: Water quality monitoring in Huaiyuan pond 95 |
|Table 53: Single factor evaluation of water quality in Huaiyuan pond 96 |
|Table 54: Monitoring of water quality in Zhanggong Mount Pond 96 |
|Table 55: Groundwater Quality Monitored in the Surrounding Area of Longzi Lake 97 |
|Table 56: Evaluation of underground water quality in Longzi Lake Area 97 |
|Table 57: Monitored Value of Urban Noise Pollution in 2006 98 |
|Table 58: Monitored data on road traffic noise pollution in 2006 in Bengbu 98 |
|Table 59: Results and evaluation of noise pollution monitoring around the construction Site 100 |
|Table 60: Results of noise pollution monitoring around Longzi Lake 101 |
|Table 61: Noise Monitoring Results for the Area Related to Urban Infrastructure Sub-project 101 |
|Table 62: Monitoring results of noise pollution around Baligou and Xijiagou 103 |
|Table 63: Monitoring results of urban noise pollution 104 |
|Table 64: Special monitoring of noise pollution 105 |
|Table 65: Monitoring results of noise pollution in the Huaiyuan project 106 |
|Table 66: Monitoring Results of Urban Noise Pollution in Mohekou Industry Zone 107 |
|Table 67: Monitoring Results of the Sediment and Coastal Soil in Tianhe River 108 |
|Table 68: Ecological Risk Factors and Indices of Heavy Metals in the Sediment in Tianhe River and its Surrounding Farmland Soil 109 |
|Table 69: Vertical distribution of bottom mud in Longzi Lake 110 |
|Table 70: Monitoring results of bottom mud in Longzi Lake 110 |
|Table 71: Monitoring results of the bottom mud in Longzi Lake area 111 |
|Table 72: Background soil value in each province of China 112 |
|Table 73: Ecological risk factors and indices of heavy metals in bottom mud of Longzi Lake 112 |
|Table 74: Monitoring results of soil environmental quality in Baligou and Xijiagou 113 |
|Table 75: Evaluation of ecological risks of dredged bottom mud in Baligou and Xijiagou 114 |
|Table 76: Special monitoring results of bottom mud for Guzhen project 114 |
|Table 77: Toxic Response Factor of Metals 115 |
|Table 78: Division of Ecological Risk Factors and Indices 115 |
|Table 79: Evaluation of Ecological Risk of Bottom Mud 116 |
|Table 80: Detection results of bottom mud for Haiyuan project 117 |
|Table 81: Monitoring results of the bottom mud in the Industry Park 118 |
|Table 82: Evaluation of ecological risks of dredged bottom mud 118 |
|Table 83: Schedule of storm drainage pumping stations to be built and extended 120 |
|Table 84: Estimated benefit from water supply by Mohekou Surface Water Works 126 |
|Table 85: Estimated operating benefits of Mohekou Sewage Treatment Plant 127 |
|Table 86: Estimated annual volume of sewage discharge in the urban plan of Bengbu 128 |
|Table 87: Statistics of reduction in total volume of the sewage treatment plant in Mohekou Park 129 |
|Table 88: Car dust with different speed and road cleanness 133 |
|Table 89: Settling velocity of dust particles with different size 134 |
|Table 90: Monitoring results of TSP concentration downwind on the construction site 134 |
|Table 91: Standard of six-rating classification of odor intensity 135 |
|Table 92: Odor intensity of dredged bottom mud （dry excavation in the dry pond）in Nanpaozi of Mudanjiang 135 |
|Table 93: Sound levels of major construction machinery 136 |
|Table 94: Calculation of noise attenuation of major noise-making machinery in the construction period 137 |
|Table 95: Calculation of noise attenuation of major noise-making machinery in the construction period 138 |
|Table 96: Statistical table of pollution discharge of city pollution discharge outlet 143 |
|Table 97: Estimated results of collection rate of Bengbu City sewage pipe network 144 |
|Table 98: Statistical analysis table of water quality of Bengbu urban pollution discharge outlets in 2005 145 |
|Table 99: Reverse deduction estimate table of water quality of untreated sewage water of Bengbu City in 2005 147 |
|Table 100: Estimated table of yearly total emissions of the pollutants of 148 |
|Table 101: Statistical table of date of pollution discharge outlet and monitoring section of Bengbu City 150 |
|Table 102: Statistical table of drainage of Bengbu City’s sewage treatment plants 10000 m3/d 151 |
|Table 103: Summary statement of inlet and outlet water quality of the sewage treatment plants 154 |
|Table 104: List of prediction contents of water environment of Bengbu section of the Huaihe River in 2010 155 |
|Table 105: Summary statement of conditions of prediction and parameters 155 |
|Table 106: Prediction table of water quality of the sewage treatment plant under the operation period 156 |
|Table 107: Prediction results of water quality during normal operation period of the sewage treatment plant 164 |
|Table 108: Prediction results of accidental discharge water quality ofthe sewage treatment plant 167 |
|Table 109: Dredging wastewater composition of silt of the Sea of Grass 168 |
|Table 110: Nitrogen and phosphorus contents during SS equivalent in the different dredging areas of the dredging project of the Sea of |
|Grass, the Dianchi River. 170 |
|Table 111: Prediction emission concentration of project engineering wastewater 170 |
|Table 112: Prediction of the contribution value of the concentration of the wastewater emission to the water quality of the Longzi Lake 171 |
|Table 113: Comparison situation of water quality before and after the implementation of the Chaohu River dredging project 174 |
|Table 114: Prediction results of Tianhe drainage pump station’s noise 178 |
|Table 115: Prediction results of the Longzi Lake drainage pump station’s noise 179 |
|Table 116: Prediction parameters table of typical sections’ noise 181 |
|Table 117: Noise prediction table of typical sections with different distances Unit：dB(A) 181 |
|Table 118: Comparison of the Longzi Lake dredging sludge 182 |
|Table 119: Comparison of Baligou, Xijiagou sediment with the standard 185 |
|Table 120: Emissions of main solid wastes of sewage treatment plant 186 |
|Table 121: Statistical table of seasonal and yearly average temperature and wind speed of Bengbu City 189 |
|Table 122: Statistical results of wind direction and frequency in each month of the year 189 |
|Table 123: Statistical table of distribution frequency of Atmospheric stability 191 |
|Table 124: Rainfall Characteristics Table 191 |
|Table 125: Average wind speed, hour concentration prediction results of the downwind H2S with the different stabilities 193 |
|Table 126: Average wind speed, hour concentration prediction results of the downwind NH3 with the different stabilities 194 |
|Table 127: Calculating results of sanitation protection distance of sewage treatment plant 196 |
|Table 128: Test Results for Sprinkling & Dust-Control on Construction Site 198 |
|Table 129: Zero-option Comparison of Tianhe Flood Control Project 222 |
|Table 130: Zero-option Comparison of Longzi Lake Flood Control and Environment Improvement Project 223 |
|Table 131: Zero-option Comparison of Urban (South of Huai River) Environmental Infrastructure Improvement Project 224 |
|Table 132: Zero-option Comparison of Xijiagou & Baligou Environment Improvement Project 225 |
|Table 133: Zero-option Comparison of Huaishang District flood control and Urban Environmental Infrastructure Improvement Project 226 |
|Table 134: Zero-option Comparison of Guzhen County Integrated Environment Improvement Project 227 |
|Table 135: Zero-option Comparison of Huaiyuan County Integrated Environment Improvement Project 228 |
|Table 136: Zero-option Comparison of Wuhe County Mohekou Integrated Environment Improvement Project 229 |
|Table 137: Advantages & Disadvantages Comparison for Dredging Methods 231 |
|Table 138: Comparison of Closure Pipelines Route Proposals of Drinking Water Source 232 |
|Table 139: Survey for Enterprise Basic Information of MoHekou Industrial Park 234 |
|Table 140: Inflowing Water Qaulity of Sewage Treatment Plant in Haihua and Nanking Chemical Area 236 |
|Table 141: Schedule for CODcr Removal Effect and Predicated Outflowing Water Quality on Key Technologies 237 |
|Table 142: Summary of public participation and information publicity work 239 |
|Table 143: Data sheet of information publicity of Bengbu World Bank Project 244 |
|Table 144: Sheet of the public opinions and the feedback results 252 |
|Table 145: Sheet of the results summary of the symposium on the environmental impact of the Huaiyuan Project 254 |
|Table 146: Sheet of the results summary of the conference on the environmental impact of the Guzhen County Project 256 |
|Table 147: Sheet of the results summary of the conference on the environmental impact of the Mohekou Project in the Wuhe County 258 |
|Table 148: List of the summary of experts’ opinions on Bengbu World Bank loan project 260 |
|Table 149: Summary of the public participation survey in the EIA of the Bengbu World Bank Loan Project 264 |
|Table 150: Managerial Relationship between Administrative Authority and Project 276 |
|Table 151: Environmental monitoring plan of the Tianhe Project during construction period 282 |
|Table 152: Environmental monitoring plan of Longzi Lake project during construction period 283 |
|Table 153: Environmental monitoring plan of Longzi Lake project during operation period 284 |
|Table 154: Environmental monitoring plan of urban project during construction period 284 |
|Table 155: Environmental monitoring plan of urban project during operation period 285 |
|Table 156: Environmental monitoring plan of Xijiagou & Baligou project during construction period 286 |
|Table 157: Environmental monitoring plan of Huaishang project during construction period 287 |
|Table 158: Environmental monitoring plan of Huaishang project during operation period 287 |
|Table 159: Environmental monitoring plan of Guzhen project 288 |
|Table 160: Environmental monitoring plan of Huaiyuan Project during construction period 290 |
|Table 161: Environmental monitoring plan of Huaiyuan project during operation period 290 |
|Table 162: Environmental monitoring plan of Mohekou Project during construction period 291 |
|Table 163: Environmental monitoring plan of Mohekou Project during operation period 292 |
|LIST OF FIGURES |
|Figure 1: Map of Huai River Basin 14 |
|Figure 2: Topographic map of Huai River Basin and its relative location compared with other major rivers in China 15 |
|Figure 3: Location of Bengbu in P.R. China 16 |
|Figure 4: Districts & Counties of Bengbu Municipality 16 |
|Figure 5: Organization chart of BIEIP 17 |
|Figure 6: Coverage of World Bank and Japanese loan-funded projects in Bengbu 18 |
|Figure 7: Overview of Bengbu Urban Wastewater and Storm Drainage Plan 32 |
|Figure 8: Aquatic Systems in Bengbu Municipality 44 |
|Figure 9: Variation of water quality classification for Huai River (2004-2006) 48 |
|Figure 10: Water Intake & Water Quality Monitoring Cross-sections along Huai River 49 |
|Figure 11: Statistical analysis chart of pollution discharge volume of Bengbu City pollution discharge outlets 144 |
|Figure 12: Statistical analysis chart of CODcr emissions of Bengbu City 146 |
|Figure 13: Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution discharge outlets in 2005 146 |
|Figure 14: Statistical Chart of Sewage Discharge Amount in 2010 149 |
|Figure 15: Statistical Chart of Total Discharge Amount of CODcr in 2010 149 |
|Figure 16: Statistical Chart of Total Discharge Amount of Ammonia Nitrogen in 2010 150 |
|Figure 17: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact 158 |
|Figure 18: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact 159 |
|Figure 19: 2010 Urban Drainage Proposal A, B - Prediction Chart of Ammonia Nitrogen Discharge Impact 160 |
|Figure 20: 2010 Urban Drainage Proposal C, D - Prediction Chart of Ammonia Nitrogen Discharge Impact 161 |
|Figure 21: Prediction results of project engineering wastewater discharge on the water 172 |
|Figure 22: Annual wind direction rose diagram of Bengbu City 191 |
|Figure 23: Online Public Notification of Project Information 242 |
|Figure 24: Project Public Notification in the Project Location 243 |
|Figure 25: Public Notification of Project Information in Newspaper 243 |
|Figure 26: Public participation survey and public workshops 247 |
Acronyms and Abbreviations
|AIEC |Average incremental economic cost |
|AWEIP |Anhui Water Environment Improvement Project |
|BDC |Bengbu Drainage Company |
|BIEIP |Bengbu Integrated Environment Improvement Project |
|BMAD |Bengbu Municipal Administration Division |
|BOT |build-operate-transfer |
|CB |Construction Bureau |
|CEA |Consolidated Environmental Assessment |
|COD |Chemical Oxygen Demand |
|DI |Design Institute |
|DRA |Design Review and Advisory (consultant BURGEAP) |
|DRC |Development and Reform Commission |
|EA |Environmental Assessment |
|EDD |Economy Development District |
|EIA |Environmental Impact Assessment |
|EIRR |Economic internal rate of return |
|EOCC |Economic Opportunity Cost of Capital |
|EPB |Environmental Protection Bureau |
|FSR |Feasibility study report |
|GDP |Gross Domestic Product |
|HH |Household |
|HRWRC |Huai River Water Resource Commission |
|HTZ |High Tech Zone |
|IDC |Interest during construction |
|MoF |Ministry of Finance |
|NBF |nonblank-financed |
|NCMDI |North China Municipal Design Institute |
|O&M |Operation and Maintenance |
|PIU |Project Implementation Unit |
|PMO |Project Management Office |
|PS |Pumping station |
|PSP |Private Sector Participation |
|RAP |Resettlement Action Plan |
|SA |Social Assessment |
|SEPA |State Environment Protection Agency |
|SOE |State Owned Enterprise |
|SWAP |Sector Wide Approach |
|TA |Technical assistance |
|WB |World Bank |
|WRB |Water Resources Bureau |
|WTP |Water treatment plant |
|WWTP |Waste Water Treatment Plant |
1. Introduction
1. BIEIP Project Background & Organization
1. Huai River Basin
The Huai River Basin is the third largest river basin of China covering 270,000 km2 of four provinces (Anhui, Henan, Jiangsu and Shandong). Its total population is 165million[1], and its population density is 611persons/km2, which is 4.8 times of the national level.
Due to its central location in China, Huai River Basin has a very developed transportation system, which consists of several key railways, Jinghang Canal, Huai River, inland rivers and highways extending in all directions. Featured by its typical agricultural economy, the basin is also strategically important for the whole country from an economic perspective. It produces 1/6 of the nation’s food and 1/4 of the national cash crops with only 1/12 of the national arable land area. However, the gross industrial output value, GDP and per-capita GDP of the basin are still lower than the national levels, that is, the basin still belongs to the economically undeveloped area.
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Figure 1: Map of Huai River Basin
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Figure 2: Topographic map of Huai River Basin and its relative location compared with other major rivers in China
The particular geographical and climatic conditions and the interference of human activities for decades have made the Huai River Basin very vulnerable to floods and droughts. Although a flood control system consisting of reservoirs, flood storage and discharge projects, dykes, rivers and flood ways has been developed for the basin since the foundation of the P.R.C., it still suffers a lot from the floods once every three to five years. In addition, despite the great efforts put by the central and local governments since 1990’s, the water pollution remains a major concern for the Huai River basin due to the rapid industrial development and urbanization in this area.
2. Bengbu Municipality
Bengbu Municipality, located in the northeast of Anhui province, has four districts (Longzihou, Bangshan, Yuhui and Huaishang), three counties (Huaiyuan, Wuhe and Guzhen) and two development zones (High-tech Industry Development Zone and Economic Development Zone) under its administration. It covers an area of 5952 km2 (4.27% of the provincial area) and a population of 3.49 million (5.36% of the province).
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Figure 3: Location of Bengbu in P.R. China
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Figure 4: Districts & Counties of Bengbu Municipality
Bengbu is the first municipality of Anhui Province, which is also the most important traffic hub in East China and the biggest port city along Huai River. As an old industrial city, Bengbu is the Processing /Technology and Commerce Centre in Northern Anhui. The major industries in Bengbu include deep processing of agricultural products and refined chemicals, glass and glass products, special machinery manufacture and automobile parts. With the approval of the State Council, it is also one of the pilot cities in Middle China benefiting from the same national policies as applied to the revitalization of Old Industrial Base in Northeast China. With the rapid economic development and urbanization, the current per capita GDP of Bengbu here has reached 10000yuan. During the “Tenth-five-year” period, Bengbu Municipality has attracted 43million USD foreign investment and 13.5billion RMB domestic investment from out of Bengbu, mainly in the secondary and tertiary industries.
However, due to the insufficient industrial investment and irrational industrial structure, the gross industrial output of the city is 9.65billion yuan, accounting for 5.26% of the total provincial gross industrial output and ranked No.9 in the province behind the municipalities such as Hefei, Wuhu, Ma’anshan and Anqing.
In addition, as an important city in the middle and lower reaches of Huai River Basin, Bengbu also suffers a lot from frequent flooding, ecosystem deterioration, and water pollution. Both urban environment and water supply are endangered by the incompletion of urban sewage network and wastewater treatment facilities.
3. BIEIP Project Organization
Under the leadership of the Municipal Project Leading Group, the Bengbu Municipal World Bank Project Management Office (“the municipal PMO”) has been designated by the municipal government as its representative for the project coordination and management. Consequently, the municipal PMO is at the centre of the project management process. Requests for administrative and technical assistance funds originate with the municipal PMO. Requests for reimbursements of construction costs originate from the Implementing Agencies through the local PMOs for review and approval and then to Anhui Provincial Finance Bureau for review, approval and forwarding to the Bank.
The municipal PMO appoints technical assistance (TA) consultants for the project, selects the tendering companies, and upon recommendation of the technical assistance consultants, designates the construction supervision company. The local Project Offices may also designate local construction supervisors. Each project has its own project management office, which represents the project area or the county.
At municipal level the provincial Audit Bureau has delegated the audit responsibility to the Municipal Audit Bureau. At municipal level, several agencies are involved at various degrees of responsibilities: Municipal DRC, Municipal Finance Bureau, Construction Commission, Municipal EPB, Municipal Water Resources Bureau (WRB).
The French Government provided a grant to the Bengbu Municipal Government for a technical assistance from the French consulting company BURGEAP, to assist the municipal government in project planning and design, and for the preparation of the technical, environmental and financial documentation to be presented to the WB for loan eligibility.
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Figure 5: Organization chart of BIEIP
4. Contributions of World Bank & Other Financing Agencies
Due to the important location in Huai River Basin, the Municipality of Bengbu has also benefited from some other on-going projects financed by World Bank and other financing agencies, including Huai River Pollution Control Project (P047345, World Bank), Huai River Basin Flood Management and Drainage Improvement Project (P098078, World Bank) and Anhui Water Environmental Improvement Project (AWEIP, Japanese loan).
Huai River Pollution Control Project was approved in March 2001 by World Bank, which mainly aims at the improvement of wastewater collection and treatment in a number of municipalities in Anhui and Shandong Provinces including Bengbu. Its investments in Bengbu includes the construction of 28.5km sewers, 70.4km interceptors, 1.5km pumping mains and 5 pumping stations, most of which are located in Bengbu urban area and Huaishang District. The project is expected to be completed by end of 2007.
Huai River Water Resources Commission started the preparation of another major flood management project for potential financing by the Bank in 2005, which is called Huai River Basin Flood Management & Drainage Improvement Project (P098078). The project would aim at the increase of local agricultural productivity and farmers’ incomes by better protecting against floods, the properties and lives of many people living in predominantly rural areas of the Huai River Basin. This would be done through the provision of improved flood control and drainage works and strengthened institutional capability to effectively reduce the severity and impact of flooding and water logging in Anhui, Henan, Jiangsu and Shandong provinces. As an important city in the river basin, the involvement of Bengbu in this project would certainly improve the dialog between the municipality and the basin-wide administration.
The Anhui Water Environmental Improvement Project, financed by Japanese loan (JBIC), which aims to reduce polluted water discharged into the Huai River and ensure a stable supply of safe drinking water to Bengbu City, by developing its water supply and sewerage infrastructure. Specifically, the Project consists of five sub-projects, i.e. Yangtaizi WWTP; 134.84km sewage network and pumping stations in Bengbu city; Guobei WWTP, 59.3km sewage network, WTP expansion, 100km water supply network and 110km drainage network in Huaiyuan County; 30km water supply network and 40km drainage network in Wuhe County and water supply & sewage system in Guzhen County. The loan agreement has been signed in May 2007 with the total project cost of 110.6million yuan.
The coverage of the above mentioned projects is shown in Fig. 5 together with the locations of the proposed BIEIP components. It is shown that the three projects have covered the urban area and the three counties of Bengbu Municipality. However, the Huai River Pollution Control Project and the Anhui Water Environment Improvement Project mainly focus on the improvement of municipal infrastructure, such as sewers, sewage pumping stations, the WWTPs and the WTPs; while the proposed BIEIP will mainly focus on the improvement of local flood control and storm management facilites, such as storm pumping stations, drainage network and river de-silting.
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Note: For AWEIP, there is no exact project location available. The red dots only stand for the rough project location.
Figure 6: Coverage of World Bank and Japanese loan-funded projects in Bengbu
In addition, the linkages between the World Bank financed BIEIP and the Japanese Loan funded Anhui Water Environment Improvement Project are analyzed in details in the following table.
Table 1: Linkages between BIEIP and Anhui Water Environment Improvement Project
|AWEIP |BIEIP |The linkage of BIEIP components with |
| | |AWEIP |
|Sub-project name |Related components |Sub-project name |Related components | |
|Yangtaizi WWTP |Yangtaizi WWTP |Urban Drainage System|Storm network in the old|Some sewage network under BIEIP in the |
| | |and Storm Pumping |urban area, HTZ, EDD and|old urban area, EDD and Longzi Lake Dis. |
| | |Stations |Longzi Lake Dis. |are connected to the proposed WWTP under |
| | | | |AWEIP. |
|Bengbu Municipal |East Shengli Rd. sewage | |Sewage and storm |The wastewater collected by the sewage |
|Drainage System |pumping station | |drainage network in |network under BIEIP in Longzi Dis. will |
|Project | | |Longzi Lake Dis. |be pumped by the pumping station under |
| | | | |AWEIP to Yangtaizi WWTP. |
| |Huangshan Rd. sewage | |Storm & sewage network |The wastewater collected by the sewage |
| |pumping station | |scattered in the HTZ |network under BIEIP in the southeast of |
| | | | |HTZ will be pumped by the PS under AWEIP |
| | | | |to the planned South City WWTP. |
| |Huangshan sewage and storm| | |The sewage network along Bengxi Rd., |
| |drainage network | | |Youyi Rd., South Changzheng Rd. and South|
| | | | |Changqing Rd. under BIEIP is connected |
| | | | |with the sewer trunk under AWEIP. |
| |Storm drainage network |Huaishang Flood |Sewage network west of |AWEIP provides the storm drainage network|
| |covering the whole |Control & Integrated |North Daqing Rd. |and BIEIP provides the sewage network for|
| |planning area of Huaishang|Environment | |the same area. |
| |Dis. |Improvement Project | | |
| | | |Urban Road on the |AWEIP and BIEIP complement each other to |
| | | |northern bank of Huai |cover the infrastructure for the new |
| | | |River together with 21 |developed area along the northern dyke of|
| | | |smaller roads and their |Huai River. |
| | | |associated storm and | |
| | | |sewage network | |
| |Rehabilitation of five | |Wuxiaojie Storm PS, |The canal rehabilitation under AWEIP |
| |canals: Wangxiaogou, | |Expansion of Xiaobengbu |provides support to the PS projects under|
| |Xiaobengbu Wuxiaojie, | |PS, and Wangxiaogou PS |BIEIP. |
| |Wuxiaojie No.1 and | | | |
| |Wuxiaojie No.2 | | | |
|Water Supply and |Project location: the |Wuhe Flood Control |Mohekou Town |Two different areas of Wuhe County are |
|Drainage Network of|Southern New Urban Area of|and Ecological | |covered respectively by AWEIP and BIEIP. |
|Wuhe County |Wuhe County |Improvement Project | | |
|Guzhen Water Supply|Water Supply & Sewage |Guzhen Flood Control |Drainage Network of |Two different areas of Guzhen County are |
|& Sewage System |System for the Southern |& Ecological |Guzhen County |covered respectively by AWEIP and BIEIP. |
| |Industrial Park of the |Improvement Project | | |
| |County | | | |
| |Phase II of Guzhen No.2 | |Wastewater interception |The wastewater interception project under|
| |WTP | |project for the west of |BIEIP is just to prevent the direct |
| | | |Guzhen |wastewater discharge from the west of |
| | | | |Guzhen into Hui River to protect the |
| | | | |water quality of Hui River, the water |
| | | | |source of Guzhen No.2 WTP. |
|Huayuan Guobei |WTP for Guobei, the new |Huaiyuan Flood |Storm drainage network |The proposed storm pumping stations under|
|Water Environment |industrial park and the |Control & Environment|and roads for the West |BIEIP are for the drainage network under |
|Project |food processing park |Improvement Project |Food Processing Park |BIEIP and AWEIP. |
| |Storm drainage network of | |Storm drainage network | |
| |the township | |and pumping stations for| |
| | | |the township | |
| |Guobei WWTP (including the| |/ | |
| |wastewater reuse plant) | | | |
2. General Background for Consolidated EA
1. Classification of Consolidated EA
In accordance with PRC National Regulations and the World Bank Operational Policy 4.01 related to Environmental Assessment, a “Category A - Consolidated EA” is to be prepared for the whole BIEIP Project including flood control, water resource management, wastewater and water supply components. This consolidated EA report will a comprehensive analysis of project targets, specific impacts of the sub-components with their mitigation measures and outlines the dominant socio-economic improvements to the welfare of communities. This report is complemented by:
i) Consolidated Resettlement Action Plan (RAP);
ii) Consolidated Environmental Management and Monitoring Plan (EMP);
iii) EA Summary Report, and
iv) Individual EA Reports for each sub-project component.
2. Preparation of CEA
The Project technical and financial preparation carried out by Chinese local organizations has been supported by international assistance to BIEIP provided by Burgeap, the Design Review and Advisory Services (DRAS) Consultants to the BIEIP World Bank project management office who is responsible for the overall preparation and coordination of the project.
For the 8 sub-projects, Zhongnan Design Institute and Bengbu Municipal Survey & Design Institute were appointed by the project owner (BIEIP PMO) to carry out the feasibility studies and to produce Feasibility Study Reports (FSR). For the environmental assessment documents, the PMO has appointed the North China Municipal Design Institute (NCMDI), a Class A certified EA institute based in Tianjin, to prepare all the individual EAs. NCMDI is also appointed to prepare the Chinese Consolidated EA for BIEIP as well as the Environmental Management Plans (one per sub-project).
In accordance with the Government Regulation “Environmental Impact Assessment Law” of September 2003, Strengthening Environmental Impact Assessment Management for Construction Projects Loaned by International Finance Organisation” of June 21, 1993 and the World Bank Safeguards Operational Policy, the PMO has requested the DRA Consultants to assist in the preparation of the English consolidated EA, as well as to prepare the English versions of the EMP and of the EA Summary. Various assistances have been provided by DRA consultants since February 2007 to introduce the World Bank Safeguards requirements in the preparation of EIA documentation, including the report framework for individual EIAs and consolidated EA.
The present Consolidated EA report is based on individual EA studies carried out for each sub-project of the BIEIP. It has been prepared by SCMDI with the assistance of the DRAS Consultant. According to Chinese regulations, the provincial EPB is responsible for review and approval of four individual EA reports for the four sub-projects with the project cost over 100million RMB (Urban Wastewater and Storm Drainage Project, Longzi Lake Storm Management & Environmental Improvement Project, Huaishang Flood Control, Storm Management and Urban Environmental Infrastructure Improvement Project, and Wuhe County Storm Drainage and Ecological Improvement Project), and the municipal EPB is responsible for review and approval of the individual EA reports for the other four sub-project with the project cost less than 100million RMB (Tianhe Flood Control Project, Xijiagou Canal Flood Management and Environmental Improvement Project, Guzhen County Storm Drainage and Ecological Improvement Project and Huaiyuan County Storm Drainage and Ecological Improvement Project).
3. Coverage of this Consolidated EA
The Consolidated EA is being prepared strictly in accordance with National and Provincial laws, codes and criteria relating to environmental protection. It satisfies the Chinese EA system, whilst at the same time gives full attention to the requirements of the World Bank’s environmental safeguards, and more precisely those of the Operational Policy 4.01 for EA.
The CEA is based on the collection and use of existing materials (secondary data) as well as data resulting from field investigations carried out during the preparation of Individual EAs for each sub-project. The CEA intends to provide a comprehensive and synthesized view of environmental implications resulting from the implementation of the 8 sub-projects.
4. Layout of the Consolidated EA Report
The following chapters of the CEA report present the detailed analyses conducted as part of the overall Environmental Assessment and follows closely the report format recommended in WB OP 4.01/Appendix B:
• Chapter 2 "Institutional and Regulatory Framework" discusses the policy, legal, institutional and administrative framework within which the EA has been conducted describing both the environmental requirements of the PRC and of the World Bank;
• Chapter 3 "Environmental Policy Framework" describes the key environmental issues observed at basin level and in the project area, with on-going sector policies;
• Chapter 4 "Environmental Baseline Situation" describes the background environmental and social conditions (physical, biological and socio-economic conditions) within which the project components are developed, both on a regional scale and on a site specific level;
• Chapter 5 "Project Description" provides a summary technical presentation of the proposed subcomponents along with their implementation schedule and costs;
• Chapter 6 "Environmental Impacts Assessment" provides prediction and assessment of likely environmental, economic and social impacts, both positive and negative, for the proposed BIEIP project;
• Chapter 7 "Mitigation Measures" describes the recommended mitigation measures during project construction and operation;
• Chapter 8 "Alternatives Analysis" compares feasible alternatives to the proposed project components, including the “zero-project” scenario;
• Chapter 9 "Public Consultation & Information Disclosure" describes the activities and results of Public Consultation and information disclosure;
• Chapter 10 "Summary of EMPs" provides information on the Environmental Management Plans covering mitigation measures, monitoring and institutional strengthening as well as activities and budget developed for each concerned district/county;
• Chapter 11 "Resettlement and Social Impacts" summarizes the main conclusions of individual RAPs for BIEIP components and the consolidated social assessment report for BIEIP;
• Chapter 12 "Conclusions and Recommendations" provides major findings of the study, including short and long terms benefits of the Project.
2. Institutional & Regulatory Framework
1. Environmental Institutions and Roles
The State Environmental Protection Administration (SEPA): Since March 1998, SEPA has become a ministerial-level authority directly under the State Council responsible for the environmental protection in China. SEPA is responsible for the drafting and interpretation of pertinent standards, laws and regulations and guidelines, as well as the supervision and inspection of their implementation. As stipulated by the “Provision for Management of Environmental Protection in Construction Projects”, since the year 2003, Classd reviews and approvals of construction project EIA documents have been exercised by the Environmental Protection Bureaus (EPBs) at all levels.
For projects invested with budget funds from the central government and designated as budgetary investment projects, projects dedicated with special funds, nuclear projects, top-confidential projects and project of military industry, as well as cross-region or cross-river basins, the EIA documentation should be reviewed and approved by SEPA. For projects only requiring EIA reporting sheet and EI registration table, the EIA documentation will be reviewed and approved, under the authority of SEPA, by the EPB institutions of the provinces, autonomous regions or municipalities where the construction projects are to be implemented.
The Provincial Environmental Protection Bureau (Provincial EPB): The Provincial Environmental Protection Bureau (EPB) is responsible for environmental planning, monitoring and regulation. The principal duties of the Provincial Environmental Protection Bureau are to frame local legislation and standards, to supervise and administer the control of industrial pollution, to set tariffs for effluents, to study and monitor pollution and to plan for pollution control and environmental management. The EPB manage revolving loan funds (funded by a major portion of polluter fines for non-standard discharges).
The Municipal Environmental Protection Bureau (Municipal EPB): The main responsibilities of the municipal EPB include:
▪ Implementing the national and provincial policies, laws, rules and standards on environment protection;
▪ Making plans on municipal environment protection: participating in the establishment of municipal economic and social development middle-term and long-term plans; managing the work of municipal environmental statistic and information; publishing the report of municipal environment status;
▪ Environment protection of atmosphere, water body, soil in the city: supervising the prevention and treatment of polluters such as wastewater, waste gas, noise, solid wastes, poisonous chemical products, nuclear radiation, radiant products and motor vehicles; investigating and treating the environment pollution accidents and mitigating the pollution plumes;
▪ Approving the environmental impact assessment report of construction project; supervising the disposal of municipal pollution sources;
▪ Supervising and managing the construction and protection of municipal natural ecologic environment; supervising the protection of biodiversity, wild animals and plants and wetland;
▪ Communication and education on environment protection; popularizing the scientific and law knowledge of environment.
Bengbu Municipal Environmental Protection Bureau exerts leadership on the EPBs of the district/counties involved in BIEIP. According to the Chinese regulations, the individual EIAs for the sub-projects under BIEIP will be reviewed and approved by Anhui Provincial EPB and Bengbu Municipal EPB according to their different cost estimation.
2. Applicable Laws & Regulations
1. National Laws & Regulations
Since 2002, the EIA process in China is under the Environmental Impact Assessment Law (October 2002). Several other national laws and regulations provide a legal background for EIA:
▪ Environmental Protection Law of the People’s Republic of China, Dec. 1989;
▪ Law of Water Pollution Control of the People’s Republic of China, May 1996;
▪ Law of Air Pollution Control of the People’s Republic of China, April 2000;
▪ Law of Environmental Noise Pollution Control of the People’s Republic of China, Oct. 1996;
▪ Law of Water of the People’s Republic of China, Oct. 2002;
▪ Law of Cleaner Production Promotion of the People’s Republic of China, June 2002;
▪ Law of Water and Soil Conservation of the People’s Republic of China, June 1991;
▪ Law of Solid Waste Pollution Control of the People’s Republic of China, April 2005;
▪ Detailed Rules for Implementation of “Law of Water Pollution Control of the People’s Republic of China”, No. 284 order by the State Council, March 2003;
▪ Regulation of River Administration of the People’s Republic of China, June 1988;
▪ Related Regulations on the Management of Construction Project within River Administration Scope, April 1992;
▪ Regulation on the Environmental Protection Management of Construction Projects, State Council, 1986;
▪ Regulation on Pollution Prevention Administration for Drinking Water Source Protection Areas, SEPA, July 1989;
▪ Protection Program for National Ecological Environment, GUOFA[2000]No.38, State Council, Nov.2000;
▪ Environmental Protection Management for Construction Projects, State Council, November 1998;
▪ Regulations on the Certificate for the EIA of Construction Projects (1989 SEPA);
▪ Categorized Checklist for Environmental Protection Management of Projects under Construction, [2003] File No. 14, SEPA;
▪ Comments on Further Strengthening of Environmental Protection Management of Projects, HUANFA [2001] File No. 19, SEPA;
▪ Notice to Strengthen the Ecological Protection of Wetland, HUANRAN[1994] No.184, SEPA, March 1997;
▪ Notice to Strengthening EIA Management of Projects Financed with Loans from International Financing Institutions, HUANJIAN [1993] File No. 324, SEPA;
▪ Notice on the Strengthening of Water Saving and Water Pollution Prevention for Urban Water Supply by the State Council, GUOFA[2000] No.36, Nov. 2000;
▪ Notice to Issuance of Total Pollutant Effluent/Emission Amount Control Plans in the 10th Five-year Plan Period, YUFUFA [2001] File No. 556;
▪ Notice on the Strengthening of EIAs for Development Zones, HUANFA [2002] File No. 174, SEPA;
▪ Notice on the Further Standardization of Environmental Impact Assessment, HUANFA[2002] No.88, July 2002, SEPA;
▪ Checklist of Hazardous Wastes;
▪ Methods for Environmental Protection Acceptance of Projects at Completion, [2001] File No. 13, SEPA;
▪ Technical Directives for Environmental Impact Assessment, General (HJ/T 2.1-93), SEPA;
▪ Technical Directives for Environmental Impact Assessment, Air Environment (HJ/T 2.2-93), SEPA;
▪ Technical Directives for Environmental Impact Assessment, Surface Water Environment (HJ/T 2.3-93), SEPA;
▪ Technical Directives for Environmental Impact Assessment, Noise Environment (HJ/T 2.4-1995), SEPA;
▪ Technical Directives for Environmental Impact Assessment, Non-pollution, Ecological Impacts (HJ/T 19-1997), SEPA;
▪ Technical Directives for Environmental Impact Assessment, Water Conservancy and Hydropower Projects (HJ/T88-2003);
▪ Technical Directives for Environmental Risk Assessment for Construction Projects (HJ/T169-2004), SEPA;
▪ Decision of the State Council on Implementing Scientific Development Concept and Strengthening Environmental Protection, GUOFA[2005]No.39, Dec. 2005;
▪ Draft Regulation on Public Participation Methods for Environmental Impact Assessment; 18 March 2006, SEPA;
2. Local Regulations
There are also some local (Provincial & River Basin-wide) regulations applicable to the environmental impact assessment for BIEIP:
▪ Comments on the Implementation of “Decision of the State Council on Implementing Scientific Development Concept and Strengthening Environmental Protection” by Anhui Provincial Government;
▪ Environmental Rules for Urban Drinking Water Sources in Anhui Province
▪ Implementation Method for “Regulation of River Administration of the People’s Republic of China”, Oct. 1991;
▪ Rules on the Water Pollution Control of Huai River Basin in Anhui Province, Sep. 1993;
▪ Provisional Regulations on Water Pollution Control of Huai River Basin, No.183 order by the State Council, Aug.1995;
▪ Decision of Anhui Provincial Government on Practically Strengthening the Environmental Protection Work, WANZHENG (1997) No. 28, by Anhui Provincial Government;
▪ Rules on the Protection of Agricultural Ecological Environment in Anhui Province, Aug. 1999;
▪ Some Comments on Further Improving the Quality of Environmental Protection Assessment, HUANJIAN (2002) No.46, Anhui Provincial EPB, April 2002;
3. Environmental Quality Standards
All applicable standards are detailed in Appendix 2 of this report. Only references and general issues are provided in this section.
1. Surface Water Quality Classification and Standards
National standards for surface water quality are detailed in regulation GB3838-1983, successively revised in 1988 (GB3838-1988) and in 2002 (GB3838-2002). Surface water bodies are ranked into five quality classes according to their utilization purposes and subsequent protection objectives, as defined in a regional zone classification issued by the Municipal EPB:
▪ Class I is mainly applicable to spring water and to national nature reserves.
▪ Class II is mainly applicable to first class of protected areas for main sources of drinking water, for the protection areas of rare fish species, and for spawning grounds for fish and shrimp.
▪ Class III is mainly applicable to second class of protected areas for main sources of drinking water, and to protected areas for the common fish and for swimming areas.
▪ Class IV is mainly applicable to the water for industrial use and entertainment which has no direct contact with human body.
▪ Class V is mainly applicable to water bodies for agricultural use and landscape requirement.
Chemical criteria applicable to these 5 classes are detailed in Appendix 2.
2. Other Water Quality Standards
▪ Standard for drinking water is provided by regulation GJ3020-1993;
▪ Groundwater Quality Standards GB/T14848-1993.
3. Standards for Effluents from Industry and from WWTP
Key standards include:
▪ Comprehensive Standard for Wastewater Discharge (GB8978 – 1996);
▪ Quality of Sewage Water Discharged into Urban Sewers (CJ3082－1999);
▪ Standard for Pollutants Discharged from Urban and Town Sewage Treatment Plants (GB18918－2002);
▪ GB 4284-1984 is used as the control standard for pollutants in sludge for agricultural use.
4. Standards for Solid Waste Management
Key standards include:
▪ Domestic waste landfill pollution control standards (GB16889-1997);
▪ Domestic waste landfill environment monitoring technique standards (CJ/T3037-95);
▪ Urban Municipal Solid Waste Technical Standard 1989, Ministry of Construction;
▪ Ordinance of Urban Appearance and Environmental Sanitation Management, adopted by the State Council, August 1992;
▪ The Technical Policies for Municipal Solid Waste Treatment and Pollution Prevention, promulgated by MOC, MST and SEPA, May 29, 2000.
5. Other Regulations & Standards
Several other standards related to air quality and noise should apply either during the construction or operation phases of LMC-2, including:
▪ Environmental Air Quality Standard (GB3095—1996) with regulation GB3095-96 for fluoride and standard for maximum concentration of chlorine from Industry Designing Sanitary Standards (TJ36-1979).
▪ Standards for the Protection of Crops (GB9173—88) set the maximum concentration of some air pollutants in order to preserve the safe consumption of crops.
▪ Class II standard of Urban Area Environmental Noise Standards GB3096-1995, which applies to residential, commercial and industrial mixed area.
▪ Urban Area Environmental Vibration Standards GB10070-88, which apply to mixed area and commercial centre area, day 75dB(A), night 72dB(A).
▪ Comprehensive Emission Standards of Air Pollutant (GB16297-1996) for exhaust gas;
▪ Limiting Values for Construction Area (GB12523—90) for noise from construction activities.
4. World Bank Safeguards
For any project processed with the participation of an International Funding Agency, in addition to the fulfillment of national requirements, the proponent must also satisfy the requirements of the funding organization. The World Bank requires environmental assessment (EA) of projects proposed for financing to ensure that they are designed in an environmentally sound and sustainable manner, and that the environmental and social policies of the WB are satisfied. These requirements are detailed in the following reference safeguards:
Environmental Issues Safeguards:
▪ Operational Policy 4.01, Environmental Assessment, January 1999 (including Annex A, B and C, dated January 1999)
▪ Operational Policy 4.04, Natural Habitats, June 2001
▪ Operational Policy 4.36, Forests, September 1993 (including Annex A, dated March 1993)
▪ Operational policy 4.09, Pest Management, December 1998
▪ Operational Policy 4.37, Safety of Dams, October 2001
Social & Political Issues Safeguards
▪ Operational Policy 4.12, Involuntary Resettlement, December 2001
▪ Operational Directive 4.20, Indigenous Peoples, September 1991
▪ Operational Policy 4.11, Cultural Property, August 1999
▪ Operational Policy 7.50, Projects on International Waterways, June 2001
▪ Operational Policy 7.60, Projects in Disputed Areas, June 2001
▪ Bank Policy 15.50, related to Information Disclosure
For the present BIEIP project, the following safeguards will be triggered:
▪ Operational Policy 4.01, Environmental Assessment
▪ Operational Policy 4.12, Involuntary Resettlement,
▪ Bank Policy 15.50, related to Information Disclosure.
3. Environmental Policy Framework
1. Main Environmental Issues and Strategies in Huai River Basin
1. Water Pollution
The water pollution of Huai River Basin started in the late 1970’s and exacerbated in 1980’s. The large-scale water pollution accidents took place more and more frequently in Huai River Basin in recent decades, respectively in 1989, 1992, 1994 and 1995.Thereafter, relevant pollution control strategies and policies have been successively issued by the State Council and local governments to alleviate the conditions, such as the “Provisional Regulations on Water Pollution Control of Huai River Basin” (Aug. 8th 1995, the first river basin water pollution control regulation in China), the “Water Pollution Control Plan and the Ninth-five-year plan of Huai River Basin” (Jun. 29th 1996) and the “Tenth-five-year Plan for Water Pollution Control of Huai River Basin”. The water pollution targets for the whole Huai River Basin are divided into two phases: the first is to make the discharge from all the industrial polluters in the basin up to standard and to reduce the COD discharge from 1.5million tons of 1993 to 890,000 tons by the end of 1997; and the second is to construct 52 municipal WWTPs for the whole basin and to further reduce the COD discharge to 368,000 tons so as to improve the water quality of the main stream of Huai River, upstream of Yi River and key drinking water sources up to the Class III standard and that of other rivers up to the Class IV standard.
With the great efforts put in Huai River Basin (including the compulsory shutdown of hundreds of heavily polluting small industries and the administration over the key industrial polluters in the basin), significant accomplishments have been made over the last 12 years. Especially during the “Ninth-five-year” period (1996-2000), the key pollutant, COD discharge, has dropped from the 1.5million tons of 1995 to 1.167million tons of 1998 and 0.94million tons of 2000 (respectively by 22.2% and 36.9%); in 2000, the water quality compliant rate at the provincial boundary has increased by 8.8% compared with the 1995 level; and there is significant decrease of major water pollution accidents in the basin.
However, after 2001, with the completion of the first phase Huai River pollution control action, the pollutant discharge into the river increased again in recent years. In 2003, the COD discharged into the river was up to 1.23million tons, 30% beyond the 2000 level. The water quality compliant rate at the provincial boundary showed a gradually decreasing trend, from the 29.1% of 2000 to the 25.8% of 2001 and the 24.6% of 2002. Even with the dilution of the biggest flood in 50 years, the overall water quality compliant rate of 2003 was only 38.4%. 82 of the key controlled cross sections are classified as Class V or worse than Class V, and about 82% of the cross sections haven’t reached the predefined target.
The existing problems mainly include:
1. The incompliant pollution discharge by key industrial polluters remains the major cause for the pollution exacerbation. By the end of 2003, only 51.7% of the industrial outfalls could meet the discharge requirements. And the industrial pollution contributes to about 70% of the total COD discharge in the river basin.
2. The construction of many planned municipal WWTPs is behind schedule, and the normal operation of constructed WWTPs could not be ensured.
3. The agricultural non-point pollution hasn’t been effectively controlled, so that the NH3-N concentration is far beyond the standard requirement.
4. The ecological water use has been seriously taken into consideration in the exploitation and allocation of water resource. Therefore, during the dry season, some rivers are dried up, and the self-purification capacity of the water bodies will be affected.
In view of the above mentioned problems, in Oct. 2005, SEPA has issued the new water pollution control targets for Huai River Basin with the focus on the control and treatment of industrial and domestic wastewater from the urban area. The targets are further divided into three phases: a) By the end of 2005, the completion and operation rate of key pollution control projects should be no lower than 60%; b) By the end of 2007, 90% of the key pollution control projects should be put into operation, and the treatment rate of domestic wastewater from the municipalities in Shandong, Jiangsu Provinces, etc. should at least reach 70%; c) By the end of 2010, the water quality of the main stream of Huai River should reach the Class III target, and the water quality of the major tributaries of Huai River should meet the Class IV or Class V requirements.
2. Water Scarcity
Due to the spatio-temporal imbalance of water resource distribution, the Huai River Basin is an area facing the problem of severe water shortage with the per-capita water resource amount of 488m3, which is lower than 1/4 of the nationally average level.
According to the “Water Resource Development ’Ninth-five-year’ plan for the Huai River Plan”, with the construction of proposed water supply projects, by 2000 for the normal year, the water supply of the Huai River Basin is basically sufficient; However, for the moderately dry year, there is still a gap of 8.38billion m3 water demand in the Huai River Basin, which means 10% water deficiency rate; and for the very dry year, the gap of water demand would be 24.27billion m3, which means 26% water demand deficiency. In 95% of the very dry years, the guarantee rate of agricultural irrigation water supply would not be reached. In such years, the adopted strategies are to minimize the agricultural water use, to save other water uses, and to properly increase he groundwater use for the area north of the Huai River (Wangjiaba~Bengbu) and the area west of the Nansi Lake.
In addition to the optimization of water resource management in the basin, the cross-basin water transfer is a possible solution to mitigate the water supply shortage of the Huai River Basin in view of its vicinity to the Yellow River and the Yangtze River. By 2010, it is expected that the water shortage of the Huai River Basin would still be of water resource type. However, the contruction of the eastern and middle sections of “South-north water transfer project” and the cross-basin water transfer project of Anhui Province will significantly alleviate the water shortage in Huai River Basin, so that in the normal year, the water supply will be generally sufficient. At the same time, the area north of the Huai River upstream of Wangjiaba, the area between Wangjiaba and Bengbu, and the eastern area of Nansi Lake will remain a water deficiency rate beyond 20%. For these areas, it is proposed to strictly control the development of the industries with high water consumption, promote the water conservancy, and properly increase the cross-basin water transfer and the utilization of sea water.
2. Bengbu Municipal Environmental Quality Objectives
1. Bengbu Municipal Urban Short-term Construction Plan
This short-term plan is prepared for the Bengbu urban area, the Tushan Mount Scenic Area and part of the Mohekou Industrial Park, covering a total area of 680km2 for the horizon of 2010.
1. General Objectives
The following objectives are expected to be achieved by 2010:
• Increase 140km new roads, and the per-capita road area reaches 10.2m2;
• The per-capita public greening area is about 7m2, and the greening coverage rate of the constructed area reaches 30.3%;
• The urban water supply capacity is up to 560000m3/d, the per-capita water consumption is 220l/d, and the coverage rate of water supply service is beyond 99%;
• The urban centralized wastewater treatment capacity reaches 275000m3/d, the centralized wastewater treatment rate is 73.3% and the harmless treatment rate of solid waste reaches 90%;
• The water quality compliant rate of rivers and lakes is over 70%, and the water quality compliant rate of urban water supply source is beyond 95%;
• The flood control capability of the North Huai River dyke and the urban area is up to the one in 100 years standard.
2. Relocation of Industries and Construction of Industrial Parks
In order to adapt to the overall development master plan, it is planned to gradually move some existing polluting industries from the old urban area and the suburban area into the new industrial parks.
• Movement and relocation of industries
The existing industries planned to be moved and relocated include Anhui Global Pharmaceutical Company, People Printing Plant, Bengbu Tiancheng Co. Ltd., the cement plant, the cement product plant, Chemical Mechanical Manufacture Company, Longhua Machines Plant, the glass plant, Xinfeng Flour Plant, the electronic optical material plant, Bayi Chemical Co. Ltd., Hailuo Cement Company, Xinmin Glass Co. Ltd., etc.
• Newly increased industrial land use
The newly increased industrial parks mainly include the West City Industrial Park & the High Tech Zone (546ha, mainly for the industries of automobile parts, electronic information, biochemical and new materials), Bengbu Industrial Park in Huaishang District (451ha, mainly for the industries of mechanical manufacture, automobile fittings, textile & garments, and food processing), the Longzihu Glass Industrial Park & the Changhuai Industrial Park (158ha, mainly for glass and glass further processing, cement industry and metallurgy industry), and the Jiangqiao Logistics Processing Zone in Bengshan District and Xincheng District (115ha, mainly for electronic information and urban industries).
3. Environmental Protection Plan
• Water— By 2010, the water quality of the main Huai River should be compliant with the standard requirements above Class III, and that of the tributaries should be compliant with the standard requirements above Class IV. The treatment rate of industrial wastewater should be 100% and the treatment rate of domestic wastewater should reach 73%;
• Air— The air pollution index for the urban area should be controlled within the Class II ambient air standard, the yearly average of TSP in the air should be no more than 0.2mg/m3, the yearly average of SO2 concentration should be within 0.02mg/m3, and the yearly average of NO2 should be lower than 0.025mg/m3. The treatment rate of industrial waste gas should be 100%, and the treatment rate of vehicle exhaust gas should be 80%;
• Noise— The ambient noise of the urban area should be controlled within 56dB, the noise of the urban traffic trunks should be within 68dB, and the compliant rate of the ambient noise in the urban area should reach 50%;
• Solid waste— Almost all the solid waste should be collected and sorted, the harmless treatment rate of solid waste should reach 90%; The night soil treatment should be integrated into the urban wastewater treatment system. 100% of the urban domestic solid waste should be containerized for collection. The treatment of hazardous waste should be strengthened, and Zero-discharge of hazardous waste should be ensured.
2. Bengbu Municipal Wastewater & Storm Drainage Master Plan
As an old industrial city, the drainage system of Bengbu Municipality is constructed and connected by catchment and by phase.
1. Bengbu Municipal Wastewater Drainage Master Plan
According to the wastewater drainage master plan, it is projected that the wastewater generation of Bengbu Municipality will respectively reach 494,100m3/d and 728,300m3/d by 2010 and 2020.
Table 2: Bengbu Municipality Estimated Wastewater Amount（10,000 m3/d）
| Item |Current Situation |2010 |2020 |
| |South of Huai|North of Huai River |Total |South of Huai |North of Huai |Total |
| |River | | |River |River | |
|Xijiagou Wastewater|Mixture of |East of Heihushan Rd.; |2025 |Xijiagou WWTP |Phase 1: |Xijiagou Canal|
|Catchment |Combined & |west of Laohu | |(No.1 WWTP, in |100,000; |and then Huai |
| |Separate |Mountain-Hangxing | |operation) |Phase 2: |River |
| |systems |Road-Fenyong | | |100,000 | |
| | |Street-Shengping Street; | | | | |
| | |north of Yanshan Rd.; | | | | |
| | |south of Huai River | | | | |
|Yangtaizi |Mixture of |East of Laohu |4251 |Yangtaizi WWTP |Phase 1: |Baojiagou |
|Wastewater |Combined & |Mount-Hangxing Rd-Fenyong| |(No.2 WWTP, in |100,000; |Canal and then|
|Catchment |Separate |St-Shengping St; west of | |design) |Phase 2: |Huai River |
| |systems |Longzi Lake, South of | | |100,000 | |
| | |Huai River and North of | | | | |
| | |No.5 Huochang Rd | | | | |
| | |East of Longzi Lake, west| | | | |
| | |of Zhuizi Mount | | | | |
|South City |Separate |Baligou Subcatchment, |2482 |South City WWTP |155000 |Huai River |
|Wastewater |system |West Yanshan | |(No.4 WWTP, under | | |
|Catchment | |Subcatchment, and East | |planning, to be | | |
| | |Yanshan Subcatchment | |completed by 2012)| | |
|Huaishang |Separate |The whole Huaishang |1950 |Huaishang WWTP |Phase 1: |Huai River |
|Wastewater |system |District including | |(No.3 WWTP, under |25000; | |
|Catchment | |Xiaobengbu area, | |construction, |Phase 2: | |
| | |Wuxiaojie area, the | |Phase 1 to be |50000; | |
| | |middle area and North | |completed by |Phase 3: 80000| |
| | |River Industrial Park | |Jun.2008) | | |
2. Bengbu Municipal Storm Drainage Master Plan
Bengbu urban area is divided into six storm drainage areas according to the receiving water body and the drainage approach, which include the South River Pumping-drainage Area, Longzi Lake Drainage Area, Xijiagou Drainage Area, Baligou Drainage Area, Baojiagou Drainage Area and North River Drainage Area. These drainage areas are further divided into 27 drainage systems in urban planning area according to the topographic characters. The total area of storm water catchments included in the urban drainage system is up to 175km2, and the accumulated design flow is 775m3/s. The storm water not included in the urban drainage system is discharged along the existing ditches and canals. See Tab. 4 for details.
Table 4: Planning of Stormwater Drainage Catchments in Bengbu Urban Area
|No. |Name of |Catchment Area (km2) |Accumulated Design |Drainage Approach|Receiving Water Body|
| |Drainage Area | |Flow（m3/s） | | |
| | |Total Area |Planned Area | | | |
|1 |South River Pumpingl- |20.9 |20.9 |119.12 |Pumped in the |Huai River, Xijiagou|
| |drainage Area | | | |flooding season |Canal |
|2 |Longzi Lake Drainage Area|140 |48.76 |256.5 |Free Flow |Longzi Lake |
|3 |Xijiagou Drainage Area |49.6 |24.49 |132.5 |Free Flow |Xijiagou Canal |
|4 |Baligou Drainage Area |23 |11.24 |81.6 |Free Flow |Baligou Canal |
|5 |Baojiagou Drainage Area |35.4 |12.26 |54.6 |Free Flow |Baojiagou Ditch |
|6 |North River Drainage Area|45.7 |25.74 |130.4 |Pumped in the |Huai River |
| | | | | |flooding season | |
3. Bengbu Municipal “Eleventh-five-year” Environmental Protection Objectives
The Bengbu Eleventh-five-year Environmental Protection Master Plan is prepared for the time horizon of 2010. The whole Bengbu Municipality is covered by this plan. The major task of the “Eleventh five-year” environmental protection is to control the deterioration of water environment and to further reduce the total pollutant discharge of industrial wastewater, domestic wastewater and agricultural non-point pollution. The detailed targets are summarized as follows:
• Water
- Ensure the up-to-standard water quality of drinking water sources: Strengthen the construction of drinking water source conservation areas, such as the area for the No.3 WTP, and improve the water quality compliant rate of the centralized drinking water sources above 95%;
- Accelerate the construction of wastewater treatment facilities – By 2010, the newly increased wastewater treatment capacity should reach 290,000m3/d, which will made the overall treatment capacity up to 545,000m3/d and the treatment rate up to 70%.The sewage from the new planned area should be collected and transferred to the WWTP. And the treated effluent of the WWTPs should comply with the Class IA standard before discharging into the Class III surface water bodies (according to the classification of GB3838-2002). The water quality of the main Huai River should at least meet the Class III standard while the primary tributaries should at least meet the Class IV standard;
- Strengthen the control of industrial polluters—Implement strict inspection and administration regulation over the polluting industries, such as chemical, brewery, texitile & dyeing, tannery, plating, paper-making and food processing; Implement the overall on-line monitoring system for the new urban WWTPs, solid waste incinerators and key industrial polluters to effectively prevent the secrete discharge; Implement the mass load control system for pollutant discharge, the pollutant discharge permission system and the reduction plan for the total discharge of major pollutants;
- Control the pollution from the poultry and stockbreeding industries;
- Comprehensively control the agricultural non-point pollution by strictly control the use of pesticides and fertilizers.
• Air
- Optimize the energy structure and develop clean energy;
- Strengthen the treatment of industrial pollution to realize the up-to-standard emission of polluting sources;
- Strengthen the administration over the exhaust gas emission of vehicles;
- Focus on the control over the domestic polluting sources and the flying dust from traffic and construction activities.
• Noise
- Control the regional environmental noise to improve the coverage rate of noise up-to-standard area up to 60% as soon as possible;
- Control the traffic noise—Control the average value of the noise from the traffic trunks within 70dB;
- Control the noise of construction activities;
- Take proper measure to cope with the fixed noise sources.
• Solid waste
- Accelerate the construction of solid waste treatment & disposal projects—six new solid waste treatment plants (sites) and one medical waste disposal centre are planned for the horizon of 2010. By 2010, it is expected that the harmless treatment rate of the domestic solid waste in Bengbu Municipality will reach 60%, and the centralized treatment rate of hazardous waste will reach 100%;
- Strengthen the comprehensive recycling and utilization of solid waste—By 2010, the comprehensive utilization rate of industrial solid waste should reach 85%;
- Strengthen the management of hazardous waste— A 5t/d medical waste disposal centre will be constructed. By 2010, there should be no discharge of hazardous waste;
- Complete the collection and transportation system for construction waste and solid waste from water bodies.
• Ecological Environment
- Enhance the ecological construction—By 2010, improve the forest coverage rate in the municipality to 18% and the greening rate of constructed area to 40%, and increase the per-capita public greening area in the urban area up to 9m2;
- Well protect the ecological functional zones—By 2010, the area of land natural conservation zones reaches 12% of the total area;
- Implement compulsory protection for resource development.
• Circular Economy
- Construct ecological industrial parks— Focus on the construction of 9 ecological industrial parks. By 2007 the small- and middle-scale polluting industries should be relocated, and by 2010 all the polluting industries should be moved into the industrial parks;
- Develop the ecological agricultural parks;
- Construct the resource circular economy by establishing the recycling and reuse system for urban domestic solid waste, special used materials and urban treated wastewater together with the regional industrial hazardous waste incineration centre, the used batteries and fluorescent lamp tube disposal centre, the medical waste disposal centre, etc;
In order to achieve all the above targets by 2010, totally 80 environmental protection projects have also been identified in the master plan, such as:
- Drinking water source pollution control project for three counties;
- Wetland ecological environmental construction project for the groundwater conservation area in Huaishang District;
- Water quality protection project for Qian River as strategic urban water supply source;
- Longzi Lake integrated rehabilitation project
- Zhangongshan Pond integrated rehabilitation project
- Wastewater treatment projects for some key polluter of Bengbu Municipality;
- Relocation of some key polluter of Bengbu;
- Wastewater treatment plants for Bengbu urban area and three counties;
- Clean energy project;
- Waste gas treatment for some key polluters of Bengbu Municipality;
- Bengbu domestic sanitary solid waste landfill site (Phase I & II);
- Solid waste disposal site for Huaishang District and three counties
- Medical solid waste disposal centre of Bengbu Municipality;
- Sludge disposal project of Bengbu wastewater treatment plants;
- Flood control and ecological environment improvement project for the southern and northern banks of Huai River;
- Environmental monitoring capability building;
- Construction of Bengbu Environmental Information System; etc.
- Many of these projects are being implemented with the government investment. And some of them will be included in BIEIP using the World Bank financing, which include:
- Longzi Lake integrated rehabilitation project;
- Flood control and ecological environment improvement project for the northern banks of Huai River;
- Environmental monitoring capability building; etc.
4. Bengbu Municipality Eleventh-five-year Plan for Water Resource Development
1. General Objectives
• Complete the flood control & storm drainage system --The treatment of such primary mainstream & tributary as Huai river, Guo river, Beifei river & Xie river should be enhance to improve the integrated flood control & storm drainage ability. Meanwhile, to improve the storm drainage capacity and reinforce the flood control & anti- drought emergency system, flood control pump station in each depression of the lager five tributaries as Tianhe,Longzi river, Qian river ,Xie river & downsream Beifei River should be discussed to build, while the flood control pump station improvement projects of Benifei River dike ,Jingshan Lake & Mohekou depression as well as storm drainage ditch treatment projects also need to be implemented
• Establish the secure and reliable water supply security system -----Focusing on the current water resources and making full use of the potential of water saving and floods to ensure urban water supply safety, then carrying on the construction to protect urban drink water sources like Tianhe and Qianhe. Finally, the water resource distribution ability should also be enhance to improve the rural drink water quality by carrying on drink water safety project in rural area.
• Establish sustainable and effective water environmental protection system ------Sticking to combining the engineering measures with non-engineering measures to tap, utilize and protect water resources. Also the soil and water conservation should be activated and the wet land should be taped and protected intentionally, reasonably and step by step.
• Establish stable and sound water resource development system in rural area ------To guarantee the agricultural development, stable society and income rise in rural area, the farmland and water resources construction should be continuously strengthened and the drainage situation should be improved.
• Establish normalized and effective water management and service system ------The water information collection system and decision-making assistant system should be set up to further improve the emergency schema for flood control and anti-drought.
2. Targets of Water Resource Development
• Flood control and storm drainage ------Up to the year 2010, the flood control standard for protection area like Huaibei dike and Bengbu urban area will reach 1-in-100 year flood while the flood control standard of major tributaries like Hui river. Xie river, Qian river, Tuo river, downstream Beifei river etc will almost rise to 1-in-20 year flood thus the flood control standard for Bengbu city, Huaiyuan county, Guzhen county and Wuhe county will fundamentally meet the national requirement. Besides the flood disaster warning system ought to be established and The depression storm drainage projects in key region should be built based on 1-in-10 flood to fully upClass the drainage capacity.
• Drink water safety----The water sources protection project in urban area will be radically finished in 2010.
• Country water resources ----During the “the eleventh 5-year plan”, the irrigative land equipping, water-saving rehabilitation and farming land storm drainage system construction will be activated and the surface and ground water will be attributed scientifically and rationally. By 2010, the new drainage area will be 500,000 mu while the improved will be 500,000mu.The standard farming land reclaim will attain to 800,000mu with common storm drainage standard of 1 in 5 ~10 flood. To the year 2020, The farming land reclaim will arrive at 2 million mu with a drainage standard of 1-in-10 year flood.
• Water resources protection and ecological treatment ------To the year 2010, the water quality up-to-standard rate for the primary rivers and lakes will get to above 70% and the water sources for urban area will go up to above 95%.The treatment projects for Longzi lake and Xijiagou should be launched to ensure the water quality of Longzi lake and Zhanggongshan pond basically meet the water requirement for landscape. To the year 2020, the water quality up-to-standard rate for the primary rivers and lakes will reach above 90% and the water sources for urban area will go to above 98%.
5. Construction Plan of Bengbu Ecological City
In order to construct Bengbu Municipality into a ecological city, the following targets have been developed respectively of the short term (2010), intermediate term (2015) and long term (2020) horizons.
• Water
- Short term: By 2010, the up-to-standard rate in water functional region is 75%,industrial wastewater treatment rate is 98%，sewage treatment rate is 70%。
- Intermediate term: By 2015, the up-to-standard rate in water functional region is 90%,industrial wastewater treatment rate is 99%，sewage treatment rate is 80%。
- Long term: By 2020, the up-to-standard rate in water functional region is 100%,industrial wastewater treatment rate is 100%，sewage treatment rate is 90%。
• Air
- Short term: By 2010, the urban air environment should be maintained at the same level in 2005 and all the functional regions meet the air standard.
- Intermediate term: By 2015, the urban air environment quality can be expected at the favorable level with an industrial exhaust treatment rate of 100%.
- Long term: By 2020, the urban air environment quality can be expected to increase base on the favorable level with an industrial exhaust treatment rate of 100%.
• Solid waste
- Short term: By 2010, the integrated utilization rate of urban industrial solid waste will be up to 85% compared with domestic waste harmless dispose of 100%, and utilization of more than 10%.
- Intermediate term: By 2015, the integrated utilization rate of urban industrial solid waste will be up to 100% compared with domestic waste harmless dispose of 100%, classified collection of more than 30% and utilization of more than 15%.
- Long term: By 2020, the integrated utilization rate of urban industrial solid waste will be up to 100% compared with domestic waste harmless dispose of 100%, classified collection of more than 60% and utilization of more than 20%.
3. Project Conformity with the Master Plans
The content of the Bengbu integrated environmental treatment project financed by the World Bank loan is determined in line with the overall development plan of Bengbu city, water conservancy development plan and the environmental protection goal in the Eleventh Five-Year Plan period. The conformity for the project contents with the master plans of Bengbu Municipality is shown in the following table.
Table 5: Conformity of the Proposed Projects with Existing Master Plans
|No. |Name of |Planned Objectives |Contents of Proposed Projects|Related Sub-projects |
| |Plans | | | |
|1 |Bengbu Urban |1）Urban construction goal — by |Road building in the economic|Sub-project 3 — Urban |
| |Short-term |2010, 140km of new road will be built|development zone |environmental infrastructure |
| |Construction |with per-capita road area of 10.2m2 |Construction of riverside |improvment |
| |Plan | |road and its branch road in |Sub-project 5 — Flood management |
| | | |Huaishang District |and storm drainage and |
| | | |Road building in Chengguan |infrastructure improvement in |
| | | |town of Huaiyuan county |Huaishang district |
| | | | |Sub-project 7 — Integrated |
| | | | |environmental treatment in |
| | | | |Huaiyuan county |
| | |2）Safeguard goal of water resources |Construction of Tianhe storm |Sub-project 1 — Tianhe flood |
| | |— to set up the water security |drainage station |management and storm drainage |
| | |system, increase the bearing capacity|Desilting works of Longzi |Sub-project 2 — Longzi Lake flood |
| | |of water environment and improve |Lake |management and storm drainage and |
| | |storm drainage of Tianhe River and | |environmental improvement |
| | |water environment of Longzi Lake | | |
| | |3) Key environmental improvement area|Xijiagou desilting and |Sub-project 4 — Xijiagou and |
| | |— Xijiagou |revetment greening project |Baligou environmental treatment |
| | |— Zhanggongshan Pond—Yinghe | | |
| | |neighboring area | | |
| | |4）Industry relocation and park |Construction of |Sub-project 8 — Integrated |
| | |construction — new industrial land |infrastructure, sewage pipe |environmental treatment in Mohekou|
| | |and newly-built industrial |network and treatment plant |of Wuhe county |
| | |park；construction of industrial |in Mohekou Industry Park | |
| | |park and district and centralized | | |
| | |sewage treatment | | |
|2 |11th Five-year |1）Urban flood prevention — |Wuxiaojie storm drainage |Sub-project 3 — Urban |
| |Plan for Water |construction of storm drainage |pumping station |environmental infrastructure |
| |Conservancy |pumping station (reconstruction of |Xinchuantang storm drainage |improvment |
| |Development |Xinchuantang, Nanshijia and Wuxiaojie|pumping station |Sub-project 5 — Flood management |
| | |pumping stations） |Nanshijia storm drainage |and storm drainage & |
| | | |pumping station |infrastructure improvement in |
| | | | |Huaishang district |
| | |2）Internal ditch treatment project |Desilting of Baligou |Sub-project 2 — Longzi Lake flood |
| | |for Baligou, Xijiagou, Longzi Lake |Desilting of Xijiagou |management and storm drainage and |
| | |and lower reaches of Beifei river |Desilting of Longzi Lake |environmental improvement |
| | | |Dredging of Sanpu canal |Sub-project 4 — Xijiagou and |
| | | | |Baligou environmental treatment |
| | | | |Sub-project 8 — Integrated |
| | | | |environmental treatment in Mohekou|
| | | | |of Wuhe county |
| | |3）Promoting urban flood management |Dredging of ditches and |Sub-project 6 — Integrated |
| | |project construction in Huaiyuan, |canals and construction of |environmental treatment in |
| | |Guzhe and Wuhe counties |storm drainage pumping |Guzhen county |
| | | |station in Guzhen |Sub-project 7 — Integrated |
| | | |Dredging of flood ditches |environmental treatment in |
| | | |and construction of storm |Huaiyuan county |
| | | |drainage pumping station in |Sub-project 8 — Integrated |
| | | |Huaiyuan |environmental treatment in Mohekou|
| | | |Construction of storm |of Wuhe county |
| | | |drainage pumping station in | |
| | | |Sanpu of Wuhe county | |
| | |4）Conservation of water resources |Implementation of Longzi Lake|Sub-project 2 — Longzi Lake flood |
| | |and water environmental treatment |and Xijiagou integrated |management and storm drainage and |
| | | |treatment project and |environmental improvement |
| | | |improvement of urban water |Sub-project 4 — Xijiagou and |
| | | |environment |Baligou environmental treatment |
| | |5）Key water conservancy project in |Tianhe storm drainage station|Sub-project 1 — Tianhe flood |
| | |the 11th Five-year Plan period — |Longzihu storm drainage |management and storm drainage |
| | |Construction of Tianhe and Longzihe |station |Sub-project 2 — Longzi Lake flood |
| | |storm drainage stations to upClass | |management and storm drainage and |
| | |the flood management standard in | |environmental improvement |
| | |Tianhe depression to once in 20 years| | |
| | |and the storm drainage standard to | | |
| | |once in ten years. , | | |
|3 |Environmental |To speed up construction of sewage |Urban sewage collection pipe |Sub-project 3 — Urban |
| |Protection goal|treatment facilities — fresh sewage |network project |environmental infrastructure |
| |for Bengbu city|discharged in the planned area should|Construction of sewage |improvment |
| |in the 11th |be collected and directed to the |closure pipelines in each |Sub-project 6 — Integrated |
| |Five-year Plan |sewage treatment plant. |part |environmental treatment in |
| |period | | |Guzhen county |
| | |By 2010, 70% of domestic sewage in |Sewage treatment plant |Sub-project 8 — Integrated |
| | |Bengbu will be brought under |project in Mohekou Industry |environmental treatment in Mohekou|
| | |centralized treatmenet；The discharge|Park |of Wuhe county |
| | |from the sewage treatment plant | | |
| | |should reach the standard for A, | | |
| | |Class I before being dischared into | | |
| | |the functional surface water body of | | |
| | |Class III. | | |
| | |Intensify control over industrial |Construction of environmental|Sub-project 8 — Integrated |
| | |pollution source and build up |infrastructure in Mohekou |environmental treatment in Mohekou|
| | |eco-industrial park — advance the |Industry Park |of Wuhe county |
| | |construction of specialized | | |
| | |environmental protection park in the | | |
| | |pattern of industry park and district| | |
| | |construction, centralized sewage | | |
| | |treatment and control of the source | | |
| | |in combination with industrial | | |
| | |restructuring and all the enterprises| | |
| | |are required to settle in the Park by| | |
| | |2010. | | |
| | |Devote more efforts to |Longzihu slope greening |Sub-project 2 — Longzi Lake flood |
| | |eco-improvement — build more |project |management and storm drainage and |
| | |riverside greening belts and forge a |Tree and grass planting |environmental improvement |
| | |urban green passageway |around the riverside road |Sub-project 5 — Flood management |
| | | |Grass revetment on the left |and storm drainage & |
| | | |dyke of Hui River |infrastructure improvement in |
| | | | |Huaishang district |
| | | | |Sub-project 6 — Integrated |
| | | | |environmental treatment in |
| | | | |Guzhen county |
4. Environmental Baseline Situation
1. Topography
The majority of Bengbu Municipality is occupied by plains with relatively centralized hills and many interlaced rivers, canals and lakes. The area to the north of Huai River is mostly plain, accounting for about 86% of the whole municipality. To the south of Huai River, there is mainly incontinuous hilly area with some lakes, which accounts for about 9% of the whole municipality. And the water surface accounts for 8% of the whole municipality, including the rivers like Huai River, Guo River, Huaihongxin River and the lakes like Sifang Lake, Tuo Lake and Xiangjian Lake.
2. Hydrology
Bengbu Municipality is a part of Huai River. There are many rivers and lakes distributed in the city (as shown in Fig. 8), which respectively belong to Huai River water system and Huaihongxin River water system as presented below.
Table 6: Main Characteristics of Water Systems in Bengbu
|Name of Water |Catchment Area |Names of Key Rivers |Names of Key Lakes |Name of Key Low-lying |
|System |(km2) | | |Areas |
|Main stream of |2120 |Huai River; |Qianhewa Lake, Tianhewa |Tangyu Lake, Jingshan |
|Huai River | |To the left of Huai River: Nihei River, |Lake and Longzi Lake |Lake, Kongjin Lake, |
| | |Qianhuaixin River, Qian River, Guo River;| |Fangqiu Lake, Xiangfu |
| | |To the right of Huai River: Dushan River,| |Section, Linbei Section,|
| | |Tianhe, Baligou Canal, Xijiagou Canal and| |Sanchong Lake, Sanpu |
| | |Longzi River | |Lake, Huayuan Lake |
|Huaihongxin River|3832 |Huaihongxin River, Middle-stream and |Sifang Lake, Xiehewa |Huajiagoul, Liancheng, |
| | |downstreatm of Beifei River, Xie River, |Lake, Xiangjian Lake, |Jiuwan, Heinigou, |
| | |Baohui River and Tuo River |Zhangjia Lake, Tuo Lake,|Malagou, Longtan Lake |
| | | |Tianjing Lake, Diaoyutai| |
| | | |Lake, Sancha River | |
[pic]
Figure 8: Aquatic Systems in Bengbu Municipality
3. The average runoff depth of Bengbu Municipality is 246.4mm, and the corresponding runoff quantity is 1.5billion m3. The average flow of Huai River is 841m3/s with the annual passing runoff quantity of 26.5billion m3. There are more than 60 controllable rivers and lakes with the water surface around 400km2 and the water storage of 769million m3. The section of Huai River within Bengbu Municipality is 147km with the width between 600-800m and the bottom elevation around 8m (Yellow River elevation system). Bengbu section is in the lower section of the middle-stream Huai River, which is featured by its smallest riverbed elevation difference, only 5% of the total difference of the river. However, 90% of the riverbed elevation difference is concentrated in the upper stream section. The significant difference has resulted in the frequent floods in the middle stream due to large amounts of flood discharge from upstream during the flooding season every year.
The catchment area controlled by the Bengbu Section of Huai River main stream (Upstream of Bengbu Gate) is 121,000km2, accounting for 64.7% of the total catchment of Huai River. The measurement by Bengbu Hydrology Station shows that the average annual flow here is 26.7billion m3 with the maximum of 63.7billion m3 (in the year of 1954) and the minimum of 2.7billion m3 (in 1978). The highest flood level of typical flooding years happened in 1954, which is 22.18m, while the lowest flood level of Huai River Bengbu Section is 10.36m (December 1966). On a yearly basis, the highest water level normally happens in July, which is 15.52m by average; and the lowest water level happens in January, which is 12.77m by average.
With the completion of the Bengbu Gate, the hydrological characteristics upstream and downstream of the gate have dramatically changed. The upstream water level is normally between 17-18m, while the normal downstream water level is around 13m, which means there is about 4-5m water head difference. Therefore, the regulation of Bengbu Gate has made the flow of Huai River in this section change from smooth flow to stagnant flow. The upstream stagnant section becomes the surface water recharging the groundwater throughout the year, while the downstream section is recharged by the groundwater.
4. Geology
Bengbu is in the North China Strata Region, where Lower Proterozoic Wuhe Group Xigu Stratum and Neo-archean Quaternary are growing. Tectonic unit belongs to Sino-Korean Paroplatforms, its scale includes Huai River basin and Jianghuai Area, it’s only an angle at south-east of platform, belonging to Class Ⅰ tectonic unit, which is divided into several secondary units, Bengbu is in the Class Ⅲ unit – above Bengbu platform arch. The stratum is the Huai River division of North China Strata Region, Middle and Late Paleozoic Stratums are missing. Strata before Early Paleozoic are mainly composed by the metamophic rock and marine strata, Strata of Mesozoic Era and Cenozoic Era are mainly composed by terrestrial strata and volcanic rock.
5. Climate
Bengbu is at the northern edge of North Subtropical Zone, in the humid region of tropical monsson climate, the main characteristics are long winter and summer, short spring and autumn, the rainfall is concentrated in the rain season, illumination is abundant, quantity of heat is rich, the frostless period is long. In winter, controlled by Siberian High Pressure, the north-west wind is frequent, the climate is dry and less rainfall; in summer, influenced by Pacific Subtropical High Pressure, the south-east wind is frequent, the climate is hot and humid, the rainfall is concentrated.
Since the confrontation of inter-annual cold and warm air mass activities is frequent, the rainfall is concentrated, the annual average precipitation is 905.4mm, and the average frostless period is 217 days. The leading wind direction in Bengbu is east wind, the first season is north-east wind, the second season is east wind, the third season and the forth season are east-north wind. The calm wind frequency in the whole year is 6%, the multi-annual average wind speed is 2.5m/s, and that in flood season from June to September is 2.3m/s, the max average wind speed is in June, which is 3.0m/s, the min average wind speed is in January and August, which is 2.1m/s.
6. Soil and vegetation
The types of soil are various in the whole city, the classification uses the “5 categories taxonomy”: soil order, soil great group, soil subgroup, soil genus and soil species. In the whole city, there are 5 soil orders, 8 soil great groups, 13 soil subgroups, 31 soil genuses and 62 soil species. Bengbu is in the transition area between North Subtropical Zone and South Warm Temperate Zone, across two bioclimatic zones. The topography and geomorphology is complex, so the soil types and distribution are transitional. There is no high mountainous area in the city, so there is no evident rule of vertical spectrum mountainous soil distribution. Although the transitional soil characteristic isn’t evident, the various soil distribution characteristics under corresponding topography and field quality conditions are still clear, so the regional distribution has various forms.
Tu Mountain, Jing Mountain, Laohu Mountain, Yan Mountain, Cao Mountain, Zhuizi Mountain, East and West Lu Mountain and Dagong Mountain are acid crystalline rock hills, which form the soil area with yellow-brown soil and Aluminosilisic skeletal soil; Dahong Mountain, Minglong Mountain, Dajin Mountain and Dafei Mountain are carbonate hills, mainly the brown limestone soil; Flood area along Huai River, Guo River, Xie River, Hui River and middle and down streams of Beifei River are distributed with fluvo-aquic soil; low-lying plain in Huaibei and Tianhe Lake area are Shajiang black soil areas. The soil distribution rule from south to north is: yellow-brown soil-fluvo-aquic soil-Shajiang black soil.
Bengbu is in the transition zone of deciduous broad-leaved forests in warm temperate zone, deciduous broad-leaved forests in north subtropical zone and evergreen broad-leaved forests, the main vegetation is deciduous broad-leaved forests in warm temperate zone. The native natural vegetation has disappeared because of the historical changes, but the typical north and south trees are distributed in this area. The vegetation can be divided into following types according to the natural vegetation and artificial vegetation: secondary forest shrub, ancient scattered trees, artificial forest, protection forest and surrounding scattered trees, fruit trees, mulberry trees, underbrush, fireweeds, marsh and aquatic vegetation.
The artificial forest is monotonous, there are more pure forests and less mixed forests, usually it’s the mixture of black pines, masson pines and locust trees, sawtooth oaks. The protection forest is along Huai River embankment, poplar trees, Chinese parasol trees, deodar cedars and Chinese locust trees are planted at 2 sides of the urban roads, the greening of suburban roads is poplar trees, willows, paulownia and locust trees. Suburban gardening farms and fruit forests villages have economic forests such as apple trees, pear trees, grapes and pomegranates. There are 415 tree species in the whole city, belonging to 56 families, 102 genuses. There are 140 species of common arbors, 70 species of common bushes and 10 species of vine plants.
7. Air
In 2005, the annual average concentrations of SO2, NO2 and PM10 (Particle Matter) in Bengbu are compliant with Class II requirements of the national standard, “Environmental air quality standard” (GB3095-1996). The annual average dust concentration is lower than the provincial recommended level. It is shown by the monitoring results (see Table 11) that the key pollutants in the air are PM10 and dust, which account for 88% in the total pollutants. The air quality also shows a temporal variation with higher pollutant concentrations in winter and spring.
Table 7: Monitoring results of air quality (annual average, unit: mg/m3)
|Monitoring points |SO2 |NO2 |PM10 |Dust (t/km2/m) |
|Workers’ sanatorium |0.034 |0.036 |0.069 |9.65 |
|No.2 WTP |0.047 |0.052 |0.079 |12.50 |
|Department Store |0.021 |0.039 |0.062 |13.00 |
Although Bengbu is not within the controlled area for acidic rain, the situation is getting worse in view of increasing frequency and decreasing pH value of acidic rain taking place in this area (as shown in Table 12).
Table 8: Statistics of acidic rain in Bengbu (2000-2005)
|Year |Occurrence frequency (%) |pH range |Average pH value |
|2000 |6.0 |4.91~7.60 |6.16 |
|2001 |5.0 |4.85~8.30 |6.14 |
|2002 |15.4 |4.28~7.53 |5.46 |
|2003 |17.8 |4.23~7.83 |6.29 |
|2004 |17.9 |3.42~7.91 |6.21 |
|2005 |59.5 |3.46~7.74 |5.39 |
8. Surface Water
As is known, Huai River is one of the most polluted rivers in China, and despite considerable government efforts (including participation of the World Bank on the Huai River Pollution Control Project), it has proven to be one of the most difficult to clean up. According to the historic monitoring results[2], although the government has made significant investments on the pollution control of Huai River, the water quality of Huai River for Bengbu section does not meet the Class III water quality target[3] in the last seven years. This is especially during the dry season from January to March (shown in Figure 6) when the flow rate of Huai River is low and insufficient to dilute the incoming pollution.
Table 9: Water quality classification of Huai River within Bengbu (2000-2006)
|River name |Water quality target |2000 |2001 |2002 |2003 |
|Water quality classification|IV |IV |IV |IV |III-IV |
|Non-compliant parameters |Coliform, NO2-N, NH3-N, |Coliform, NH3-N, NO2-N, |NH3-N, NO2-N |Total hardness, NH3-N |/ |
| |As |As | | | |
9. Water Supply
Huaihe River crosses Bengbu and serves as the major source for industrial and domestic water in Bengbu city and water for farmland and vegetable garden in its suburbs. The main water intake is at the upstream of Bengbu Gate on the Huai River, which is supplemented by groundwater supply for some industries in the urban area, the groundwater supply for Huaishang District, and the emergency water supply source of Tianhe Lake.
The tap water for the city is supplied by the Water Supply Company and some enterprises withdraw underground water and Huaihe River water as their self-provided source. The city has built three tap water works, all of which take water from Huaihe River. The designed water supply capacity totals 500,000 t/d，of which 50,000 t/d from No.1 Water Works, 50,000 t/d from No.2 Water Work and 400,000 t/d from No.3 Water Works.
The intake of No. 1 and No.2 Water Works is located below the Bengbu Sluice and the water pumped is the untreated urban sewage and so water pollution is serious. In 1981 Ganglianghe Diversion Project with a design capacity of 80,000 t/d was completed. When the Bengbu Sluice is closed, No. 1 and No.2 Works have to divert water above Bengbu Sluice，but water quality is still not guaranteed. Currently, both No. 1 and No.2 Works have stopped water supply and No. 2 Works is now supplying the production enterprises of Fengyuan Group.
No.3 Water Works is located on the south bank of the Huaihe River at the eastern foot of Mount Heihu in the western suburbs of Bengbu city. The water pump house is located at about 200m to the upper reaches of the Bengbu Sluice and in 1987 the first-phase water supply works of 100,000 t/d was completed and in 1990, 1995 and 1998 the second-, third- and fourth-phase works were completed successively with a total water supply of 400,000 t/d. Now water supply in Bengbu depends on No.3 Water Works mainly.
In 1995, serious and unexpected water pollution occurred in the Huaihe River, which affected the water quality of the three water works. The Bengbu Municipal Government decided to divert water from Tianhe River as the emergency supplementary water source for the three water works. The project was built up in 1996 and the pump house had a design capacity of 150,000 t/d and designed supply period would last for three months or so.
The analysis of the actual water supply data over the years in Bengbu shows the proportion of urban industrial water tends to drop while that of domestic water tends to rise year by year. Currently about 284.8km of distribution pipe network is laid in the urban district with a pipe diameter of D100-D1400. Apart from water supplied by the tap water works, some industrial and mining enterprises in Bengbu withdraw most of water from the Huaihe River and part from the underground source and Longzi Lake as their self-provided source. According to survey, the whole city has about 50 self-provided sources using small water supply equipment with a total water supply of 50,000t/d.
Water quality at the water intake has been deteriorating since 1980’s with the occurrence of several water pollution accidents respectively in 1989, 1992, 1994, 1996, 1999, 2001 and 2004. Especially during the dry season, the water quality of Huai River is too poor to meet the water supply requirements (generally considered to be Class III), due to the lack of dilution by sufficient flow. According to the water quality monthly reports of urban centralized drinking water sources in Anhui Province[4] (Jan.2006 to Feb. 2007), there are six non-compliant records for the water intake upstream of Bengbu Gate, mostly during January to March with NH3-N as the key pollutant (See Table 8 below). At this stage, the impact of these incidents on tap water quality is unavailable.
Table 12: Water quality of major centralized drinking water source in Bengbu (Upstream of Bengbu Gate on Huai River)
| |2000 |2001 |2002 |2003 |2004 |2005 |
|Water quality |Class IV |Class III-IV |N/A |N/A |N/A |Class III-IV |
|classification | | | | | | |
|Standard-compliant |94.91% |95.24% |91.88% |93.59% |91.02% |94.23% |
|rate | | | | | | |
|Key pollutants |BOD, NH3-N |Non-ion NH3 |NH3-N |DO, NH3-N |NH3-N |CODMn, NH3-N |
Table 13: Non-compliant months for water intake upstream of Bengbu Gate
|Non-compliant Month |Key pollutants |
|January 2006 |NH3-N (1.38 times beyond standard) |
|February. 2006 |NH3-N (1.19 times beyond standard) |
|March 2006 |NH3-N (1.49 times beyond standard) |
|July 2006 |DO (0.94 time beyond standard) |
|January 2006 |NH3-N (1.36 times beyond standard) & Mn (0.54 time beyond standard) |
|February 2006 |NH3-N (1.67 times beyond standard) & Mn (0.35 time beyond standard) |
In view to the possible shortage of water supply due to the pollution in dry season every year, Tianhe was developed as the emergency water supply source for Bengbu urban area in 1996.
10. Storm Water and Wastewater Management
1. Existing Drainage System
The drainage system of Bengbu Municipality is constructed and connected catchment by catchment. The existing drainage system in the urban area is summarized below.
Table 14: Summary of Existing Drainage System in Bengbu Urban Area
|Located Area |Detailed Scope |Drainage System |
|Old Urban Area |East of Xijiagou Canal, south of Huai River, North of Tushan Rd., West of |Combined System |
| |Hangzhen Rd. and Heihu Mount. | |
|Hongye Village Area |East of Nanhu Rd., West of Longzi Lake, North of Lanling Road, and south of | |
| |Shengli Rd. | |
|Area west of the ring dyke |North of Donghai Ave. | |
| |South of Donghai Ave. |Separate System |
|Longzi Lake Dis. |Area east of Longzi Lake | |
|Area north of Huai River |Huaishang Dis. | |
2. Existing Combined Drainage System and Storm Drainage System
The existing combined system mainly covers the old urban area within the ring dyke and the industrial area west of the ring dyke and north of the Donghai Avenue. According to the statistic data, by the end of 2005, the total length of existing drainage pipes is 378 km, in which 329 km is the total length of the pipes of the combined system and the storm drainage pipes in the separate system. In addition, there are 13 storm drainage pumping stations, which pumps most of the storm water from the constructed area of Bengbu Municipality into the receiving water bodies such as Huai River, Longzi Lake, Xijiagou Canal and Baligou Canal.
3. Existing Sewage System
Up to now Bengbu has one municipal WWTP in operation, that is, the No.1 (Xijiagou) WWTP. The construction of the No.2 (Yangtaizi) WWTP is about to be started, and the No.3 (Huaishang) WWTP is under construction. The sewage systems corresponding to the above WWTPs are also under construction, and the details are shown below.
Table 15: Current Progress of Existing Sewage Systems
|Name of the Sewage |Current Status of Wastewater Collection System |Current Status of |
|System | |corresponding WWTP |
|Xijiagou Wastewater|Combined system: |Phase I (100,000m3/d) in |
|Catchment |Wastewater interceptors for West Shengli Road, Weisi Road, Tushan Road, |operation; |
| |Wuwan Road, west bank and east bank of Xijiagou Canal have been |Phase II (100,000m3/d) |
| |constructed, so that all the wastewater from the area of combined system |completed, which will be put |
| |in dry season could be collected and sent to the Xijiagou WWTP; |into operation soon. |
| |Separate system: | |
| |West of Xijiagou Canal: Most pipes laid, the sewage lifting pumping | |
| |station for HTZ has been completed and will be put into operation soon; | |
| |East of Xijiagou Canal: sewage pipes and lifting pumping station are under| |
| |construction. It is expected that they could be completed by the end of | |
| |2007. | |
|Yangtaizi Sewage |Combined system: |The design of the |
|System |The sewage is now discharged into Huai River through the Qingnianjie Storm|200,000m3/d(by two phases) |
| |Drainage PS, Zhihuai Rd Storm Drainage PS and Longzihe Storm Drainage PS. |WWTP is completed, and the |
| |Zhihuai Rd wastewater interceptor sewer and Changhuaiwei Rd trunk sewer |construction will start soon.|
| |are under construction, which are expected to be completed by the end of | |
| |2007, and by that time the dry-season flow from the combined system can be| |
| |collected and sent to the Yangtaizi WWTP. | |
| |Separate system: | |
| |West of Longzi Lake: Most pipes laid, the sewage pumping station for this | |
| |area is in operation. Currently the wastewater from west of Longzi Lake is| |
| |discharged into Longzi Lake through the Longzihe Storm Drainage PS. | |
| |However, with the completion of the Changhuaiwei Rd trunk sewer, it will | |
| |be collected by the Yangtaizi WWTP; | |
| |East of Longzi Lake: Part of the sewers and a sewage lifting PS are | |
| |constructed. Currently the sewage from east of Longzi Lake is temporarily | |
| |discharged into the Baojiagou Canal, and the wastewater is planned to | |
| |connected with the Yangtaizi WWTP when it is completed. | |
4. Existing Problems
- The design criteria of existing drainage network in the old urban area is too low, the design return period is no more than 0.5 year, the runoff coefficient and pipe diameter is too small, which limit the storage capacity of the pipes and easily result in wate logging of the catchment;
- The drainage of some sub-catchments is not designed in accordance with the local topography, such as the west sub-catchment and the Nanshijia system;
- The storage capacity of the inland rivers in the city is decreased due to the construction and random garbage dumping around the area;
- The design criteria of some exiting storm drainage PSs, such as Nanshijia PS and Xinchuantang PS, are too low, and some storm drainage PSs are not well maintained;
- The urban wastewater treatment and drainage system is incompleted, and the only existing WWTP is already under full-load operation;
- With the rapid development of Bengbu Municipality, the wastewater quantity increases dramatically beyond the original planning;
- The construction and management of urban drainage project is not concentrated, which greatly impacts the systematic and integrated development of drainage network;
- The local operation and maintenance capability is not efficient;
- The insufficient internal drainage management for constructed area results in the mixed discharge of sewage and storm water even in the area of separate system and the incompliant discharge from some industries.
11. Water Pollution Source
1. Major Industrial Polluters
The wastewater from the urban area of Bengbu Municipality is mainly discharged into the Huai River through seven outfalls. The major industrial polluters are mainly distributed in the area to the south of the Huai River and the Bengbu Industrial Park in the west of Huaishang District to the north of the Huai River. According to the list of key polluters of 2006 provided by Bengbu Municipal EPB, there are totally 33 industrial key polluters, 13 in the urban area and 20 in the three suburban counties. Their total pollutant discharge accounts for 90% of the total industrial discharge from the industries in the municipality. The details are shown in the following table.
Table 16: The statistical table of pollution discharge situation from the key pollution enterprise in Bengbu City in 2006
|No. |Name of the enterprise |The region |Water withdrawal |Withdrawal (ton/year) |Pollutant density |
| | |located |(ten thousand | |Mg/l |
| | | |tons/years) | | |
| | | | |CODcr |Ammonia |CODcr |Ammonia |
| | | | | |nitrogen | |nitrogen|
|Production of domestic waste (1000t) |174 |226 |240 |240 |260 |270 |382 |
|Treated quantity of domestic solid waste (1000t) |0 |0 |0 |0 |0 |0 |213 |
|Treatment rate of domestic solid waste (%) |0 |0 |0 |0 |0 |0 |55.8 |
|Production of industrial solid waste (1000t) |358.3 |400.9 |428.0 |428.0 |421.7 |647.6 |NA |
|Reutilized quantity of industrial solid waste (1000t) |287.5 |360.4 |316.2 |316.2 |349.4 |569.8 |NA |
|Reutilization rate of industrial solid waste (%) |80.24 |89.89 |74.19 |73.87 |82.85 |87.98 |NA |
|Treated quantity of industrial solid waste (t) |1400 |500 |2500 |2500 |2600 |4100 |NA |
|Production of hazardous waste (t) (*) |0.14 |0.16 |0.25 |0.25 |0.26 |0.36 |NA |
(*) It is very likely that the figures in the Table last line are in 10,000 tons and not tons (to be confirmed)
In March 2006, Phase I of Bengbu sanitary domestic solid waste landfill site was completed and put into operation with the treatment capacity of 600t/d, which could dispose most of the domestic solid waste production from Bengbu urban area, which was around 650t/d in 2006. Phase II of the solid waste landfill site is still under construction and expected to be completed by 2008 with the treatment capacity of 1000t/d.
12. Ecological Environment
Ecological resources in Bengbu include aquatic and terrestrial ecological resources. Aquatic ecological resources are mainly in the rivers and lakes in Bengbu. The fishes include crucian carps, silver carps, carps and other fishes with low economic value. Aquatic plants include reeds, water hyacinths, Waternut Spikesedges, water caltrops, arrowheads of Qian River and stratospheres.
Terrestrial ecological system includes the terrestrial vegetation and animal resources. The occasionally seen wide animals include hares, phasianus colchicuses, wide chickens, white storks, badgers, hedgehogs, prionailurus bengalensises, owls, golden eagles, swans, bats, mice, snakes, frogs, toads, lizards, geckos, wild geese, magpies, crows, sparrows, mallards, culvers, heron, woodpeckers and cormorants, etc.
13. Natural Hazards
The geological hazards in Bengbu Municipality happen mainly in the areas along Huai River, including the break on banks of rivers and lakes and seepage in dykes and embankments; the activities of geological hazards in North China Plain are light. Slow variation geological hazards are the main hazards.
The main geological hazards in flood season are collapse, landslide, seepage, embankment break, which happen on the embankments of main course and branches of Huai River. The landslide and collapse are mainly along the railway, where the embankment is high. The main geological hazards in non-flood season are special rock and soil hazards, collapse of dangerous rocks in quarries. The special rock and soil hazards happen mostly in the areas along Huai River, including oozy soft clay, expansive soil and liquefaction of sandy soil, the basement composed by this kind of rock and soil will make dangers to buildings, hydraulic engineering, railway and road engineering.
5. Project Description
1. Project Summary
Bengbu Integrated Environment Improvement Project (BIEIP) consists of eight sub-projects, which are summarized in the following table.
Table 19: Summary of BIEIP sub-projects
|Component |Sub-project No. |Name of Sub-project |Project Composition |Cost Estimation |
| | | | |(million Yuan) |
|Integrated Water |1 |Tianhe flood control project |Tianhe stormwater pumping station |65.20 |
|Resource Management| | | | |
| |2 |Longzi Lake flood control and |Longzi Lake stormwater pumping station |87.60 |
| | |environment improvement project| | |
| | | |Slope improvement and desilting of Longzi | |
| | | |Lake | |
|Urban Environmental|3 |Urban (south of Huai River) |Stormwater pumping stations and drainage |341.77 |
|Infrastructure | |environmental infrastructure |pipes in old city (including storm water and | |
|Improvement | |improvement Project |wastewater pipes) | |
| | | |Storm water, wastewater and road projects in | |
| | | |Economic Development District | |
| | | |Storm water projects, wastewater projects and| |
| | | |wastewater lift pumping station in High-tech | |
| | | |Zone | |
| | | |Storm water, wastewater and road projects in | |
| | | |Longzi Lake District | |
| |4 |Xijiagou & Baligou environment |Improvement of Xijiagou |90.98 |
| | |improvement project | | |
| | | |Improvement of Baligou | |
| |5 |Huaishang District flood |Wuxiaojie stormwater pumping station and |289.89 |
| | |control and urban environmental|related projects | |
| | |infrastructure improvement | | |
| | |project | | |
| | | |Expansion of Xiaobengbu Station | |
| | | |Wangxiaogou ditch | |
| | | |Wangxiaogou pumping station | |
| | | |Road project | |
| | | |Sewage main pipe from Guobei urban area to | |
| | | |Huaishang | |
|Sub-Urban |6 |Guzhen County integrated |Drainage pipes |72.44 |
|Environmental | |environment improvement project| | |
|Infrastructure | | | | |
|Improvement | | | | |
| | | |Embankment | |
| | | |Desilting works | |
| | | |Access road to the top of dyke | |
| | | |New culvert and gate | |
| | | |Newly constructed and reconstructed pumping | |
| | | |stations | |
| | | |New bridges | |
| | | |Protective slope | |
| | | |Non-engineering measures | |
| |7 |Huaiyuan County integrated |Flood drainage canal |71.69 |
| | |environment improvement project| | |
| | | |Drainage network | |
| | | |Stormwater pumping station | |
| | | |Road and related storm water pipes | |
| |8 |Wuhe County Mohekou integrated |Sanpu stormwater pumping station and related |314 |
| | |environment improvement project|projects | |
| | | |Water supply | |
| | | |Wastewater treatment | |
| | | |Storm water pipes | |
| | | |Road project | |
2. Project Quantities of the Proposed Projects
1. Tianhe Flood Control Project
- Tianhe Storm Drainage PS is located in Qinji township of Yuhui district on the south side of Tianhe Sluice between the slope toe on the south side of Mount Tu and Tianhe production embankment, about 50 m to the south of National Highway No. 206.
- Tianhe Storm Drainage Station is of rear dyke structure and storm water is drained into Huaihe River through the dyke-crossing culvert. It keeps out flood by using the surrounding dyke on the Tianhe River. The pumping station has a design flow of 55m3/s and installed capacity of 4800kw and the design standard for flood control is once in 100 years for the Huaihe River side and once in 20 years for the inner side of Tianhe River.
- The plot area for the project: The construction land for Tianhe storm drainage station is composed of three parts: 1. Land for the station area including the land for the building of the pumping station and land for administration of the pumping station; 2. Land for the borrow area; 3. Land for the construction area. The land for the station area and borrow area is the permanent land with a total area of 20.33 mu and the land for the construction area is temporary land with an area of 1.5 mu.
Table 20: Quantities of main structures for Tianhe storm drainage station
|No. | Component | Size | Remarks |
|1 |Intake channel | 7.5m long with a section of 3.5×4.5|Design pumping flow of 11m3/s and speed of 0.7m/s |
|2 |Front pool and intake | 20 m long and 45.2-55.2 m | 6.8m-high reinforced concrete protective retaining |
| |pool |wide |wall on both sides |
|3 |Main pump house | 14.55m long and 26.7m wide |Equipped with temperature-lowering passageway, sewage |
| | | |closure grid trough, desilting corridor path, two-way |
| | | |crane. The upper part is the main factory building. |
|4 |Self-drainage culvert | 37.5m long with 4 holes |Located on both sides of the main pump house and |
| | | |pressure water tank, equipped with electric hoist and |
| | | |start-stop gear. |
|5 |Discharge channel | 13m long with a section of 2.5××3.5 |Outlet speed of 1.35m/s |
|6 |Pressure water tank | 11.77m long and 19.4m wide |Connected with the body of Tianhe sluice culvert by |
| | | |stop of water by the separation joint and discharge |
| | | |water is collected by five plant units. |
|7 |Secondary factory |Three-storied, 30.9m long and 10.3m |Located on the top of self-drainage culvert on the |
| |building |wide |southwest side of the main pump house with the upper |
| | | |part as the control storey (central control room); the|
| | | |ground storey as the distribution cabinet storey；the |
| | | |first floor underground as the cable storey. |
|8 |Installation shop | 9.40m long and 9.80m wide |On the top of self-drainage culvert on the northeast |
| | | |side of the main pump house, mainly for installation |
| | | |and inspection of electromechanicl equipment |
| 9 |Transformer substation | 9.25m long and 6.90m wide |Situated about 10 m to the southwest of the main pump |
| | | |station and west of the secondary factory building. |
|10 |Administration area of |Plot area of 1750m2 |Situated on the northeast side of the pump station to |
| |production and living |and floor space of 1000m2 |the east of the installation shop with an office |
| | | |building, residential quarter and warehouse. |
|11 |Revetment for intake | 10m long with a bottom width of 55.20m|Side slope on both sides 1∶3, built with grouted |
| |channel | |stone. |
- The siting of Tianhe storm drainage station is located near Tianhe Sluice. The construction work will be carried out synchronously with the renovation of Tianhe Sluie by combining the sluice with the station and is divided into three parts approximately:
1）First of all, a coffer dam will be built within the scope of the site of the pumping station and accumulated water there has to be drained;
2）Then the foundation pit will be excavated by an excavator and beyond the foundation trough a water-collecting pit is dug and drain ditch is excavated around the trough. The waterlogging in the trough is collected to the pit and drained by a submersible pump to facilitate construction in the foundation pit;
3）After completion of the excavation of the foundation pit, such working procedures as forming, bar rolling, concrete pouring and curing can be carried out;
4）After completion of structures, equipment will be installed and debugged;
5）After completion of the work, the coffer dam is removed and water is run through.
2. Longzi Lake Flood Control and Environment Improvement Project
Table 21: Summary of Major Project Quantities of Longzi Lake Sub-project
|Content |Form and Size | Quantities |
|Desilting of the South Lake|Desilting is done by amphibious environmentally-friendly |Desilting depth of 0.12-0.58m and |
|of Longzi Lake |desilting machine and the South lake covers an area of 3.449 |dredging quantities of 2.2028 |
| |million m2 to be divided into 8 sub-areas for dredging. |million m3. |
| |Along the coast of South Lake 6 sediment stack yard are set | |
| |up and the coffer dam is built with rolled soil with a total | |
| |plot area of 1.568 million m2. | |
| |Residual water is precipitated by dosing. | |
|Repair of side slope of |It covers the perimeter of the south lake area and the east |Total length of natural |
|Longzi Lake |embankment of the section from Shengli Rd. East in the north |coastline:13062m, eco-embankment: |
| |lake area to Donghai Avenue. |5288m and hard engineering |
| |Natural coastline and eco-embankment should be adopted as |embankment: 4107m |
| |much as possible and for partial section restricted by | |
| |conditions, hard engineering embankment is used. | |
|Longzihu storm drainage |Located at the site of Laozhengjiadu Sluice in the outlet |Earth excavation of 52505m3, |
|pumping station |section of Longzi Lake with rear dyke structure. |spoil volume of 10501 m3 and |
| |Design drainage flow of 40m3/s with a plot area of 49.33 mu, |back-filling volume of 71843 m3 |
| |including the pump station, self-drainage culvert and | |
| |administration area. | |
3. Urban (South of Huai River) Environmental Infrastructure Improvement Project
Table 22: Quantities of storm drainage pumping station for the urban project
| No. | Name of PS |Design Capacity and Project Quantities |
|1 |Xinchuangtan storm drainage pumping |4 new submersible axial pumps with a single set flow of Q=3.06m3/s,H=5.6m |
| |station |and motor power of 250kw；one existing submersible axial pump with a flow of |
| | |Q=3.2m3/s,H=5.6m and motor power of 310kw. The pump house has a plane size of|
| | |16.10×5.3m with a depth of 6.35m. |
|2 | Nanshijia storm drainage pumping |3 new submersible axial pumps with a single set flow of Q=2.11m3/s,H=4.1m and|
| |station |motor power of 155kw；Now two submersible axial pumps are available with a |
| | |flow of Q=1.85m3/s,H=4.1m and motor power of 155kw. The pump house has a |
| | |plane size of 14×4.8m with a depth of 4.5m. |
|3 |Zhihuai Rd. storm drainage pumping |The corroded concrete is chiseled away completely and then the original |
| |station |chiseled surface is reinforced with high-strength concrete. New and old |
| | |concrete should be mixed well and haunched corner set up between the wall |
| | |panel and baseplate. Finally anticorrosive coatings are applied on the |
| | |contact surface between concrete and sewage. |
|4 |Yinghu Rd. sewage lifting pumping |Two new submersible pumps are added with a single set flow of 400 L/S, lift |
| |station |of 17.5m and motor power of 110KW. The existing 500KVA transformewr is |
| | |changed to 630KVA transformer. |
Table 23: Quantities of Pipe Network for the Urban Project
|No. | Project Contents |Project Capacity and Project Quantities |
|1 |Drainage pipe in |Drainage pipe at Shengli Rd West D900—580m； Drainage pipe at Nanshan Rd.D900—100m； |
| |the old urban |Drainage pipe at Zhongrong Street D443—180m,D600—135m,D800—286m； |
| |district (including|Sewage pipe at Zhuizishan Rd.d400 double wall corrugated pipe with a length of 440m； |
| |storm and sewage |Drainage pipe at Hongqi 2 Rd D1000—440m,D1500—820m； |
| |pipes） |Drainage pipe at Yongye Rd D900—512m； Drainage pipe at Changqing Rd. North D1500—380m； |
| | |Drainage pipe at Changzheng Rd.D1000—182m,D1200—267m,D1500—254m； |
| | |Storm pipe at Shengli Rd. East D800—350m,D900—350m,D1200—1270m,D1500—1583m,D1800—223m； |
| | |Drainage pipe at Daqing 2 Rd.D2000—400m,D2200—220m； |
| | |Drainage pipe at Zhucheng Rd. D1200—235m,2D1500—120m,D1500—160m； |
| | |Drainage pipe at Nanhu Rd. D1200—1031m； |
|2 | |Changsheng Rd.(south of Donghai Avenue)D1000—1700m；Longxiang Rd (south of Donghai Avenue)D1200—1300m |
| |Storm water project|； |
| |in the economic |Qiancheng Rd. (south of Donghai Avenue) D1200—1500m；Longwan Rd (south of Donghai Avenue)D1200—2500m；|
| |development zone |Longtan Rd (south of Donghai Avenue)D2000—1300m；Longzhu Rd (south of Donghai Avenue )D1000—1200m； |
| | |Jinxiu Rd (south of Donghai Avenue)D800—1900m；Huochang 5 Rd. (south of the old airport) D1500—1350m；|
| | |Hongqi 1 Rd.(Hanghua Rd-Jiefang Rd)D600—500m；Xuefu Rd, East Section D1000—500m； |
| | |Yan’an 2 Road(south of the old airport)D1200—1500m； |
| | |Huochang 6 Rd.(south of the old airport) D1500—1350； |
| | |Caoshan Rd (Donghai Avenue – Shengli Rd)D1200—1800m； |
| | |Hongqi 6 Rd (Hangzhen Rd-Gongnong Rd.)D2000—330m； |
| | |Yinghu Rd. (Jiefang Rd-Hongye Rd ) Two, D2400—1400m； |
| | |South section of Hanghua Rd (Huochang 2 Rd – Huochang 5 Rd)D1000—1000m； |
| | |Yan’an Rd. South (Donghai Avenue – Yanshan Rd)D600-1200—2300m； |
| | |Bengyi Rd (Shengli Rd- Huangshan Rd)D1200-1500—4000m； |
| | |Caida Rd ( Donghai Avenue- Huangshan Rd)D900-1500—2300m； |
| | |Wanghu Rd (Caoshan Rd-Bengyi Rd )D2 m×3m trench cover culvert； |
| | |Xianghu Rd (Caoshan Rd-Bengyi Rd ) D800-1300—1400m； |
|3 | Sewage project in |Changsheng Rd (south of Donghai Avenue )D500—1700m；Longxiang Rd.(south of Donghai Avenue ) |
| |the economic |D300—1300m； |
| |development zone |Qiancheng Rd (south of Donghai Avenue) D350—1500m；Longwan Rd (south of Donghai Avenue)D400—2500m； |
| | |Longtan Rd (south of Donghai Avenue) D1000—1300m；Jinxiu Rd (south of Donghai Avenue) D400—1900m； |
| | |Huochang 5 Rd. (south of the old airport)D400—1350m；Huochang 6 Rd (south of the old airport) |
| | |D400—1350； |
| | |Caoshan Rd.( Donghai Avenue-Shengli Rd.) D600-900—1800m；East Sectionof Xuefu Rd. D400—500m； |
| | |Wanhu Rd. (Caoshan Rd-Bengyi Rd) D400—1400m；Yan’an 2 Road (south of the old airport ) D400—1500m； |
| | |Xianghu Rd (Caoshan Rd-Bengyi Rd ) D400—1400m； |
| | |Longzhu Rd ((south of Donghai Avenue ) D300-800—1200m； |
| | |South section of Hanghua Rd (Huochang 2 Rd- Huochang 5 Rd.) D700—1000m； |
| | |Hongqi 1 Rd (Hanghua Rd- Jiefang Rd.) D400—500m； |
| | |Yan’an Rd South (Donghai Avenue – Yanshan Rd) D400—2300m |
| | |Bengyi Rd. (Shengli Rd- Huangshan Rd.) D800-900—4000m； |
|4 | Road building in |Caoshan Rd. 1745.300m long and 35m wide；Yinghu Rd. 1237.000m long and 30m wide； |
| |the economic |Changsheng Rd, 3684.109m long and 20m wide；Jinxiu Rd 1646.028m long and 30m wide； |
| |development zone |Longtan Rd. 1941.320m long and 30m wide；Longwan Rd. 1611.738m long and 30m wide； |
| | |Longxiang Rd. 3268.221m long and 40m wide；Longzhu Rd 4912.845m long and 30m wide； |
| | |Qiancheng Rd. 419.995m long and 16m wide； |
|5 |Storm water project|Drainage at Weier Rd（section from Tianhe Rd to Yinghe River） D1200； |
| |in the new & |Drainage at Huangshan Avenue（section from Tianhe Rd to Yinghe Rive）Pipe size D2200； |
| |hi-tech zone |Drainage at Xingji Rd（section from Tianhe Rd to Yinghe River）Pipe size D1500； |
| | |Drainage at Shanxiang Rd（Weier Rd to Yanshan Rd）； |
| | |Drainage at Tianhe Rd.（Weier Rd to Yanshan Rd）Pipe size D1500； |
| | |Drainage at Daqing Rd（Weier Rd to Yanshan Rd）Pipe size D2200； |
| | |Drainage at Jiahe Rd（Huangshan Avenue to Yanshan Rd） Pipe size D1200； |
| | |Drainage at Changqing Rd South （Weier Rd to Yanshan Rd） Pipe size D1500； |
| | |Drainage at Changzheng Rd Soutn （Weier Rd to Yanshan Rd） Pipe size D1800； |
|6 | Sewage project in |Drainage at Weier Rd（section from Tianhe Rd to Yinghe River） Pipe size D1200； |
| |the new & hi-tech |Drainage at Huangshan Avenue（section from Tianhe Rd to Yinghe River） Pipe size D2200； |
| |zone |Drainage at Xingji Rd（section from Tianhe Rd to Yinghe River） Pipe size D1500； |
| | |Drainage at Shanxiang Rd（Weier Rd to Yanshan Rd）； |
| | |Drainage at Tianhe Road（Weier Rd to Yanshan Rd） Pipe size D1500； |
| | |Drainage at Daqing Rd（Weier Rd to Yanshan Rd） Pipe size D2200； |
| | |Drainage at Jiahe Rd （Huangshan Avenue to Yanshan Rd.） Pipe size D1200； |
| | |Drainage at Changqing Rd South （Weier Rd to Yanshan Rd） Pipe size D1500； |
| | |Drainage at Changzheng Rd South （Weier Rd to Yanshan Rd） Pipe size D1800； |
|7 |Sewage lifting |Xingjilu sewage pumping station is to be set up at the junction of Jianghuai Rd and Xingji Rd. in the |
| |pumping station |low-lying area with a near-term capacity of 9300 m3/d and long-term capactity of 18600 m3/d with a |
| | |plot area of 1500m2. The discharge pipe of the pumping station uses pressure pipe of DN600, changed to|
| | |gravity line of d 800 along Xingji Rd to Daqing Rd and finally connected to the sewage treatment plant|
| | |in the south of the city. |
|8 | Storm project in |Drainage at Shengli Rd. East （Outer Ring Rd－Lilou Rd）D2000—1780m； |
| |Longzihu District |Drainage at Baota Rd（Lilou Rd－Longshan Rd）D900-360m, |
| | |（Longshan Rd－Longjin Rd）D1200-370m, |
| | |（Longjin Rd－Laoshan Rd）D1200-560m ； |
| | |Drainage at Guxing Rd（Longshan Rd －Laoshan Rd ）D1200-1020m, |
| | | （Lilou Rd－Longshan Rd）D900-360m； |
| | |Drainage at Qiyan Rd（Lilou Rd－Laoshan Rd）D1200-1390m； |
| | |Drainage at Shiwu Rd（Lilou Rd －Qiyan Rd）D1200-1140m, |
| | | （Qiyan Rd－Baota Rd）D2000-800m； |
| | |Donghai Avenue（Outer Ring Rd－Lilou Rd）D2000-2010m； |
| | |Drainage at Lilou Rd （Shengli Rd. East－Donghai Avenue）D900-1740m； |
| | |Drainage at Longjin Rd（Shengli Rd. East－Donghai Avenue）D900-1474m； |
| | |Drainage at Longshan Rd（Shengli Rd. East－Donghai Avenue）D900-1608m； |
|9 |Sewage project in |Drainage at Shengli Rd. East （Outer Ring Rd－Huguang Rd）D600-4780m； |
| |Longzihu District |Drainage at Baota Rd（Lilou Rd － Longshan Rd）D450-360m, |
| | | （Longshan Rd－Longjin Rd）D450-370m, |
| | | （Longjin Rd－Laoshan Rd）D600-560m； |
| | |Drainage at Guxing Rd（Lilou Rd－Laoshan Rd）D450-1380m； |
| | |Drainage at Qiyan Rd （Lilou Rd－Laoshan Rd）D450-1390m； |
| | |Drainage at Shiwu Rd （Lilou Rd－Qiyan Rd）D450-1940m； |
| | |Drainage at Donghai Avenue（Outer Ring Rd－Lilou Rd）D600-2010m； |
| | |Drainage at Lilou Rd （Shengli Rd. East －Donghai Avenue）D600-1740m； |
| | |Drainage at Longjin Rd （Shengli Rd. East－Donghai Avenue）D450-1474m； |
| | |Drainage at Longshan Rd（Shengli Rd. East－Donghai Avenue）D450-1608m； |
|10 | Road building in | Lilou Rd：Urban trunk road of Class II with a design speed of 50km/h and planned building line of 42m|
| |Longzihu District |wide |
4. Xijiagou & Baligou Environment Improvement Project
Table 24: Project Quantities of Xijiagou & Baligou Project
|Project Contents |Form and size |Quantities |
|Xijiagou |Connecting channel |Rivercourse bottom width of 3.0m with side slope of 1:2 and |Dredging depth of 0.5m for |
|project |to the right branch |water depth of 2.5m |the section |
| |ditch | |from Xijiagou Xingzhong Rd to|
| | | |Xinghe Rd and the remaining |
| | | |section dredging depth of |
| | | |0.3m. |
| | | |This project has an |
| | | |excavation |
| | | |amount of 557,000 m3 |
| | | |including 33,000 m3 of |
| | | |dredged silt. |
| |Dredging of the |1．Bottom width of 40m for rivercourse from Xingzhong Rd to | |
| |preceding section |Xinghe Rd with a side slope of 1:2 and water depth of | |
| |of rivercourse and |2.5m；bottom width of 9.0m for rivercourse from Xinghe Rd to | |
| |repair of side slope |south outer ring road with a side slope of 1:2 and water depth| |
| | |of 2.5m. | |
| | |2．River sediment cleaning length of 5.2 km and 8 mud-removal | |
| | |areas are set on the way. | |
| | |3．Natural slope of 1:2 from the ditch bottom | |
| | |to the place with an elevation of 21m for the side slope of | |
| | |ditch and the surface is protected by planting grass bricks. | |
| | |At an elevation of 21m a 5.0m-wide walk path is built with | |
| | |concrete placement. From 21m to 23.5m section, natural slope | |
| | |is adopted with grass planted on the surface. | |
| |Rubber dam at |60m long | |
| |Xingzhong Rd | | |
|Baligou |Rivercourse dredging |1．Bottom width of 3.0m from Jiangqiao Rd |This project has an |
|project | |to Huangshan Rd, bottom width of 6.0m from Huangshan Rd to |excavation amount of |
| | |Yanshan Rd and bottom width of 8.0m from Yanshan Rd to Tushan |253,000 cu m including 3347 |
| | |Rd. Side slope of 1:2 without exception. |cu m of dredged silt. |
| | |2．Total dredging length of 3719m with a thickness of 0.3m. | |
| |Side slope repairing |Design flood level of 23.4m。 |Filling of 148,000 cu m. |
| | |Natural slope of 1:2 from the ditch | |
| | |bottom to an elevation of 21m for the side slope of ditch and | |
| | |the surface is protected by planting the grass bricks. At an | |
| | |elevation of 21m a 5.0m-wide walk path is built with concrete | |
| | |placement. From 21m to 23.5m section, natural slope is | |
| | |adopted with grass planted on the surface. | |
| |Rubber dam at |60m long | |
| |Xingzhong Rd | | |
5. Huaishang District Flood Control and Urban Environmental Infrastructure Improvement Project
Table 25: Major quantities of Huaishang district project
|Name of Component| Content | Size |Quantities |
|Storm drainage PS|Wuxiaojie |Design drainage flow of 80.8m3/s with |Excavation volume of |
| |storm drainage pumping station|installation of five pumps. The controlled |528594m3 for the |
| |and |drainage level is16.5m at the starting point of |foundation |
| |Supportive works |the diversion canal （inner side of No.14 |pit |
| | |culvert ） with a water surface gradient of | |
| | |1/7500 and canal bottome elevation of 13.5m. | |
| | |Calculation of the section of diversion | |
| | |canal：ditch bottom width of 26m, side slope of | |
| | |1：2 and average ditch mouth width of ~40m | |
| |Xiaobengbu storm drainage |Current pumping flow of 17.1m3/s | |
| |station |Extended pumping flow of 18.19m3/s | |
| |Wangxiaogou storm drainage |Newly-built with a pumping flow of 16.3m3/s | |
| |station | | |
| |Diversion canal works for |Excavation of 3.6 km diversion canal and |Excavation volume of the |
| |Wangxiaogou storm drainage |broadening of 5.5km dredging canal. Tempoaray |new diversion canal is |
| |station |width of the canal bottom is 10m and |288000 m3 and the earth |
| | |longitudinal slope fall is 1：10000 and at 1.0m |volume of dredging the |
| | |above normal water level a 3.0m-wide platform is|diversion canal is 165000|
| | |to be built up with 2.0m-wide concrete road |m3 |
| | |surface. | |
|Road and bridge |Riverside road （Wuxiaojie |11765m long and 28m wide | |
|building |–Daqing Rd. North） |Crossing the FeiHuai New River bridge, passing | |
| | |through Beijing-Shanghia Railway box culvert | |
| | |downward and crossing Jiefanglu bridge and | |
| | |Chaoyanglu bridge | |
| |Daqing Rd. North （branch |500m long and 45m wide | |
| |road） | | |
| |Wuzhong Rd（branch road） |495m long and 40m wide | |
| |Houlou Rd (branch road） |730m long and 30m wide | |
| |Zhengfu Rd East (branch road）|440m long and 40m wide | |
|Main sewage pipe project from Guobei urban |Main pressure pipe from Huaiyuan Industry Park | |
|district to Huaishang district |Border to Bengbu No. 3 Sewage Treatment Plant | |
| |with a size of DN600 and length of 15000km | |
6. Guzhen County Integrated Environment Improvement Project
Table 26: Project Quantities of Guzhen county project
|Name of Project |Content |Quantities |
|Embankment |Boundary |1．About 1.5 km of section in the current boundary |30,000 m3 of earth from |
|of flood prevention |Ditch |ditch is filled with reeds, which are to be removed by|dredged rivercourse and |
|ditch and dredging | |excavating a deep trough of 30 m wide with a bottom |59,500 m3 of earth for filling|
| | |elevation of 16.5 m. |the ponds |
| | |2．Ponds behind the boundary ditch dyke are to be | |
| | |filled and reinforced. | |
| |Wugu River |1．The main ditch section from Sanba River |Dyke length of 3.4 km with an |
| | |~Liuyuan on the right dyke of Wugu River is reinforced|earth volume of 20,100 m3 from|
| | |in line with the flood prevention standard of once in |construction and 30,000m3 |
| | |20 years and the dyke is designed for superelevation |from redging. |
| | |of 1 m, top width of 6 m and inner and outer side | |
| | |slope of 1:3. The dyke can be reinforced by banking by| |
| | |borrowing soil and rolling the spoil. | |
| | |2．Four blockoff dams on the river have to | |
| | |be removed. About 500 m is impeded at | |
| | |the junction of Wugu River and Wugu highway and | |
| | |dredging is required. | |
| |Maintenance |1．Dredging length of 5.15 km and dredged in line with|Dredged earth volume of |
| |Squad ditch |a drainage flow and water level of once in 5 years. |112,000 m3 |
|Total quantities：dyke length of 3.4 km with an earth volume of 20,100 m3, dredged earth volume of 172,000 m3 and filled earth volume|
|of 59,500 m3 |
|Dredging of storm |Ditches in |Dredging of the ditch west of Liuzhuang village with a|Dredged earth volume of 45,000|
|drainage ditch |Wangsiweizi Part |planned bottom width of 4 m, water depth of 3.5 m, |m3 |
| | |bottom elevation of 16～15 m and side slope of1:2 | |
| |Ditches in Sanbahe |Dredging of the drainage ditch in the south of the |Dredged earth volume of |
| |Part |city, ditch of No.1 Middle School, Wangnan ditch and |144,800 m3 |
| | |Weibei ditch with a planned bottom width of 2～71 | |
| | |m,water depth of 1～2.2 m, bottom elevation of | |
| | |18～15.05 m and side slope of 1:1.5 | |
| |Dalou Part |Dredging of suburban drainage ditches with a planned |Dredged earth volume of 25,600|
| | |bottom width of 5 m, water depth of 1.5 m, bottom |m3 |
| | |elevation of 15.18～15 m and side slope of 1:1.5 | |
| |Xiaolou Part |Dredging of the diversion canal for Xiaolou culvert |Dredged earth volume of 8200 |
| | |with a planned bottom width of 3 m, water depth of 2.2|m3 |
| | |m, bottom elevation of 15 m and side slope of 1:1.5 | |
|Total quantities：total dredged earth volume of 223,600m3 |
|culvert & sluice project|Yinzhuang Sluice on |Design capacity is controlled by irrigation with two-way impact prevention and design |
| |Sanba river |flow of 7 m3/s. The sluice is of single hole structure with a hole width of 3.5 m and |
| | |base board elevation of 14 m and bridge building is promoted by sluice. |
| |Wugu River regulating|Irrigation diversion flow of 5 m3/s, single hole structure with a hole width of 3 m |
| |structure |and base board elevation of 14 m and bridge building is promoted by sluice. The sluice|
| | |is located on Wugu River below the junction with the main ditch in Liuyuan. |
| |Expansion of the main|To be expanded on the original culvert site with two-hole structure of 4×4 m and |
| |ditch culvert in |culvert base plate elevation of 12.37 m. Design drainage water level of 17.27 m above |
| |Liuyuan |the sluice and 17.17 m below the sluice and design flood prevention water level of |
| | |19.42 m |
| |Self-drainage culvert|Drainage area of 5.1 km2 and design drainage flow of 8.3 m3/s with a reinforced |
| |in Liuzhuang village |concrete box culvert structure. |
| |Connecting culvert to|Drainage area of 7.3 km2 1 and design drainage flow of 0.9 m3/s with a reinforced |
| |Sanba River |concrete box culvert structure. |
| |Dyke-crossing culvert|Xulaojia dyke-crossing culvert （size of 1×1.5m）and Longtan dyke-crossing culvert |
| |for the right dyke of|（size of 1×1.5m） |
| |the main ditch in | |
| |Liuyuan | |
| |Dyke-crossing culvert|Wangsiweigou dyke-crossing culvert （size of 1×1.5 m）, Zhangqiao dyke-crossing |
| |for the left and |culvert （size of 2×2 m）and Qizhuang dyke-crossing culvert （size of 1×1.5 m）. |
| |right dykes of the | |
| |boundary ditch | |
|Storm drainage pumping |Guxi storm drainage |Drainage area of 3.40 km2, drainage flow of 5.24 m3/s, design lift of 4～5 m and |
|station |pumping station |installed capacity of 400 kW. The self-drainage culvert is of the reinforced concrete |
| |(reinforced and |box culvert structure. |
| |expanded） |Installation of 5 vertical axial pumps with one set flow of 1.1 m3/s, design lift of |
| | |4～5 m and supportive motor power of 80 kW. |
| |Xiwei storm drainage |Drainage area of 1.82 km2, design flow of 2.71 m3/s, design lift of 4～5 m and |
| |pumping station |installed capacity of 195 kW. Installation of 3 vertical axial pumps with one set flow|
| | |of 0.9 m3/s, design lift of 4～5 m and supportive motor power of 65 kW. |
| |（newly-built） | |
| |Qizhuang storm |Drainage area of 3.7 km2, design flow of 6.0 m3/s, design lift of 4～5 m and installed|
| |drainage pumping |capacity of 480 kW;The drainage culvert is of the reinforced concrete box culvert |
| |station |structure. Installation of 5 vertical axial pumps with one set flow of 1.2 m3/s, |
| | |design lift of 4～5 m and supportive motor power of 90 kW. |
| |（newly-built） | |
| |Dalou storm drainage |Drainage area of 3.20 km2, design flow of 5.19 m3/s, design lift of 4～5 m and |
| |pumping station |installed capacity of 400 kW. The drainage culvert is of the reinforced concrete box |
| | |culvert structure. Installation of 5 vertical axial pumps with one set flow of 1.1 |
| |（newly-built） |m3/s, design lift of 4～5 m and supportive motor power of 80 kW. |
| |Xiaolou storm |Drainage area of 7.8 km2, self-drainage flow of 8.74 m3/s, pumping flow of 3.51 |
| |drainage pumping |m3/s,design lift of 4～5 m and installed capacity of 270 kW. Installation of 3 |
| |station |vertical axial pumps with one set flow of 1.2 m3/s, design lift of 4～5 m and |
| | |supportive motor power of 90 kW, 270 kW in all. |
| |Chengnan storm |Drainage area of 1.3 km2 and drainage flow of 1.95 m3/s. Installation of 3 vertical |
| |drainage pumping |axial pumps with one set flow of 0.5 m3/s, design lift of 4～5 m and supportive motor |
| |station |power of 45 kW, 135 kW in all. |
|Flood prevention |Road on the left dyke|Cement-concrete surface of the structure of 20cm C30 |8.7 km long and 6 m wide with |
|road on top of dyke |on Hui River |concrete course, 15cm 6％ cement stabilized crushed |an area of 52200 m2 |
| | |stone, 15cm 4％ cement stablized crushed stone and | |
| | |15cm Classd broken stone bedding. | |
| |Road （Damuqiao to | |0.8 km long and 6 m wide with|
| |Sanba culvert ）on | |a road area of 4800 m2 |
| |the right dyke on | | |
| |Sanba River | | |
| |Road for the main | |2.62 km long and 4.5 m wide |
| |ditch in Liuyuan | |with an area of 11790 m2 |
|Total quantities：road length of 12.12 km and width of 4.5～6 m with an area of 68790 m2 |
|Slope protection and greening project |Revetments for the left dyke on Hui River, Sanba | |
| |River, boundary ditch, railway canal and main ditch in| |
| |Liuyuan, greening of Sanba River and revetment and | |
| |greening for other ditches and ponds. | |
|Bridges |25 bridges including Linggu highway bridge, Wuguhe | |
| |traffic bridge and so on. | |
|Urban drainage pipeline|Main sewage pipe at |To be laid along Guyang Rd from west to east, and at |2600 m long |
| |Guyang Rd |Dongfeng Rd to be laid along it southward to Daying | |
| | |Rd. The main pipe starts near Guzhen Technical | |
|（culvert） | |Supervision Station and ends at the junction of Daying| |
| | |Rd and Hui Rd. The pipe size is d1000. | |
| |Sewage pipe at Daying|To be laid along Daying Rd and starts at Hui Rd and |1100 m long |
| |Rd |ends at Hui Rd with a pipe size of d1200. | |
| |Main pipe from the |To be laid along the planned road on the east bank of |2500 m long |
| |east bank of Sanba |Sanba River and north bank of Hui River, starting at | |
| |River to the sewage |the sewage lifting pumping station on the east bank of| |
| |treatment plant |Sanba River and ending at the sewage lifting pump | |
| | |house of the sewage treatment plant with a pipe size | |
| | |of 1500 | |
| |Sewage closure |To be laid along Shengli Rd and Miaogang Rd and an |1200 m long |
| |pipeline at Shengli |intercepting well is set up near Guzhen No.2 Primary | |
| |Rd |School to intercept the sewage on Shengli Rd to make | |
| | |it join the sewage closure pipeline on Guyang Rd from | |
| | |south to north with a pipe size of d500 | |
| |Drainage pipe from |Current drainage pipe is damaged seriously and calls |900 m long |
| |the Party School to |for renovation into a combined sewer with a pipe size | |
| |the Oil Factory |of d600. | |
| |Dormitory and | | |
| |Qinghua Rd. | | |
| |Drainage pipe from |A combined sewer starting at the Telecom Bureau and |450 m long |
| |the Telecom Bureau to|ending at the Soy Sauce Factory with a pipe size of| |
| |the Soy Sauce Factory|d800～d2000 | |
| |Drainage pipe at |A combined sewer starting near Jiaoyuan and ending at |1200 m long |
| |Guyang Rd |the east bank of Sanba River with a pipe size of | |
| | |d600~d1200 | |
| |New drainage pipe |A drainage box culvert starting at Huangyuan Rd South,|1000 m long |
| |from Huangyuan Rd |passing through Laojie and ending at the Soy Sauce | |
| |South to Laojie |Factory to Sanba River with a pie size of d600~d1200 | |
| |Concrete square |A combined box culvert starting at the Soy Sauce |1900 m long |
| |culvert from the Soy |Factory and ending at the west bank of Sanba River | |
| |Sauce Factory to the|with a size of 3.5 w ×5 m h, mainly to drain the storm| |
| |west bank of Sanba |water in the south of Guzhen county seat. An | |
| |River |intercepting well is set up at the end of the box | |
| | |culvert to intercept the dry flow sewage and first | |
| | |rain runoff to the main sewage closure pipeline on the| |
| | |east bank of Sanba River. | |
|Total quantities：Pipe（culvert）length of 12850 m |
7. Huaiyuan County Integrated Environment Improvement Project
Table 27: Quantities of Huaiyuan county project
|Category of | Content | Quantities |
|project | | |
| Drainage pipe |Improvement of pipe network |Lizuizi drainage pipe|D1350—200m；D1500—553m； |
|network | |network |D1800—80m |
|project | | | |
| | |Langanqiao drainage |D1500—2022m；D2000—340m； |
| | |pipe network |D2200—405m |
| | |Xinzhuangzi drainage |D1200—435m；D1800—535m； |
| | |pipe network |D2000—545m；D2200—600 m |
| | | |4000×2200—400 m |
|Flood discharge|Desilting of TCMH bond |Treatment area of 4393 m2；desilting amount of 6600 m3；side slope revetment area |
|ditch project | |of 670m2；450 m3 of stone for raising the overflow dam；vegetation restoration |
| | |area of 400 m2 |
| |Desilting of Camel Ridge pond |Treatment area of 10311 m2；desilting amount of 16000 m3；side slope revetment |
| | |area of 900m2； 620m3 of stone for raising the overflow dam；vegetation |
| | |restoration area of 600 m2 |
| |Three flood discharge ditches |Broadening and desilting of ditches and ponds and repairing of damaged drainage |
| |in Langanqiao drainage system |ditch section, construction of additional low overflow weir with discharge holes |
| |One mountain foot flood |at the bottom. Treatment length of 1680 m |
| |discharge ditch in Zhuangzi | |
| |drainage system | |
|Storm drainage |Construction of Lizuizi pumping|Catchment area of 80.4ha；pumping flow of m3/s；Main buildings cover head gate, |
|pumping station|station |front pool and intake pool, pump house, pressure water tank, dyke-crossing culvert|
|project | |and discharge channel. |
| |Expansion of Xinzhuangzi |Catchment area of 437.9ha；pumping flow of 13.57 m3/s；Main buildings cover head |
| |pumping station |gate, front pool and intake pool, pump house, pressure water tank and so on. |
|Grain and |Road building： |Rd section |Length |Width of | Area |Plot | Use of road |
|edible oil |Weiyi Rd, Weier Rd.,Weisan Rd, | | |building | |area | |
|processing base|Weisi Rd, Changsheng Rd, Fuqian| | |line | | | |
| |Avenue and Jiankang Rd will be| | | | | | |
| |built with a total length of | | | | | | |
| |8580m. | | | | | | |
| | | | | | | | |
| | |Fuqian |1850 |38 |70300 |105.5 | Urban life |
| | |Avenue | | | | | |
| | | Weiyi Rd |1100 |25 |27500 |41.3 |Sec. trunk road in the |
| | | | | | | |Park |
| | |Weier Rd |1100 |30 |33000 |49.5 |Sec. trunk road in the |
| | | | | | | |Park |
| | | Weisan Rd |1080 |20 |21600 |32.4 |Sec. trunk road in the |
| | | | | | | |Park |
| | | Weisi Rd |1050 |25 |26250 |39.4 |Branch road in the Park |
| | |Changsheng |1300 |20 |26000 |39.0 | Branch road in the Park |
| | |Rd | | | | | |
| | |Jiankang Rd |1100 |36 |39600 |59.4 |Sec. trunk road in the |
| | | | | | | |city |
| | |Traveling speed of 40 km/h for secondary trunk road of Class II in the city and 30|
| | |km/h for urban branch road of Class II； |
| | |Lane width：two-way four-lane road；clear height of traveling lane：not less than |
| | |5.5m； |
| | |Clear height of non-motor vehicle and sidewalk：not less than 3.5m |
| |Storm water pipe network |Design flow of 4.80m3/s, the section of the main pipe at the exit of the system is|
| |project： |d1800m and the pipe will go through Jiankangshan Rd and join the storm drainage |
| |Catchment area of 100 ha for |system in the paper mill area. The storm and sewage pipe network will be laid |
| |the grain and edible oil |along the supportive road. |
| |processing base |D800—3940 m；D900—578m；D1000—1419m； |
| |（including urban road ） |D1200—1512m；D1500—266m；D1800—509m； |
8. Wuhe County Mohekou Integrated Environment Improvement Project
Table 28: Project Quantities of Mohekou Project
|Name of project |Content |Capacity |Quantities |
|Dredging of the |Wuxiaojie storm drainage |Design flow of 50 m3/s and total installed |Excavation volume of |
|Sanpu Canal, |pumping station and supportive|capacity of 6250KW |554265m3 for the |
|Sanpuhu storm |works | |foundation pit |
|drainage PS and | | | |
|supportive | | | |
|buildings | | | |
| |Dredging of canal and |Sanpu canal：①from Wubeng highway to the |Excavation volume of |
| |supportive buildings |entrance to Mochong approach river with a length|123,500 m3 for Sanpu |
| | |of 3.80k, design ditch bottom width of 17.0m, |canal； |
| | |side slope of 1:2, base elevation of |Excavation volume of |
| | |12.0m；②from the junction of Mochong approach |327,100 m3 for Mochong |
| | |river and Sanpu canal to Sanpuhu storm drainage |approach river canal |
| | |station with a length of 0.6km, design ditch | |
| | |bottom width of 27.0m, side slope of 1:2 and | |
| | |ditch base elevation of 12.0m. | |
| | |Mochong approach river：① from Duanzhuang gate | |
| | |to Songwei Rd with a length of 3.6km, design | |
| | |ditch bottom width of 8.0m, side slope of 1:2 | |
| | |and base elevation of 12.0m；② From Songwei Rd | |
| | |to Sanpu canal with a length of 4.02km, design | |
| | |ditch bottom width of 15.0m, side slope of 1:2 | |
| | |and base elevation of 12.0m. | |
| | |Six supportive bridges will be built. | |
|Surface water |Factory area works |Near-term capacity of 30,000m3/d and long-term | |
|plant | |capacity of 100,000 m3/d | |
| |Supportive water |Main water supply pipes will be laid along Hanmo| |
| |supply pipe network |Rd and Wubeng Rd. DN200：505 | |
| | |m；DN300：5991m；DN400：4313m；DN500：400m；DN60| |
| | |0：674m；DN700：2364m. | |
| |Water intake pipe network |Two d700 steel cylinder reinforced concrete bars| |
| |project |with a single pipe length of 17km | |
|Sewage treatment |Factory area works |20,000m3/d for the near-term and 60,000 m3/d | |
|plant | |for the long-term | |
| |Supportive drainage |DN300：8990m；DN400：4535m；DN500：1615m；DN600 | |
| |pipe network project |：3835m；DN800：595m；DN1000：2370m；DN1000：180| |
| | |0m | |
|Road building in |Yinhexi Rd |2000m×9m | |
|Mohekou town and | | | |
|Industry Park | | | |
| |Hongmiao Rd |2000×7m | |
| |Jingyi Rd |2200×9m | |
| |Zhongxin Rd |2100×7m | |
| |Yimin Rd |2600×7m | |
| |Yinhenan Rd |2000×7m | |
3. Analysis of Project Pollution Sources
1. Construction Period
The factors that affect water environment are the wastewater from construction works, seepage water from the foundation pit and desilting, and domestic water from construction workers.
The main elements that influence the atmospheric environment comprise floating dust, waste gas from fuel and odor from the sediment stack yard. The influence distance of the construction stackyard is 150m while that of road and floating dust is 35~40m. The odour emitted in pond desilting and transport of sediment will exert a great effect upon the environment. In this project dredging and excavation of ditches and ponds will give off a strong odour；it will reach an intensity of Class II beyond 30 m with a slight odor, lower than the limit level of odor intensity （Class 2.5-3.5）and largely odorless beyond 50 m.
The effect on the acoustic environment is exerted by the construction machinery and vehicles to and fro. If the outgoing noise at the boundary of construction site meets the standard of Noise Limits for Construction Site, the diurnal average noise influence distance during the construction period is 100m, but it will reach 350m in the pile driving stage.
The contaminated silt cleaned from the surface is carried to the sanitary landfill and filled there and the intermediate and bottom layer of the dredged silt can be utilized for afforestation and depression treatment. Before reutilization the sediment should undergo soil environmental and quality monitoring section by section. The building waste should be removed in time and the construction site should be cleaned when work is over. Stacking in situ is strictly prohibited.
The effect upon ecological environment is revealed in such aspects as land acquisition, soil erosion and influence on living things.
2. Operation Period
1. WTP Project
In the operation period the main pollution source comprises solid wastes （including sludge and domestic garbage）, noise from the pump house and domestic sewage in the factory area.
The main pollutants in the domestic sewage in the water purification plant cover SS, BOD5, ammonia nitrogen, phosphate, COD and animal and plant oil.
The desilted sewage produced in the sedimentation tank and anti-flush sewage produced in the anti-flush filter are discharged into the newly-built sludge concentration tank in the factory area completely （moisture content of 99%） and the condensed sludge （moisture content of 97%） will be turned into sludge cake after dewatering through the press filter in the dewaterer room （moisture content of 80%）before shipment while the supernatant of the sludge and the filtrate in the dewaterer room are returned to the absorption well for mixed treatment with the source water.
In the normal operation of the water purification plant no waste gas will be produced and only in abnormal condition will the chlorine cylinder leak.
In the water purification plant mechanical noise will come from the blower room and pump house respectively. The noise source level is 80~90 dB(A).
Solid waste mainly includes domestic garbage from workers and staff, production sludge and packing materials for dosing.
2. WWTP Project
During the operation period of the sewage treatment plant the main pollution source comprises solid wastes （including residual sludge, grille slags and sand）, noise, domestic sewage in the factory area and odor.
Wastewater includes tail water discharged from the sewage treatment plant and domestic water in the factory area. The latter is directly discharged into the admission pumping station.
The odor emission facilities in the sewage treatment plant mainly cover the grille, admission pumping station, sand tank, bio-reaction tank, sludge concentration tank and sludge dewaterer room. In most cases unorganized emission is adopted. The characteristic odorous pollutants are H2S and NH3.
The major noise source in the sewage treatment plant is the mechanical powe-operated equipment like pumps and blowers.
Of the solid waste, coarse grille slag, fine grille slag and sand are produced in a small quantity and the major solid waste is the mud cake, which is made of residual sludge discharged from the secondary settling tank after concentration and dewatering.
3. Roads
After the roads in the Industry Park are open to traffic, the main pollution comes from the tail gas emitted from cars, noise made by the vehicles to and fro and pollution caused by storm runoff on the road surface.
After the road is built, the main atmospheric pollutant is tail gas from cars, which is mainly composed of hydrocarbons, NOx and CO. The spread of pollutants produced by the tail gas in the air will affect the atomospheric environment along the road. Its scope of influence is also related to the wind velocity, direction, air pressure and stability in the area apart from the traffic volume.
The effect of traffic noise is featured by linear pollution, continuity and phase and its scope of influence is related to traffic volume, current noise conditions and the standards of diurnal and nocturnal sound environment.
The pollutant concentration and discharge volume in the road storm water have something to do with the flow and type of motor vehicles in travel, rainfall intensity, cycle, road quality and fuel property, which is difficult to estimate as a rule. By analogy it is known that the pollutant concentration in the road storm water will experience a change from high to low value and will be decreased progressively after reaching the maximum value in 0～15 minutes and incline to be steady one hour after the rainfall.
4. Storm Drainage Pumping Stations
In this project the solid waste is divided into two parts, namely, production waste and domestic garbage from workers and staff. In the operation of storm drainage station a given quantity of waste residue will be generated as pollutant grille and cleaning device are mounted at the admission inlet to intercept leaves, branches, waterweeds, fiber, rubber, plastics and other solid floatage in the current.
6. Investigation & Assessment for the Current Situation of Project Sites
To get a full understanding of the status quo of environmental quality at the project construction site, in this environmental impact evaluation, full use is made of routine monitored data available while special project monitoring is carried out for the content of the project and major environmental factors.
1. Air Quality
1. Bengbu Urban Area
In this environmental evaluation report for the status quo of the air quality, routine monitored air data provided by the environmental monitoring station is chiefly used and for special points, historical monitored data are selected for reference.
1. Routine monitoring results of the urban area
In Bengbu city, there are three sites for air quality monitoring at theWorker’s Sanatorium, Department Store Building and No.2 Water Works monitoring point, which represents the environmental quality of the cultural and educational area, mixed business and living area and industrial area respectively and the environmental assessment will make an evaluation of the overall air quality of the urban area in Bengbu in line with the monitored data in the Report of Environmental Quality in Bengbu in 2005.
Table 29: Statistics of Monitored Data on Air Quality in Bengbu in 2005
Unit:mg/m3
|Mornitoring Item |Worker‘s Sanatorium|Department Store |No.2 Water Works |Average of the City|
|Mornitoring Site | | | | |
|Sulfur dioxide Class |Scope of monitored |0.022～0.045 |0.013～0.029 |0.027～0.062 |0.023～0.042 |
|II Standard Value |value | | | | |
|Annual mean 0.06 | | | | | |
| |Excess standard rate % |0 |0 |0 |0 |
| |Annual mean |0.034 |0.021 |0.047 |0.034 |
|Nitrogen dioxide |Scope of monitored |0.029～0.043 |0.029～0.061 |0.043～0.062 |0.036～0.052 |
|Class II Standard |value | | | | |
|Annual mean | | | | | |
|0.08 | | | | | |
| |Excess standard rate % |0 |0 |0 |0 |
| |Annual mean |0.036 |0.040 |0.052 |0.043 |
|Inhaleable particles |Scope of monitored |0.054～0.082 |0.052～0.067 |0.058～0.089 |0.055～0.079 |
|Class II Standard |value | | | | |
|Annual mean 0.10 | | | | | |
| |Excess standard rate % |1.6 |0.6 |2.8 |1.6 |
| |Annual mean |0.069 |0.062 |0.079 |0.070 |
Table 30: Statistics of Comprehensive Pollutant Indicators of Major Pollutants at Each Monitoring Site in 2005
|Site |Worker‘s Sanatorium |Department Store |No.2 Water Works |
| | | | |
| | | | |
|Item | | | |
| |Pollution Load |Pollution Load |Pollution Load |Pollution Load |Pollution Load |Pollution Load |
| |Sub-index |Factor |Sub-index |Factor |Sub-index |Factor |
|Sulfur dioxide |0.57 |0.33 |0.35 |0.24 |0.78 |0.36 |
|Nitrogen dioxide |0.45 |0.26 |0.50 |0.34 |0.62 |0.28 |
|Inhaleable particles |0.69 |0.40 |0.62 |0.42 |0.79 |0.36 |
|Comprehensive |1.71 |1.47 |2.19 |
|Pollutant Indicators | | | |
It can be seen from the above table that the annual mean of air quality in Bengbu city has met the standard for Class II in the Ambient Air Quality Standard, of which sulfur dioxide has not exceeded the standard, but nitrogen dioxide and inhaleable particles have exceeded the standard, especially the inhaleable particles have exceeded the standard greatly and concentrated in the fourth quarter, which is somewhat related to the dust precipitation intensity and heating by firing coal in winter in Bengbu area. Of the air quality indicators nitrogen dioxide exceeded the standard to a less extent, but the stipulated standard has been exceeded all the year round, indicating the tail gas pollution from the traffic has become a glaring problem day by day and it is necessary to intensify management and control over the pollution by road traffic and tail gas.
2. Historical Monitoring Data For Tianhe Lake
For the routine air quality monitoring around Tianhe there are two sites, one is near Laoguanxu at Heihu Mount and the other is in the Tianhe Fishery. The indicators cover TSP, PM10, SO2 and NO2.
Current situation of air quality on the construction site is evaluated by the single factor index method.
[pic]
Where Ci——Daily or annual mean concentration of a given pollutant
Si—— Daily or annual mean concentration standard of a given pollutant
Pi——Sub-index of a given pollutant
For monitoring results and assessment, refer to the following table.
Table 31: Air Quality Monitoring and Assessment around Tianhe in 2005
Unit：mg/m3
|Item |Laoguanxu at Heihu Mount |Tianhe Fishery |(GB3095-1996) |
| | | |Class II, daily mean |
| |Scope of monitored |Daily mean |Single |Scope of monitored |Daily mean |Single factor| |
| |value | |factor index|value | |index Pi | |
| | | |Pi | | | | |
|SO2 |0.005~0.095 |0.017 |0.11 |0.005~0.054 |0.010 |0.07 |0.15 |
|NO2 |0.005~0.098 |0.035 |0.29 |0.011~0.094 |0.043 |0.36 |0.12 |
|PM10 |0.044~0.217 |0.121 |0.81 |0.034~0.087 |0.053 |0.35 |0.15 |
|TSP |0.099~0.404 |0.241 |0.80 |0.069~0.122 |0.081 |0.27 |0.30 |
It can be seen from the above statistics that air quality in Tianhe area and its northern hilly land is good and can meet the standard for Class II set out in GB3095-1996----Ambient Air Quality Standard, of which air quality around Tianhe is more superior to that in Heihu Mount area, which mainly benefits from the dust precipitation in the Tianhe water area；The atomospheric pollution indicators near Heihu Mount are based on PM10 and TSP primarily, indicating air quality in the area is affected by the floating dust seriously, which is closely related to the bared rock, thinned vegetation and soil erosion due to quarrying in the Heihu Mount.
2. Monitoring Data of Three Counties
As no routine air monitoring points are available in the three counties of Huaiyuan, Guzhen and Wuhe, historical monitored data provided by the local environmental protection bureau are used in this environmental evaluation.
1. Wuhe County
（1）Establishment of monitoring sites
The prevailing wind direction in Bengbu all the year round is the north-east wind by east. In this evaluation three air sampling and monitoring sites are to be set up in line with the zoning of regional environmental functions, meteorological conditions and Class of air quality assessment for the construction project.
（2）Monitoring items
TSP, SO2 and NO2 are the items to be monitored in this evaluation.
（3）Monitoring frequency and method
From June 26 to 30, 2006, Bengbu City Environmental Monitoring Station conducted air quality monitoring in the locality for five days running and simultaneously monitored meteoroloigical parameters. Of these SO2 and NO2 were sampled for not less than 18 hours each day and TSP was sampled for not less than 12 hours each day. The atmospheric sampling method followed the Technical Specifications of Environmental Monitoring （Part of Atmosphere）For meteorological paramenters under atmospheric monitoring, refer to the table below.
Table 32: Record of Meteorological Parameters for Air Quality Monitoring for Wuhe Project
|Date |Temperature（℃） |Atomospheric |Wind direction |Velocity （m/s） |
| | |pressure（Hpa） | | |
|Jun.26, 2006 |18.8 |1003.1 |EN |4.5 |
|Jun.27, 2006 |20.8 |1003.2 |WN |4.0 |
|Jun.28, 2006 |20.8 |1004.2 |WN |4.9 |
|Jun.29, 2006 |24.4 |1002.1 |WS |1.5 |
|Jun.30, 2006 |28.0 |1001.5 |WS |1.4 |
（4）Monitoring results
Analytical method adopted that specified in Table 2 of the Ambient Air Quality Standard（GB3095-1996）. Results are shown in the following table.
Table 33: Statistics of Air Quality Monitoring for the Wuhe Project
|Sampling location |Monitored on |SO2 |NO2 |TSP |
|By 1# Sanpu ditch |Jun.26, 2006 |0.009 |0.006 |0.042 |
|and expressway | | | | |
| |Jun.27, 2006 |＜0.005 |0.022 |0.046 |
| |Jun.28, 2006 |0.006 |0.009 |0.177 |
| |Jun.29, 2006 |＜0.005 |0.009 |0.084 |
| |Jun.30, 2006 |＜0.005 |0.068 |0.212 |
|2# Xiaolizhuang |Jun.26, 2006 |＜0.005 |0.010 |0.022 |
| |Jun.27, 2006 |＜0.005 |0.010 |0.100 |
| |Jun.28, 2006 |＜0.005 |0.014 |0.140 |
| |Jun.29, 2006 |＜0.005 |0.014 |0.361 |
| |Jun.30, 2006 |＜0.005 |0.027 |0.079 |
|3# Zhujia |Jun.26, 2006 |＜0.005 |0.029 |0.066 |
| |Jun.27, 2006 |0.029 |0.010 |0.170 |
| |Jun.28, 2006 |＜0.005 |0.035 |0.110 |
| |Jun.29, 2006 |＜0.005 |0.026 |0.102 |
| |Jun.30, 2006 |＜0.005 |＜0.003 |0.095 |
（5）Evaluation results
For evaluation results of air quality around the construction site of Wuhe county project, refer to the following table.
Table 34: Results of Air Quality Assessment
|Sampling |Monitored on |Identification index Ii |Identification index Ii |Identification index Ii |
|location | |(SO2) |(NO2) |(TSP) |
|By 1# Sanpu ditch |Jun.26, 2006 |0.06 |0.05 |0.14 |
|and expressway | | | | |
| |Jun.27, 2006 |0.03 |0.18 |0.15 |
| |Jun.28, 2006 |0.04 |0.08 |0.59 |
| |Jun.29, 2006 |0.03 |0.08 |0.28 |
| |Jun.30, 2006 |0.03 |0.57 |0.71 |
|2# Xiaolizhuang |Jun.26, 2006 |0.03 |0.08 |0.07 |
| |Jun.27, 2006 |0.03 |0.08 |0.33 |
| |Jun.28, 2006 |0.03 |0.12 |0.47 |
| |Jun.29, 2006 |0.03 |0.12 |1.20 |
| |Jun.30, 2006 |0.03 |0.23 |0.26 |
|3# Zhujia |Jun.26, 2006 |0.03 |0.24 |0.22 |
| |Jun.27, 2006 |0.19 |0.08 |0.57 |
| |Jun.28, 2006 |0.03 |0.29 |0.37 |
| |Jun.29, 2006 |0.03 |0.22 |0.34 |
| |Jun.30, 2006 |0.03 |0.03 |0.32 |
It can be seen from the above table that except for TSP that exceeded the standard once on June 29 at 2# site, the factor of pollutant evaluation at the monitoring site is less than 1. Overall it is thought that the current situation of air quality for the project complies with Class II standard of GB3095-1996.
2. Huaiyuan County
In the present environmental evaluation，the current situation of regional environmental quality in the Huaiyuan county seat is assessed in line with the routine monitored data provided by Huaiyuan County Environmental Protection Bureau.
（1）Monitoring site: The monitoring site of atmospheric environment is located in the new county government yard.
（2）Monitoring items: TSP, SO2 and NO2.
（3）Results of monitoring and assessment
Table 34 shows the routine monitored data and results of assessment at the monitoring site.
Table 35: Results of Air Quality Assessment
| |TSP( mg/m3) |SO2( mg/m3) |NO2( mg/m3) |
|Monitored data（daily mean） |0.169 |0.005 |0.017 |
|Central urban area（Class ⅡArea）Ii |0.56 |0.33 |0.14 |
|Cereal & edible oil processing base （Class ⅢArea）Ii |0.34 |0.02 |0.14 |
|Jingshan area （Class ⅠArea）Ii |1.4 |0.1 |0.21 |
From the monitoring data above it can be seen that the TSP, SO2 and NO2 concentrations of the central urban area and the Food Processing Park of Huaiyuan in 2004 has reached the control requirements of the functional zones; The SO2 and NO2 concentrations of Jingshan Area are compliant with the requirements of functional zones, but the TSP concentration could not meet the requirement, which is related to the rock exposure and soil erosion due to the destroy of ground surface vegetation for mountain exploitation activities.
2. Surface water quality
In evaluating the status quo of surface water environment at the project construction site, the monitored data to be used come from the three channels as follows:
（1）For lakes and rivers with functions of water body, routine monitored data provided by the environmental protection bureau are used without exception;
（2）For the rivercourse and water body without routine monitored data, historical monitored data provided by the environmental protection bureau are used;
（3）For ditches and canals with neither routine monitored data nor historical monitored information, special monitoring will be conducted in line with the actual requirements.
1. Evaluation methods
Surface water quality is evaluated by using the single standard index formula as follows：
Si,j=Ci,j/Csi
Where Ci,j――Monitoring value of pollutant i at site j,mg/L；
Csi――Limited value of pollutant i for evaluation standard, mg/L；
Si,j――Standard index of pollutant i.
Standard index of DO： [pic]
[pic]
Where SDOj――standard index of DO；
DOf――concentration of saturated dissolved oxygen at a given water temperature and atmospheric pressure,mg/L；
DOj――monitored value of dissolved oxygen,mg/L；
DOs――Limited value of dissolved oxygen for evaluation standard,mg/L。
Standard index of pH： [pic]
[pic]
Where SpHj――standard index of pH；
pHj――monitored value of pH；
pHsd――lower range value of pH in the evaluation standard；
pHsu――upper range value of pH in the evaluation standard.
2. Current Situation of Water Quality in the Major Rivers
1. Huaihe River
Water quality in the Huaihe River around the construction site is evaluated in line with the results of routine water quality monitored sections in 2006 offered by Bengbu City Environmental Monitoring Station.
Monitored sections：section below the Bengbu sluice in the Bengpu section of the Huaihe River；section below the Xintie Bridge in the Bengpu section of the Huaihe River and monitored section at the Mohe river mouth.
Monitored indicators：pH value, DO, permanganate index, BOD5, ammonia nitrogen, petroleum, volatile phenols, chemical oxygen demand, Fecal coliform and E. coli, phosphate and nitrogen.
Monitoring results are shown in the table below.
Table 36: Results of Routine Water Quality Monitoring in the Huaihe River
Unit：mg/L（except pH）
|Indicator |Section below Bengbu sluice |Section below Xintie bridge |Section at Mohe river mouth |GB3838-2002 |
| | | | |Class Ⅲ |
| |Max. |Min. |Mean |
|pH |0.36 |0.36 |0.36 |
|DO |0.59 |0.77 |0.74 |
|Index of permanganate |0.66 |0.69 |0.69 |
|BOD5 |0.62 |0.71 |0.72 |
|Ammonia nitrogen |0.91 |1.05 |1.05 |
|Petroleum |0.20 |0.20 |0.20 |
|Volatile phenols |0.20 |0.30 |0.26 |
|Chemical oxygen demand |0.91 |0.98 |0.93 |
|Fecal coliform and E coli |0.54 |10.03 |9.77 |
|Phosphate |0.70 |0.79 |0.82 |
|Nitrogen |2.15 |2.61 |2.40 |
It can be seen from the table that in 2006 nitrogen for the whole Bengbu section of the Huaihe River exceeded the standard by 1.15~1.61 folds. The Fecal coliform and E. coli for Xintie bridge and Mohe river mouth sections exceeded the standard by 8.77~9.03 folds. Ammonia nitrogen for the Xintie Bridge and Mohe River mouth sections exceeded the standard slightly by 0.05 fold. The annual mean of other indicators can meet the requirements for Class III in the Environmental Quality Standards for Surface Water (GB3838-2002).
2. Tianhe River
The routine monitored data on the water quality in the Tianhe River in 2006 provided by Bengbu City Environmental Monitoring Station are shown in the table below.
Table 38: Routine monitoring of water quality in Tianhe River in 2006
Unit：mg/L (except pH)
|Indicator |pH |DO |CODMn |BOD5 |Ammonia |Phosphate |Nitrogen |
| | | | | |nitrogen | | |
|Guo Sanqiao |2006.2.18 |11.0 |7 |8.30 |8.40 |9.97 | |
| |2006.3.6 | | |8.5 |11.34 |17.86 | |
| |2005.12.8 | | | | |3.61 |7.00 |
| |2005.12.7 | | | | |2.71 |6.57 |
| |2005.10.9 |7.2 |21 |7.98 | |1.10 |5.9 |
|Mean |9.1 |14 |8.26 |9.87 |7.05 |6.49 |
|Standard for Class Ⅳ In |≥3 | |6～9 |≤10 |≤1.5 |≤40 |
|GB3838-2002 | | | | | | |
Water quality of Guo River is evaluated by using the single standard index formula based on the mean of Guo River water quality within the moniotoring time set out in Table 5-2-7 and the results are indicated in the following table.
Table 43: Single factor evaluation of water quality in Guo River
|Sampled site |Dissolved oxygen |pH |Index of permanganate |Ammonia nitrogen |CODMn |
|Guohe Sanqiao |0.16 |0.63 |0.987 |4.7 |0.16 |
Calculation shows that the standard indicators of dissolved oxygen, DO, pH and permanganate index are less than 1, indicating that none of these water quality parameters has exceeded the standard, which meets the requirements for functional use and complies with the standard for Class Ⅳ in the Environmental Quality Standards for Surface Water (GB3838-2002). The standard indicator of ammonia nitrogen is greater than 1, indicating the water quality parameter has exceeded the stipulated standard and can no longer meet the requirement for use.
3. Hui River
As required by the zoning of water environmental functions, Guzhen section of Hui River shall follow the water quality standard for Class Ⅳ in the Environmental Quality Standards for Surface Water（GB 3838-2002）.
Statistics of water quality monitoring in Guzhen section of Hui River from 2001～2005 showed that during these five years the four pollutant indicators of mercury, lead, volatile phenols and petroleum were below the detection limit and no sample that exceeded the standard was found for pH whereas the permanganate index, dissolved oxygen, biochemical oxygen demand and ammonia nitrogen exceeded the standard to varying degree between years.
Table 44: Monitoring results in Guzhen section of Hui River during 2001～2005
Unit：mg/L（pH dimensionless）
|Year |Item |
| |pH |Dissolved oxygen |Index of permanganate |Ammonia |COD |
| | | | |nitrogen | |
|2005.3.24 |8.70 |10.26 |4.08 |0.450 |13.1 |
|2005.11.20 |8.52 |9.75 |4.23 |0.426 |12.4 |
|2006.2.26 |8.46 |11.60 |3.86 |0.532 |10.6 |
|2006.11.9 |8.18 |8.05 |4.31 |0.245 |— |
|Class III, GB3838-2002 |6~9 |≥5 |≤6 |≤1 |≤20 |
Water quality in Huaihongxin River is evaluated by using the single standard index formula based on the monitored mean of water quality set out in Table 45 and the results are indicated in Table 46.
Table 47: Single Factor Evaluation of Water Quality in Huaihongxin River
|pH |Dissolved oxygen |Index of permanganate |Ammonia nitrogen |Chemical oxygen demand |
|0.85 |0.05 |0.68 |0.45 |0.66 |
|0.76 |0.14 |0.71 |0.43 |0.62 |
|0.73 |0.20 |0.64 |0.53 |0.53 |
|0.59 |0.45 |0.72 |0.25 |— |
3. Water Quality of Canals and Ditches in the Urban Area
1. Xijiagou Canal
The concentratrion of major pollutants in the outlet to the Huaihe River from Xijiagou in 2006 provided by Bengbu Monitoring Station is shown in the Table 47.
Table 48: Monitoring Results of Water Quality in Xijiagou
Unit：mg/L（pH dimensionless）
| |Jan |Feb. |
|0.19 |4.10 |3.29 |
2. Sanpu Great Ditch
For monitoring of Sanpudagou surface water, two sections are to be set up （500 m in the upper reaches of the outlet of Sanpudagou to the Huaihe river and before the discharge outlet of Sanpudagou joins the Huaihe River） and monitoring was done on June 15 and 16, 2006 for two days running , once a day. The results are shown in the table below.
Table 50: Results of sanpudagou water quality monitoring
Unit：mg/L（pH dimensionless）
|Mornitoring Item |Monitored on |pH |COD |Ammonia nitrogen|Index of |BOD5 |Water temperature|
|Monitoring section | | | | |permanganate | | |
| |2006.6.16 |7.36 |12.1 |0.164 |3.81 |2.28 |22.7 |
|②before the discharge |2006.6.15 |7.61 |24.4 |0.278 |7.96 |5.88 |23.2 |
|outlet of Sanpudagou | | | | | | | |
|joins the Huaihe River| | | | | | | |
| |2006.6.16 |7.56 |23.2 |0.279 |7.91 |5.72 |23.6 |
|Class Ⅲ, GB3838-2002 |6~9 |≤20 |≤1.0 |≤6 |≤4 | |
Water quality in Sanpudagou is evaluated by using the single standard index formula based on the mean of Sanpudagou water quality set out in Table 49 and the results are indicated in Table 50.
Table 51: Single factor evaluation of sanpudagou water quality
| Mornitoring Item |pH |COD |Ammonia | Index of |BOD5 |
|Monitoring section | | |nitrogen |permanganate | |
|① 500 m in the upper reaches of the|0.175 |0.61 |0.165 |0.63 |0.57 |
|outlet of Sanpudagou to the Huaihe | | | | | |
|river | | | | | |
|② before the discharge outlet of |0.295 |1.19 |0.28 |1.325 |1.45 |
|Sanpudagou joins the Huaihe River | | | | | |
The section water quality 500 m in the upper reaches of the outlet of Sanpudagou to the Huaihe river reached the standard for Grade III in the Environmental Quality Standards for Surface Water （GB3838-2002）. The water quality before the discharge outlet of Sanpudagou joins the Huaihe Rive failed to reach the standard for Grade III, but reached the standard for Grade IV in the Environmental Quality Standards for Surface Water （GB3838-2002）.
3. Ponds in Huaiyuan
Bengbu City Environmental Monitoring Station monitored water quality in the pond east of Huanchengxi Road in Huaiyuan County on March 5, 2007 and the results are shown in the table below.
Table 52: Water quality monitoring in Huaiyuan pond
Unit：mg/L（pH dimensionless）
|Monitored date |Detection items |
| |pH |Dissolved oxygen |Index of |Biochemical |Ammonia |Phosphate |Petroleum |
| | | |permanganate |oxygen demand |nitrogen | | |
|0.74 |0.29 |0.765 |0.142 |0.594 |2 |/ |/ |
4. Zhanggongshan Pond
Bengbu City Environmental Monitoring Station monitored water quality in the south, middle and north of Zhanggong Mount pond on April 6 and October 20, 2006 and the results are shown in the following table.
Table 54: Monitoring of water quality in Zhanggong Mount Pond
Unit：mg/L（pH dimensionless）
|Indicator |South of Zhanggong Mount |Middle of Zhanggong Mount |North of Zhanggong Mount |
| |4.6 |
| |NH3-N |
| |NH3-N |NO2-N |
|Huaishang District |50.7～66.7 |53.4 |
|High-Tech Industry Zone |50.2～71.7 |57.7 |
|Longzihu District |43.6～68.3 |55.4 |
|Yuhui District |51.3～67.1 |58.0 |
|Bengshan District |50.7～67.3 |60.5 |
It is clear from the table that the mean of noise pollution in Bengbu can basically meet the acoustic environment standard for Grade II, but the existing noise pollution exceeded the standard significantly, especially the noise pollution on both sides of the road exceeded the standard more significantly. Huaishang district and Longzihu district under the jurisdiction of the city had relatively good acoustic environment；Bengshan district had noise pollution exceeding the standard significantly as it is an old urban area with dense population, narrow streets and heavy traffic. In the New & Hi-tech Park noise pollution differs much: the non-built district has low-level noise pollution while the main road experiences serious noise pollution.
5. Road traffic noise
Below is the monitoring result of road traffic noise pollution in the urban area of Bengbu.
Table 58: Monitored data on road traffic noise pollution in 2006 in Bengbu
Unit: dB(A)
|Serial |Description |Section length m |Section width, m |Traffic volume vehicle/h|Noise level, dB(A) |
|No. | | | | | |
|1 |Jiefang 2 Rd. |1800 |28 |983 |71.9 |
|2 |Huaihe Rd. |4420 |28 |1441 |71.3 |
|3 |Zhihuai Rd. |4400 |33 |1252 |70.2 |
|4 |Gongnong Rd. |5120 |30 |1606 |69.3 |
|5 |Chaoyang Rd. |6512 |45 |1203 |69.2 |
|6 |Fengyang Rd. |5270 |33 |1154 |68.9 |
|7 |Tushan Rd. |9540 |45 |1132 |68.3 |
|8 |Jiefang Rd. |8405 |42 |812 |67.9 |
|9 |Shengli Rd. |21890 |40 |1026 |66.8 |
|10 |Hanghua Rd. |1000 |25 |309 |66.2 |
|11 |Yanshan Rd. |8550 |45 |428 |66.0 |
|12 |Hongye Rd. |2840 |30 |583 |65.9 |
|13 |Donghai Ave. |21270 |58 |964 |65.8 |
|14 |Yan’an Rd. |6382 |35 |1249 |65.5 |
|15 |Huaguang Ave. |3700 |50 |724 |65.4 |
|16 |Daqing Rd. |4976 |45 |902 |61.3 |
From the monitoring results of road traffic noise pollution it is evident that roads located in the old urban area including Jiefang 2 Rd., Huaihe Rd., Zhihuai Rd., Gongnong Rd., Chaoyang Rd., Fengyang Rd. and Tushan Rd. experience serious noise pollution because fo heavey traffic. The newly-built roads including Donghai Ave., Huaguang Ave., Daqing Rd. and Yanshan Rd. with broad red line（more than 45m）have low-level noise pollution due to light traffic. Of the roads with the red line greater than 45m, only Tushan Rd. and Chaoyang Rd. witness heavy traffic and have a relatively-high level noise pollution because of crossing the main urban area. No doubt road traffic noise is closely related to the traffic volume.
4. Three Counties
As this project construction site financed by the World Bank loan is spread all over the urban districts of Bengbu and the three counties, the work is scattered and in order to get a full understanding of the status quo of the acoustic environmental quality, each sub-item has carried out special monitoring of the acoustic environment at the construction site.
1. Tianhe project
（1）Monitoring site
The Environmental Evaluation Committee entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring at the six sites along the bank of the Tianhe River.
Monitoring sites：1# on the bridge of Tianhe Sluice
2# In Tianhe Fishery in the north of Tianhe River
3# Near Qinji pumping station at the Qinji Village on the east bank of Tianhe River
4# Near Fengdong pumping station at Fengdong Village on the west bank of Tianhe River
5# Near Gaogengqian Village pumping station at the south section of Tianhe River
6# In Shixiang Village on the north side of Heihu Mountain
（2）Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（3）Monitoring results and evaluation
For monitoring results are shown in the following table.
Table 59: Results and evaluation of noise pollution monitoring around the construction Site
Unit:dB(A)
|Item |1# |2# |3# |4# |5# |6# |
|Day time monitored value |38.4 |40.1 |39.5 |40.9 |40.9 |44.7 |
|Night time monitored value |36.6 |37.4 |36.7 |37.6 |36.6 |39.8 |
|Standard for Grade I |Day time 55, Night time 45 |
Data on noise pollution monitoring at the construction site show in the periphery of Tianhe River and neighborhood of Heihu Mountain people have good acoustic environment and the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area is met.
2. Longzi Lake project
（1） Monitoring site
The evaluator entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring at the four sites along the bank of Loangzi Lake.
Monitoring sites：1# In the Happiness Village at Longheji on the east side of Zhengjiadu Sluice in the north of Longzi Lake
2# In Zhangtianjia Village on the east bank of Longzi Lake
3# In Xuqiaocun Village on the south bank of Longzi Lake
4# In the yard of Worker’s Sanatorium on the west bank of Longzi Lake
（2） Monitoring time
February of 2007
（3） Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and evaluation
The monitoring results are shown in the following table.
Table 60: Results of noise pollution monitoring around Longzi Lake
Unit：dB(A)
|Site |1# |2# |3# |4# |Grade I（GB3096-1993） |
|Day time |59.4 |47.5 |38.5 |49.7 |55 |
|Night time |44.4 |35.6 |31.5 |37.0 |45 |
From the results in the above table it can be seen that except for the noise pollution value at the site of Happiness village in the north of Longzi Lake exceeding the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area （GB3096-1993）, those at the other sites meet the standard for Grade I in the Measuring Method of Environmental Noise of Urban Area （GB3096-1993）. On the whole the periphery of Longzi Lake enjoys good acoustic environment. The outstanding noise pollution value at the site of Happiness Village is mainly attributed to the big noise made by the construction machinery at the entrance to the Happiness Village as a large construction project is just under way there.
3. Urban Infrastructure Sub-project
On Jan. 30th and 31st 2007, Bengbu Municipal Environmental Monitoring Station monitored the noise situation for the involved project areas. The monitoring results are shown in the table below.
Table 61: Noise Monitoring Results for the Area Related to Urban Infrastructure Sub-project
Unit: dB(A)
|Monitoring Point |Monitoring Results |GB3096-1993 Standard |
| |Daytime |Night |Daytime |Night |
|1# Centre of Longzi Lake Industrial Park (Longjin Rd.) |45.4 |47.8 |Class 3, 65 |Class 3, 55 |
|2# Crossing of Lilou Rd. and Donghai Ave. |60.7 |54.0 | | |
|3# Dingmiao Village |50.1 |49.7 | | |
|4# Centre of HTZ (Crossing of Huangshan Rd.and Daqing Rd.) |57.9 |51.3 | | |
|5# Crossing of Huangshan Rd. and Ying River |60.4 |52.9 | | |
|6# Xiaohuangshan Village |63.7 |52.4 | | |
|7# Crossing of East Shengli Rd. and Zhuizishan Rd. |62.0 |52.8 |Class 4, 70 |Class 4, 55 |
|8# Crossing of Nanhu Rd. and Xuehua Rd. |59.9 |54.9 | | |
|9# Crossing of No.2 Hongqi Rd. and West Surrounding Dyke |63.5 |53.1 | | |
|10# Crossing of Changzheng Rd. and Changle Rd. |65.7 |55.7 | | |
|11# Crossing of Daqing Rd. and Baligou Canal |65.8 |55.3 | | |
|12# Yinghu Rd. Storm Drainage PS |55.6 |51.3 | | |
|13# Zhihuai Rd. Storm Drainage PS |58.7 |52.5 | | |
|14# Nanshijia Storm Drainage PS |58.0 |54.5 | | |
|15# Xinchuantang Storm Drainage PS |60.0 |52.0 | | |
From the monitoring results it could be seen that the noise in the areas involved in the project could meet the standard requirements.
4. Xijiagou and Baligou project
（1）Monitoring site
The evaluator entrusts Bengbu City Environmental Monitoring Station with noise pollution monitoring along Baligou and Xijiagou.
Site：1# Intersection between Daqing 2 Rd. and Baligou
2# Intersection between Huangshan Rd. and Xijiagou
（2） Monitoring time
January 31, 2007
（3） Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and analysis
For monitoring results refer to the table below.
Table 62: Monitoring results of noise pollution around Baligou and Xijiagou
|Monitoring Site |Results Leq[dB(A)] |Grade II（GB3096-1993） |
| |Day time |Night time |Day time |Night time |
|1# |65.8 |55.3 |60 |50 |
|2# |60.4 |52.9 | | |
As the monitoring site is close to the urban main line of communication under the great influence of vehicles to and fro, the noise pollution value around the construction site exceeds the standard to different extent.
5. Huaishang District project
（1）Monitoring site
Bengbu City Environmental Monitoring Station monitored noise pollution at the three sites within the scope of the project. The three sites are Intersection between the planned Daqing Rd. North and Huaibei Land（Qijiadu Village）；Big ditch of 40 m（south of Xiaobengbu Storm Drainage Station near Huaibei Dyke）and Intersection between Wuxiaojie drainage and irrigation canal and Huaibei Land.
（2）Monitoring time
Day time：Jan. 30, 2007 15：05~16：04
Night time：Jan. 30, 2007 22：20~23：23
（3） Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and evaluation
For monitoring results refer to the table below.
Table 63: Monitoring results of urban noise pollution
|Monitoring Site |Equivalent sound level：Leq[dB(A)]|Standard to be followed |
| |Day time |Night time | |
|(1) Intersection between the planned Daqing Rd. North and Huaibei |46.0 |41.9 |Grade II, GB3096-93： |
|Land（Qijiadu Village） | | |Day time 60dB(A) |
| | | |Night time 50dB(A) |
|(2) Big ditch of 40 m（south of Xiaobengbu Storm Drainage Station |45.5 |42.6 | |
|near Huaibei Dyke） | | | |
|(3) Intersection between Wuxiaojie drainage and irrigation canal and|45.6 |41.4 | |
|Huaibei Land. | | | |
From the above table it is clear that the noise pollution value at each site meets the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （GB3096-93）.
6. Guzhen County project
（1）Monitoring sites
Noise pollution is specially monitored at the seven sites involved in the project,namely, site of the south station in Guzhen county（intersection between the Lao Street and Huihe Dyke）, Xiaoloucun, Qizhuang, No.1 Middle School East, No.1 Middle School West, Niushixiang Center and near Furniture Factory about 10 meters along the river embankment on the east side of Guxi Storm Drainage Station.
（2）Monitoring time
Feb. 1 to 2, 2007 and Feb. 14 to 15, 2007
（3）Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforaman should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and evaluation
In this monitoring each site should follow the Measuring Method of Environmental Noise of Urban Area（GB 3096-93）for Grade II. The current noise pollution monitoring results are shown in the table below.
Table 64: Special monitoring of noise pollution
Unit：Leq dB(A)
|Monitoring site |Day time noise |Night time noise |
|Site of south station in Guzhen county （intersection between the Lao Street |54.0 |51.6 |
|and Huihe Dyke） | | |
|In Xiaoloucun of Guzhen |45.2 |41.1 |
|In Qizhuang of Guzhen |42.6 |42.1 |
|No. 1 Middle School East in Guzhen county |47.2 |47.2 |
|No. 1 Middle School West in Guzhen county |43.8 |43.1 |
|Niushixiang Center in Guzhen county |54.4 |51.0 |
|Near the Furniture Factory about 10 meters along the river embankment on the |52.9 |38.5 |
|east side of Guxi Storm Drainage Station in Guzhen county. | | |
|GB 3096-93（Grade II） |60 |50 |
It is clear from the above table that the Night time noise pollution value at the monitoring site of Nieshixiang Center exceeded the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area（GB 3096-93） and the noise value at other sites met the standard with good acoustic environment. As no industrial enterprise exists near Niushixiang nor is there any noise pollution source including the construction project under way, the outstanding Night time noise pollution value at the site may be attributed to the instantaneous confused noise made by the residents. The acoustic environment involved in this project is basically good.
7. Huaiyuan County project
（1） Monitoring site
Bengbu City Environmental Monitoring Station conducted noise pollution monitoring respectively at the four sites, i.e., site of Lizuizi Pumping Station, intersection between Yuwang Rd. East and Wenchang Rd., site of Laoximen Pumping Station and about 40m to the east of Huancheng Rd.West and 100m to the south of Yuwang Rd. West.
（2）Monitoring time
February 1, 2007
（3）Monitoring method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and analysis
For monitoring results refer to the table below.
Table 65: Monitoring results of noise pollution in the Huaiyuan project
|Moniroring Site |Standard to be |Monitored value |Standard value |
| |followed | | |
| | |Day time |Night time |Day time |Night time |
|Site of Lizuizi Pumping Station |Standard for Grade |58.2 |48.1 |60 |50 |
| |II | | | | |
|Intersection between Yuwang Rd. East and |Standard for Grade |76.2 |62.5 |60 |50 |
|Wenchang Rd. |II | | | | |
|Site of Laoximen Pumping Station |Standard for Grade |47.1 |45.5 |65 |55 |
| |III | | | | |
|About 40m to the east of Huancheng Rd.West and |Standard for Grade |58.2 |48.5 |65 |55 |
|100m to the south of Yuwang Rd. West. |III | | | | |
It can be found from the above table that the background noise pollution value at the site of Lizuizi Pumping Station met the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （GB3096-93）；the background noise pollution values at the site of of Laoximen Pumping Station and about 40m to the east of Huancheng Rd.West and 100m to the south of Yuwang Rd. West met the standard for Grade III in the Measuring Method of Environmental Noise of Urban Area （GB3096-93） whereas the noise pollution value at the intersection between Yuwang Rd. East and Wenchang Rd. exceeded the standard for Grade II in the Measuring Method of Environmental Noise of Urban Area （GB3096-93）because it is located at the crossing between the main urban lines of communication under the great influence of traffic.
8. Mohekou of Wuhe County project
（1） Monitoring site
Bengbu City Environmental Monitoring Station monitored noise pollution at the four sites within the industry zone.
（2）Monitoring time
Each site was monitored once in the specified time.
Day time：Jan. 30, 2007 06：00~22：00
Night time：Jan. 30, 2007 22：00~06：00
（3） Monitoring frequency and method
Monitoring method：The provisions stipulated in GB/T 14623 Measuring Method of Environmental Noise of Urban Area and GB12349-90 Method of Measuring Noise at Boundary of Industrial Enterprises should be implemented. The measuring device is AWA6218B sound-level meter with precision of Class II and above and its perforamance should comply with the provisions in GB/3878-83 Method of Measuring of Electro-acoustic Performance of Sound-level Meter. The device should be calibrated before and after measurement, in which the microphone should be equipped with a hurricane globe.
（4）Monitoring results and analysis
For monitoring results refer to the table below.
Table 66: Monitoring Results of Urban Noise Pollution in Mohekou Industry Zone
|Site |Equivalent sound level：Leq[dB(A)] |Standard to be followed |
| |Day time |Night time | |
|(1) Wuhe Sanpu Middle School |44.9 |41.8 |Grade II, GB3096-93：Day time, 60dB(A), Night |
| | | |time, 50dB(A) |
|(2) Wuhe Mohekou Middle School |47.4 |39.4 | |
|(3) Wuhe Sanpu Canal Storm Drainage |45.4 |41.6 | |
|Pumping Station | | | |
|(4) Open space on the industrial |46.1 |38.1 |Grade III, GB3096-93：Day time, 65dB(A),Night |
|avenue in Wuhe Industry Zone | | |time, 55dB(A) |
Based on the above table, it can be seen that the noise pollution value at each site meets the corresponding requirements set out in the Measuring Method of Environmental Noise of Urban Area (GB3096-93).
3. Sediment Quality
As no routine monitored data on sediment and soil in Bengbu city are available, in this evaluation special monitoring of sediment is carried out more extensively in the urban districts of Bengbu and suburban counties. The main task is to make selections and fix up points for desilting and dredging of lakes, ponds, ditches and canals involved in the proposed construction projects. The aim is to keep them as the background monitored data on sediment and also know the composition and property of the sediment to be cleared for selection of a proper way of silt disposal.
The north lake of Longzi Lake was desilted in 2005, leaving some historical background monitored data on the sediment in Longzi Lake. On this basis some monitoring points for sediment are added up to carry out the background environmental monitoring of sediment in the Longzihu sub-item.
1. Tianhe Project
To obtain an elementary knowledge of the environmental quality of soil around Tianhe River and sediment in Tianhe River, in this environmental evaluation the Bengbu Environmental Monitoring Station is entrusted to carry out special monitoring of the soil and sediment around Tianhe River. The monitoring points are set up at the Tianhe sediment point and coastal soil point near the intake of the emergency water source in Qinji town respectively and for the monitoring results, refer to the table below.
Table 67: Monitoring Results of the Sediment and Coastal Soil in Tianhe River
Unit: mg/kg (organic matter, %)
|Indicator |Organic |Phosphate |Nitrogen |Arsenic |Lead |Mercury |Chromium |
| |matter | | | | | | |
|Sediment in Tianhe |0.92 |3.74 |18.86 |12.52 |37.10 |0.003 |37.1 |
|River | | | | | | | |
|Soil in the farmland |2.93 |9.12 |34.90 |10.90 |44.80 |0.018 |82.30 |
|around Tianhe river | | | | | | | |
|Paddy |— |— |— |25 |300 |0.50 |300 |
|Field | | | | | | | |
|Of Grade II, | | | | | | | |
|GB15618-1995 | | | | | | | |
|GB4284-84 |— |— |— |75 |1000 |15 |1000 |
|pH≥6.5 | | | | | | | |
|Background value of |— |— |— |8.5 |26.0 |0.029 |67.0 |
|soil in Anhui | | | | | | | |
|province | | | | | | | |
The evaluation standards of the soil and sediment in the project site to be followed cover the limit for Grade II paddy field in the Standard of Soil Environmental Quality （GB15618-1995）and maximum permissible content of neutral and alkaline soil in the Control Standards for Pollutants in Sludges from Agricultural Use GB4284-84. Simultaneously an integrated evaluation of the soil and sediment quality in Tianhe area is made by comparing and analyzing the background soil value in Anhui province.
In the table below are also shown the Standard of Soil Environmental Quality, Control Standards for Pollutants in Sludges from Agricultural Use and background soil value in Anhui province. It is clear from the table that no heavy metal content in the sediment of Tianhe River has exceeded the limit for Grade II paddy field in the Standard of Soil Environmental Quality and the limit in the Control Standards for Pollutants in Sludges from Agricultural Use；Compared with the background soil value in Anhui province, only the arsenic and lead content is slightly higher, about 1.5 times that in the background soil value in Anhui province and is basically close to it.
The organic matter content in the sediment of Tianhe River and its surrounding farmland soil stands at 0.29% and 2.93% respectively. In line with the identification indicator evaluation of soil fertility（soil with organic matter content of about 3% is rated as moderate and superior fertility and less than 1% as inferior fertility）, the sediment in Tianhe River is inferior in fertility while the soil in the farmland superior in fertility, which has something to do with fertilization in farming.
The table below shows the calculation results of ecological risk factors and indices for the sediment in Tianhe River and its surrounding farmland soil.
Table 68: Ecological Risk Factors and Indices of Heavy Metals in the Sediment in Tianhe River and its Surrounding Farmland Soil
|Site |Sediment in Tianhe River |Farmland Soil |
|Item | | |
| |As |Pb |
The calculation results of the ecological risk factors and indices of heavy metal in the table above show both the risk factors and indices of the sediment in Tianhe River and soil are lower than 40 and 150 respectively, indicating the sediment in Tianhe River and soil will inflict slight ecological harm and won’t endanger the growth of artificial wetland and land vegetation significantly.
2. Longzi Lake project
According to survey, the bottom mud in the Longzi Lake dredged area can be divided into three layers, the first is the contaminated layer（A）, the second is the transitional layer（B）and the third is the normal lake sedimentary formation（C）and the features of each layer are shown in the table below. Horizontally in terms of sedimentary thickness of the contaminated layer in the Longzi Lake, the South Lake Area is significantly greater than the North Lake Area as it boasts a thick layer of contaminated bottom mud.
Table 69: Vertical distribution of bottom mud in Longzi Lake
|Dredged layer|Soil |Site decription |
|South Lake |Contaminated |Layer thickness of 0.10~1.1m, 0.5m on average, mud surface top elevation of 15.0~15.6m, black and |
|Area |layer |grey-black, fluid~soft plastic, a lot of organic matter mixed with bush and tree and clam shell on|
| | |the top of silt and silt clay, sand grain in some part. |
| |Transitional |Layer thickness of 0.00~1.60m, 0.8m on average, mud surface top elevation of 14.6~15.2m, |
| |layer |grey-black and grey, soft plastic~plastic, few organic matter mixed with sand and clam shell in |
| | |part. |
| |Normal |Lake sedimentary clay, yellow~brown-yellow, soft plastic on top and turning plastic downward, |
| |layer |mixed with sand, small stone and crushed stone. |
|North Lake |Contaminated |Layer thickness of 0.30~1.50m, 0.8m on average, mud surface top elevation of 14.4~15.4m, black and|
|Area |layer |grey-black, fluid~soft plastic, a lot of organic matter mixed with rotten bush and tree and clam |
| | |shell on the top of silt and silt clay, sand grain in part. |
| |Transitional |Layer thickness of 0.4~2.7m, 1m on average, mud surface top elevation of 14.0~15.0m, grey-black |
| |layer |and grey, soft plastic~plastic, silt clay bottom layer, few organic matter mixed with sand and |
| | |clam shell in part. |
| |Normal |Lake sedimentary clay, yellow~brown-yellow, soft plastic on top and turn plastic downward, mixed |
| |layer |with sand, small stone and crushed stone. |
1. Historical Monitoring Data
The table below shows the routine monitoring results of bottom mud in the North and South Areas of Longzi Lake.
Table 70: Monitoring results of bottom mud in Longzi Lake
Unit: mg/kg (organic matter, %)
| |South Lake Area |North Lake Area |Grade III（GB15618-1995） |
| |Layer A |Layer |Layer |Layer A |Layer |Layer | |
| | |B |C | |B |C | |
|Cu |24.66 |16.64 |18.90 |34.16 |19.42 |22.48 |400 |
|Pb |194.1 |20.45 |24.01 |100.10 |17.57 |22.97 |500 |
|Zn |113.8 |46.41 |51.43 |153.0 |51.52 |57.54 |500 |
|Cr |304.94 |40.63 |48.66 |388.44 |40.90 |57.98 |400（paddy field）,300（dry land） |
|As |17.55 |4.99 |5.71 |17.64 |3.66 |5.20 |30（paddy field）,40（dry land） |
|Cd |0.43 |0.13 |0.15 |0.42 |0.11 |0.13 |1.0 |
|Ni |51.4 |24.1 |26.6 |79.6 |20.56 |20.50 |200 |
|THg |0.05 |0.02 |0.02 |0.21 |0.02 |0.02 |1.5 |
|TN |— |101.53 |115.74 |— |87.78 |109.64 |— |
|TP |— |0.02 |0.02 |— |0.03 |0.03 |— |
|Sulfide (baded on S ) |32.6 |0.04 |0.04 |40.3 |0.06 |0.06 |— |
|Organic matter |2.49 |0.94 |0.89 |3.42 |0.93 |0.99 |— |
In the vertical distribution of bottom mud, heavy metals and nutrients decrease progressively from Layer A to layer B with some rise from Layer B to Layer C. As a whole, Layer A contains much more than the other two mainly because it is contaminated heavily from the outside and Layer B and Layer C are chiefly the products of inherent sedimentation in the soil.
2. Special monitoring of environment supervision
An integrated evaluation of the current soil environmental quality is made in light of monitoring results of the bottom mud of contaminated layer（A）in Longzi Lake area in 2006 provided by Bengbu Environmental Protection Bureau.
Table 71: Monitoring results of the bottom mud in Longzi Lake area
Unit：mg/kg (organic matter, %)
| |Hg |As |Cr |Cu |Zn |Ni |Pb |
|Anhui Province |0.029 |0.083 |8.5 |26.0 |20.2 |67.0 |56.3 |
|Liaoning Province |0.032 |0.084 |8.6 |20.7 |18.5 |54.4 |59.1 |
|Guangdong Province |0.056 |0.04 |7.1 |28.9 |11.4 |34.8 |35.8 |
|Shannxi Province |0.021 |0.089 |10.8 |20.5 |19.5 |62.0 |65.8 |
|Shandong Province |0.016 |0.079 |8.7 |24.3 |21.7 |65.2 |61.9 |
|Henan Province |0.03 |0.074 |10.6 |19.1 |19.0 |62.9 |57.3 |
|North Lake of Longzi|0.01 |0.45 |15.91 |104.6 |40.13 |350.33 |178.67 |
|Lake | | | | | | | |
|South Lake of Longzi|0.04 |0.35 |16.4 |119.8 |19.02 |186.8 |65.58 |
|Lake | | | | | | | |
The table below shows the calculation results of the ecological risk factors and indices of botton mud in Longzi Lake.
Table 73: Ecological risk factors and indices of heavy metals in bottom mud of Longzi Lake
|Area |Eif |RI |
| |Hg |Cd |As |Pb |Cu |Cr |Zn |
|1# |2.04 |10.36 |35.5 |0.064 |34.6 |1.88 |75.111 |
|2# |7.01 |13.06 |42.5 |0.085 |60.4 |3.22 |59.796 |
|（GB15618-1995） |— |30（paddy field） |500 |1.5 |400（paddy |— |— |
|Grade III standard | |40（dry land） | | |field） | | |
| | | | | |300（dryl and） | | |
|Background soil value in|— |8.5 |26.0 |0.029 |67.0 |— |— |
|Anhui province | | | | | | | |
From the above table it is known that all the indicators of bottom mud in Baligou and Xijiagou have reached the Standard of Soil Environmental Quality for Grade III (GB15618-1995), indicating the mud won’t harm and pollute the plants and environment basically. Compared with the background soil value in Anhui province, other indicators except chromium have exceeded the same.
In line with the identification indicator evaluation of soil fertility, soil with an organic matter content of about 3% is rated as moderate and superior fertility and less than 1% as inferior fertility. The bottom mud in Xijiagou is over two times as fertile as moderate and superior fertility and the bottom mud in Baligou is close to moderate fertility.
The table below shows the calculation results of ecological risk factors and indices of dredged bottom mud.
Table 75: Evaluation of ecological risks of dredged bottom mud in Baligou and Xijiagou
|Monitoring site |Eif |RI |
| |As |Pb |Hg |Cr | |
|1#（Baligou） |12.2 |6.85 |88.4 |1.04 |108.49 |
|2#（Xijiagou） |15.4 |8.15 |117.2 |1.8 |142.55 |
From the evaluation in Table 5-5-9 it is known that the major pollutant in the bottom mud in Baligou and Xijiagou is mercury, which will inflict great ecological harm.
3. Guzhen County
Monitoring results of bottom mud are shown in the following table.
Table 76: Special monitoring results of bottom mud for Guzhen project
Unit：mg/kg (Organic matter, %)
|Monitoring Site |Organic |Arsenic |Lead |Mercury |Chromium |Phosphate |Nitrogen |
| |matter | | | | | | |
|1＃Pond on the north side of |9.78 |22.32 |87.1 |0.108 |78.0 |8.10 |80.588 |
|Neilu bridge, Niushixiang,Cheng| | | | | | | |
|Guan town | | | | | | | |
|2＃一West side of EW ditch in |16.82 |15.75 |109.2 |0.152 |90.3 |394.67 |158.125 |
|No.1 Middle School | | | | | | | |
|3＃Near Wangsiweizi of the |5.10 |6.96 |30.0 |0.022 |80.0 |71.75 |25.991 |
|boundary ditch | | | | | | | |
|Grade III, GB 15618-1995 |－ |≤30 |≤500 |≤1.5 |≤400 |－ |－ |
|Background value of soil in |－ |8.5 |26.0 |0.029 |67.0 |－ |－ |
|Anhui province | | | | | | | |
The above table shows that the quality of bottom mud at each site has reached the standard of Soil Environmental Quality for Grade III (GB 15618-1995). Compared with the background value of soil in Anhui province, other indicators except chromium exceeded the same.
Status of bottom mud is evaluated by the ecological risk factors and indices used in the study of substrate in the Yalujiang River by Chen Jingsheng et al.
[pic]
Where [pic]——pollution factor of a single metal；
[pic]——measured value of metal sediment concentration；
[pic]——background value of soil in Anhui province is taken as reference value for calculation；
[pic]
Where [pic]——potential ecological risk factor of a single metal；
[pic]——toxic response factor of a single metal , refer to table 3-4-5；
[pic]
Where [pic]—— potential ecological risk indices of multiple sediment metals；
[pic]——number of indicators
Table 77: Toxic Response Factor of Metals
| |Arsenic |Lead |Mercury |Chromium |
|[pic] |10 |5 |40 |2 |
Table 78: Division of Ecological Risk Factors and Indices
|Eif |RI |Extent of ecological risk |
|320 |— | Extremely great |
The following table shows the calculation results of ecological risk factors and indices of bottom mud.
Table 79: Evaluation of Ecological Risk of Bottom Mud
| Site |Eif |RI |
| |Arsenic |Lead |Mercury |Chromium | |
|1# |26.3 |
| |Organic |Arsenic |Lead |Mercury |Chromium |Phosphate |Nitrogen |
| |matter, % | | | | | | |
|Center of Camel |1.91 |6.042 |38.6 |0.032 |55.0 |4.00 |26.355 |
|Ridge Storage Pond | | | | | | | |
|10 m behind the |0.67 |4.042 |29.1 |0.138 |46.1 |3.86 |23.558 |
|crossing between | | | | | | | |
|Jinshanlu flood | | | | | | | |
|discharge ditch and | | | | | | | |
|Guimenguan flood | | | | | | | |
|discharge ditch | | | | | | | |
|Standard value | |30（paddy field |500 |1.5 |400（paddy field） | | |
| | |） | | |300（dry land ） | | |
| | |40（ dry land ）| | | | | |
From the monitored data on the bottom mud it is known that the concentration of arsenic, lead, mercury and chromium reached the Standard of Soil Environmental Quality（GB15618-1995）for Grade III.
4. Mohekou in Wuhe County project
·Monitoring site
1# Sanpu Canal
2# Mochong river approach
·Sampling results and analysis
Samples should be taken in line with relevant technical specification of environmental monitoring and for chemical analysis, the selective pairing and analytical methods in GB15618-1995 Standard of Soil Environmental Quality should be adopted.
·Sampling time
January 30, 2007
·Monitoring results and analysis
For monitoring results, refer to the following table.
Table 81: Monitoring results of the bottom mud in the Industry Park
Unit：mg/kg (organic matter, %)
| Site location |Item under detection |
| |Oraganic |Arsenic |Lead |Mercury |Chromium |Phosphate |Nitrogen |
| |matter | | | | | | |
|Ⅰ Mochong river approach： near|3.51 |14.49 |34.8 |0.049 |94.4 |2.89 |49.306 |
|the expressway | | | | | | | |
|Ⅱ Sanpu canal：intersection |2.36 |15.64 |34.9 |0.108 |90.1 |2.44 |37.539 |
|between the Park avenue and | | | | | | | |
|Sanpu canal | | | | | | | |
|Ⅲ about 200m downstream |0.83 |15.42 |79.7 |0.022 |80.0 |71.75 |25.991 |
|the intersection between Sanpu | | | | | | | |
|canal and Mochong river | | | | | | | |
|approach | | | | | | | |
|Standard for |— |75 |1000 |15 |1000 |— |— |
|Control of Pollutants in | | | | | | | |
|Agricultural Sludge | | | | | | | |
|（GB4284-84） | | | | | | | |
|Grade III, Standard of Soil |— |Paddy field|≤500 |≤1.5 |Paddy field |— |— |
|Environmental | |≤30 | | |≤400 | | |
|Quality（GB15618-1995） | | | | | | | |
From the above table it is known that the bottom mud in Sanpu Canal and Mochong river approach meets Grade III standard of soil environmental quality in the surrounding stack yard and the Control Standards for Pollutants in Sludges from Agricultural Use（GB4284-84）, indicating the soil won’t harm and pollute the crops and environment basically.
The table below shows the calculation results of the ecological risk factors and indices of dredged bottom mud.
Table 82: Evaluation of ecological risks of dredged bottom mud
|Site |Eif |RI |
| |As |Pb |Hg |Cr | |
|1#（Mochong river approach） |17.0 |6.7 |67.6 |2.8 |94.1 |
|2#（Sanpu canal） |31.4 |9.0 |251.7 |3.8 |295.8 |
From the evaluation in the above table it is known that the major pollutant in the bottom mud is mercury, which will inflict great ecological harm.
Mercury is the sole metallic element existing in a liquid state at room temperature. The commonly-seen mercury pollution source is the industrial sewage from enterprises of chemicals, instruments, pesticides containing mercury, metallurgy, bulb, chloro-alkaline industry and electronics. The existing industry in Mohekou town is mainly distributed in the town area dispersely, which involves in grain processing, resin, building materials and battery. The high mercury content in the rivercourse bottom mud in the area may be attributed to the industrial sewage discharged by enterprises nearby.
7. Environmental Impact Analysis
1. Project Benefits
1. Social Benefits
1. Water Conservancy Project
Of the eight sub-items financed by the World Bank loan, the water conservancy project mainly involves the construction of storm drainage pumping stations and dredging of canals and ditches.
1．Construction of storm drainage pumping stations
The eight sub-items involve the construction and extension of 17 storm drainage pumping stations, which are distributed all over Bengbu urban district and its three counties and suburbs. Of these, five are located on the south bank and eleven on the north bank of Huaihe River as shown in the following table.
Table 83: Schedule of storm drainage pumping stations to be built and extended
|No. |Description |Location |Service area |
|1 |Xinchuantang Storm Drainage Pumping |Urban district |On the south bank of Huaihe River, area east of |
| |Station | |Xijiagou |
|2 |Zhihuailu Storm Drainage Pumping | | |
| |Station | | |
|3 |Nanshijia Storm Drainage Pumping | | |
| |Station | | |
|4 |Tianhe Storm Drainage Pumping Station |Yuhui District |On the south bank of Huaihe River, area west of |
| | | |Baligou |
|5 |Longzihu Storm Drainage Pumping |Longzihu District |On the south bank of Huaihe River, part to the |
| |Station | |east and west of Longzi Lake |
|6 |Beifeihe Storm Drainage Station |Huaishang District |On the north bank of Huaihe River, part to the |
| | | |south of Beifei River in Huaishang District |
|7 |Xiaobengbu Storm Drainage Station | | |
|8 |Wangxiaogou Storm Drainage Station | | |
|9 |Sanpuhu Storm Drainage Pumping Station|Mohekou |On the north bank of Huaihe River, Mohekou Town |
| | | |and Sanpu Lake Area |
|10 |Lizuizi Storm Drainage Pumping Station|Huaiyuan County |On the north and west banks of Huaihe River, |
| | | |Chengguan town, Huaiyuan County and adjacent area|
|11 |Xinzhuangzi Storm Drainage Pumping | | |
| |Station | | |
|12 |Guxi Storm Drainage Pumping Station |Guzhen Chengguan |On the east bank of Huihe River, Chengguan Town |
| | |Town |and its peripheral area |
| | |Southwest suburbs | |
|13 |Xiwei Storm Drainage Pumping Station | | |
|14 |Qizhuang Storm Drainage Pumping | | |
| |Station | | |
|15 |Dalou Storm Drainage Pumping Station | | |
|16 |Xiaolou Storm Drainage Pumping | | |
| |Station | | |
|17 |Chengnan Storm Drainage Pumping | | |
| |Station | | |
From the distribution of storm drainage pumping stations in this construction project, it is evident that after completion of the 17 storm drainage pumping stations, the ability to manage flood and drain storm water in Bengbu urban district, Guzhen, Chengguang town of Huaiyuan and Mohekou area of Wuhe will be enhanced markedly so that the safety of urban districts on both banks of Huaihe river and agricultural production in the neighboring suburbs and counties will be ensured effectively.
The construction of storm drainage pumping stations in each part will effectively upgrade the flood management standard and water level in their service area. The residents, enterprises, villages and farmland within the service area will no longer suffer from flood frequently in the flood season and the safety of people’s lives and property will be guaranteed and industrial and agricultural development and economic benefits in the project construction area will be safeguarded to some extent.
2．Dredging project
• Desilting project of Longzi Lake
After the south lake of Longzi Lake is dredged, its positive effect upon the environment will be revealed in three aspects, namely, improvement of water quality in Longzi Lake, ecological improvement of Longzi Lake and its perimeter and landscape benefit.
After the sewage around Longzi Lake is intercepted and the sewage treatment plant is built, the nutrient enrichments in the lake bottom mud will become the primary pollution source in the water environment of Longzi Lake and a leading factor of the lake eutrophication. The construction of this project can eliminate the widespread pollution by the contaminated bottom mud of Longzi Lake and increase the effective storage capacity of the lake body and self-cleaning ability of the lake while improving its water quality. At the same time with elimination of toxic and harmful substances in the bottom mud, the hydrophytic habitat will be further improved and the growth and reproduction of aquatic life will be promoted. After desilting of Longzi Lake, with afforestation along the bank and restoration of vegetation for surrounding mountain bodies, the ecological environment around the construction site will be improved considerably. Moreover, on the east and west banks of Longzi Lake, typical landscape with the lakeside characteristic will come into being and the overall image of the city will be upgraded.
• Desilting and dredging of Yinghe Section of Baligou and Xijiagou
Baligou area features vast land and sparse population with serious widespread pollution because of farmland runoff and difficulty in sewage catchment；Xijiaogou boasts numerous industrial enterprises in its perimeter with great amount of sewage. As a result the ditches and canals are polluted seriously, which has affected the surrounding ecological environment. After completion of this project, the ditch bottom mud that gives off a foul odor will be cleaned away, the water environment and surrounding eco-environment will be improved, the drainage capacity of ditches and canals will be increased, farmland nearby will be conserved and the added value of land will be raised, which will be conducive to the overall development of the area.
• In Huaishang district on the north bank of Huaihe River, supportive work for the storm drainage station will be done, such as extended excavation of No.2 diversion ditch, dredging of a 40-meter canal and excavation and dredging of a diversion canal. After dredging, the drainage capacity of ditches and canals will be increased, the flood discharge passageway will pass unimpeded and the flood management and storm drainage functions of the pumping station will be brought into full play.
• The Guzhen project involves two parts: dredging of the flood management ditch and dyke building, and dredging of the storm drainage ditch. The dredging of the flood management ditch involves the boundary ditch, railway canal, Wugu River, Liuyuandagou and maintenance squad ditch, and the storm drainage ditch includes Wangsiwei ditch, Wulijing ditch, drain ditch in the March the Eighth part, Suburban drain ditch and Xiaolou station diversion ditch.
The dredging of the above ditches and construction of supportive storm drainage pumping stations will improve the flood management and storm drainage system in the Qizhuang part, Wangsiwei part, Guxi part, Sanbahe part, Dalou part and Xiaolou part in the area south of the Maintenance Squad ditch and east of Huihe River, including Chengguan Town, increase the ability of Chengguan town and its neighboring area to prevent flood and drain storm water significantly and conserve the farmland in the suburbs. It will also ease the effect of natural disasters and increase agricultural income.
The construction of urban sewage pipe network and cleaning and renovation of drainage ditches and canals will incorporate most of urban districts into the urban blowdown system, thereby increasing the collection rate of urban sewage and improving the construction of urban infrastructure. The installation of sewage closure pipeline will strengthen the efforts to conserve the drinking water source, reduce the risk and probability of water pollution in the withdrawal outlet of the urban water works to be built and create favorable conditions for improving the water quality of future urban water works and its normal operation.
The dredging of the flood discharge ditch in Huaiyuan county is mainly designed to desilt the two ponds at TCMH and Camel Ridge and broaden and desilt the three flood discharge ditches in Langanqiao and one mountain foot flood discharge ditch in Xinzhuangzi. The completion of the project will form an effective drainage system at the foot of the west Jingshan Mount and ease the pouring water flow from the north Jingshan Mount and storm drainage pressure in the lower reaches；Simultaneously with the dredging of the flood management ditch, increased capacity of ponds and improvement of flood discharge capacity, the risk of flood and water-logging disasters and economic losses will be reduced significantly.
• Dredging of Sanpu canal in Wuhe County
Shanpuwa area enjoys a low-lying terrain and its storm drainage system is not systematic and complete. The Sanpu Lake depression covers an area of 51.0 km2 and in the area there are eight administrative villages of Mohekou Town with a population of 31,300 people and 63,300 mu of farmland. Sanpu Lake depression is an area of high yield in Wuhe county, which is susceptible to water-logging. Its grain output will fluctuate with the intensity of the flood and water-logging disasters. The construction of this project is conducive to the formation of Sanpu Lake flood prevention system, which will significantly increase the capability of Sanpu Lake area to prevent flood and drain storm water and be of great significance to protecting the villages and agricultural economy in the area.
2. Construction projects of drainage system
1. Urban drainage project
It is divided into two parts: storm drainage system and sewage drainage system. The construction project of storm water drainage system includes transformation of storm pipe network in the old urban district and construction of a new storm pipe network in the New & Hi-tech Zone and Longzi Lake Park；The sewage pipe network includes extension of sewage pipeline in Zhuizishan part of the old urban district, construction of the drainage system in Baligou part and Yanshan West part in the New & Hi-tech Zone as well as construction of new sewage pipeline in the urban southern part and new sewage pipe network in the Longzihu eastern part.
The construction project of the urban drainage system will reap the following social benefits：
① The collection scope of urban drainage will be expanded and storm water and sewage will be separated. The decentralized drainage pipeline in the urban district will be interconnected, which will greatly increase the sewage collection rate of the urban drainage system, help reduce dispersed pollutant discharge outlets and facilitate sewage collection in the long-range plan and perfection of the treatment system.
② Better storm and sewage pipe network will be built up in a complete set in the New & Hi-tech Zone, Longzi Lake Industry Park and urban southern area, thereby forming a drainage system that separates storm water from sewage. This will lay a solid foundation of municipal infrastructure for the development of the new district and promote its economic development and intensify its efforts to invite investments.
③ It will assist in forming the four major drainage systems in the urban district of Bengbu and will be of great significance to attaining the goal of sewage collection rate in the drainage plan and building the sewage treatment plant. It is the prerequisite to achieving the goal set out in the drainage plan and reaping environmental benefits from the sewage treatment project.
2． Drainage project in the suburban county
• The content of the drainage pipeline works for the Guzhen urban district is to install the main pipe for sewage collection in Chengguan town, which will cross Sanba River through the preformed pipe culvert and be discharged into Huihe River after joining Guzhen Sewage Treatment Plan downstream. Its main social benefits lie in creating favorable conditions for the construction of the sewage branch pipe in the urban district of Guzhen in the future and improvement of the sewage system. Besides, it has also laid a solid foundation for normal operation of Guzhen Sewage Treatment Plant. As to its environmental benefit, total pollutant reception volume in Sanba River will be reduced greatly by intercepting the urban sewage to be discharged into Sanba River, thereby improving the water environment.
• The main content of the construction project for storm water pipe network and road building in the grain and edible oil processing area of Huanyuan town and Chengguan town is to install infrastructure facilities in a complete set in the newly-built grain and edible oil processing area with the purpose of collecting storm water in the processing area effectively and increasing its ability to fight flood and drain storm water, thereby providing infrastructure and safety for the construction and investment promotion of the grain and edible oil processing area.
The main content of the construction project for storm water pipe network and road building in the grain and edible oil processing area of Huanyuan town and Chengguan town is to install infrastructure facilities in a complete set in the newly-built grain and edible oil processing area with the purpose of collecting storm water in the processing area effectively and increasing its ability to fight flood and drain storm water, thereby providing infrastructure and safety for the construction and investment promotion of the grain and edible oil processing area.
3. Construction of the Industry park
The construction project for Mohekou Industry Park in Wuhe county mainly covers the surface water works and water distribution pipe network, sewage treatment plant and road building in the Industry Park. As a provincial development zone approved by Anhui provincial government, Mohekou Industry Park’s development goal is to be gradually built into a major industrial base of fine chemicals and a modern eco-type industry park in Anhui. But it is located in the Sanpuhu depression with undeveloped water conservancy works, frequent flood and water-logging disasters and poor municipal infrastructure and unshaped water supply and drainage and road system, which has restricted the development of the industry park.
After completion of this project, the drainage system in the Park will be gradually improved and simultaneously with the construction of the storm drainage pumping station, the capability of the Park to prevent flood and drain storm water will be increased greatly, thereby safeguarding its construction and development and making it more capable to attract investments and provide basic physical equipment.
The construction of the surface water works can not only provide the resident enterprises with good industrial water, but also supply drinking water of steady flow and good quality to the dwellers in Mohekou town；Besides, its construction and water supply will also reduce the withdrawal volume of underground water by its surrounding area, thereby conserving underground water resources to some extent.
The construction of the sewage treatment plant can not only collect and handle effectively the industrial sewage in the Park and domestic sewage from dwellers living in the Mohekou town and reduce total volume of sewage discharged into the Huaihe River from the Park to a minimum, thereby easing the pollution of Huaihe River and decreasing the risk of polluting Huaihe River by the industrial sewage from the Park. It can also create sound infrastructure conditions for the rapid and sustainable development of the Park, which is conducive to promoting the economic development of the Park.
4. Road Building
Road building in this project is mainly concentrated on the following areas:
（1）Road building in the economic development zone: 16-30m wide and 1611-4913m long.
（2）Construction of a riverside avenue in Huaishang district and its branch road: red line of the riverside avenue is 20-30m wide and 11.9 km long （three road bridges）；twenty-one urban branch roads in Huaishang District.
（3）Road building in Mohekou Industry Park：Roads in the Park under planning with a total area of 400,000m2.
（4）Road building in Chengguan Town Grain & Edible Oil Processing Area in Huaiyuan：Road redline is 15-38m wide and 1050-1850m long.
（5）Guzhen bridge building and road building at top of dyke：river bridge is 15-20m wide, 27 in all；Road at top of dyke is 4.5-6.0m wide and 3-9 m long.
Social benefit of road building is to improve the infrastructure in the construction location to facilitate travel by residents and transport of supplies, beautify urban landscape, upgrade overall image of urban district and promote business investments and development of the Park.
2. Economic Benefits
1. Disaster-reducing benefit of Tianhe Storm Drainage Station
The economic benefit of water conservancy projects is mainly manifested in the disaster-reducing benefit after improvement of flood management and storm drainage ability. Below is an analysis of the disaster-reducing benefit exemplified by Tianhe Storm Drainage Pumping Station.
Total investment of Tianhe Pumping Station amounts to 67.20 million yuan and the economic benefit after completion of the project is mainly exhibited in the improved ability to prevent flood and drain storm water for realization of disaster-reducing benefit. After completion of Tianhe Pumping Station, if flood occurs to Tianhe once in twenty years, 15000 mu of farmland and 35 villages fewer than those at present will be flooded. Compared with the flood in 2003, 45000 mu of farmland was flooded, 15000 mu of water surface for aquaculture suffered, flood ran into more than 20 villages and 21 pumping stations were flooded, which caused a direct economic loss of 32 million yuan. After completion of this project, the indirect economic benefit from decreased flooded area will come to 10 million yuan at least, accounting for ~14.9% of the investment in the project. If the Tianhe Pumping Station is not to be built, the economic loss due to the seven disastrous years will be equal to the investment cost of the station. In other words, the investment can be recovered in the seven disastrous years.
2. Economic benefit of Mohekou surface water works
The construction investment in Mohekou Surface Water Works amounts to 64.50 million yuan and after its completion the daily water supply will come to 30,000 t/d and the supply covers residents in Mohekou town for drinking water and industrial enterprises in the Park for production water. According to the plan for 2010, Mohekou town will have a population of 35000 people with water consumption of 14600 t/d and industrial water consumption of 21400 t/d；Based on the current price of tap water （1.35yuan/t for industrial water and 1.1yuan/t for drinking water） the estimated benefit of the new Mohekou Surface Water Works will come to 14.2251 million yuan/a and after deduction of 657,000yuan/a for water resources charge payable by the Works, the actual benefit after completion of the project will amount to 13.568 million yuan/a, accounting for 21% of the construction investment. In other words, the charges collected in five years for water supply after completion of the project will be equal to the construction investment.
Table 84: Estimated benefit from water supply by Mohekou Surface Water Works
|Type of water |Consumption 10000t /d |Price yuan/t |Total charges for water supply,|
| | | |10000 yuan /a |
|Industrial water |2.14 |1.35 |1055 |
|Domestic water |0.46 |1.1 |185 |
|Other purpose |0.40 |1.25* |182.5 |
| Total |3 | |1422.5 |
| Water resources charge |3 |0.06 |65.7 |
* Average price
3. Economic benefit of Mohekou Sewage Treatment Plant
The construction investment in Mohekou Sewage Treatment Plant amounts to 123.00 million yuan and after its completion the daily handling capacity will come to 30,000 t/d and the service covers industrial enterprises in Mohekou town and the Park for industrial sewage. According to the plan for 2010, Mohekou town will have a population of 35000 people with water consumption of 4600 t/d and industrial water consumption of 21400 t/d；Based on the pollution factor of 0.85 for the total consumption the sewage treatment capacity will come to 22100t/d.
Based on the current sewage price (0.7yuan/t for industrial sewage and 0.6 yuan/t for domestic sewage), the estimated benefit of sewage disposal for the new Mohekou Sewage Treatment Plant will come to 7.235 million yuan each year, accounting for 5.9% of the construction investment. After deduction of operating cost, annual benefit will come to 1.535 million yuan, indicating the economic benefit is very low, which can only maintain normal operation as its environmental and social benefits are dominant.
Table 85: Estimated operating benefits of Mohekou Sewage Treatment Plant
|Type of water |Consumption 10000t /d |Price yuan/t |Total charges for water supply,|
| | | |10000 yuan /a |
|Industrial wastewater |1.82 |0.7 |465 |
|Domestic sewage |0.34 |0.6 |74.5 |
|Other wastewater |0.84 |0.6 |184 |
|Total |3 | |723.5 |
|Operating cost of Sewage Plant |3 |0.52 |570 |
3. Environmental Benefits
1. Environmental Benefits of improved pipe network system
In the improvement project of urban environmental infrastructure the sewage pipeline works is dispersed, but its function is to link up the disconnected sewage pipe network and form a complete sewage system, thereby increasing the network access rate of the sewage significantly. Especially the pipe network construction in the economic development zone and new & hi-tech zone will directly increase the sewage collection amount of Bengbu No. 1 Sewage Treatment Plant (Xijiagou).
Among other things the Zhihuailu sewage lifting pumping station project has achieved the best water collection effect. When the pumping station and its supportive pipe network for the sewage collection area are put into operation, 30,000 t/d of urban sewage will be increased directly, which will be transmitted to the No. 1 Sewage Treatment Plant completely, thereby improving the low utilization of capacity of the sewage treatment plant.
As the current, sewage handling capacity of No. 1 Sewage Treatment Plant reaches 130,000-140,000 t/d only, there is still some way to go to the design capacity of 200,000 t/d.
After completion of the pipe network and pumping station project, the pipe network within the sewage collection range of No. 1 Sewage Treatment Plant will be improved basically and about 50,000 t of sewage will be increased, which can raise the workload of No. 1 Sewage Treatment Plant to 180,000-190,000 t/d, achieving full-load operation in the main.
50,000 t of sewage will be collected into the network and discharged up to the standard after treatment in the Plant, which will cut down total pollutants discharged into Huaihe River markedly.
After calculation, the actual reduction of pollutants is as follows: CODcr 3650 t/a. and ammonia nitrogen 730 t/a. No doubt the pipe network improvement project in the urban district has reaped significant environmental benefits.
2. Control of total volume for the urban drainage project
The construction of the drainage system project in the urban district will raise the collection rate of sewage from the urban district and simultaneously with the construction of the sewage treatment plant, the urban sewage treatment rate will be increased significantly. As planned, by 2010 three sewage treatment plants will be built in the urban districts of Bengbu city. The construction of the pipe network for this project will reap its indirect environmental benefit after completion and operation of the supportive sewage treatment plant.
Table 86: Estimated annual volume of sewage discharge in the urban plan of Bengbu
|Evaluation |Total sewage |Treated sewage |Untreated |Change in total volume |Change in total volume |
|Time |discharge |volume |volume |t/a |t/a |
| |10,000 t/d |10,000 t/d |10,000 t/d | | |
| | | | |COD |± % |Ammonia |± % |
| | | | | | |nitrogen | |
|2005 |29.5 |10 |19.5 |20115 | |3713 | |
|2010 |49.4 |10 |39.4 |37778 |+87.8% |6654 |+79.2% |
| |49.4 |20 |29.4 |30478 |+51.5% |5194 |+39.9% |
| |49.4 |32.5 |16.9 |21353 |+6.2% |3369 |-9.3% |
From the data in the table it is clear that by 2010 with increased population and sustainable development of economy and gradual improvement of sewage closure pipeline, the sewage volume in the urban district of Bengbu will increase by 67.5% over 2005. The implementation of the urban drainage project will lead to a great quantity of sewage being discharged into Huaihe River via the pipe network. Without the supportive construction of the sewage treatment project, total volume of sewage will rise accordingly by a big margin. If by 2010 the current capacity of sewage treatment remains unchanged, namely, Xiajiagou Sewage Treatment Plant still has a handling capacity of 100,000 t /d, then the total discharge volume of COD will rise by 87.8% and ammonia nitrogen will rise by 79.2% over 2005；If by 2010 the first phase works of the supportive Yangtaizi and Hebei Sewage Treatment Plants are put into normal operation as scheduled, the discharge volume of COD will rise by 6.2% over 2005, basically close to the total discharge volume in 2005 and the discharge volume of ammonia nitrogen will decrease by 9.3% over 2005. It is evident that only when the construction project of urban drainage system is interconnected with the sewage treatment project can their role of pollution control be brought into play with actual environmental benefit.
3. Control of total volume for Mohekou Sewage Plant
Total volume of industrial sewage in Mohekou Industry Park amounts to 30,000 t/d；If each industrial enterprise handles sewage by itself, the emission standard is COD 100mg/L and ammonia nitrogen 15mg/L; If a sewage treatment plant is built, the industrial sewage in all the industrial enterprises in the Park will be discharged into the Plant after pretreatment and the emission standard is COD 50 mg/L and ammonia nitrogen 5 mg/L；The change in total discharge volume based on this calculation before and after establishment of the Treatment Plant is shown in the following table:
Table 87: Statistics of reduction in total volume of the sewage treatment plant in Mohekou Park
|Item |Sewage volume|COD |Ammonia nitrogen |
| |10000 | | |
|Category |t/d | | |
| | |Concentration |Discharge |Concentration |Discharge t/a |
| | |mg/L |t/a |mg/L | |
|Emission after the pretreatment |3 |100 |1095 |15 |164.25 |
|meets Integrated Wastewater | | | | | |
|Discharge Standard for Grade I | | | | | |
|Sewage discharge that meets the |3 |50 |547.5 |5 |54.75 |
|Standard after entering the | | | | | |
|Treatment Plant | | | | | |
|Reduction percent in total volume, | | |-50% | |-66.7% |
|% | | | | | |
It is clear that for Mohekou Park，after the sewage from the enterprises in the Park undergoes centralized treatment in the new sewage treatment plant， its emission will meet the Discharge Standard of Pollutants for Municipal Sewage Treatment Plant for A, Grade I and the discharge volume will be reduced greatly, of which COD will be cut by 50% and ammonia by 66.7%.
4. Eco-environmental benefit from the vegetation restoration project
The vegetation restoration project mainly focuses on the vegetation restoration for the damaged mountain body around Longzi Lake and Xijaigou side slope afforestation. Their eco-environmental benefit is manifested in the following aspects:
1．Revetment and vegetation restoration along the coast of Longzi Lake
（1）In this project the side slope along Longzi Lake is renovated and remodeled by combining natural embankment with solid embankment, which can greatly raise the visual landscape benefit of Longzi Lake. At the same time with vegetation restoration in the south of South Lake and the north outlet to Huaihe River the area of greenbelt around Longzi Lake will be increased. Water birds are attracted to perch here, thereby increasing the natural landscape benefit of Longzi Lake.
（2）In the renovation of the revetment along the bank, the type of embankment that suits the regional terrain, landform and environmental features will be adopted. As a result soil erosion due to bared earth on the side slope and collapse will be eased and simultaneously eco-stream exchange between water and land will be maintained so that sound perching environment may be provided for the growth and restoration of bio-community dwelling at the bank.
（3）Vegetation restoration in the south of South Lake and the north outlet to Huaihe River will significantly increase the area of greenbelt around Longzi Lake and attract numerous living things to perch and procreate here, which will play a great role in increasing local biomass and bio-diversity. At the same time plants in the wetland can also reduce the mud and sand carried to the lake area due to soil erosion in the perimeter of the Lake area.
（4）Renovation of side slope around Longzi Lake can block the water from farmland surface runoff and reduce the discharge volume of nitrogen and phosphorus pollutants in the agricultural sewage into the lake.
（5）Vegetation is to be restored in the south lakeside area with an elevation of 17m to19m and north lake outlet to Huaihe River. In the south bank of Longzi Lake an eco-system will be set up in which the terrestrial habitat plant community will transit to the wet emerging plant and submerged plant community in the bank water body. After completion of the project, water from the upper reaches will be converged into Longzi Lake through coastal vegetation and discharge from Longzi Lake will also enter Huaihe River through the outlet to Huaihe River and the plants will purify the water body soundly.
（6）Purification of water body by plants includes direct purification and indirect purification. By direct purification is meant direct elimination of pollutants in the sewage by plants through absorption, adsorption and enrichment. Indirect purification refers to the process in which plants can provide sound environment for elimination of other pollutants in the eco-system, such as supply of oxygen in the plant root zone, enhancement of hydraulic conduction and maintenance of aeration. Therefore the construction of this project will play a positive role in improving the water body eutrophication in Longzi Lake.
2．Dredging of Baligou and coastal afforestation project
The completion of this project will coordinate with the improvement of the sewage treatment system in Bengbu city and the coastal sewage interception works. The sewage discharged into Huaihe River from Baligou and Xijiagou will be reduced remarkably and the current water environmental quality in the area will be improved significantly. As both Baligou and Xijiagou are the primary tributaries on the south bank of Huaihe River to which both lead directly, better water quality in them will play a positive role in improving the water quality of Huaihe River. Only when the water quality of tributaries on the way meets the standard, can the overall water quality of Huaihe River reach the Environmental Quality Standard for Surface Water（GB3838-2002）for Grade III.
At present the eco-environment around Baligou and Xijiagou is poor. As no dredging has been done for many years, water quality in some river sections has deteriorated and aquatic plants and animals can hardly exist. Numerous pollutants are concentrated in the bottom silts of Baligou and Xijiagou river course. After dredging and broadening of Baligou and Xijiagou river course the contaminated bottom mud will be separated from the river course and internal pollution will be eliminated. In addition, after completion of the project the sewage will be intercepted in the Xijiagou and Baligou area to reduce external pollution. So the water environment in Baligou and Xijiagou will be improved significantly. In the water body of Baligou and Xijiagou river course, zooplankton and phytoplankton as well as bottom dwellers will come into being because of better water quality, forming an aquatic eco-system. The bottom dwellers and microorganisms in water body will biodegrade and improve water quality and such an interaction will further give rise to a virtuous circle of aquatic eco-system.
2. Environmental Impacts during Project Construction
1. Analysis of air impact
In the construction of this project the major air pollution source is dust, odor and tail gas emitted by construction machinery.
1. Analysis of dust impact
Raised dust in construction is produced mainly in the following processes:
（1）On the construction site, a large quantity of raised dust from stack soil is produced in mixing of concrete and stacking of bulk powdered materials on the uncovered ground.
（2）A large quantity of raised dust is produced as the transport vehicles and construction machinery are traveling on the road because of friction between the wheel and road surface.
（3）Drifting, scattering and raising of the earth loaded in vehicles and bulk building materials in transit, loading and unloading will increase the concentration of dust in the air.
（4）In road building cleaning of road surface, stacking of sand and stone on the roadside and temporary occupancy of land will give rise to widespread pollution by raised dust.
As a whole dust is a major air pollution source in construction. Following is a separate description of the impact of road and site dust upon the atmospheric environment.
（1）Analysis of construction road dust
The construction road dust is mainly concentrated in the access road and major transport road in the construction area for each project.
The dust in the construction period can be divided into dusting by wind and dusting by power in terms of its cause, of which dusting by wind is mainly produced from the building materials （sand and cement）stacked in the open air and floating dust on the uncovered surface of the construction area in the dry weather and heavy wind while dusting by power is mainly produced from suspension of dust particles in the handling and mixing of building materials due to external force, of which the raised dust due to construction and loading and unloading vehicles is most disastrous. According to relevant literature, raised dust produced from running vehicles accounts for over 60% of total dust volume and can be calculated by the following empirical formula on the precondition of complete dryness:
[pic]
Where Q——dust from running vehicles, kg/km•vehicle；
V—— speed, km/hr；
W—— load, t；
P——dust volume on the road surface, kg/m2。
Table 7-1-1 shows the dust volume of one 10-t truck that passes through one section road 1 km long on the precondition of different road cleaness and driving speed. It is known that if road cleanness remains unchanged, the faster the speed, the greater the dust volume will become while at the same speed the dirtier the road, the greater the dust volume will become. Therefore driving at speed limit and keeping the road clean is an effective means to reduce dust.
Table 88: Car dust with different speed and road cleanness
Unit：kg/vehicle•km
|P |0.1(kg/m2) |0.2(kg/m2) |0.3(kg/m2) |0.4(kg/m2) |0.5(kg/m2) |1.0(kg/m2) |
|Speed | | | | | | |
|5(km/hr) |0.051056 |0.085865 |0.116382 |0.144408 |0.170715 |0.287108 |
|10(km/hr) |0.102112 |0.171731 |0.232764 |0.288815 |0.341431 |0.574216 |
|15(km/hr) |0.153167 |0.257596 |0.349146 |0.433223 |0.512146 |0.861323 |
|25(km/hr) |0.255279 |0.429326 |0.58191 |0.722038 |0.853577 |1.435539 |
Another main cause for dust in the construction period is dust raised by wind in the open stackyard and on the uncovered ground. For convenience in construction some building materials have to be stacked in the open air；The surface soil on some construction sites has to be excavated and piled manually. When it is dry and windy, dust raised can be calculated by the empirical formula for stackyard dusting:
[pic]
Where Q—— dusting volume, kg/t•a；
V50——wind velocity at 50 m from the ground ,m/s；
V0——wind velocity for dusting, m/s；
W——moisture content of dust particle, %.
V0 is related to the particl size and moisture content and therefore reduction of stacking in the open air, assurance of proper moisture content and reduction of uncovered ground are effective measures to decrease dusting by wind. Dust on the construction site and road can be prevented and controlled by sprinkling water and cleaning. Cleaning with watering can decrease dusting volume by 70～80％ whereas watering after cleaning can inhibit over 90％of dust. Relevant tests have shown that watering for dust removal four to five times a day on the construction site can reduce the dust pollution distance to 20～50m.
Spread and diffusion of dust particles in the air has something to do with meteorological conditions including wind velocity in addition to the settling velocity of dust particles themselves. Take sand dust for example. The settling velocity of dust particles with different size is shown in Table 42, from which it is known the settling velocity of dust particles will increase with particle size rapidly. When the particle size reaches 250 μm, the settling velocity is 1.005 m/s and therefore it may be assumed that when the dust particle is larger than 250μm, the main influence occurs in the near distance range downwind at the dust point. But it is some tiny dust particles that rearly affect the external environment. Depending on the climate on the site, their influence scope will also vary.
Table 89: Settling velocity of dust particles with different size
|Particle size, μm |10 |20 |30 |40 |50 |60 |70 |
|Settling velocity, m/s |0.003 |0.012 |0.027 |0.048 |0.075 |0.108 |0.147 |
|Particle size , μm |80 |90 |100 |150 |200 |250 |350 |
|Settling velocity, m/s |0.158 |0.170 |0.182 |0.239 |0.804 |1.005 |1.829 |
|Particle size, μm |450 |550 |650 |750 |850 |950 |1050 |
|Settling velocity, m/s |2.211 |2.614 |3.016 |3.418 |3.820 |4.222 |4.624 |
The dust influence distance in construction is analyzed by analogy（for monitoring results of dust on the construction site, refer to Table 43, at a wind velocity of 2.4 m/s）.
Table 90: Monitoring results of TSP concentration downwind on the construction site
Unit：mg/m3
|Distance |20m |50m |100m |150m |200m |250m |
|Concentration |1.503 |0.922 |0.602 |0.591 |0.512 |0.406 |
From Table 46 it is clear that at 50 m downwind on the construction site, TSP concentration is lower than the monitored concentration limit（1.0 mg/m3） for unorganized emission specified in the Integrated Emission Standard of Air Pollutants（GB16297-1996）. The dusting intensity on the construction site is related with many factors including site conditions, construction method, equipment and season, meteorological conditions and soil of the construction location.
The urban flood management and eco-environment treatment project for Bengbu covers a wide area and most of job sites for flood management and storm drainage are distributed linearly with numerous residential areas nearby, which are susceptible to raised dust and protective measures should be taken. The construction impact is temporary and with completion of construction works the impact of dust upon the environment will also disappear accordingly.
2. Odor
This project involves many dredging works and the odor given off in the desilting and transport of bottom mud will affect the environment.
（1）Rating of odor intensity
Odor intensity is rated on the basis of olfactory threshold of odor and odor evaluation is carried out with reference to the Japanese Six-rating Classification of Odor Intensity as shown in Table 47. Grade I standard is equal to 2.5-rating of odor intensity and beyond the intensity scope, odor pollution is thought to have occurred and counter-measures have to be taken.
Table 91: Standard of six-rating classification of odor intensity
（Japanese Environmental Hygience Department）
|Odor intensity |Description of sensation intensity |Odor intensity |Description of sensation intensity |
|0 |Odorless |3 |Marked odor is sensed |
|1 |Slight odor ( sensitivity threshold) |4 |Odor |
|2 |Able to distinguish the type of odor ( cognitive |5 |Strong odor |
| |threshold) | | |
（2）Analysis of the impact of odor
Intensity of odor pollution is analyzed by analogy.
① With referenect to the dredging project of Nanpaozi in Mudanjiang （dry excavation in summer ）, odor intensity in the pollution source is surveyed and analyzed as follows:
Table 92: Odor intensity of dredged bottom mud （dry excavation in the dry pond）in Nanpaozi of Mudanjiang
|Distance |Sensation intensity of odor |Rating |
|alongshore |Marked odor |3 |
|30 m from the alongshore |Slight |2 |
|80 m from the alongshore |Very slight |1 |
|100 m beyond |Odorless |0 |
② In the lake harnessing project of South Lake in Nanning wet dredging is adopted with the result of slight odor by the lake and basically odorless 50m beyond.
③ Conclusion
Analysis by analogy shows that in the dredging process of this project marked odor is sensed by the ditch；2-rating odor intensity is reached 30m beyond with slight odor, below the limit level of odor intensity（2.5-3.5 rating）and basically odorless 50m beyond.
In this project some dredging sites are near the residential quarters, such as Neigoutang in Niushixiang of Guzhen County, Sanpudagou in Mohekou of Wuhe County and Mochong river approach and some residential quarters are within 30 m from the ditches and ponds to be dredged. What is more, residents just live by the ditch and the dredging project will no doubt affect them, but such impact is temporary and after completion of works this impact will disappear accordingly.
3. Tail gas, smoke and dust pollution
In dyke building and construction of flood road at top of dyke, a large number of transport vehicles and construction machinery will be operated. In the operation of these vehicles and machines tail gas will be emitted. Car and machinery tail gas mainly contains HC, CO and NOX. In melting and spreading asphalt, harmful gases like THC and Bap will be produced and in the operation of construction machinery NO2 and CO waste gas will be emitted. The asphat concrete for the construction project should adopt the plant-mixing method, which is concentrated mixing of materials in the plant production and carried out in the specialized mixing plant with a large size and sound equipment. It should be far away from the construction road （over 300 m away from the sensitive point in particular）. This method can reduce the harmful gas produced in asphat melting. Compared with melted smoke pollution, the spread asphalt smoke pollution is slight and the waste gases like NO2 and CO emitted from construction machinery are fewer and won’t exert a great impact upon the nearby environment.
2. Analysis of acoustic environmental impact
（1）Intensity of noise pollution source
Construction noise is made by machinery and transport vehicles mainly. The noise pollution intensity of this project varies with different phase, site and type of job. In the construction period numerous machines are used. As job is done in the open air without any sound insulation and elimination measures, noise is spread far and wide and a big area is affected. For the sound level of machinery in the construction period refer to Table 49.
Table 93: Sound levels of major construction machinery
|Type of job |Main noise source |Sound level |
|Earthwork |Excavators, bull-dozers, loaders and submerged pumps |85～108 |
|Foundation treatment |Pilers, drillers and caterpillar tractors |96～109 |
|Concrete works |Cable hoists, concrete mixers, cranes, concrete delivery pumps and |95～110 |
| |concrete poker vibrators | |
|Bridge and road |Bull-dozers, road rollers, cable hoists and concrete spreaders |85～100 |
|building | | |
Note：The piling process in road and bridge building in the above table is included in the foundation treatment phase.
（2）Analysis of noise environmental impact on the construction site
From the analysis of construction pollution source it is known that the noise source on the construction site is mainly the construction machinery that makes great noise and at each construction phase a lot of machinery is in operation on the spot with a sound leve of 85～110 dB(A) for a single unit. These construction machines defy protection. For construction in the open air, noise level can be calculated by the following formula for its attenuation with distance：
[pic]
Where
L1 and L2———sound level, dB(A) at r1 and r2 from the source；
r1 and r2———distance from the noise source,m.
In calculation, r1＝1 m
Noise attenuation of each construction machine with distance is shown in Table 50.
Table 94: Calculation of noise attenuation of major noise-making machinery in the construction period
Unit：dB(A)
|Type of job |Max. sound |Distance from construction machinery （m） |
| |Level | |
| | |1 |10 |
| | | |
| |Pollution discharge |Proportion in the total |Pollution discharge |Proportion in the total |
| |volume 10000t/a |pollution discharge volume |volume 10000t/a |pollution discharge |
| | |of the city | |volume of the city |
|Baligou |1228 |11.5% |1649 |18.3% |
|Xijiahou |5080 |47.0% |4316 |47.8% |
|No.3 Dock |672 |6.2% |336 |3.7% |
|No.1 Dock |669 |6.2% |325 |3.6% |
|Jiaotong Road |1185 |11.2% |870 |9.7% |
|Longzi Lake |1840 |17.0% |1510 |16.7% |
|Baojiagou |100 |0.9% |21 |0.2% |
|Total |10744 |100% |9027 |100% |
From the data in the table, we can see that, among the seven major urban pollution discharge outlets, the pollution discharge volume of Xijiagou is the largest, which accounted for more than 47% of the urban total discharge amount, and followed by Baligou, the Longzi Lake, Jiaotong Road, No.3 Dock, No.1 Dock and Baljiagou. We can also see that, the sewage of Bengbu City can be divided by the Xijiagou, the sewage amount of the west area of Xijiagou is larger, which accounted for more than 60% of the total amount, nearly 154,000 t/d; while the sewage of the east area of Xijiagou is less than 40% of the total, amounting to 104,000 t/d. The total collected sewage amount of the entire urban pollution discharge outlets is about 258,000 t/d.
According to the statistics of 2005, in Bengbu city, the sewage treatment capacity is 25.55 million tons, the industrial wastewater treatment capacity is 16.89 million tons and the total amount of sewage collection and treatment is 42.44 million tons/year. The concentrated sewage treatment rate is about 30%, so the total sewage amount of Bengbu City in 2005 is about 141.47 million tons / year, the ratio of the living wastewater to the industrial wastewater is 3:2.
Statistical analysis chart of pollution discharge volume of Bengbu City pollution discharge outlets is Figure 11
[pic]
Figure 11: Statistical analysis chart of pollution discharge volume of Bengbu City pollution discharge outlets
Seen from the current distribution of Bengbu City drainage system, the sewage entering the 7 pollution discharge outlets is basically collected by the pipe network. Only the east side of Baligou, east bank of the Longzi Lake and Baojiagou area haven’t formed the pipe network, so the sewage access network rate of the pollution discharge outlets of Baligou and the Longzi Lake takes by 50%, and exclude the sewage of Baojiahou. Accordingly, estimate the actual collection rate of Bengbu City sewage pipe network. Table 53 is the estimated results of sewage collection rate.
Table 97: Estimated results of collection rate of Bengbu City sewage pipe network
|Pollution discharge outlet |Baligou |Xijiagou |No.3 Dock |No.1 Dock |Jiaotong Road |Longzi Lake|
|Sewage access network rate |50% |100% |100% |100% |100% |50% |
|Sewage amount of actual access network |614 |5080 |672 |669 |1185 |1840 |
|10000 t/d | | | | | | |
|Total amount of the sewage access network|10060 |
|10000 t/d | |
|Total amount of urban sewage in 2005 |14147 |
|Current sewage collection rate |70% |
From the estimated data in the table: the current sewage collection rate of Bengbu City is about 70%, the sewage treatment rate is around 30%, which is close to the average treatment rate 33% of the wastewater in the Huaihe River. It is far below the requirement in the plan of reaching 70% of the concentrated sewage treatment rate till 2010.So it is very important to perfect the construction of sewage closure pipe network and speed up the construction of sewage treatment works.
7.3.1.1.2 Water quality analysis of urban sewage
According to 2005 statistics data of the total amount of pollutants with chemical oxygen demand and ammonia nitrogen index, nearly 100,000 tons of the sewage achieved GB18918-2002 Grade I A standard (CODcr 50mg/L, ammonia nitrogen 5mg/L) after the treatment of Xijiagou sewage treatment plant, and then discharged into the Huaihe River, estimate the water quality of the remaining untreated sewage as the current average concentration of Bengbu City untreated sewage. Figure 12, Figure 13 and Figure 14 are the statistical analysis charts of sewage and pollutants discharge of 7 pollution discharge outlets.
Table 98: Statistical analysis table of water quality of Bengbu urban pollution discharge outlets in 2005
|S/N |Name of pollution discharge outlet |Volume of wastewater |CODcr mg/L |Ammonia nitrogen mg/L|
| | |10000t/a | | |
|1 |Baligou |1228 |255 |29.0 |
|2 |Xijiahou |5080 |132 |29.9 |
|3 |No.3 Dock |672 |184 |44.9 |
|4 |No.1 Dock |669 |244 |34.8 |
|5 |Jiaotong Road |1185 |256 |42.8 |
|6 |Longzi Lake |1840 |225 |41.8 |
|7 |Baojiagou |100 |236 |28.7 |
|Weighted average value |10774 |187 |34.5 |
|Estimated value of total amount of pollution |10774 |15147 |2640 |
|discharge in 2005 | | | |
|Statistical value of total amount of pollution |10774 |20115 |3713 |
|discharge in 2005 | | | |
|Deviation ratio (Statistical value/Estimated value) | |1.35 |1.41 |
Note: *Estimated value: 100,000 tons/day of the sewage in the total sewage of 2005 is treated effectively and achieved Grade I A standard, estimate the COD, Ammonia nitrogen emissions of the remaining sewage by the weighted average of the seven pollution discharge outlets.
[pic]
Figure 12: Statistical analysis chart of CODcr emissions of Bengbu City
[pic]
Figure 13: Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution discharge outlets in 2005
From Table 97, we can see that, if estimate the pollution discharge volume by the weighted average of the urban seven pollution discharge outlets, the value is markedly lower than the actual emissions of the pollutants, so we need to make some adjustments of the weighted average value to make it close to the actual discharge concentration of the sewage.
Meanwhile, this environmental evaluation uses reverse deduction method to estimate the water quality of the untreated sewage, the specific methods are: based on the sewage discharge volume, emissions of the pollutants of seven major pollution discharge outlets of Bengbu City in 2005, there is 100,000 tons of sewage can achieve Grade I A standard after the treatment of sewage treatment plant, estimate the emissions of the pollutants of these discharge sewage which already achieved the standard. Take the remaining emissions of pollutants as the untreated sewage emissions, then reverse deduct the water quality of the untreated sewage water. Estimated results are shown in Table 98.
Table 99: Reverse deduction estimate table of water quality of untreated sewage water of Bengbu City in 2005
|Project |Wastewater Discharge|COD |Ammonia nitrogen |
| |Volume | | |
| |10000 t/a | | |
| | |Concentration mg/L |Discharge amount|Concentration mg/L |Discharge amount|
|Statistical value |10774 | |2.0115 | |0.3713 |
|of total amount | | | | | |
|Treated Sewage Up |3650 |50 |0.1825 |5 |0.01825 |
|to Standard | | | | | |
|Untreated Sewage |7124 |257 |1.829 |50 |0.35305 |
From the data in the table, we can see that, if want to match the actual emissions of pollutants, the water quality of the untreated sewage water shall be CODcr of 257mg / L and ammonia nitrogen of 50 mg/L. Analysis of the estimated data in table 5 and table 6 and take into the full consideration of the fluctuation scope of the water quality of seven pollution discharge outlets, this environmental evaluation final confirms: Among the sewage discharged from the seven pollution discharge outlets of Bengbu City, the water quality of the untreated sewage water is CODcr of 250mg/L and ammonia nitrogen of 45gm/L.
In the following analysis of the total pollutants and the prediction of water-environmental impact, we will use such value as the average water quality of the untreated sewage.
7.2.1.1.3 Total amount control analysis of urban sewage
According to the development planning and drainage plan of Bengbu City, till 2010, Bengbu City's sewage collection system will form the basic network and the total amount of the sewage will be 494,100 m3/d.After the completion of urban drainage projects, if without the newly construction of sewage treatment plants for matching, with the increase of the sewage amount and the concentrated pollution discharge outlets, it may lead to the pollution discharged into the Huaihe River much higher than the total amount of discharge sewage in 2005 and cause the adverse impact to the Huaihe River. The environmental evaluation will analyze the changes of the total amount of Bengbu City’s discharge sewage according to the different levels of sewage treatment. And the prediction evaluation of the water-environmental impact of Bengbu section of the Huaihe River.
The total amount control analysis will estimate the recent planning sewage amount in 2010 by the different sewage treatment capacity.
(1) Based on the current sewage treatment capacity, that is only maintain the treatment capacity of 100,000 tons/day of Xijiagou sewage treatment plant, and the water quality of untreated sewage takes the average value of current water quality, then estimate the total amount of the pollutants discharged into the Huaihe River.
(2) Suppose there will be Xijiagou sewage treatment plant only to treat the sewage at full capacity in 2010, with the treatment capacity up to 200,000 tons /day of the design scale, then estimate the total amount of the pollutants discharged into the Huaihe River.
(3) Suppose Xijiagou sewage treatment plant, the Yangtaizi sewage treatment plant and the Hebei sewage treatment plant all completed and put into operation according to plan, then estimate the total emissions of the pollutants.
The yearly different sewage treatment capacity and the estimated results of total emissions of the pollutants of Bengbu City planning are shown in Table 99, Figure 14, Figure 15 and Figure 16.
Table 100: Estimated table of yearly total emissions of the pollutants of
Bengbu City Planning
|Evaluation |Total emissions of |Treated sewage |Untreated |Change of total amount |Change of total amount |
|period |the pollutants |volume |volume | | |
| |10000 t/a |10000 t/a |10000 t/a | | |
| | | | |COD |Increase or decrease|Ammonia |Increase or |
| | | | | |% |nitrogen |decrease % |
|Current state |29.5 |10 |19.5 |20115 | |3713 | |
|of 2005 | | | | | | | |
|2010 |A |49.4 |10 |39.4 |37778 |+87.8% |
|S1 |Section of Bengbu sluice |0 |Scope of the Monitoring |85.2～2940 |2.6～4.3 |9.2～16.2 |
| | | |value | | | |
| | | |Average value |187.68 (dry)|3.3 (dry) |16.2 (dry) |
|W1 |Baligou pollution discharge|3.6/3.6 |Scope of the Monitoring |0.2-～1.46 |17.4～38.4 |120～469 |
| |outlet | |value | | | |
| | | |Average value |0.52 |25.8 |317 |
|W2 |Xijiagou pollution |6.4/2.8 |Scope of the Monitoring |0.3～1.86 |1.70～18.8 |34～224 |
| |discharge outlet | |value | | | |
| | | |Average value |1.37 |10.0 |110 |
|W3 |No.3 Dock pollution |8.4/2 |Scope of the Monitoring |0.04～0.17 |26.6～70.9 |117～339 |
| |discharge outlet | |value | | | |
| | | |Average value |0.11 |45.5 |207 |
|W4 |No.1 Dock pollution |9.4/1 |Scope of the Monitoring |0.09～0.13 |24.1～58.2 |120～464 |
| |discharge outlet | |value | | | |
| | | |Average value |0.10 |41.9 |240 |
|W5 |Jiaotong Road pollution |12/2.6 |Scope of the Monitoring |0.18～0.40 |23.0～61.1 |117～494 |
| |discharge outlet | |value | | | |
| | | |Average value |0.28 |40.8 |290 |
|W6 |Longzi pollution discharge |15.5/3.5 |Scope of the Monitoring |0.29～0.65 |20.6～56.4 |123～214 |
| |outlet | |value | | | |
| | | |Average value |0.48 |36.0 |160 |
|S2 |New railway bridge section |17/1.5 |Scope of the Monitoring | |0.08～2.96 |11.7～21.0 |
| | | |value | | | |
| | | |Average value | |1.05 |16.0 |
|W7 |Baojiagou pollution |26.5/9.5 |Scope of the Monitoring | |1.21～49.6 |25～717 |
| |discharge outlet | |value | | | |
| | | |Average value |0.032 |23.3 |300 |
|S3 |Mohekou section |30.5/4 |Scope of the Monitoring | |0.21～2.48 |10.7～21.5 |
| | | |value | | | |
| | | |Average value | |1.05 |14.5 |
|W8 |Pollution discharge outlet |32/1.5 |Scope of the Monitoring | | | |
| |of Mohekou Park | |value | | | |
| | | |Average value |0.35 |5 |50 |
| | | | | |(entering30) |(entering450) |
According to the drainage planning of Bengbu City, after the completion of this project, the recent sewage closure projects of Bengbu City in 2010 will be basically completed then, the sewage will be concentrated treated by Xijiagou sewage treatment plant, Yangtaizi sewage treatment plant and Hebei sewage treatment plant. The situation of sewage treatment system of Bengbu City in 2010 is shown in Table 101.
Table 102: Statistical table of drainage of Bengbu City’s sewage treatment plants 10000 m3/d
|Name of sewage treatment plant |Xijiahou |Yangtaizi |Hebei (Huaibei) |Mohekou Park |Total |
|Current state of 2005 |10 |— |— |— |14 |
|Planning of 2010 |20 |10 |2.5 |3 |35.5 |
|Location of pollution discharge|6.4km |16km |6km |32 | |
|outlet | | | | | |
|(below the Bengbu sluice) | | | | | |
|Outlet water quality |Implementation of GB18918-2002 Grade I A standard: CODcr 50mg/L ammonia nitrogen 5mg/L |
This environmental evaluation conducts the impact analysis of the water quality of Bengbu section of the Huaihe River (Section of Bengbu sluice-------Mohekou Section) and the prediction indexes are CODcr and ammonia nitrogen.
① Simulation of the pollution discharge section of the Huaihe River
According to the technical guidelines of environmental evaluation, the annual average flow of Bengbu section of the Huaihe River is more than 150 m3/s, which is the large river and can be simplified as the rectangular straight river.
② Simplify the pollution sources. Based on the evaluation level and the actual situation of Bengbu section of the Huaihe River, simplify the pollution sources as the consecutive constant emission point sources. The main sources of this system are: Xijiagou sewage treatment plant, Yangtaizi sewage treatment plant, Hebei sewage treatment plant and the sewage treatment plan of Mohekou Park, the upstream inflow of Bengbu sluice is also considered to be one influent pollution source of this system.
7.3.1.2.2 Choice of mathematical model
This evaluation uses meandering river steady-state mixed cumulative flow model, predict and evaluate the impact degree and scope of the project’s sewage to the water body of downstream.
Non-persistent pollutants：
[pic] q=huy
Mq=h2uMy
Of which：x—The distance between the prediction point and the discharge point, m;
y--Horizontal distance between the prediction point and the discharge point, m;
K1--Degradation coefficient of the pollutants in the river, 1/d;
c--Concentration of the pollutants at the prediction point(x,y), mg/l;
a—The distance between the sewage discharge outlet and the riverbank0≤a≤B), m.
cp--Concentration of the pollutants in the sewage, mg/l;
Qp—Sewage flow, m3/s;
ch—Concentration of the pollutants in the river upstream (background concentration), mg/l;
h--Average depth of the river, m;
My—Horizontal mixed (diffusion) coefficient of the river, m2/s;
u—Flow speed of the river, m/s;
Qh—Flow rate of the river, m3/s;
According to the provisions of NJ/T2.3-93,the horizontal mixed coefficient My is calculated by Taylor method:
[pic]
Of which: h--Average water depth, m;
g-- Acceleration of gravity,m/s2;
I—Hydraulic gradient, m/m;
B—River width, m.
The estimated value of parameter K1 is determined by two-point method:
[pic]
Of which: ΔX—Section distance of up-down stream, m;
C1, C2—Concentration of the pollutants of the up-down stream water body, mg/L;
u—Flow speed of the river, m/s;
• λ Evaluation scope, period and contents of the projection
The evaluation scope of surface water-environmental impact is the Bengbu section of the Huaihe River, and within the downstream 1500 of pollution discharge outlet of sewage treatment plant in Mohekou Fine Chemical Industrial Park (Sanpu River drainage pump station) with the distance of 32km.
• λ The contents of prediction include:
① Simulation of the current water quality to determine the parameters of water quality;
② Predict the water quality under the normal operation after the completion of the sewage treatment plants and evaluate the conditions of the water quality;
③ Predict the water quality of the accidental discharge of the sewage treatment plants and risk analysis the degree of the effects.
7.3.1.2.3 Parameter determination of the Huaihe River water system simulation
Because the flow of the Huaihe River changes greatly in the different years and seasons and affected by various upstream lock gates and other gates substantially. The environmental evaluation is intend to use the average flow 187.68m3/s of the Huaihe River during the drought period in the recent ten years, suppose there is no other influents, just has different pollution discharge outlets, then predict the impact of pollution discharge to the water environment of the Huaihe River.
Based on the monitoring data of the routine monitoring sections of Bengbu in 2005, according to the current pollution discharge volume and the concentrations of pollutants of the seven pollution discharge outlets, as well as the locations of pollution discharge outlets, we can calculate the attenuation coefficient KCOD=0.12d-1, KAmmonia nitrogen=0.08d-1 by using formula (1), formula (2) and the parameters.
7.3.1.2.4 Prediction of water quality of Bengbu section of the Huaihe River
① Prediction of the water quality of the sewage treatment plants under the normal operation
Till 2010, the total amount of Bengbu City’s sewage is about 494,000 m3/d, the total sewage treatment capacity of three urban sewage treatment plants and one Park’s sewage treatment plant is about 355,000m3/d, that is the urban sewage treatment rate shall reach 72% after the completion of the sewage treatment plants, which is in line with the requirements of 70% sewage collection treatment rate of the 2010 drainage planning. Summary of the inlet and outlet water quality of the four sewage treatment plants is shown in Table 102.
Table 103: Summary statement of inlet and outlet water quality of the sewage treatment plants
|Name of sewage |Inlet water quality |Outlet water quality |Water quality of |Water quality of untreated |
|treatment plant | |Grade I A standard |accidental discharge |Sewage |
| | | |(By 30% of the treatment |(Sewage system of the south|
| | | |rate) |of the City) |
| |CODcr |Ammonia nitrogen |
|A |Suppose the four sewage treatment plants all discharge up to standard|Four pollution discharge outlets |
| |The remaining sewage will be discharged into the Huaihe River through |(Xijiagou, the Longzi Lake, Small |
| |Xijiagou |Bengbu Station, the Sanpu River |
| | |drainage station) |
|B |Suppose the three urban sewage treatment plants all discharge up to | |
| |standard | |
| |Accidental discharge of Mohekou Park | |
|C |All the sewage treatment plants discharge with the failure to meet the| |
| |standard | |
|D |Completion of sewage treatment plant in the south of the City (155,000 | |
| |t/d) | |
| |Discharge all the sewage up to the standard | |
Specific conditions of the prediction for each proposal and the parameters selection are shown in Table 104.
Prediction parameters selection: The flow of upstream inflow of Bengbu sluice uses the average flow of 187.68 m3/s during the drought period of many years, the average flow speed is 0.11m/s; The background concentration of the pollutants uses the on-line monitoring average concentration CODcr for 16.2mg/L and ammonia nitrogen for 3.3mg/L during the drought period of Bengbu sluice section of the Huaihe River.
Table 105: Summary statement of conditions of prediction and parameters
|Proposal |Name of pollution |Name of sewage |Location of pollution |Water amount |Water quality mg/L |
| |discharge outlet |treatment plant |discharge outlet |10000 m3/d | |
| | | |(From section of Bengbu | | |
| | | |sluice) | | |
| | | | | |COD |Ammonia nitrogen|
|Proposal A |Xijiahou |Xijiahou |6km |20 |50 |5 |
| | |Untreated Sewage outlet| |13.9 |250 |45 |
| |Small Bengbu Station |Huaishang Hebei |6km |2.5 |50 |5 |
| |Longzi Lake |Yangtaizi |15.5 |10 |50 |5 |
| |Sanpu River pump |Mohekou Park |32 |3 |50 |5 |
| |station | | | | | |
|Proposal B |Xijiahou |Xijiahou |6km |20 |50 |5 |
| | |Untreated Sewage outlet| |13.9 |250 |45 |
| |Small Bengbu Station |Huaishang Hebei |6km |2.5 |50 |5 |
| |Longzi Lake |Yangtaizi |15.5 |10 |50 |5 |
| |Sanpu River pump |Mohekou Park |32 |3 |315 |21 |
| |station | | | | | |
|Proposal C |Xijiahou |Xijiahou |6km |20 |245 |28 |
| | |Untreated Sewage outlet| |13.9 |250 |45 |
| |Small Bengbu Station |Huaishang Hebei |6km |2.5 |280 |24.5 |
| |Longzi Lake |Yangtaizi |15.5 |10 |224 |24.5 |
| |Sanpu River pump |Mohekou Park |32 |3 |315 |21 |
| |station | | | | | |
|Proposal D |Xijiahou |Xijiahou |6km |33.9 |50 |5 |
| | |South of city | | | | |
| |Small Bengbu Station |Huaishang Hebei |6km |2.5 |50 |5 |
| |Longzi Lake |Yangtaizi |15.5 |10 |50 |5 |
| |Sanpu River pump |Mohekou Park |32 |3 |50 |5 |
| |station | | | | | |
This environmental evaluation conducts the prediction and analysis of water-environmental impact of Bengbu section of the Huaihe River according to the above four different drainage proposals, the prediction results are shown in Table 105, Figure 17, Figure 18 and Figure 19.
Table 106: Prediction table of water quality of the sewage treatment plant under the operation period
|Prediction section |Proposal A |Proposal B |Proposal C |Proposal D |
| |CODcr |
|New railway bridge section |28.13 |
From the data in Table 105 and Figure 17, Figure 18, Figure 19 and Figure 20, we can see that, the change trend of the concentration of pollutants in each evaluation section is: The water quality of new railway bridge section is in the rapid decline compared with the section of Bengbu sluice; the water quality of the downstream of Mohekou section is slightly better than in new railway bridge section, but still has some pollution compared with the water quality of the upstream inflow. For the prediction value of Mohekou section, the results of proposal A is clearly better than proposal B, which reflects the water quality of the sewage of Mohekou Park having the greater impact to the water quality of the Huaihe River.
The main difference between the proposal A and proposal B is that the water quality of downstream 3.5km of Mohekou section (downstream 2km of pollution discharge outlet of Mohekou Park) is close to the water quality of upstream inflow of Bengbu sluice basically. It indicates that once the sewage treatment plant can effectively play its sewage treatment capacity to ensure the tail water of the sewage treatment plant discharge up to the standard, then it will have little environmental impact to the downstream of Bengbu section of the Huaihe River.
The prediction results of proposal C show that, if the sewage treatment plants can not discharge the tail water up to the standard, the COD and ammonia nitrogen of new railway bridge section will over the standard of Class III water body; the prediction results of Mohekou section show that, through the attenuation of nearly 30km of Bengbu section, the ammonia nitrogen concentration in the sewage is still over the standard, which indicates the water quality of sewage discharged from Bengbu to the Huaihe River has the greater impact to Bengbu section of the Huaihe River and its downstream and it has the great significance for whether the water quality of the downstream of the Huaihe River can maintain the function of Class III water body.
[pic][pic]
Figure 17: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact
[pic]
[pic]
Figure 18: 2010 Urban Drainage Proposal C, D - Prediction Chart of CODcr Discharge Impact
[pic]
[pic]
Figure 19: 2010 Urban Drainage Proposal A, B - Prediction Chart of Ammonia Nitrogen Discharge Impact
[pic]
[pic]
Figure 20: 2010 Urban Drainage Proposal C, D - Prediction Chart of Ammonia Nitrogen Discharge Impact
Through the water quality prediction, this environmental evaluation put forward the following suggestions:
(1) Bengbu shall actively operate the supporting construction of the sewerage treatment projects and need to accelerate the pace of development; the urban infrastructure construction, especially the construction of the sewage pipe network and sewage treatment plants project shall be coherent with the development of the Bengbu new district. To ensure the Bengbu section of the Huaihe River maintains the function of Class III water body basically, the new construction and expansion of the sewage treatment plants is imperative.
Meanwhile, monitor and predict the serious situation of ammonia nitrogen index exceeding the standard of the water quality, as well as the treatment requirement for the ammonia nitrogen of 5mg/L in the Grade I A standard for the urban sewage treatment plants, we suggest the sewage treatment plants shall take into the enough consideration of the ammonia nitrogen removal efficiency when choosing the sewage treatment process. Treatment process must have strong capacity to remove the phosphorus and nitrogen.
(2) In order to minimize the pollution load to the downstream Bengbu of the Huaihe River, we shall in particular, strengthen the monitoring works for the sewage treatment discharge up to the standard of Mohekou Park. Especially the industrial and mining enterprises within the Park must do the pretreatment discharge up to the standard, from one hand, we shall avoid the industrial enterprises in the park to discharge the sewage into the Huaihe River directly; from the other hand, we shall prevent the pretreatment of the enterprises over the standard, further leads to the pollution load of the sewage entering the sewage treatment plant is too large for the normal operation, then a large amount of industrial wastewater will collection discharge with failure to meet the standard, which will cause the serious environmental pollution to the water environment of the Huaihe River. Thus, the emissions of industrial wastewater with the failure to meet the standard of Mohekou Park become the potential risk for the downstream water environment of the Huaihe River.
1. Water-environmental impact analysis of Mohekou sewage treatment plant
7.3.1.3.1 Water-environmental impact analysis during the normal operation period
(1) Investigation on Current Situation of Regional Surface Water
For the sewage treatment plant of Mohekou industrial Park and the supplementary pipe network project are still in the planning, the generated sewage of the enterprises within the Park and some living sewage of Mohekou town are discharged into the Huaihe River through Sanpu big ditch. Sanpu big ditch and the bypass channel of the Mochong River are two artificial irrigation ditches, the gates to the Huaihe River are basically closed except the flood discharge.
(2) The main contents of the prediction
After the completion of the sewage treatment plant, the enterprises sewage within the Park and the living sewage of the town will not be discharged into Sanpu big ditch directly any more; after the treatment, the sewage will achieve Grade 1 A standard, then is discharged into the bypass channel of the Mochong River and flows southward to the Huaihe River.
This evaluation mainly predicts the impact of the water quality of the Huaihe River after the completion of the projects, forecasts the contribution value of the concentration of the of the pollutants in the river because of the sewage discharge of the sewage treatment plant, as well as the distribution of the concentration of pollutants in the river.
(3) Predictive factor and model
• λ Predictive factor
The predictive factor of water-environmental impact is COD.
• λ Predictive model
This evaluation uses meandering river steady-state mixed cumulative flow model, predict and evaluate the impact degree and scope of the project’s sewage to the water body of downstream.
Non-persistent pollutants:
[pic] q=huy
Mq=h2uMy
Of which：x—The distance between the prediction point and the discharge point, m;
y--Horizontal distance between the prediction point and the discharge point, m;
K1--Degradation coefficient of the pollutants in the river, 1/d;
c--Concentration of the pollutants at the prediction point(x,y), mg/l;
a—The distance between the sewage discharge outlet and the riverbank0≤a≤B),m.
cp--Concentration of the pollutants in the sewage, mg/l;
Qp—Sewage flow,m3/s;
ch—Concentration of the pollutants in the river upstream (background concentration), mg/l;
h--Average depth of the river, m;
My—Horizontal mixed (diffusion) coefficient of the river, m2/s;
u—Flow speed of the river, m/s;
Qh—Flow rate of the river, m3/s;
According to the provisions of NJ/T2.3-93,the horizontal mixed coefficient My is calculated by Taylor method:
[pic]
Of which: h--Average depth, m;
g-- Acceleration of gravity,m/s2;
I—Hydraulic gradient, m/m;
B—River width, m.
The estimated value of parameter K1 is determined by two-point method:
[pic]
Of which: ΔX—Section distance of up-and down-stream, m;
C1, C2—Concentration of the pollutants of the up-down stream water body, mg/L;
u—Flow speed of the river, m/s;
According to the statistics of Hydrologic Data in the calendar years of Bengbu section of the Huaihe River, the average flow of the Huaihe River during the drought period in the recent ten years is 187.68 m3/s, during the gate close period, Bengbu section of the Huaihe River just has the discharge of 12.5 m3/s under the gate open. Considering the gate close during the drought period of Bengbu sluice of the Huaihe River, we can get the relationship of the flow speed and the flow:
u=0.01025Q0.8733
• λ Parameter Selection
The specific hydrological parameters are as follows: Uclose=0.009m/s; Qclose=12.5 m3/s; h=3.0m;B=300m; I=2.9*10-5;K=0.16L/d (Select the water capacity of Bengbu City to check the experience value of the research result, and use two-point method to check the routine monitoring data of the sections of the Huaihe River); My=0.062m/s; Ch=12.2mg/L (Monitor the maximum COD of the current situation).The treatment scale of the sewage treatment plant is 30,000 m3/d, during the normal discharge of the sewage: Qp=8.33 m3/s;Cp=50mg/L.
• λ Prediction Result
Integrate the prediction parameters into the formula to calculate the COD prediction result of each monitoring section after the completion of the projects. Prediction results are shown in Table 106.
Table 107: Prediction results of water quality during normal operation period of the sewage treatment plant
Unit: mg/L
|C(mg/m3) |30m |60m |90m |120m |150m |
|y | | | | | |
|x | | | | | |
|T-N |The first time |6.39 |0.855 |0.77 |1.2 |
|mg/L | | | | | |
| |The second time |8.31 |1.76 |10.2 |1.8 |
|T-P |The first time |0.845 |0.043 |0.043 |0.071 |
|mg/L | | | | | |
| |The second time |1.21 |0.100 |0.044 |0.099 |
From the date in the table, we can see that, the two monitoring N and P contents can be different by 10-20 times. For the reasons, besides the differences of the pollutant content in the sediment, the “screen role” to the Sediment of the different dredging operation conditions and the working conditions of the stack fields is also the one of the reasons.
This evaluation conducts the prediction (determine the total nitrogen as per the ammonia nitrogen index) of the normal discharge of the wastewater according to the Grade I emission standard of Integrated Wastewater Discharge Standard (GB8978-1996).During the later period, it may cause the abnormal emissions of the project engineering wastewater because of the short stay time, storm runoff and other factors. In the Dianchi River dredging project, the maximum concentration SS of the wastewater discharge is 380mg/L, TN is 38.76mg/L and TP is 4.60mg/L.The prediction of this environmental evaluation under the abnormal emissions takes the reference of the highest emission concentration of the wastewater of the Dianchi River dredging operation for calculation.
Table 111: Prediction emission concentration of project engineering wastewater
Unit: mg/L
| |Total nitrogen |Total phosphorus |
|Normal emission |15 |0.5 |
|Abnormal emission |38.76 |4.6 |
• λ Prediction Result
Through the calculation of the prediction model, the impact results of the wastewater emission to the water quality of the Longzi Lake are shown in Table 111.
Table 112: Prediction of the contribution value of the concentration of the wastewater emission to the water quality of the Longzi Lake
Unit: mg/L
|Normal emission |Distance from the |TP |TN |
| |outlet | | |
| | |Predicted |Contributed |Predicted |Contributed |
| | |concentration |concentration |concentration |concentration |
| |100 |0.70 |0.45 |14.5 |13.06 |
| |200 |0.57 |0.32 |10.0 |8.56 |
| |400 |0.34 |0.09 |3.02 |1.58 |
| |500 |0.28 |0.03 |1.89 |0.45 |
| |600 |0.26 |0.01 |1.54 |0.1 |
| |800 |0.25 |0 |1.44 |0 |
|Abnormal emission|100 |4.37 |4.12 |35.1 |33.66 |
| |200 |3.21 |2.96 |23.5 |22.06 |
| |400 |1.04 |0.79 |5.53 |4.09 |
| |500 |0.54 |0.29 |2.60 |1.16 |
| |600 |0.34 |0.09 |1.69 |0.25 |
| |800 |0.254 |0.04 |1.44 |0 |
From the above prediction results, we can come to the following conclusions:
1. Within 400m distance from the outlet of project engineering wastewater, the regional concentration of the pollutants in water is decrease rapidly with the increase of the distance; TN and TP concentrations in the water body are close to the background concentrations at the 600m from the outlet of project engineering wastewater.
2. The impact scope of TP and TN to the water quality of the Longzi Lake is about 600m.
Under the normal wastewater emissions of the stack field, the contribution values of the concentration of TP and TN at the 450m from the outlet of project engineering wastewater are lower than the standard values of Class Ⅲ water quality of Environmental Quality Standard for Surface Water. Under the abnormal emissions, when TN is at about 550m from the outlet of project engineering wastewater and TP is at about 800m from the outlet of project engineering wastewater, the both contribution values of the concentration are lower than the relating provisions of Class Ⅲ water quality standard of Environmental Quality Standard for Surface Water.
[pic]
Figure 21: Prediction results of project engineering wastewater discharge on the water
7.3.1.4.3 Longzi Lake water-environmental impact analysis of slurry transportation pipeline accident
As the span between the Longzi desilting spot and stack field is larger, so the slurry transportation pipeline of the project is also longer; Because affected by many factors such as the slurry transportation pipeline enduring the uneven pressure, pipeline quality, existing problems during the pipeline construction, it is possible to happen the pipeline rupture or leaking phenomenon which results in the slurry leakage. Once the pipeline is rupture, the slurry will infuse into the River again, which will have a certain degree of the impact to the water quality of the Longzi Lake. We shall inspect the slurry transportation pipelines regularly during the construction period, in order to avoid the pipeline rupture.
7.3.1.4.4 Secondary pollution analysis of dredging project
Sediment dredging is one of the important measures to manage the internal pollution of the River. However, the sediment dredging is a massive man-made interference, the dredging works will promote the emissions of nutrient salts, heavy metals and other pollutants, so as to have some negative impacts to the environmental quality of the water body.
According to the comparative study of the water quality before and after the dredging in the Taihu Lake in Water Quality Risk Assessment for Sediment Dredging Operations in the Taihu Lake (compiled by Liu Aiju, Kong Fanxiang, Wang Dong), during the dredging operation period and the short time after the end of dredging, the total suspended solids, toxic metal ions and the contents of nitrogen, phosphorus and other nutrient salts in the water body increase, while the water transparency is lower down. The main reason is the dredging works making the surface sediment to resuspend, thus promoting the release of the nitrogen, phosphorus etc. nutrient salts and the toxic heavy metals in the sediment. Such environmental impact will go on for some time, after 2 months of the end of the dredging project, the contents of the suspended solids, heavy metal pollution levels and the contents of nitrogen, phosphorus etc. nutrient salts begin to decrease, which shows that, after the dredging, the suspended solids and absorbed nutrient salts, heavy metals ions in the water body can happen the quickly sedimentation. But compared with the situation before the dredging, the water-environmental quality of the inner River after nine months of the dredging is lower than the level before the dredging. After one year of the dredging, the water quality is increased and all the indicators are lower than the level before the dredging. This indicates the sediment dredging can improve and upgrade the water quality of the River.
7.3.1.4.5 Analogy analysis of water-environmental improvement after the desilting of the Longzi Lake
The pollution sources for water eutrophication can be divided into the outer sources and the inner sources. The River sediment is an important nutrient reservoir for the River, after the decrease of the influent nutrient salts load or complete interception, the nutrient salts in the sediment will be released gradually and become the dominant factors for the River eutrophication.
At present, the Longzi Lake has completed the closure, Yangtaizi sewage treatment plan is under the construction, which is expected to complete and put into use till the end of 2007.Therefore, the sediment of the Longzi Lake becomes the main factor to impact the water quality of the Longzi Lake. There are more villages around the South River, the living sewage of the villagers has been discharged into the Longzi Lake directly without any treatment, the South River mainly collects the farmland runoff, living sewage of the neighboring residents and the influents from the South mountains, so the eutrophication level of the South River sediment is higher and it is special important to remove the South sediment with eutrophication. The South River’s area accounts for nearly 50% of the total area of the Longzi Lake, the dredging for the polluted sediment of the South River is equivalent to remove a huge surface pollution source, furthermore, it can also increase the storage capacity and the self-purification capacity of the River. The following table is the comparison of the water quality before and after the implementation of the Chaohu River dredging project.
Table 113: Comparison situation of water quality before and after the implementation of the Chaohu River dredging project
Unit: mg/L
|Year |Water intake of first water treatment plant |Inner River district of Xibakou |
|Project | | |
| |1998 |1999 |2000 |2000 |2001 |
| |
From the prediction results in the table, we can see that: The influential distance of the Tianhe drainage pump station running noise is 224m at nighttime and 71m at daytime; the influential value at 80m from the pump station is 54 dB (A), which meets the daytime sound environmental standard, but exceeding the standard at nighttime.
The main sensitive points of the surrounding environment during the operation of the Tianhe drainage pump station are the Xuying Country at 500m southeast and the Production & living Management Area of Tianhe drainage pump station (located at nearly 80m northeast of the main pump house), which indicates the operation of the Tianhe drainage pump station will not cause the noise impact to the Xuying Country’s environment, but will make some noises to the workers of the living management area during the nighttime. But Tianhe drainage pump station will only be used during the flood season, the noise pollution is a short-term, temporary influence, with the little impact to the employees of the Drainage Pump Station.
2. Longzi Lake drainage pump station
After the completion of the Longzi Lake drainage pump station, the noise mainly comes from the running noise of the pump motor and the air compressor system, wherein the noise source intensity of single pump unit is 75-85dB (A) generally; the main device of the air compressing system in the main pump house is the air compressor, whose noise source intensity is 85-95 dB(A), while the indoor reverberation noise is 90-100dB (A).
There are five water pump units in the Longzi Lake drainage pump station, calculate by five pumps at most at the same time and use the sound source superposition formula to calculate the source intensity.
[pic]
Of which: LPtotal——Sound pressure level at one sound receptive point, dB(A);
Lpi——Sound pressure level at i sound source to the sound receptive point, dB(A);
n——Total number of the sound sources.
When five pumps running together, the noise source intensity is 92 dB (A), the noise impact of the pumps and the air compressor running will use the point source attenuation formula to predict:
[pic]
Of which: LA(r)——A sound pressure at r point from the sound source, dB(A);
LA(ro)——A sound pressure at ro point from the sound source, dB(A);
r, ro——Distance, m.
Wherein the noise of the main pump house use the noise prediction model:
[pic]
Of which: LP —Generated sound pressure level of the point sound source at the prediction point;
LA —Sound pressure level at the reference location R;
△L—The caused attenuation by various factors, at the semi-free space of the sound source, △L is 8;
Usually, the sound isolation of the equipment station is 15～25 dB(A), this environmental evaluation predict the attenuation is 20 dB (A). The prediction results of the pump station running noise impact are shown in the following Table 114:
Table 115: Prediction results of the Longzi Lake drainage pump station’s noise
|Noise source |Source intensity |Influential distance(m) |Influential |Background value dB(A) |Superposition value dB(A) |
| |dB(A) | |value at 70m | | |
| | | |from the pump | | |
| | | |station | | |
| |
From the prediction results in the table, we can see that: If not consider the environmental background noise, the influential distance of the Longzi Lake drainage pump station running noise is 71m at daytime and 224m at nighttime. The influential value of the water pump units to the Xingfu Country is 55.1 dB(A) and the influential value of the main pump house is 43.1 dB (A).Because the background noise of Xingfu Country is higher, so the noise after the superposition of the running noise of the Longzi Lake drainage pump station and its background noise is over the standard.
From the above results, the operation of the pump station will cause the adverse impact to the sound environment of Xingfu Country. However, the pump station will only be used during the flood drainage, so its impact to the surrounding sound environment is short-term. In addition, this project is under the most adverse circumstance of five pumps running at the same time, therefore, in the actual operating circumstances, the influence extent and scope will be less than the prediction results of this report.
3. Noise prediction of Huaishang Binhe Ave.
7.3.3.3.1 Prediction parameters
The proportional allocation of the road large, medium and small vehicles is 8%, 30% and 62% respectively, while the traffic volume ratio of the daytime to the nighttime is 0.75: 0.25.The road prediction parameters are shown in Table 72.
7.3.3.3.2 Prediction model
Use the road noise prediction model of Federal Highway Administration (FHWA) to predict the road traffic noise.
Divide the road vehicles as the vehicle classification (such as, large, medium and small cars), then calculate the hour equivalent sound pressure of a certain type of vehicle.
[pic]
Of which:
Leq(h)i--Hour equivalent sound pressure of the i vehicle, dB(A);
--The average radiation sound pressure of the reference energy of the i vehicle, dB(A);
Ni—The traffic flow passing a certain prediction point of the i vehicle within the designated time T (1h);
D0—The distance to the reference position of measuring the radiation sound pressure of the vehicle, D0=15m;
D—The vertical distance from the center lane to the prediction point, m;
Si—Average speed of the i vehicle, km/h;
T—Time for calculation the equivalent sound pressure, 1h;
a--Ground cover coefficient, which depends on the ground conditions at the site, a=0 or a=0.5;
Φa--Correction function on behalf of the section of the road with the limited length, wherein theΨ1, Ψ2 are the opening angles (rad) at the both ends of the section of the road with the limited length, see attachment B1;
ΔS—Attenuation value which caused by the shelters, dB(A);
Of which:
[pic]
[pic]
The equivalent sound pressure of the mixed traffic flow pattern is obtained by the superposition of the equivalent sound pressures of the various traffic. If divide the traffic flow into the large, medium and small cars, then the equivalent sound pressure of the total traffic flow is:
[pic]
7.3.3.3.3 Prediction Results
Prediction results are shown in Table 72.
Within 50m area on both sides of the road, implement Class IV standard of “Standard of environmental noise of urban area” (Daytime 70dB(A)and nighttime 55 dB(A)), from the prediction results, we can see that:
Table 116: Prediction parameters table of typical sections’ noise
|Section |Road |Distance to |Traffic flow (vehicle/day) |Prediction |
| |parameter |prediction | |period |
| | |position | | |
| | |(from the | | |
| | |center lane) | | |
| | | |
| | |20m |30m |40m |
|Cu |19.02 |40.13 |400 |500 |
|Pb |119.80 |104.60 |500 |1000 |
|Zn |65.58 |178.67 |500 |1000 |
|Cr |186.80 |350.33 |300 (Dry land) |1000 |
| | | |400 (Paddy field) | |
|As |16.40 |15.91 |40 (Dry land) |75 |
| | | |30 (Paddy field) | |
|Cd |0.35 |0.45 |1.0 |20 |
|THg |0.04 |0.01 |1.5 |15 |
As the soil of the stack field will be covered by the dredging sediment, the use patter of the soil will be changed completely. The bottom of the stack field is the clay layer with the poor penetration, the enclosure soil will carry out the anti-seepage treatment by the geomembrane, and therefore the original soil will not be affected. After the completion of the stack field transportation and spread, we will plant trees or create the landscapes according to the actual situation; the surface soil is the dredging sediment, whose soil feature value will be decided by the sediment.
Because the land use pattern has been changed, the original farm or fish ponds will be transformed into the landscape green spaces, not as the agricultural productive land, so it will not cause the harm to the human health.
4. Analysis of disposal way of Xijiagou dredging sludge
Xijiagou dredging project has Baligou and Xijiagou such two dredging rivers, with a total length of 11km. Wherein, upstream river at the south of Yanshan Road, Xijiagou is 6.2km, while the river at the south of Tushan road, Baligou is 4.8km.The excavation along the project is 437,600 m2 in total and the fill is 170,000 m2. Of which, the excavation of Xijiagou project is 375,100 m2 and the excavation of Baligou project is 52,500 m2. Baligou project includes the flood control construction, it shall fill up the beach land to 23.5m of the designed height, thus the fill is about 170,000 m2.
The generated sludge of Xijiagou dredging river will be placed nearby. Wherein, the sludge since Yanshan Road to the Southern wall of Naval Academy will be abandoned at the eastern coast and the rest will be placed on both sides of the ditch. The designed height of the mounded soil is 2.0m, the slope is 1:3, the width of the mounded soil will depend on the soil amount of the section, leave the beach land with 10m width between the mounded soil and the mouth of the ditch. The sludge of Baligou project will be placed nearby and used as the fill for flood control project.
7.3.4.2.1 Environmental impact analysis of sludge disposal
Some houses of the surrounding residents are close to the river at the Yinhe Bridge, Yanshan Road, Xijiagou, therefore the dredging project will have some impact on the residents living nearby. The water content of the dredging sludge is high, if placed at the shore, it will have the leachate, especially on the rainy days, the leachate may be washed into the river, thus affect the water quality of the water body. If the muddy water is washed into the urban roads, it will also affect the sanitation of the surrounding roads. The placed sludge at the shore, after the dry, the sludge is apt to generate the dusts through the vehicles driving. Because of the numerous emissions of the living sewage and industrial wastewater in the river, as well as the piled living garbage, the stack field for dredging sludge will have the foul smell, especially in the summer, which mainly dues to the rot of the living garbage.
7.3.4.2.2 The reasonable analysis of the sludge disposal method
The dredging sludge shall be internal used of this project, to keep the earthwork balance, so as to reduce the volume of sludge dump and outer transportation, further to mitigate the adverse environmental impact of the dredging sludge.
The residents and the enterprises at the both shores of Xijiagou set the pollution discharge outlet privately, the living sewage was discharged into the river without any treatment, as well as the piled garbage along the both shores, which seriously affect the surrounding environment of Xijiagou. At present, there is serious sediment in the river, the surface sludge has the higher nutrient content which affected by the discharge of the surrounding production wastewater, living sewage and the dump of the living garbage. Compared with the background values of Anhui Province, the mercury content in the sediment of Xijiagou and Baligou is 2.2~2.9 times of the soil background value of Anhui Province, which mainly because of the discharge of the production wastewater, if the disposal is not proper, then it may cause the ecological harm to the local aquatic ecosystem.
7.3.4.2.3 Sludge heap
According to the monitoring results of Baligou and Xijiagou sediment, the monitoring sediment meets the requirements of Grade III of Soil Environmental Quality (GB15618-1995), which can be heaped up nearby, after the drying, we can plant trees above them. However, in order to avoid the heavy metal materials affecting local groundwater environment during the place of the sediments, we shall place the anti-seepage membrane below the stack field before the place of the sludge. As the surface sediment contains higher organic matters, the foul smell impact is more obvious. If want to heap up the sludge along the shore, we shall take effective measures to control foul smell pollution.
• υ Used as farmland and forest land
Table 74 compares the monitoring sediment of Baligou and Xijiagou with the Grade III standard of Soil Environmental Quality (GB15618-1995) and Control Standards for Pollutants in Sludges from Agricultural Use (GB4284-84).From the table, we can see that, the monitoring sediment of Baligou and Xijiagou both meet the requirements of Grade III standard of "Soil Environmental Quality" (GB15618-1995) and Control Standards for Pollutants in Sludges from Agricultural Use (GB4284-84), which shows that the dredging sludge is up to the requirement of protecting the production of farming & forestry and the normal growth of plants, as well as no harm or pollution to the plants and the environment basically. From the monitoring results of Baligou and Xijiagou sediment, we found that the organic matter content of the two rivers is relatively high, with the soil fertility is better. Therefore, the project may consider placing the dredging sludge along the spot and using the sludge as the farmland, forest land and fill. The environmental evaluation suggests using the generated sludge of Baligou dredging as the soil for green belt along Baligou.
Table 119: Comparison of Baligou, Xijiagou sediment with the standard
Unit: mg/kg
|Monitoring point |Organic matter |Arsenic |Lead |Mercury |Chromium |Total phosphorus |Total |
| |(%) | | | | | |nitrogen |
|1# (Baligou) |2.04 |10.36 |35.5 |0.064 |34.6 |1.88 |75.111 |
|2# (Xijiagou) |7.01 |13.06 |42.5 |0.085 |60.4 |3.22 |59.796 |
|(GB15618-1995) |— |30 (Paddy |500 |1.5 |400 (Paddy |— |— |
|Grade III standard | |field) | | |field) | | |
| | |40 (Dry land )| | |300 (Dry land ) | | |
|GB4284-84 |— |75 |1000 |15 |1000 |— |— |
• υ Used as fill
The flood control project of Baligou needs the fill for about 170,000 m2. Xijiagou dredging will generate the excavation of nearly 375,000 m2, we can consider using the better sludge at the lower as the fill for flood control project of Baligou. But before using the Xijiagou dredging sludge as the fill for flood control project of Baligou, we shall inspect the soil quality, to ensure the soil quality meet the requirement of the project.
• υ Transport to refuse landfill
As some districts of Xijiagou, the surface has the mixture of the living garbage and construction wastes, so it can not be used as the fill or agricultural soil. Moreover, the surface sediment has higher organic matter content, which will have a more obvious foul smell, therefore it is unsuitable to place along the shore and need to transport to the refuse landfill for sanitary landfill.
The Sanitary Landfill of Bengbu City located in the southern slope of Laoshaoxi, that is 1.5km northeast of the east of Lilou country, with a distance of 13km from the City’s center. Its engineering design scale is 800t / d, with the total capacity of 4 million m3. The Sanitary Landfill uses the new technology of "quasi-aerobic landfill", that is after the transportation of the garbage, it will conduct the earth covering and rolling. Till the landfill to the designed height, it will conduct the medium-term covering and closure. We shall plant the grass or shallow-rooted plants on the final coverage soil. The garbage leachate uses the anaerobic lagoon treatment process. After the anaerobic lagoon treatment and the leachate achieved the Grade III standard of Standard for Pollution Control on the Landfill Site for Domestic Waste (GB16889-1997), transport it to the First Sewage treatment plant of Bengbu City for centralized treatment.
The Sanitary Landfill of Bengbu City was completed at the end of September, 2004, with the service life of 16 years. According to the disposal scale of the refuse landfill, it can receive part of the generated dredging sludge which contains the living garbage and the construction wastes.
To avoid generate the leachate during the transportation of the dredging sludge to sanitary landfill, and have the adverse environmental impact along the way, the dredging sludge shall be natural dried before the transportation to the landfill.
7.3.4.2.4 Conclusion
Summarizing the above analysis, as the surface sludge of Xijiagou is affected greatly by the discharge of the living garbage, construction wastes and living sewage, this report recommend that, the surface sludge of Xijiagou which doped with the living garbage and construction wastes is not suitable for place on spot or reuse, which shall be sent to the Sanitary landfill for sanitary landfill. Lower soil is better, the dredging soil which meets the requirements of the fill can be used as the fill for flood control project of Baligou. The remaining part can be placed at both sides of the ditch, we shall place the anti-seepage membrane below the stack field before the place of the sludge, after the completion of the deposition, plant the vegetation to reduce soil erosion on the above of the dredging yard.
5. Analysis of sludge disposal of Mohekou sewage treatment plant
The main solid wastes of sewage treatment plant are composed of grille residual, grit chamber sediment, dewatering sludge and the living garbage of the workers, under certain temperature and humidity, especially in the hot weather, these substances are apt to decay and stink by the microbial function, wherein the dewatering sludge has the largest impact on the surrounding environment, whose main characteristics are:
① High water content (≤80％),easy to lose;
② Fine particles and poor water permeability;
③ Easy to become a breeding ground for mosquitoes and thus become the spread source of the diseases;
④ Easy to generate the leachate, once the water pollutants enter into the water body, they will pollute the surface water and groundwater.
The generated volume of the solid wastes of the proposed project during the operation period is shown in Table 76.
Table 120: Emissions of main solid wastes of sewage treatment plant
|Name of project |Type of solid waste |Discharge amount |Water content |
|Sewage treatment plant |Grille residual |1.8m3/d |85～90％ |
| |Grit chamber sediment |0.9m3/d |60％ |
| | Residual sludge |14.3m3/d |75％ |
| |Living garbage |30kg/d |— |
1. Environmental impact of the sludge dewatering
Generally, it need to concentrate before the sludge dewatering, the concentrated tank often emit the foul smell, especially in the hot summer, there is often floating sludge on the pool surface, which is very easy to breed the mosquitoes.
After the concentration, during the sludge dewatering, the dewatering room will emit the foul smell; if there is any leakage during the operation of the sludge dewatering, it will cause the environmental pollution.
2. Environmental impact of the sludge dump process
The dewatering sludge shall be clean and transported in time, for the sludge which can not be timely removal, it shall have the temporary storage place. The dewatering sludge will form the muddy when meet with the water, with the good mobility and easy to lose; by the rainwater washing, the leachate will contain lots of pollutants to pollute the ground surface and groundwater bodies. Therefore, the dewatering sludge can not be placed at ease, we shall set up the temporary stack field after the special treatment and have the anti-seepage layer, as well as adding the awning; In addition, the dewatering sludge is not completely stable, so the long-term storage of the sludge will have the anaerobic digestion. The generated stench of H2S and other materials will affect the air quality; the dump place of dewatering sludge is a also a breeding ground for mosquitoes, which have the adverse impact to the sanitation. Given the above reasons, the dewatering sludge shall be timely removed, avoid piling up in the factory.
3. Environmental impact of the sludge transportation
Despite the sludge has been treated within the factory at varying degree, but the sludge still have some harmful pollutants. The sludge of the sewage treatment plants of this project just through the concentration and dewatering treatments, which can not achieve the requirements of stable and harmless, the sludge contains large amounts of the corruptive organic matters and other pathogenic microbes, such as Escherichia coli, eggs of ascarid. Therefore, the environmental problems during the transportation of sludge are very important.
Currently, the main transportation of sludge is the vehicle-transporting. If the vehicle body and the wheels contaminated by the sludge during the loading and unloading process, or the closeness function of the vehicle is not good, then the vehicle will leak the sludge around the sewage treatment plant or along the road, which will create the pollution to the road. The transport mode of the sludge shall stop the phenomenon of cross-flow of muddy water and the foul smell. Sewage treatment plant shall use the closed special vehicles, which can prevent the leakage of water, the leakage of soil and its disturbance. Meanwhile, the sludge transportation time shall be strictly controlled, avoid the peak traffic times as far as possible. In short, the transportation of sludge is a problem that can not be ignored, it must be taken seriously.
4. Disposal method of the sewage treatment plant’s sludge
The sludge is a product during the sewage treatment process, it is an important component of the sewage treatment, the aim of the sludge treatment it to reduce the water content of the sludge and sludge volume, so as to achieve a stable state, and create the conditions for further disposal and comprehensive utilization, the general process is "concentration- dewatering -disposal" or "concentration –digestion –dewatering -disposal."
According to the feasibility study of the project, due to the sewage treatment process of this project uses the biological nitrogen and phosphorus removal process, the sludge age is longer, the sludge state is more stable, can not carry out the nitrification treatment, but if use the nitrification treatment, we shall increase a series of structures and equipments of the digestion pool, heating, mixing and marsh gas handling etc., at the same time, it need to increase the investment, for the land area of the sewage treatment plant in the park is limited, so it can not construct the nitrification treatment system for the sludge.
According to the analogy information, the sludge component of the sewage treatment plant has some relationship with the water quality of the treated sewage. For the sewage treatment plant which mainly treats the industrial wastewaters, the components of its residual sludge will have higher content of the heavy metals, which is far beyond the standard of agricultural sludge; therefore, this environmental evaluation recommends not to use the sludge as the farmland fertilizer, but to conduct the safe landfill disposal.
5. Disposal of the grille residual and sediment
The grille residual and grit chamber sediment are both the garbage of the sewage treatment plant, must be collected, stored and transported properly. Recommend to be transported to the refuse landfill together with the living garbage. The specific storage, packaging and transportation etc. must be in accordance with the relating provisions strictly. Although its generated volume is not big, but if ignore it, it will cause harm to the environment. The light waste plastic bags and other packaging will wind waft around the sewage treatment plant; the sediment or the floating sediment must be removed timely, otherwise they will stink, decay and breed the mosquitoes.
6. Environmental impact of disposal of living garbage
The proposed sewage treatment plant will generate less living garbage, it can be cleaned and transported along with the grille residual and grit chamber sediment, no need to treat alone. But the clean and transport must be timely, otherwise, the long-term storage will make the garbage dump become the breeding grounds for mosquitoes, which also have the adverse impact to the plant sanitation. The clean and transport process shall also be in line with the health and safety procedures strictly, avoid spill and disturbance along the road, thus cause the pollution on the environment.
7. Summary of refuse landfill
The Sanitary Landfill of Bengbu City located in the southern slope of Laoshaoxi, that is 1.5km northeast of the east of Lilou country, with a distance of 13km from the City’s center. Its engineering design scale is 800t / d, with the total capacity of 4 million m3. The Sanitary Landfill uses the new technology of "quasi-aerobic landfill", that is after the transportation of the garbage, it will conduct the earth covering and rolling. Till the landfill to the designed height, it will conduct the medium-term covering and closure. We shall plant the grass or shallow-rooted plants on the final coverage soil. The garbage leachate uses the anaerobic lagoon treatment process. After the anaerobic lagoon treatment and the leachate achieved the Grade standard of “Standard for Pollution Control on the Landfill Site for Domestic Waste” (GB16889-1997), transport it to the First Sewage treatment plant of Bengbu City for centralized treatment.
The Sanitary Landfill of Bengbu City was completed at the end of September, 2004, with the service life of 16 years. According to the disposal scale of the refuse landfill, it can receive the generated dredging sludge of this project.
3. Atmospheric Environmental Impact Analysis
1. Project of sewage treatment plant
7.3.5.1.1 Meteorological characteristics of pollution
(1) Temperature, wind direction and wind speed
The evaluated district locates in the transition zone of the subtropical zone and warm temperate zone, with the four distinct seasons and a mild climate, the average annual temperature is 15.6℃; The statistical results of the meteorological information in the recent five years show that, the yearly dominant wind direction of Bengbu City is east-northeast (ENE), with the frequency of 11%, the secondly dominant wind direction is northeast (NE) and east (E), with the frequency of 8%.Due to the impact of the seasonal weather, the wind direction and frequency present the different characteristics during the different season; the average annual wind speed is 2.73m/s, for the average wind speed in each season, the wind speed in Spring is the maximum, while in Autumn is the minimum. The yearly and seasonal average temperature and wind speed are shown in Table 77, the statistical results of annual wind direction are shown in Table 120, the annual wind direction rose diagram is shown in Figure 22.
Table 121: Statistical table of seasonal and yearly average temperature and wind speed of Bengbu City
|Season |Winter |Spring |Summer |Autumn |Whole year |
|Average temperature (℃) |1.31 |15.6 |28.2 |16.7 |15.6 |
|Average wind speed (m/s) |2.76 |2.61 |2.57 |2.69 |2.73 |
Table 122: Statistical results of wind direction and frequency in each month of the year
|Month |1 |2 |3 |4 |5 |6 |
|Wind direction | | | | | | |
|Spring |0.2 |3.2 |6.9 |48.4 |19.1 |22.2 |
|Summer |0.3 |2.8 |8.5 |58.3 |14.4 |15.7 |
|Autumn |0.5 |3.0 |8.2 |58.7 |17.3 |12.3 |
|Winter |2.6 |9.2 |8.2 |50.5 |15.5 |14.2 |
|Whole year |0.9 |4.6 |7.9 |54.0 |16.1 |16.1 |
(3)Rainfall
The regional average rainfall information of many years is shown in Table 123.
Table 124: Rainfall Characteristics Table
|Month |1 |
|H2S |155 |
|NH3 |44 |
Around the sewage treatment plant is the open space, within the distance of 200m, there is no environmental protection target. But at the south of sewage treatment plant is the Bang-Ning highway, although the distance between the sewage treatment plant and the buildings emitting the orders meet the requirements of ”Quality Standard for Construction of Municipal Wastewater Treatment Plant Engineering”, but in order to reduce the impact, we shall construct the green protective buffer belt around the plant (the width is better to be10m, for the green protective buffer belt at the south of the factory boundary shall be appropriately widened and densified), and we shall plant the flowers and trees within the factory to block the diffusion passes of odor pollutants. In addition, the sewage treatment plant should adjust the layout of the factory appropriately, place the buildings which emitting the odors at one side far from the road and arrange the office within the sewage treatment plant at the upwind.
8. Mitigation Measures
1. Prevention & control measures for pollution under construction period
1. Prevention & control measures for ambient air pollution
The main pollutants of this project produced under construction period are dust, odor and motor vehicle emissions.
（1）Prevention & Control Measures for Odor Pollution
①After the completion of pollution interception project on two banks, river training works are operated in sections in the period of low flow, the cleanout garbage are immediately sent to the designated place for decontaminated treatment;
②The sludge, which is dug out in river training works, should be transported outside immediately, and it is not allowed to pile up the sludge along the project line within the scope of 30 cm, where has environmental sensitive point. hermetically sealed tank car is adopted in the process of transportation in order to avoid spattering on the way and prevent the production of odor pollution, for fear it influences the residents near by. If that sludge can not be temporarily transported outside, the bottom mud should be put into straw bag for storage in order to reduce the dust and odor emission;
③If the sludge can not be immediately cleaned and transported, the bottom mud should be put into straw bag for storage in order to reduce the dust and odor emission and avoid the impact on quality life of the residents near by;
④More attention should be given to personal protection of building team, inspection and rescue.
⑤River dredging should be avoided to be done in summer.
（2）Prevention & Control Measures for Dusty Pollution
① Shall strengthen the management, construct civilizedly and load & unload building materials; wheel washing installation should be set on the exit of construction site in order to clear adhesive clay on the surface; someone is responsible for clearing the wheels and the sanitation of site access, it is prohibited to drive on the road if the wheel has the clay; paulin should be covered for the vehicles, which transport the dusty materials, such as lime, sand and gravel, cement as well as pulverized fuel ash (PFA), it is suitable not to be overloaded for assuring that the materials cannot be shattered during transportation; driving routes and time should be planed well for the purpose of avoiding to drive on sensitive area such as downtown, transportation central place and residential buildings, if the clay are shatters on the road in the process of transportation, cleaning work should be done immediately in order to reduce the dust caused by transportation; as for the section with high requirements on environment, night transportation can be chosen as the case may be for cutting down the effect of the dust against the environment.
② Sprinkling and cleaning measures can be taken to prevent and control the dust produced from construction filed and roads. Special warehouse should be provided to pile up building materials as cement, and the shattered cement on the floor must be cleaned in time, the bag should be guaranteed against breakage during transportation and loading; the piling site for lime and sandy soil is not be in the open air as possible, if those cannot be piled up in the open air, piling up area must be away from waters, and Sprinkling and Cleaning System should be laid down in order to improve surface moisture content, in addition, someone is in charge of sprinkling and cleaning the sites not less than 2 times at daily starting and closing time, the effect of which is to control the dust; when the construction is made on the road closing to environmental sensitive areas, the frequency and amount should be increased; it is required that one sprinkler can be prepared for the construction site of each sub-project.
According to relevant investigation, it is shown that main dust of the construction filed is produced by those running transportation vehicles, approximately accounting for 60% of total dust and relating to driving road and speed. Generally, under the effect of natural wind, the scope impacted by the dust produced by construction sites and roads is within 100m. If 4～5 times of daily sprinkling and cleaning works for dust-control are made, polluting distance caused by the dust can be reduced to 20-50m; sprinkling and cleaning can reduce 70～80％of the dust, however, if the sprinkling is made after cleaning work has been done, under such case, dust-control efficiency can reach more than 90％, please see the following table.
Table 128: Test Results for Sprinkling & Dust-Control on Construction Site
|Distance (m) |5 |20 |30 |50 |100-150 |
|TSP（mg/m3）Average |Without |10.14 |2.89 |1.15 |0.86 |0.61 |
|discharge Concentration by Hour |Sprinkling | | | | | |
| |Sprinkling |2.01 |1.40 |0.67 |0.27 |0.21 |
③Hardening treatment must be made on construction site floor, conditionally, concrete terrace can be adopted.
④The selected construction unit should have certain power and capability, merchantable plant- mixing cement and closed transport vehicle are adopted, especially for the urban areas where environmental sensitive point are concentrative comparatively, at the same time, Cement Mixing Station should be built at construction sits, and merchantable cement should be used. As for temporary and odd Cement Mixing Fields, it should make the best of being away from residential buildings when selecting factory sites.
⑤ Shall strengthen the management on landfill earthmoving site and to regulate the measures such as earthmoving surface compaction, regular spraying and coverage; wasted soil and construction waste are not suitable to be piled up for a long time, so it should be collected and transported to low-lying lands for filling disposal appointed by municipal management authority or delivered to garbage landfill field to make appropriate disposal.
⑥After finishing the usage for temporary land, vegetation on such land should be restored immediately for the conservation of soil against erosion.
⑦The major Construction of Urban Sewage Pipe Network and enclosure pipeline for water source are made at the urban areas with comparative dense population, if there are many residential points near by and other environmental sensitive targets, and there are environmental sensitive targets within 200m on construction site, under such condition, the shield should be set up around there. There are environmental sensitive points within 50m on the way of Wuhe County’s large furrow, so when construction is operated on this section, clean and available shield should be set around there.
⑧ The bottom mud which is cleaned out from flood control ditch and reservoir of Huairou County, should be possible to be used for firming side ditch and restoring vegetation. The cleaned out life sewage should be sent to Garbage Landfill Field for reducing the time of site storage. In the process of cleaning the garbage, masking work should be done in order to prevent leakage and falling on the way.
⑨ When dredging sludge is stacked along the ditches in the process of drying, it should be tamped in time and the vegetation should be planted to restore Ecology and prevent dried sludge from producing secondary dusty pollution.
（3）Vehicle Exhaust
①The reduction of pollution load is the fundamental way to handle the problem of air pollution, transport vehicle and construction machinery with fuel burning shall make use of qualified lead-free gasoline, inferior oil is prohibited. Daily maintenance and regular inspection to fuel burning machinery should be strengthen, engine should operate under normal and good state; at the same time, tail gas emission purifier should be installed to make tail gas reach discharge standard.
② Transport management should be reinforced, and spot check is made on tail gas emission certificate, the vehicle with tail gas over standard is forbidden to drive on the road.
③ Greenbelt management at both side of the streets should be strengthen. The plants as arbor and frutex available for absorbing the pollutants in tail gas and lawn are planted at both sides in order to prevent exhaust gas from spreading surrounding environments. Normally, adsorptive capacity of evergreen broad-leaved forest is stronger than deciduous forest and coniferous forest.
（4）Others: During construction period, the wasted building materials are not allowed to be reused as fuel. Works canteen should use Liquefied Petroleum Gas or Electric Cooking Utensils, and Oil Cooking Utensils are prohibited.
2. Prevention & Control Measures for Noise Pollution
From the analysis for the noise impact in construction period, we can see that the production of the noise is inevitable, the noise will be accompanying with the construction sites, and the noise from construction site will have great impact on surrounding environment. The places of subproject all have the distribution of sensitive point. According to Clause 22 of Noise Limits for Construction Site（GB12523-90）,the subprojects must carry out the said standard on surrounding boundary in the process of construction in order to reduce and get rid of noise impact to near sensitive point. From predicated results we know that the noise produced in the period of construction is over the standard regulated in Noise Limits for Construction Site. Try to prevent pollution, project construction and construction unit shall adopt relevant Prevention & Control Measures for Noise and reduce noise impact to environment to a great extent. In the process of actual construction, Regulations of the People’s Republic of China on Prevention and Control of Pollution and local regulations for Prevention and Control of Pollution from Environmental Noise shall be implemented strictly.
（1）Reasonable Arrangement for Construction Time
①Scientific construction plan shall be formulated in order to avoid the usage of high-noise equipments at the same time as possible; in addition, construction time for high-noise equipments shall be arranged at daytime to reduce night construction. Within 100m away from the section of construction site, where has environmental sensitive points, it is prohibited to operate with high noise and high vibration equipments at noon or at night.
②When construction is made near school and hospital, scientific construction plan shall be formulated, and construction unit shall consult with them for using time of high noise equipments, as for the school, it try to arrange the operation at weekend or out of class in order to avoid the impact on normal class.
（2）Reasonable Layout for Construction Site
①Reasonable arrangement shall be made for construction site, and high noise equipments shall be away from noise sensitive points as for specific construction site, which are impacted seriously, shall adopt temporary sound proof enclosing structure, or it is considered to build temporary workers barrack near sensitive points to replace the function of sound insulation wall, earth working project shall try to arrange several sets of equipments to operate at one time to reduce impact period. Fixed vibrated source of construction site is comparatively concentrated to reduce the scope of vibration interruption.
②The transport vehicle for construction is arranged to the side away from residential area when accessing the yard.
③The reduction for traffic noise on construction: Due to great impact of transportation on environment during construction, so it is necessary to reduce transportation volume at night and limit speed of large truck, and the accession of residential area shall have speed limit .In addition, transport vehicle shall make regular repair and maintenance and cut down or stop whistle, and transportation routes shall be arranged reasonably.
（3）Reduction of Equipment Noise Level
①On the selection of types, low noise equipments or the equipments with sound insulation and noise elimination equipments, such as hydraulic machinery instead of fuel burning machinery, and high frequency adopted for vibrator, above described equipments shall be used. Compare to other vehicles at same level, the noise level of low noise transport vehicle is lower 10～15dB（A）on running processes, as for excavator and stirrer in different types, there is difference of 5dB（A）for noise level.
②Fixed mechanical equipments and excavating as well as earthmoving, such as excavator, bulldozer, ect, can reduce their noise through noise silencer of exhaust ducting and the separation of engine’s vibrating parts.
③The noise level of mechanical equipment will be increased on operation for the vibration of loosing parts or the damage of silencer, therefore, inspection, repair and maintenance shall be made for mechanical equipments, and the equipments should keep lubricating and each part shall be fixed to reduce vibrated noise on operation. Integral equipments shall be put firmly to keep good contact with the floor. Conditionally, vibration-absorbing base should be adopted to reduce the noise.
④Laid up facilities should be closed immediately, and transport vehicle shall slow down and cut down whistle.
⑤As for prefabricated components, such as bridge and storage gate, are tried to make at suitable site and transport to construction site for field assembly.
（4）Reduction of Man Made Noise
①Machineries are operated as per regulations, and operating regulations should be abided by in the process of disassembling guard and bracket to reduce noise from collision.
②Whistle and bell are used less as possible in conducting operation, but state of the art equipments are adopted.
（5）Establishment of Temporary Sound Barrier
①As for machineries with relevant fixed place, machineries should try to access into in if those can be done in shed; if not, sound barrier of single side is established within 30m away from sensitive point.
②In addition to above mentioned noise reduction measures, construction unit should set up good community relation with surrounding units and residents, as for the units and residents disturbed by construction unit, notice should be given to that unit prior to operation, the construction unit shall report their construction schedule and adopted measures to reduce noise in order to obtain mutual understanding. In accordance with the regulations in “Law of the People's Republic of China on Prevention and Control of Pollution from Environmental Noise”, if the noise still cannot meet regulated limits after adopting noise reduction measures, construction unit should make apology and appropriate compensation to the organizations or individual impacted by the noise.
③ Adoption of Individual Protection Measures: Personal noise protection apparatus is the main protection measures adopted by individual. As for constructers, who are working near high noise equipments, can adopt assemblage and use noise protection apparatus such as earplug, earphone and noise protection helmet, ect.
④ In addition, Complaint call should be set up during construction period to accept and positively handle customers’ complaint on noise Disturbance.
3. Prevention & control measures for solid wastes
（1）Prevention & Control Measures for Dredged Spoil and Desilting as well as Dredging Sludge
①Dredging soil and construction wastes are reclaimed at appointed place required by municipal and planning authority; construction unit must go through formalities on the discharge of dredged spoil and sludge according to regulations and sanitary landfill is made on appointed accepted place upon approval, meanwhile, the disposal facilities for leachate should be well-managed and reach the standard of discharge.
②If the acceptable capacity for filling place is limit, it is suggested that construction unit comprehensively use part of bottom mud, such as on paving the roads, making tiles and so on, in this way, Bricks and Tiles Plant can avoid and reduce the damage against farmland caused by borrowing the soil, and the realization of diversified investment promotes comprehensive improvement of river cause. Bottom mud should be monitored prior to comprehensive utilization, if it is found that the heavy metal in the bottom mud is over standard, such mud shall be delivered to garbage landfills to make sanitary disposal and not allowed to make comprehensive utilization.
③It is try to make internal earthwork balance of the project; dredged sludge can be piled up at both sides along large furrow, dredged spoil are used at filling area of the levee of Huaibei and for earthwork balance of piling up area; if the surface is polluted seriously, it is considered to deliver them to landfill space, but dewatering should be done at banks, hermetically sealed tank car is adopted for transportation. For example, part of sludge produced by construction in Huairou County can be used to reinforce the slope of flood control ditch and the embankment of dew pond at original place and dredged spoil can be used for other works in this way, the comprehensive utilization for the resources is realized. As for dredging sludge caused from Wuhe County can be piled up at both sides along large furrow, and dredged soil is used for the landfill of the works in Industrial Parks. The bottom mud dug out from Tianhe fishing ground in rive area should try to be used as soil for surrounding gardens and low lying place landfill.
④ Before clearance and dredging sludge are used comprehensively, according to actual requirements, bottom mud are monitored at selective points, if it is found that there is the heavy metal in the soil or the heavy metal in the bottom mud is over standard, such soil shall not be used for cropper, which is directly edible for human being.
（2）Prevention & Control Measures for Construction Wastes
① The wasted sands and stone, building materials, steels and packing materials are managed and recollected by a person in charge to save the resources, after completion of construction, construction sited should be cleared in time, it is prohibited to pile up building wasted materials to affect city appearance and environmental sanitary.
② Building garbage as the tiles can be disposed by general storage method, however, the garbage must be finally sent to appointed disposal site.
③ Fully enclosed construction is adopted to control the pollution and effect within the scope of construction site during construction period and reduce the impact against surrounding environments as possible. And Barricading Piling Method is adopted to dispose dusty wastes
④ When delivering bulk and wasted materials, the transport vehicles must load appropriately, paulin or enclosed vehicle is adopted; outer clearance should be made well before starting to work at construction site, and shattering along the road should be prevented to avoid the effect on the landscape and sanitary; the materials transportation made by construction vehicles should try to be kept away from sensitive points of rush-hour traffic and driver on appointed section, meanwhile, relevant appropriate prevention & Control measures are adopted to cut down traffic pressure of the materials transportation and the leakage of the materials, it is possible to cause secondary dusty pollution.
⑤ It is prohibited to pile up engineering materials as sands and stone at peripheral lakes and rivers, meanwhile, engineering wastes and life sewage as well as piling site for wastes and storage point for garbage all should be away from water surface setup of lake and river. The mud shattered on construction site and detour should be cleared in time in order to prevent soil hardening from solidification and avoid the impact on the factory and road flat; Clearance and transport should be made for all kinds of garbage at construction site.
（3）Prevention & Control Measures for Life Sewage at Construction Site and Other Solid Wastes
① Temporary garbage dumping point is set up at construction sits, life sewage produced by the constructors and the garbage caused by the clearance from flood prevention ditch should be concentratively collected and piled up and transported outside in time, these garbage are not allowed to dump at periphery randomly.
② As for movable toilet that is set up at building camp should be regularly sanitized, and Environmental Sanitation Authority is responsible for regularly clearance and wash.
③ Barriers in riverway and riverbeach in construction section should be cleared out before clearance and the works of flood prevention pumping station begin to operate, life sewage piled along the ditch should be transported to garbage disposal plant, and discharge outlet for life and industrial polluted water are cleared in case of being blocked; It must be assured that there are no residue left in riverway when the cofferdam are removed after finishing the construction, and all need to be clear and tidy made by the requirements.
④ Construction machinery and the vehicle must be managed strictly, it is prohibited to leak oil bearing materials and dump these wastes at random so as to avoid soil and water environment pollution. Used oil and its containers belong to hazardous wastes of “waste mineral oil”, if the waste oil is not allowed to dump at random, under such case, it should be stored in special containers and then the qualified units are entrusted to make harmless disposal for those wastes.
4. Prevention & control measures for soil erosion
Before the execution of project construction, all kinds of pre-arranged planning on preventing soil erosion should be made well in order to protect and reasonably use water and land resources to a great extent. In the period of construction, the excavation for land surface is great, which produces a lot of wasted soil and seriously destroy vegetation, so if there is no appropriated measures, the soil loss will present the trend of multiply increase at the place where the project plans to be established,, therefore, strict environmental protection measures are adopted to effectively prevent the occurrence of soil erosion; on temporary occupying areas, the occupying time should be reduced as possible and the occupied land should be cleared in time to restore original function of the land; .in the period of all project and within the scope if the construction, the effective management and protection measures should be taken to cut down the impact caused by oil erosion by the greatest degree.
（1）Excavation during construction in period should try to avoid raining season, and daily excavation should be cleared on the day as possible, if not, daily excavated soil should be standardizedly piled up; temporary dumping sites should chose comparative flat places, and necessary facilities, such as flood prevention ditch, flood prevention pipe network or retaining wall, should be set on all sides in order to buffer and reduce the losses of wasted soil, and after finishing using the land, vegetation on such land should be restored immediately for the conservation of soil against erosion.
（2）On the river side, the afforestation function to prevent soil erosion should be fully considered, especially embankment project, during construction, two sides of the dike should be covered by dustproof net, when necessary, side ditch and stagnant pool on riverway are built; reasonable stacking of the earthwork at construction site should be given more attention and keep certain distance with riverway and ditch, in addition, straw bag are piled up all around to prevent the sand from inflowing into the waters and cut down the impact of soil erosion on rivers and drainage ditches; the afforestation should be made immediately after finishing embankment .
（3）There is height difference between some roads and surrounding terrain, so retaining wall is established at both sides of the roads to prevent soil erosion caused by rain wash.
（4）Original landform should be maintained as possible during construction, so the reduction of fill and excavation, earthwork volume and construction cost should be made for the purpose of trying to use initial vegetation to conserve water and soil. The program should be made well for the vegetation, which must be damaged; it is forbidden to destroy the plants at random in construction sites, after finishing the construction .At the same time, drainage measures in the period of construction are made well so as to avoid soil erosion caused by heavy rain.
（5）The work for earthwork balance under construction are made better, and the excavated earthwork should try to be used as backfilling soil for construction site; after backfilling, the rest wasted soil produced by laying the pipeline are delivered to other construction sites (e.g. embankment, flood prevention road works, ect.) as construction fill and the land for afforestation in order to avoid unreasonable landfill.
（6）the construction should not be completely expanded out to reduce the period of single project, but to be carried out in different sections and period, especially for the works of laying pipe network. Protection measures are adopted for the exposed area left by excavation, therefore, the exposure period should be cut down to reduce soil erosion.
（7）The slope of the works tries to adopt grouted square turf to obtain protection or turf as protection.
（8）Due to the reservoir and desilting from flood prevention ditch relating to the construction in Huairou County, the cleaned out sludge can be used for the slope of flood control ditch and reservoir according to argillaceous features, or delivered to garbage landfill field to fill. The reduction for the time of site storage is to prevent soil erosion caused by rain wash.
5. Prevention & control measures for water pollution
（1）When the buildings are under construction, the construction unit should set up sedimentation tank to discharge rain sewage and water pools at construction site produced in the period of construction after all reach the standard through disposal. Piling mud should be sent to designated place by the treatment of sedimentation and drying according to the requirements of urban area management department, and it is prohibited to discharge the piling mud into around farmland or ditches, reservoirs and rivers in case of blockage of drainage channel; at the same time, it is prohibited to discharge the piling mud into municipal pipeline network to block the pipeline.
（2）Storage area for construction materials should be away from surface water and set up runoff place where is not easily to be washed; in addition, storage area for powdered materials should be matched with the coverings such as straw bag and paulin and open ditch should be dug around storage area in order to prevent runoff washing .
（3）Planting the lawn or installing fixed filter screen for clay can prevent soil erosion caused by the runoff of rainfall.
（4）The discharge of life sewage from construction site must be uncompromisingly controlled. As for construction process presenting linear distribution just like pipeline, the builders disperse comparatively, so they should try to make use of existing life facilities near construction sites. If there are no sanitary facilities, oil separator tank and septic tank should be set up at construction site for the case of temporary restaurant set up at building site. After life sewage of the builders is pretreated, it is delivered to municipal departments to regularly make spot transportation, and then these life sewage are sent to sewage treatment plant by tank car available for sewage transportation, it is prohibited to discharge at construction site.
（5）Construction unit should adopt all necessary measures to prevent sewage without disposal from flowing into rivers and ditches.
（6）The management on construction sites should be strengthened, the sites and landfill slope of earthwork keep plat and tidy to reduce the earthwork to enter into riverway near landfill site; the wastes at construction sites must be cleaned and transported outside in time.
（7） Building materials, such as oil and chemical products, is not suitable to be filled near the rivers and waters and should keep away from rivers with temporary covered paulin to prevent them into water from washing out by gale and rainfall. Environmental management should be reinforced to avoid oil materials leakage caused by construction machineries or the dumping of oil materials into waters to produce pollution, and it is suggested that the method of vessel-receiving is adopted for oil leakage of the machineries.
（8）Dredging Works: construction should be done during dry season in order to avoid the impact caused by riverway flooding; the sludge produced by riverway Dredging should be stored at least 10m away from the shore according to the requirements of works design so as to avoid the sludge flowing into the riverway through runoff; sedimentation tank is put at low lying place of construction sits, and underground infiltration pumped by sinking pump, wasted water from construction operation and life sewage of the constructors are discharged into the waters after being disposed in sedimentation tank. There is foundation trench around sludge landfill field, which connects with sedimentation tank, the remaining water caused by sludge landfill are discharged into the river at downstream for avoiding flowing into riverway or the impact on water quality and environmental sanitary at construction sits led by wanton discharge .
（9）Flood Prevention Control for Tianhe: Construction should be done during dry season, and the construction period should be reduced in order to avoid the impact caused by riverway flooding. At construction sits of Tianhe Pumping Station, sedimentation tank is put at low lying place, and operating waste water of the construction, such as water building pit infiltration pumped by sinking pump, waste mud water, waste water contained oil, should be given priority to be reused at construction site after being disposed through sedimentation tank and grease trap, these disposed water are adopted as operating water and sprinkling to control dust in order to reduce discharge volume of waste water. The construction waste water and life sewage must reach Grade I Standard before being discharged into the Huaihe River. Side ditch for drainage must be set there when perimeter irrigation station and fishing ground of the Tianhe River are reconstructed, and sedimentation tank is put at low lying place away from the Tianhe River, after being disposed through oil separator sedimentation tank, waste water caused by construction should meet water operation requirements specified in “Standard for Irrigation Water Quality” and is discharged into the ditches of perimeter farmland, and it is prohibited to discharge those waste water into the Tianhe River directly. Dredging and excavating works for the bed need to done when reconstructing pumping station and fishing ground, the cleaned out sludge should be stored away from the shores in case of sludge and rainfall in storage filed flowing into the rivers; drainage ditches are set around the area for piling the mud, and project engineering wastewater is disposed at sedimentation tank that is set up at low lying place and flows into peripheral ditches in order to avoid engineering wastewater flow into the Tianhe River or the Huaihe River or directly into farmland soil.
（10）Water Environment Protection Measures for the Longzi Lake
①In order to guarantee that dredging project engineering wastewater of the Longzi Lake reaches the standard, environmental monitoring plan regulated as per this report must be followed strictly, engineering wastewater quality are monitored at discharge outlet of sedimentation tank. Once it is found that water quality is over standard, engineering measures should be adopted to adjust the amount of medicine and increase staying time of engineering wastewater in order to ensure effluent water quality.
②In order to avoid occurrence of leakage accidents on mud Conveyance Pipe in the process of transporting bottom mud to storage filed after dredging and excavating, several aspects should be controlled strictly, such as the selection of pipe materials, pipe installation g and so on. In the process of pipeline operation, daily maintenance and visitatorial inspection should be strengthen in order to find and handle possible leakage accidents and avoid the impact of pipeline breakage or mud leakage on water quality of Longzi Lake.
③In order to guarantee that there is no appreciable adverse effect on water quality of the Longzi Lake caused by landfill wastewater, during its initial engineering period, settling time should be assured not less than 48 hours, and in the latter period, Medicine Adding Settlement Promoting Method is adopted to guarantee that engineering wastewater reach the standard for discharge.
④During the period of hydraulic fill at storage field, special person is responsible for visitatorial inspection to low reclamation dam in order to find and handle possible leakage accidents caused by collapse and avoid the sludge flowing out into the waters or farmland leading to secondary pollution.
⑤ Distinct warning sign should be put around storage field for avoiding man made breakage on low reclamation dam or occurrence of the dangers caused by the strangers entering into the storage field by mistake.
⑥There is a small life sewage integrated treatment facility at construction site of the Longzi Lake Flood Prevention Pumping Station, life sewage of the constructors reaches Grade I Standard of Integrated Wastewater Discharge Standard after being disposed and then are discharged into the Longzi Lake. As for construction site of dredging engineering, life sewage produced by the constructors is little, and it is allowed not to build sedimentation tank, life sewage is discharged into storage sedimentation tank, and it mixes with dreading wastewater and then they are discharged together after being disposed.
⑦There is a sedimentation tank at construction site of the Longzi Lake Flood Prevention Pumping Station, after underground water at construction site is pumped into sedimentation tank, and then that water will be discharged into the Huaihe River through sedimentation, in addition, operation wastewater under construction is also discharged into the Huaihe River through sedimentation.
⑧After finishing dredging engineering for Lake Bottom and dismantling construction cofferdam of the Longzi Lake Flood Prevention Pumping Station, construction site for lake bottom should be cleaned immediately, building garbage are controlled strictly to leave at lake bottom, because those left garbage will impact water quality of the Longzi Lake and sedimental environment.
6. Measures for Reliving Social Environmental Impact
（1）All kinds of preparation should be made prior to construction; the contents relating to the works are investigated and understood in detail, and the preparation for emergency works should be done well cooperating with relevant authorities in advance to ensure normal state of social life.
（2）In order to cut down the impact on urban residents life and transportation caused by engineering construction into minimum degree, during construction period, the driving routes for the vehicle should be determined according to uniform traffic diversion plan in order to prevent traffic jam; a notice to reassure the public is made by making use of broadcast, TV, newspaper and magazine.
（3）A notice is put at construction site, it includes main contents of engineering, construction time, public acceptance for inconvenience brought by construction and states connect person as well as complaint hotlines, ect.
（4）Transportation for building materials and waste earthwork should avoid the rush hours or driving at night to reduce traffic jam and the impact on resident trip.
（5）Pipeline and river dredging engineering should adopt section construction, meanwhile, excavation and backfilling should be finished as soon as possible. Temporary pavement should be set, especially when the construction is carried out near public installations such as hospital, school and station, in addition, traffic warning signs are matched, and traffic polices disperse and dispatch the vehicle on the rush hours in order to ensure the smooth of pedestrian and vehicle; transportation for the materials should try to avoid rush hours so as to relief urban traffic flow pressure; when the pipelines cross through arterial road, priority will be given to pipe jacking construction for reducing the impact on transportation to a great extent.
（6）In order to guarantee traffic smooth for the residents, clearance and transportation for industrial garage clean out of pipe network and road construction should be done immediately.
（7）Low noise equipments are used for the project which must operated at night, and hanging height and direction of the construction lamps shouldn’t impact the residents’ rest at night.
（8）Emergency preparation should be done in advance by relevant authorities for the occurrence of the problems impacting residential water supply and discharge during construction period,
（9）According to relevant national and local resettlement policies and compensation for removal due to land expropriation, reasonable compensation and resettlement work should be made for the villagers whose lands are expropriated and houses are removed. At the same time, immigration comments should be appreciated to ensure their working and life conditions not less than current level and dwelling space is improved, in addition, residential area has complete matched public installations as school, hospital, nurseries and kindergartens, shop and transportation.
（10）Administrative staff and the constructors should be further cultivated on the education and awareness for cultural relic protection. During the period of construction, once the existence of cultural relics and historic sites had been discovered, administrative staff and the constructors shall notify Cultural Relic Protection Authority in time, and then construction will go on only after those cultural relic are properly disposed.
（11）After the Tianhe River’s fishing ground is demolished, its development and construction should be done according to protection program for the Tianhe River water source, at the same time, construction plan shall obtain the comment of relevant authorities on land, planning, water resources and environment protection. Development areas and land development intensity should be controlled.
（12）The breadth of the roads to be built is controlled to save land occupancy, and the reduction of vehicle flowrate and traffic pressure are favorable for cutting down loss degree on road bed and surface and reducing pollution from vehicle exhaust.
（13）Adverse impact on traffic will be reduced by speeding up schedule and cutting construction period.
7. Measures for Ecological Environment Protection
Instantaneous changes will be brought to existing ecological landscape during the period of construction, therefore construction should be done in section and area in order to appropriately protect ecological landscape environment along the line. The following points should be paid more attention during construction:
（1）Operating area for construction must be controlled strictly, and propaganda and education work on environment protection awareness should be enhanced for the constructors. During construction period, those deeply-excavated and high-filled road sections will destroy terrain, physiognomy, vegetation and occupy the land, and it also leads to surface exposure and alters soil structure to change ecologic structure and the function of the areas along the line, finally, the stability of ecologic system will be affected. Therefore, propaganda and education work on environment protection awareness should be enhanced for the constructors, and the constructors are forbidden to destroy the plant out of designed land.
（2）The construction process for roads and pipe net work should be done according to construction stage and area, and protection measures are adopted for the exposed area left by excavation, therefore, the exposure period should be cut down to protect surface layer and the plants. As for the flowers and trees planted, in the middle and both sides of construction section, transplantation and protection work need to be done well, and is it not necessary to replant all damaged plants, but temporary transplantation. Temporary storage and protection should be made after separating the soil layer with fertility on the land surface, reclamation green measures should be adopted after completing the construction. Engineering supervisory personnel are required to strengthen the supervision on such work, therefore, such operation is one of important factors for biological diversity within the land for construction use and improving survival rate of the plants and grass within the scope of project afforestation.
（3）The afforestation function to prevent soil erosion should be fully considered, under possible circumstance, afforestation should be made matching with factory green plan when one section is finished so as to reach the purpose of reducing soil erosion; turf side slope protection is a kind of engineering measures to create artificial phytocoenosis for temporary use to make the slope covered the plants quickly, the selected turf is the plant with the features of strong purifying ability, adversity resistance, easy control, high value for comprehensive use and landscape beautification available, at the same time, survival rate for the plants and good purifying effect should be guaranteed.
（4）The areas that need to be removed should be constructed with order in section so as to avoid landscape confusion along the line to disturb landscape appreciation, at the same time, the shield (wood, glass, and sheet iron, ect.) can be set up as surrounding barrier to reduce landscape pollution. During the process of construction, more attention should be given to the plants such as trees and green space in adjacent area.
（5）After reasonable distribution for cuts and fills is made well, piling point for wasted soil should take protective measures to avoid cutting and filling in raining period and prevent soil erosion, water pollution and blockage of drainage pipe caused by rain wash. Meanwhile, balancing of cuts and fill should try to be made better, and the excavated earthwork is used as backfilling soil for leveling off construction site; the rest wasted soil produced by construction after backfilling should be sent to filling and earth-moving area of north side of the Huaibei Embankment to make earthwork balance.
（6）On the premise of meeting the requirements of engineering construction, flat place should be selected as temporary piling site and floor area should be save as possible, at the same time, construction schedule should be arranged reasonably. After the completion of the works, construction unit must clear construction sits in time and withdraw occupying sites, in addition, those destroyed plants should be replanted as possible to recover original ecology.
（7）As for temporary occupied land in engineering construction, reclamation measures should be positively adopted after finishing the construction in order to recover agricultural production as soon as possible.
（8）After the construction in piling site, which occupies flood land, is finished, grass seed should be sowed in time for afforestation in order to prevent dust caused by sludge drying and soil erosion in raining season.
（9）Dredging depth should be controlled strictly for avoiding serious impact against benthic biota and root system of submerged plant in bottom sludge.
（10）When bottom land training is done during reconstructing the Tianhe River fishing ground, dredging and excavating areas and acreage should be controlled strictly in order to cut down the impact and interference on ecological environment of the Tianhe River fishing ground.
（11）Ecological supervising works are assumed jointly by Project Supervisory Authority and environmental protection personnel of Construction Authority, and visitatorial inspection is adopted to check the implementing conditions of ecological protection measures.
8. Prevention & Control Measures for Other Pollutions under Construction
（1）During construction process, construction unit should try to make concurrent construction for those areas, where the roads and pipe networks all need to be done, in this way, roads destruction caused by the construction of pipe network can be avoided, which not only can lead to repeated construction, but produce pollution of noise, atmosphere and water against surrounding environments and bring ecological impact such as soil erosion and vegetation destruction.
（2）After entering into working area, the constructors regularly choose the pesticide to kill the pests such as mosquito and fly and adopt rattrap or poison bait to kill the rats in living area.
（3）Construction Management Authority should strengthen monitoring epidemic disease, make regular medical observation for the constructors and strictly follow the system of reporting epidemic diseases. Especially, the kitchen in construction site should have a complete medical examination and accept training on sanitary and anti-epidemic knowledge. In addition, prevention and treatment knowledge for frequency encountered diseases and usual illness (such as epidemic hemorrhagic fever, hepatitis and food poisoning) should be widely propagated in order to enhance group’s awareness on preventing and resisting the diseases.
（4）Shall protect water source and get rid of pollution, and regular examination is made on drinking water quality and migrant workers’ food in order to cut down any possible way to pollute drinking water.
2. Prevention & control measures for pollution under operation period
1. Prevention & control measures for atmospheric pollution
1. Prevention & Control Measures for Road Vehicles Exhaust Gas
（1）Clean fuel (LPG)is widely popularized to reduce discharge volume of CO, THC and NO2 in vehicle exhaust. And the installation of exhaust purifier can reduce 70％ of CO and 50% of NO2 in vehicle exhaust.
（2）Afforestation of both side should be strengthened, the trees and grass available for absorbing pollutants in vehicle exhaust, such as arbor and frutex, are selected to be planted and their function in dust suction, noise reduction and environment beatification are given full play so as to control the spread of vehicle exhaust to surrounding environment, at the same time, the maintenance of afforestation is made well.
（3）Shall strengthen monitoring on vehicle exhaust, and the automobile on the road is monitored in strict accordance with standard, those which can’t meet standard are not allowed to drive on the road in order to control discharge source
（4）Shall strengthen management on the automobile to reduce vehicle idling mode and cut down the discharge of pollutants in exhaust.
（5）Shall strengthen daily repair and maintenance to keep good state and reduce discharge volume of pollutants in exhaust.
（6）The vehicle, the exhaust of which is over standard, should be eliminated in time.
（7）Further improvement should be made on passing conditions on crossing roads, and traffic signal cycle of city sections should be set up reasonably to improve passing rate of the vehicle, reduce the phenomena of traffic jam and abate pollutants in exhaust.
（8）The vehicles, which deliver the materials containing the dust, should use paulin to cover the goods, and the shatter of materials should be strictly controlled.
2. Reliving Measures for Odor Impact of Sewage Treatment Plant
（1）Sanitary prevention and protection distance are set up in strict accordance with regulations, at the same time, shall guarantee that factory and surrounding living areas don’t suffered the impact of odor gas.
（2）Factory afforestation should be improved and green isolation belt is set up.
（3）Strict management should be made on storage, transportation and disposal process for the sludge.
（4）Accidents Emergency Response System is established to prevent risk accidents.
2. Prevention & control measures for acoustic environment pollution
1. Prevention & control measures for flood prevention pumping station
（1）High-quality low noise pumping station and air compressor are preferred in Flood Prevention Station; inlet & outlet pipeline’s size for the pump should be suitable and matching; acoustic enclosure should be set up out of air compressor, and sound insulation is realized by its internal acoustic material; flexible and elastic connection are made for inlet & outlet connecting pipeline of the pump, and pipeline support of the pump can be used as elastic bearing and pump assembly is treated as vibration insulation, such as metallic spring and robber absorber, to make shock absorbing treatment.
（2）Two storied gate and window are required to be set up in equipment room of Flood Prevention Station, and there is a greenbelt with mixed trees of arbor and frutex around pumping station in order to play a role in sound insulation and noise reduction against operating noise caused by Flood Prevention Station.
2. Prevention & control measures for road traffic noise
（1）The frequency for tracking monitoring on sensitive points near the section is one time after middle term of operating period, if the monitoring results show that the noise is over standard due to the increase of traffic volume, relocation measures should be adopted in time. It is suggested that resettlement for relocated residents be responsible for construction unit.
（2）According to scientific data, sound planning and scientific layout, Planning Authority, Environmental Protection Administration and Transport Authority cooperate wholeheartedly to do a good job on urban planning and avoid occurrence of new noise sensitive point. In order to reduce possible impact led by traffic noise, it is suggested that the authority in charge should notify relevant streets, governments and Village Committee at different levels along the line in an official documents not to plan and construct school, hospital and residential area near both sides of the roads. If it must be construction within the coverage of influence, under such cases, building owners are responsible for taking measures to prevent traffic noise at their peril.
（3）Construction quality should be controlled strictly in order to guarantee that there are no problems as sinking, crack and roughness occurred on pavement during operating period to increase driving noises.
（4）Under permitted conditions, it is suggested that pavement should adopt low noise pavement, which is made of Porosity Porous Asphalt Mixture Surface, and the noise can be made reduction of 3-6 dB(A) by comparing with traditional dense aggregate pavement.
（5）Shall strengthen the management on the vehicles. In the front of the hospital and kindergarten, the vehicles need to slow down and are forbidden to make tooting.
（6）The trees and evergreen ornamental arbor try to planted at both sides of reconstructed and newly built road, and the grass is planted the slope of the bridge, which not only can play a role of reducing the noise, but to improve urban environment and beautify road landscape.
3. Prevention & control measures for noise pollution from sewage treatment plant
Main noise sources of sewage treatment works are the equipment noises produced by Sewage Treatment Plant and Sewage Lifting Pump Station, including mechanical equipments such as sewage pump, blower, and the measures for preventing and controlling noises are adopted as follows:
（1）Low noise blowers, sewage pumps and the others are selected.
（2）Impedance complex muffler is set up at air inlet and outlet of the blowers.
（3）Sound insulation room is adopted for the treatment for noise reduction,
（4）As for aeration tank, the measures, such as vibration-absorption, sound insulation and underground tunnel blast, are adopted for blower house.
（5）Center control monitoring room is set up in blower house control, and it is not necessary for the operators to work in blower house.
4. Water treatment plant
Main noises of Water Treatment Plant under operation period are: blower and water pump. The noises caused by the operation of these equipments is between 80~90 decibels, and it is able to meet the requirements of Standard of Noise at Boundary of Industrial Enterprises GB12348-90 (Class III) through sound insulation and reduction. Relevant noise control and Prevention & Control Measures should be adopted in order to cut down noise impact under operation period.
（1）Low noise equipments should be chosen as possible, as for the equipments with higher noise (（≥75dB(A)）, the measures as protective mask and insulation wall are adopted to reduce noise. All equipments adopt flexible connection and vibration insulation treatment should be made well as possible to reduce the noise caused by indoor equipment operation.
（2）The workers, who are working at noise environment for a long time, should be equipped with ear protector, and regular examination on their listening is made.
（3）Shall strengthen equipments maintenance and management to ensure them normal operation and avoid noise pollution caused by abnormal operation.
（4）Shall strengthen afforestation at open space, especially for blower house and around pump house. Open space around buildings is fully made use of, where flowers are planted, and parterre as well as greenbelt are built, in this way, a green system consists of parterre, greenbelt and avenue tree.
3. Prevention & control measures for solid wastes pollution
1. Prevention & control measures for solid wastes pollution at flood prevention pumping station
（1）Life sewage of the management at Flood Prevention Pumping Station should be collectively stored and delivered to Environmental Sanitation Authority to transport outside for disposal.
（2）Gate residue produced by inlet gate of Flood Prevention Pumping Station should be collected at designated points, after being drained, these gate residues are delivered to Environmental Sanitation Authority to transport outside for disposal, and it is not allowed to be stored near or around Flood Prevention Pumping Station.
2. Control measures for the sludge of sewage treatment plant
（1）Sludge bulking
Sludge bulking is one of more difficult problems to be solved met by Sewage Treatment Plant, and it mainly occurs at secondary sedimentation tank. Sludge bulking refers to destruct the macrostructure of sludge floc caused by overgrowth of filiform microorganism, and filamentous substances disturb the compress and Sedimentation to lead to sludge bulking on volume. In the process of sewage treatment, if the influent concentration of the sewage is very high or aeration time is short, the activated sludge process is possible to overload. The features of the sludge deterioration are having putrid flavor, presenting ascending trends of activated sludge in secondary sedimentation tank and forming foam or appearing filamentous microorganism. For miscible liquid is not easy to separated, so it will impact sewage treatment.
The main measures for solving sludge bulking are as follows:
①Reduce reflux quantity of the sludge to remove more surplus sludge and promote the formation of fresh sludge in aeration tank;
②Increase air supply;
③Make a part of sewage after sedimentation for side stream in order to reduce load;
④Increase chlorine in return sludge;
⑤Add hydrogen peroxide instead of chlorine;
⑥Add nutriments in case of the content of nitrogen and phosphorus deficiency;
⑦Adopt step aeration as operating mode;
⑧Add the flocculants as ferric trichloride into secondary sedimentation tank;
⑨Stop temporarily to discharge digestion tank liquor to aeration tank;
（2）Sludge Thickening and Dehydration
Co-treatment for Primary and secondary sludge in different stages has its own advantages and disadvantages, sludge fermentation is easy to be aroused at the time of sludge thickening, but sludge fermentation has the problems on hard compression and turbidness of supernatant liquor; and it is easy for the dehydration of secondary sludge at the time of dehydration. In order to prevent sludge fermentation at the time of sludge thickening, the method of adding coagulant aid can be adopted to improve stability of the sludge.
（3）Sludge, Gate residue and Sinking Slag Landfill
All produced sludge, gate residue and sinking slag are delivered to garbage landfill site for sanitary landfill, and the accessing conditions for them are as follows:
① Require packing or container transportation for sludge, gate residue and sinking slag in order to produce secondary pollution on route;
② Transport implemented according to regulate time and running route
After sludge, gate residue and sinking slag have entered into sanitary landfill, the following points should be made in the process of landfill:
① To cover the sludge with the soil day by day to prevent the production of odor and other environmental hazard;
② To Adopt mixing landfill for sludge and garbage favorable for anaerobic decomposition of the garbage.
（4）Shall regularly monitor the soil of sludge piling site and underground water, and stop continuing to do landfill and use in case of funding pollution problems and then remedial measures are adopted to prevent expansion or transfer of the pollution.
（5）Secondary pollution problems, such as air pollution and underground, should be prevented in the process of piling up and transporting the sludge. Protected special transporter is adopted for sludge transportation; meanwhile, the time of sludge transportation should be controlled strictly in order to avoid peak hours.
（6）Regular monitoring should be made on sewage treatment plant in order to prevent secondary pollution produced by heavy metal in the sludge; and garbage landfill site should be notified immediately if it is found that the heavy metal in the sludge is over standard. Sludge and life sewage are filled separately and strict watertight measures should be done well. In addition, bottom mud leachate is delivered to sewage treatment plant for disposal, and then it is discharged after reaching the standard.
3. Control measures for solid wastes in water treatment plant
（1）The sludge in Water Treatment Plant contains organic materials and various microelement as Ca、Mg、Fe, which not only can be used as the nutrients for plant growth to improve soil fertility and microbial activity of the soil so as to promote crop growth, but also solve the problem of final treatment on the sludge and use it into resource to create certain economic performance.
（2）Packing materials used for life sewage and medicine should be managed separately and placed at special places in order to prevent cross contamination, and then Environmental Sanitation Authority and medicine suppliers are responsible for disposing them separately.
4. Control measures for solid wastes in civil engineer
（1）Shall strengthen monitoring work on pollution treatment of solid wastes along the roads, relevant contents are compiled into Road Vehicles Operating Rules and Road Maintenance Rules and implemented subject to supervision of local Environmental Sanitary Authority.
4. Prevention & control measures for water pollution
1. Prevention & Control Measures for Water Pollution on Road and Bridge Engineering
（1）The protective barrier for the section, where has canal bridge, should be reinforced, and warning sign for dangerous goods vehicle should be set up.
2. Prevention & control measures for water pollution on urban pipe network
（1）Municipal Infrastructure Authority strictly matches the construction of drainage branch on enclosure area and discharges life sewage along the areas into closure pipeline.
（2）Environmental Protection Authority in charge urges the company to make standardized construction on pollution discharge outlet, but the companied within the area of drainage works service are prohibited to discharge the pollution to surface waters.
（3）It is prohibited to dump the garbage to urban surface channel and culvert, and garbage is not allowed to dump into the waters to worsen pollution or block drainage channel.
（4）Shall strengthen the monitoring on water pollution, and regular water quality monitoring should be made for key waters, if the problems are found, please handle them immediately
（5）Shall speed up the construction of Sewage Treatment Plant to guarantee the validity of urban pipe network.
3. Prevention & control measures for water pollution of dredging ditch
（1）Shall strengthen the management along the ditches, and life sewage is prohibited to wantonly pile up so as to avoid the leachate of life sewage flowing into riverway to influence water environment on surface waters.
（2）Pollution discharge outlets, which are privately set up by the companies along the line and the residents, are strictly controlled. At the same time, untreated life sewage and industrial waste water are also controlled strictly to be discharged into riverway.
4. Prevention & control measures for water pollution of sewage treatment plant
（1）The companies with heavy pollution are reformed on the spot, and shutout, stop, merge, transform or move are carried out for those companies, which don’t meet the requirements.
（2）The inflowing water quality to Sewage Treatment Plant must be controlled in order to guarantee normal operation of each Sewage Treatment Plant and make outflowing water quality meet national regulations on waste water discharge standard.
（3）As for the waste water, which is discharged by the companies with great polluting load, must be first pretreated in factory, and accidents reservoir should be built to avoid producing high load shock to Sewage Treatment Plant so as to impact treatment efficiency and effluent water quality.
（4） The measures for preventing the occurrence of risk accidents can be considered from the design and management, and then feasible precautions and measures for accidents can be proposed and Accidents Emergency Response System is established.
（5）Shall strengthen the monitoring on water pollution, including the monitoring on inflowing and outflowing water quality, the Huaihe River water quality of discharge outlet downstream, sludge storage and groundwater environment in treatment & disposal area, ect.
（6）Shall establish running management and operating responsibility system; and then staff training should be made well, in addition, technical examination file is set up, under such system, those who can’t pass technical examination are not allowed to hold a post.
（7）Under occurrence of the accidents, shall guarantee the normal operation of grillage and grit channel so as to make certain reduction of SS and COD in inflowing water; meanwhile, the reasons cab be found out from main pollution source of water collecting system, and relevant factories will adopt corresponding emergency measures to control discharge volume of microbial hazardous substances; if there is irresistible external cause, the conditions, such as dual –circuit power failure, unexpected natural disaster, will lead to the sewage to be discharged outside before being disposed, under such circumstance, source enterprise, in whole or in part, stops to discharge sewage to pipeline in order to make sure of safety waters function.
5. Prevention & control measures for water pollution of water treatment plant
（1）If waste liquid is able to meet the requirements of Sewage Discharge Standard of Grade III after accepting physical and chemical examination made by the Lab of Water Treatment Plant, it can be directly discharged into municipal sewage pipe network.
（2）Life sewage in the period of operation meets Grade III of Integrated Wastewater discharge Standard （GB 8978-1996）after being disposed by treatment facilitates such as anaerobic tank, and then the disposed sewage inflow into urban sewage pipe network.
6. Measures for urban water source protection
The Tianhe River as emergency water source place of urban water supply of Bengbu City, protection should be made for the Tianhe River Flood Prevention Station when it is built and put into operation.
（1）Life sewage produced by the staff of the Tianhe River Flood Prevention Station flows into complete sewage treatment facilities after being disposed in anaerobic tank within living management area and then reaches the standard.
（2）It is suggested that a part of waste water will be reused to the factory as the water for afforestation and road washing after carrying out life sewage treatment of Grade II, in this way, the discharge of sewage and net water use are reduced.
（3）It is suggested to set up sewage collection pipe network in living management area, and the network connects with sewage treatment station. Waste water produced by washing the road still can be discharged into sewage treatment system to realize sewage zero-drainage.
（4）The sewage to discharge outside must reach Grade I of “Integrated Wastewater Discharge Standard”, and then lower culvert of the Tianhe River Gate is discharged into the Huaihe River, any waste water is prohibited, including water discharged into the Tianhe River by runoff erosion
（5）The quality for pipeline construction should be controlled strictly so as to avoid sewage leakage or overflowing into the waters such as the Tianhe River, the Huaihe River caused by damage of sewage pipeline and the occurrence of pollution accidents.
5. Measures for Ecological Environment Protection
（1）On the one hand, the tress within engineering construction scope will be transplanted; on the other hand, engineering construction will destroy surface vegetation within this scope and bring adverse impact on regional ecological environment. In the period of construction, original surface vegetation is destroyed by temporary project, but it will be restored after adopting some recovery measures.
（2）The maintenance for road engineering and river training works should be made well, and it is prohibited to discharge hazardous substances into riverway along with drainage.
（3）In the latter period of the construction and initial operating period, according to landscape design, landscape engineering will be done by implementing afforestation to the section available within the scope of land expropriation, where engineering construction will be done.
（4）At both sides of the roads, those ornamental trees and shrubs, which have strong ability of resisting pollution and absorbing hazardous gas, have the function of sound elimination and dust control and possess certain visual value, are planted, in addition, those planted trees should be suitable for this area, and the mixture of arbor and frutex are planted. Dwarfing trees are planted densely at both sides of the roads, which form ornamental tree wall and is made of sound proof tree wall.
（5）The road waste water not only has higher suspended matters, but contains other pollutants as petroleum; Therefore, the waste water is not allowed to be discharged into farmland soil and waters. Side ditch for drainage should be set up at roadside to collect storm water runoff and make road waste water flow into low lying land, after sedimentation, these waste-water spill into surrounding farmland and ditches to reduce the soil erosion area and the degree for both sides of the roads against pavement rainfall and cut down the volume of water and soil loss.
（6）Extensive aquatic plants are cultivated and planted around the Tianhe River of rivage area, which connect with territory vegetation. In this way, diversified and abundant ecosystem is formed, which is able to cut down polluting impact caused by territory pollution source.
（7） After pumping station is finished, afforestation should be made as soon as possible around the factory, at both sides of the road and empty space in order to realize the restoration of the vegetation, in addition, the slope is stable, and then the rock and surface soil are not exposed.
（8）After ditch dredging engineering is finished, biological diversity in the ditch can be improved through artificially planting some aquatic plants and adding the aquatic animals as fish fry.
（9）Environmental sanitary management on dike should be done well and it is prohibited to dump the garbage. In addition, Environmental Sanitation Authority should enhance supervision and visitatorial inspection.
9. Alternative Analysis
1. Zero-project analysis
Proposal A: Flood control and the implementation plan of ecological environment control project in Bangbu city
Proposal B: No-action and no-project (Zero Proposal).
The Zero Proposal comparative analysis results of eight sub-projects are showed in the tables below.
Table 129: Zero-option Comparison of Tianhe Flood Control Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
| |Comparative results |Comparative results |
|Advantages |Improve the flood control standards and reduce the flood disasters; Environmental | |
| |improvements spur the economic development; After the implementation of this | |
| |project, when the Tianhe River encountering 20-year flood, it will reduce the | |
| |submerged area of 15,000 mu and reduce the submerged villages of 35. It can | |
| |effectively protect economic benefits of the areas around the Tianhe River. | |
| |Raise the water level of the Tianhe River, increase the storage capacity and water | |
| |volume, and ensure the agricultural water use, city emergency drinking water, and | |
| |the need for ecological water at downstream during the short water period of the | |
| |surrounding areas. | |
|Disadvantages |Need to invest RMB65.2 million for construction; |Frequent disasters during the flood season, large tracts of farmland, |
| |Temporary covering area of about 1.5 mu, with the permanent covering area of about |ponds and villages are inundated, which affect the production and living |
| |20.33 mu, also need to remove the connecting buildings along the river side of the |standards of the local farmers and restrict the developments of |
| |original gates. |agriculture economic and aquaculture. Coastal agricultural irrigation is |
| |The construction will cause the temporary adverse impacts on the surrounding water, |submerged, which cause certain economic losses. |
| |air and sound environments, as well as the farm soil. |The water level is decreased during the dry year, and the storage capacity|
| | |is also reduced, urban drinking water is in conflicts with the |
| | |agricultural irrigation water, while the self-purification ability of the |
| | |water body is weakened, so the water quality of the Tianhe River is under |
| | |the threat. |
Table 130: Zero-option Comparison of Longzi Lake Flood Control and Environment Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |Increase the storage capacity, improve the water storage capacity, |Without the investment and requisition of land. |
| |reduce the economic losses which caused by the floods. |Avoid the adverse environmental impacts during the construction period. |
| |Improve the security safeguard of the flood control; lower the extent | |
| |and scope of the flood losses. | |
|Disadvantages |Invest RMB67.6 million on the Longzi Lake drainage station; |A serious situation of water bodies, the water storage capacity is |
| |Occupy about 847 mu of the farmland, beaches and ponds. |significantly reduced, poor capacity to regulate in the flood season; the |
| |Produce certain adverse impacts to the water, air, sound, and ecological|surrounding area may have the waterlogging. |
| |environment. |Bottom land and without drainage facilities, affected by amplitude of setup |
| | |of the Huaihe River’s high-water level, the overflowing water can not be |
| | |discharged, and the economic losses at the surrounding areas is very serious.|
Table 131: Zero-option Comparison of Urban (South of Huai River) Environmental Infrastructure Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |Improve the urban infrastructure and the overall level of the urban areas, promote the |Without construction investment costs |
| |economic development and enhance the investment capacity; |Avoid the various negative environmental impacts which caused during the |
| |Improve the sewerage collection rate of the city; improve the regional water environment and |construction period of Proposal A. |
| |the ecological environment. |Avoid the interference to the residents along the project. |
| |Enhance the capacity of drainage pump station, improve the ability of urban drainage and flood| |
| |control of the security safeguard in flood season. | |
| |Comply with the overall planning of Bangbu City, and it is one of the important measures of | |
| |water pollution control. | |
| |The majority of public support this project and the construction of the project meets the | |
| |public demands. | |
|Disadvantages |Produce the dust, foul smell, sewage, noise, solid waste etc. pollutions during the |The urban infrastructure construction level is below the demand of economic |
| |construction period, destroy the vegetation, cause the soil erosion, increase the temporary |development. |
| |traffic pressure, and damage the landscape of construction site. |Low sewage treatment rate, which is far below the national environmental |
| |Produce the noise during the operation period of pump station; affect the environmentally |protection requirements, further hamper the economic development of the cities |
| |sensitive points within the short distances. |seriously. |
| | |Urban flood control level is not in line with the planning requirements. |
Table 132: Zero-option Comparison of Xijiagou & Baligou Environment Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |Improve the flood control standards and increase the drainage capacity, reduce the flood | |
| |losses; Improve the environment, then lead the economic development. | |
| |Increase 690 mu (Chinese acre) of available land through the transform of Baligou bottom land, | |
| |with the significant economic benefits. | |
| |Remove the sludge and foul smell pollution of the ditches, improve the water quality and reduce| |
| |the pollution to the Huaihe River. | |
| |Demolish the illegal buildings and beautify the city landscapes. | |
|Disadvantages |Need to invest RMB78 million. |Bad current environmental condition, serious pollution of the garbage and the|
| |Need temporary covering area of about 660 mu, with the permanent covering area of about 626 mu.|foul smell, the illegal buildings and waste dumps affect the urban landscape |
| | |seriously. |
| |Need to demolish the buildings. |Poor capacity of storm water drainage, serious flood-submerged situations in |
| |Increase the waste water, dust, noise etc. adverse environmental impacts during the |the surrounding regions, which reduce the farmers’ income and living |
| |construction period at the site. |conditions. |
| |The construction causes the short-term traffic impact. |Weak natural landscape and the infrastructure, which affect the investment |
| | |works seriously. |
Table 133: Zero-option Comparison of Huaishang District flood control and Urban Environmental Infrastructure Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |Improve the flood control standards and reduce the impacts of flood disasters, promote the |Avoid the relocation of the residents in the construction site; maintain |
| |regional economic development and improve people's living conditions. |their current living sate and land-using state. |
| |Increase the coverage of plants of the surface, reduce the soil erosion, which are beneficial to|Avoid the adverse impacts on the environment during the construction and |
| |improve the surrounding ecological environment; beautify and enhance the overall image of the |operation periods. |
| |city. | |
|Disadvantages |Cause temporary adverse impacts on the surrounding sound environment, atmospheric condition and |The problem is at the construction site, where the downstream water of Beifei|
| |so on, destroy the vegetation, cause the soil erosion; Increase the traffic pressure of the |River can not drainage due to the amplitude of setup of the Huaihe River and |
| |surrounding areas temporarily, and damage the landscapes on construction site; |the Huaihongxin River’s high-water level, so it is very vulnerable to have |
| |The road works will permanent occupy some land, and change the land using patterns; Generate the|the waterlogging disasters; |
| |traffic noise pollution and automobile exhaust pollution during the operation. |The current state of water conservancy construction and infrastructure of the|
| | |construction site can not meet the requirements of regional development, nor |
| | |the overall planning objectives, which restrict the urban economic |
| | |development extremely. |
Table 134: Zero-option Comparison of Guzhen County Integrated Environment Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |1. Improve the water quality and city ecological and landscape environment of the Sanba River, |Avoid the various negative environmental impacts which caused during the |
| |improve the people's quality of the living environment, thus to promote the sustainable development of|construction and operation periods of Proposal A. |
| |Guzhen county; | |
| |2. Improve the concentrated sewage treatment rate of Guzhen, building the foundation for the normal | |
| |operation of the sewage treatment plant in the later period; | |
| |3. Increase the construction of infrastructure and improve the investment environment. | |
|Disadvantages |Cause temporary adverse impacts on the surrounding atmospheric, water and noise environments. |The urban infrastructure construction level is below the demand of economic |
| |Destroy the vegetation, cause the soil erosion, increase the temporary traffic pressure and destroy |development. |
| |the landscapes on construction site; |A lot of untreated domestic & production wastewater discharged into the city drains|
| |Produce the noise during the operation period of pump station; affect the environmentally sensitive |or the Sanba River directly; as a result, the pollution of water body is worsening |
| |points within the short distances. |and lowers the urban landscape level. Low capacity of city flood control and |
| | |drainage, subjected to frequent flooding disasters and lower the living standards. |
Table 135: Zero-option Comparison of Huaiyuan County Integrated Environment Improvement Project
|Component |Comparison |Proposal A |Proposal B (No-project proposal) |
|Huaiyuan Flood |Advantages |Improve city's overall capacity of flood control and drainage, increase the flood storage |Avoid the various impacts which caused during the construction and operation |
|Control Project | |capacity of the ponds and increase the drainage capacity of flood discharge trench, so as to |periods of Proposal A. |
| | |mitigate the flood harms to the urban and residents. | |
| | |Improve the surrounding environments of ponds and flood discharge trench, improve the people's| |
| | |quality of life and promote the sustainable development of Huaiyuan. | |
| |Disadvantages |Less dust, waste (sewage) water, noise, solid wastes and other pollution are generated during |Low storage capacity of water storage ponds. Poor capacity of flood discharge|
| | |the construction period. |of the trench, with the more disaster risks. |
| | |Destroy the vegetation, cause the soil erosion, increase the temporary traffic pressure and |Frequent overflow situations of the ponds and flood discharge trench during |
| | |destroy the landscapes on construction site. |the heavy rain, which affect the quality of life of the neighboring |
| | | |residents. |
|Huaiyuan Road |Advantages |Improve the highway grade and traffic level of Huaiyuan Country, perfect the road network |Avoid the noise and automobile exhaust impacts which caused during the |
|Project | |system, promote the city’s development and improve the life of the local residents and the |construction period of Proposal A. |
| | |traffic conditions. | |
| | |Perfect the infrastructure construction of the cereals and oils processing zone, and improve the| |
| | |capacity to attract investment. | |
| |Disadvantages |Generate the dust, water (sewage) water, noise, solid waste etc. pollutions during the |Bad condition of County infrastructure and blocked urban transport and roads,|
| | |construction period, destroy the vegetation, cause the soil erosion, and damage the landscape of|which limit the overall development of Huaiyuan Country and the foreign |
| | |construction site. |exchanges of the residents. |
| | |Generate the traffic noise and automobile exhaust during the operation period, which affect the |Lack of the infrastructure construction in the cereals and oils processing |
| | |nearby residents. |zone, which affect the logistics level and the capacity to attract the |
| | | |investment. |
Table 136: Zero-option Comparison of Wuhe County Mohekou Integrated Environment Improvement Project
|Comparison |Proposal A |Proposal B (no-project proposal) |
|Advantages |1. Construct the new drainage pump station, improve the capacity of flood control and |Avoid the relocation of and the requisition of the farmlands of the residents in |
| |drainage on the construction site, reduce the regional disaster risks, improve the |the construction site, maintain their current living sate and land-using state. |
| |investment environment and promote the sustainable economic development. |Avoid the adverse impacts on the environment during the construction and operation|
| |2. Construct the new surface water plant and sewage treatment plant, enhance the safety|periods; stop the pollution risks of industrial wastewater to the Huaihe River. |
| |of the regional drinking water, and boost the discharge of sewage up to standard of the| |
| |enterprises in the park, so as to reduce the pollution to the Huaihe River. | |
| |3. Improve the level of infrastructure and spur the development of related industries, | |
| |as well as provide more employment opportunities. | |
|Disadvantages |1. Cause temporary adverse impacts on the surrounding atmospheric, water and noise |1. Along with the economic development of the park, under the lack of |
| |environments. |infrastructure, the discharge of the sewage from the enterprises will increase the|
| |2. Relocate the residents, requisition of the farmland, destroy the vegetation and |volume of sludge in the big ditches and the pollution levels, further to threaten|
| |natural landscape; |the security of groundwater, and affect people's quality of life and sustainable|
| |3. Sewage treatment plant, water purification plant, roads etc. will permanent occupy |economic development; |
| |some land, and change the land using patterns. |2. Low level of the enterprise sewage treatment, which cause the pollution to the |
| |4. Enterprises generate the wastewater, exhaust emission and noise pollutions during |Huaihe River. |
| |the production. | |
| |5. Sewage treatment plant and other plants generate the foul smell, sludge and other | |
| |pollutants during the operation, which affect surrounding environment to a certain | |
| |degree; | |
| |6. Raise the sewage treatment costs and increase the living expenses of the residents; | |
2. Comparison and selection of dredging method for Longzi Lake
There are two dredging methods to dredge the bottom mud; one is adopting the twist-inhale dredger, while another is using the hydro slurry unit set to dredge
Dredging works first begins from the southern dredging area in Nanhu District. Preparation work should be done before dredging, including the operation of barriers clearance on River Surface and Beds, flow guide for construction and the establishment of reclamation dam at piling up site and discharge outlet. Barriers Clearance Operation is to remove the barriers available for fishing, such as deadman, bamboo rod, waste fishing net, shipwreck and submerged dike, in order to ensure the safe of dredging construction.
Flow guide for construction generally can be classified into two basic methods, namely, Whole –Section Cofferdam Method and Sub-Section Method. The basic features of Whole –Section Cofferdam Method refer to that main stream channel is intercepted with one time and water flow is led to the side of outlet structure. And flow guide for Sub-Section Method is also called Sub-Section Method or flow guide in riverbed. The so-called sub section means that riverbed is formed by several dry -land building pits and is constructed sectionally.
Hydro slurry unit set is adopted for construction, and the builders operate the high pressure water jet to cut off high concentration slurry, and then slurry pumping station delivers them into piling up site by soil discharging pipeline. When retention time for bottom mud at piling up site has been over designated retention time, dredging project engineering wastewater produced at upper layer is discharged from outlet structure of the piling up site.
When amphibious environmental sludge clearance machine is adopted to carry out the construction, the scoop of the dredger is put on the mud layer to dig out polluted sludge, and then the slurry is formed by the mixture of soil and water, which is delivered to soil discharging pipeline by using the function of mud pumping station through dredging tube. Soil discharging pipeline can be linked to land based pipeline with surface water floating pipeline and also to downcast pipeline with by surface water floating pipeline and then to surface water floating pipeline, at last, it links land based pipeline to discharge the slurry into piling up site.
The facilities at piling up site, such as reclamation dam and outlet structure, are set up and installed around selective bottom mud piling up site.
The comparision for applicable conditions andadvantages & disadvantages of two dreaging methods is made as the table below:
Table 137: Advantages & Disadvantages Comparison for Dredging Methods
|Item |Hydro Slurry Unit Set |Amphibious Environmental |
| | |Sludge ClearanceMmachine |
|Main Machinery and |Floating-body, slurry pump, high pressure water jet, |Dredger, slurry pump, |
|Equipment |pipelines and power installations |pipelines and positioning devices |
|Applicable Condition |Rivers and rivers with shallow water and less water |Larger scope of the water bodies and broader |
| |volume. |applicable conditions |
|Energy Consumption |Slurry pump and high pressure water jet consume the |Slurry pump and high pressure water jet consume the |
| |electricity. |electricity. |
| | |Dredger consumes a lot of fuel. |
|Work efficiency |Lower efficiency, greater construction intensity and labor|Higher work efficiency, less construction workers, as |
| |intensity, as well as the longer construction period. |well as the shorter construction period. |
|Early Period |Need to construct by drying the ponds, thus need the flow |Construction for drying resertvior is not required, |
|Preparation |guide before the construction. |and flow guide is not required before construction |
|Discharge Distance |Short discharge distance |Long discharge distance, with flexible discharge |
| | |distance. |
|Precision |Manual control, higher precision of the depth, without the|there is no great difference between the precision |
| |restriction of the bottom topography, the geological and |degree and hydro slurry unit set |
| |surrounding environments. | |
|Environmental Impact |Electricity consumption only, with fewer pollutants. |Generate the fuel exhaust |
| |Build the cofferdam for flow guide before the |Less dredging works with less discharge volume of the |
| |construction, so as not cause the water suspensions rise |dredging residual water. |
| |sharply. | |
| |Less dredging works and the generated project residual | |
| |water can be used for the high pressure water jet, with | |
| |the less discharge volume of the residual water. | |
|Ecological Impact |Because of the small impact on the water quality, it has |Less impact on water quality, and lighter impact on |
| |the less impact on the phytoplankton & zooplankton and |water phytoplankton and zooplankton |
| |fish in the water consequently. |Less impact onbenthic fauna and their survival |
| |Less destroy to the benthic fauna and their survival |environment |
| |environment of manual dredging. |High precision of depth, available for the reduction |
| |High precision of depth, available for the reduction of |of the dredging volume of the bottom mud and |
| |the dredging volume of the bottom mud and thecovering area|thecovering area in piling up site. |
| |in piling up site. | |
As a result of the thickness of the project’s pollution layer is within 0.3m, and average depth of the Longzi River is around 3m, but it is not realizable to construct with drying reservoir for huge area of river water. From the comparison made for Advantages & Disadvantages Comparison for Dredging Methods and comprehensive analysis on the construction precision, environmental impact and disposal situation of the dredging bottom mud, it is thought that the hydro slurry unit set is suitable for the construction of this project.
3. Comparison and Selection of Closure Pipelines Route of Sewage Outlets to River Located in West of Guzhen
Closure Pipelines project of Sewage Outlets to River Located in West of Guzhen is connecting the closure pipelines in the pond below the railway bridge of the park located in the west of the city, which intercepts the sewage of west of the city to the sewage main pipe of Huangyuan Road. According to the field inspection, the pipelines route of this project has two options, which are Proposal A and Proposal B respectively.
Proposal A: Below the railway bridge of the park located in the west of the Guzhen→Railway Station Square→Huihe Road→Join the sewage main pipe of Huangyuan Road;
Proposal B: Below the railway bridge of the park located in the west of the Guzhen→Railway Station Square→Huihe Road→Shengli Road→Miaogang Road→Join the sewage main pipe of Huangyuan Road;
Both the advantages and disadvantages of the two proposals are shown in the table below.
Table 138: Comparison of Closure Pipelines Route Proposals of Drinking Water Source
| |Proposal A |Proposal B |
|Advantages |1. Due to shorter length of the pipelines, so the |1. Shengli Road and Miaogang Road are not the main |
| |investment is smaller; |roads, and the traffic flow is relatively small. |
| |2. Due to the wider road way of Huhe Road, the laying |2. Fewer public facilities at the both sides of Shengli|
| |of the pipelines shall have little impact to the |Road and Miaogang Road, such as hospitals, schools etc.|
| |traffic. |which are vulnerable to be affected by the |
| | |construction. |
| | |3. Shengli Road and Miaogang Road are the roads under |
| | |the plan to modify of Guzhen, the laying of the |
| | |pipelines and the road construction can be carried out |
| | |simultaneously. |
|Disadvantages |1. There are more prosperous sections at the both sides|1. Longer length of the pipelines, with the bigger |
| |of Huihe Road, such as a number of schools, hospitals |investment; |
| |etc. maybe affected by the construction. |2. Narrow road and it is not convenient for |
| |2. Huihe Road is the main road of Guzhen with the heavy|construction. |
| |traffic; the construction will generate a greater | |
| |impact to the traffic. | |
In summary, this environmental evaluation deems Proposal C is the best on the environment, on the one hand, the set of sewage outlet along the Huaihe River must obtain the written consent of water conservancy department and the environmental protection department, in principle it can not increase new sewage outlet along the Huaihe River shore; on the other hand, according to the modification notice of “Pollutant Discharge Standard of Municipal Wastewater Treatment Plant” GB18918-2002 and suggestions of Environmental Protection Bureau, the sewage discharged into the Huaihe River must meet Grade I a standard, but the emission concentration of the pollutants of Grade I a standard can not meet the requirements of "Standard for Irrigation Water Quality” (GB5084-92) , can not be used for irrigation. As the tail water of mainly proposed fine chemical wastewater, if it is discharged into the farm irrigation trench, it will cause certain pollution risks on the surrounding soil, groundwater and crops, particularly for the water crops. We can see that, it is not suitable to discharge the tail water of sewage treatment plant to the Mochongyin River, thus this environmental evaluation suggests to discharge the tail water of sewage treatment plant to diversion channel of the Sanpu River drainage station through the pipelines, then through the outlet of drainage station to discharge the tail water of sewage treatment plant to the Huaihe River. Proposal C is the recommended proposal of this environmental evaluation.
4. Comparison and Selection for the Establishment of Sewage Treatment Plant
1. Inflowing Water Quality
The mainstay of Bengbu Chemical Industry is fine chemicals and key industries relate to biochemistry, organic intermediate and chemical products, ect, the products of which cover many chemical production spheres, such as feed additive, food additive, additive, flavoring material, medicine, insecticides, paint, chemical reagents and organic intermediate. Meanwhile, biochemistry, organic intermediate and medicine consist of there features of Bengbu Municipal Chemical Industry. Mo Hekou Industrial Area of Wuhe River Economic Development Zone, which focus on fine chemicals and takes general industry into consideration. Survey for the condition of existing signed enterprises can refer to the following table.
Table 139: Survey for Enterprise Basic Information of MoHekou Industrial Park
|S/N |Enterprises Name |Products |Production Type |
|1 |AnHui Juyuan Chemical Co., Ltd |o-phenylendiamine |Chemicals |
|2 |WuTong Battery |Battery |Light Industries |
|3 |AnHui Longhai Seed Industry |Seed processing |General processing |
|4 |AnHui Yongheng Textile |Textiles Products |Light Industries |
|5 |BengBu Fu Ande |Filter |Light Industries |
|6 |BengBu Clutural Color Printing |Printing and Packing |Light Industries |
|7 |TongDa Municipal Administration |Insulated Material |Light Industries |
|8 |BengBu Tengfei insulated Container |Building |Building |
|9 |BengBu Municipal The Huaihe River Rubber Ingredients |Activator |Chemicals |
|10 |BengBu Municipal GuangHua Fine Chemicals Plant |Activator |Chemicals |
|11 |BiaoShen Electronic Technology Co., Ltd. |Electronic Products |Light Industries |
|12 |Japan Cherry Bolossom Technologies Co., Ltd |Daily Chemicals |Chemicals |
|13 |Qian XinKun International Co., Ltd |Textiles and light |Light Industries |
| | |industrial products | |
|14 |Beijing Feige Dadi Cultural and Art Cnter |Handicraft |Culture |
|15 |Jiasi Chemicals |m-chloroaniline |Chemicals |
|16 |Shanghai Dexiang Timber Co., Ltd |Density Plate |General processing |
|17 |Wuhai Kaidi Electric Power Co., Ltd |Power Supply |Straw Power Supply |
|18 |TaiDe Development Co., Ltd |Daily Chemicals |Chemicals |
|19 |Anhui Baishi Chemical Co., Ltd |Vanillin |Chemicals |
|20 |Bengbu Longchang Rubber Products Co., Ltd |Rubber Tubing |Chemicals |
|21 |Nantong Huaxia Chemical Co.,Ltd |Plastic Products |Chemicals |
|22 |Hefei Jianlong Health and Technology Co., Ltd |Gelatine |Chemicals |
After Sewage Treatment Plant established in Park, the drainage for regional enterprises shall implement Grade 3 of Integrated Wastewater Discharge Standard (GB8978-1996). Take CODcr index as example, Grade 3 Standard of CODcr is 1000mg/L for chemical area, which possibly involves the industries, such as dye, organ phosphorous pesticide, medicine pharmaceutical ingredient and biological pharmacy, it is higher than the requirements of general enterprises,that is, Grade 3 Standard of CODcr is 500mg/L. Therefore, Jinshui water quality of Water Treatment Plant should refer to those sewage treatment plants, which have been established and formed certain industrial scale, e.g. Sewage Treatment Plants in Shanghai and Nanking Chemical Area.
Shanghai Chemical Industrial Area is located at North Bank of Hangzhou Bay and its planning area is 29.4 km2. This is one of the largest -scale investment industrial projects in China during the period “Tenth Five Years Plan” and is the first special development zone taking petroleum and fine chemicals as orientation, meanwhile, it also becomes the southern center of Four Great Industrial Bases in Shanghai. The development of Shanghai Chemical Industrial Shanghai Area has formed certain scale, at present, so many Transnational Corporations referring to British Petroleum and Chemical Cooperation, BASF Aktiengesellschaft, Germany Bayer, Germany Degussa, America Huntsman Corporation, Mitsubishi Gas Chemical Company, Inc, Sumitomo and world famous public utility enterprises including Suez, VOPAK, France Air Liquide Group, Praxair Electronics, ect all have been settled in this Area. Shanghai Chemical Industrial Area has formed a complete products chain, which consists of three parts, namely, the first part is the up-stream products that include Naphtha, ethylene and so on, the second part is middle-stream products that involve isocyanate, polycarbonate, ect and the last part is downstream products that refer to fine chemical, synthetics and so on. In order to meet discharge requirements of biochemical production enterprises as petrochemical industry, a Sewage Treatment Plant has been established and operated in Shanghai Chemical Industrial Area, its sewage treatment scale is 7000m3/d and it mainly receive production wastewater produced by the projects ofGaohua Phenolacetone, PVC of Tianyuan Chemicals, Bisphenol of Bayer Company, poly-isocyanate and so on.
Nanjing Chemical Industrial Park is located at Jiangbei Region of Nanking. This region is the earliest chemical base where has many large- scaled enterprises at present, such as Yangzi Petrochemical Company, Sinopec Petrochemical Group, BASF-YPC Company Ltd, a Joint Venture made by BASF Aktiengesellschaft and Nanking Chemical Indurstrial Company. Nanking Chemical Industrial District covers 41 km2, where mainly focuses on the development of petrochemicals, basic organic chemical materials, chemicals, polymer material, new type chemical materials and life medical projects.
Inflowing index for above mentioned two sewage treatment plant in chemical area can be seen in the table below.
Table 140: Inflowing Water Qaulity of Sewage Treatment Plant in Haihua and Nanking Chemical Area
|Name |Inflowing Volume (m3/d) |CODcr(mg/L) |BOD5(mg/L) |SS |
|Sewage Treatment Plant in Shanghai |7000 |700 |250 |350 |
|Chemical Area | | | | |
|Sewage Treatment Plant in Nanking |12500 |1000 |300 |300 |
|Chemical Area | | | | |
We can see from the introduction for the said 3 chemical areas that Mo Hekou Park has obvious similarities on industrial features with another 2 chemical areas in Shanghai and Nanking, therefore, the analogy for the condition of inflowing water quality between above mentioned 2 chemical areas will have more important guiding significance on determining the water quality of this project.
According to the analogy made for the sewage treatment plants of this project and other domestic sewage treatment plants, the inflowing water quality of industrial park is decided to be set as follows: CODcr450mg/L, BOD5120mg/L, SS200mg/L, NH3-N30mg/L, and TP3.5mg/L.
Sewage treatment plants in chemical area are different from other general municipal sewage treatment, its main inflowing water is indusial waste water in industrial park, so organic content in pollutants is generally lower than urban sewage, from the angle of conservative design, if inflowing water quality is decided as per upper limit statistics concluded by research and investigation, it will be favorable to guarantee the reliability for late sewage treatment to reach the standard.
Therefore, the opinion of this environmental evaluation is that feasible studying inflowing water quality to be decided is relevantly lower, and it is advised to make fully demonstration on subsequent design.
2. Feasibility for Technology Standard
Inflowing water quality in Sewage Treatment Plant of Mohekou Chemical Industrial Area is the industrial wastewater primarily produced by Fine Chemical Enterprises and Pharmaceutical Enterprises, its organic pollution concentration is very high and the biodegradability is worse, therefore, these wastewater need to be disposed with high degree, and multi-system complex treatment plan must be adopted in order to realize the treatment for those produced wastewater.
The industries in Tianjing Municipal Chemical Industrial Area take green fine chemicals and ocean chemicals as leading role and primarily focus on the development of highly valued high-tech industries such as pharmaceutical chemicals and new materials. Through the comparison and selection & argumentation for sewage treatment technology and the survey condition for the analogy of sewage treatment works in chemical area, Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology is finally adopted in order to ensure that final water quality meets Grade 1 Standard B of “Pollutant Discharge Standard of Municipal Wastewater Treatment Plant” (GBl8918-2002).
Hydrolytic Oxidation Tank performs the function of anaerophyte to hydrolyze macromolecular persistent organic substance in water into molecular degradation labile organic substance in order to reach the purpose of improving biodegradability of wastewater and partial organic substance degradation. The fillers are thrown into Reaction Tank when the water of Hydrolytic Oxidation Tank outflows into it. The specific surface area of the filler is great, so it is available for microorganism to absorb and grow. When aeration oxygenation is made, ascending buoyancy of air bubble propel the fillers and around waters to flow, when cutting through the gap of the water and fillers, the air is reblocked by the fillers and cut into small bubbles. In such process, the bubbles are mixed with wastewater after fully stirring, so the connection and delivering efficiency between biological membrane and oxygen are strengthen. The growing microbial biomass on the fillers is greater than floating microbial biomass in water, which greatly improves treatment efficiency and is effective to prevent sludge expansion, especially for the fungus with long history and periodicity, such as nitrifier, and the fillers can ensure their ability of viability and propagation, so it is favorable for nitrification. The project adopts the technology of chemical desulphurization and polyaluminium is determined to be as technological medical reagent for desulphurization; the process is that chemical desulphurization reagent is put into Biochemical Reaction Tank, and then the produced sediments can be removed with the excess sludge.
The filtration of membrane in MBR (membrane bioreactor) can make macromolecular fully intercepted into Bio-Reactor to realize complete separation of HRT and SRT in order to keep higher MLSS and longer SRT in reactor, in this way, favorable conditions are created to improve removal efficiency for persistent and dissolved organic substance, and the volume of excess sludge is greatly decreased.
According to survey condition for CODcr removal rate index at different stages of Sewage Treatment Plants with same technologies, 3 main technologies, which include Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology, are adopted to realize CODcr removal performance, and predicated outflowing water quality is as follows:
Table 141: Schedule for CODcr Removal Effect and Predicated Outflowing Water Quality on Key Technologies
|Project |CODcr Concentration |Removal Rate |
|Inflowing |1000mg/L | |
|Hydrolytic Oxidation Pond Outflowing |600 mg/L |40% |
|Bio-Reaction Tank Outflowing |90 mg/L |85% |
|MBR Unit Outflowing |45 mg/L |50% |
We can see from Analogic Survey Condition that the adoption of Hydrolytic Oxidation+ Bio-Reaction+MBR Filter Technology can make CODcr reach Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GBl8918-2002), Grade 1, Standard A.
The opinion of this environmental evaluation is that outflowing water quality cannot meet Grade 1 Standard A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GBl8918-2002) by adopting the technology for A2/0 microporous exposure oxidation channels treatment; therefore, the technology should be fully demonstrated on subsequent design.
10. Public Consultation
For specific form, content and time of the information publicity and public participation for this project, refer to Table 142.
Table 142: Summary of public participation and information publicity work
|Content |Mode |Place |Time |Executive body |
|Informatio|Issuance of announcement at the |E-announcement column of Huaishang |2007.1.26 |Huaishang district government & |
|n |construction site |district government | |environmental evaluation agency |
|publicity | | | | |
|of the | | | | |
|proposed | | | | |
|project | | | | |
| | |Administrating Committee of Mohekou |2007.1.30 |Office of Wuhe County World Bank |
| | |Town Park | |Project Leading Group and |
| | | | |environmental evaluation agency |
| | |Open Government Affairs Column of |2007.1.27 |Office of Guzhen County World Bank |
| | |Guzhen County Government | |Project & environmental evaluation |
| | | | |agency |
| | |Announcement column of Huaiyuan County|2007.1.26 |Office of Huaiyuan County World |
| | |Government | |Bank Project & environmental |
| | | | |evaluation agency |
| | |Announcement column of Qinji town and |2007.1.28 |Yuhui District Government & |
| | |Changqing township | |environmental evaluation agency |
| |Online project information |Website of Bengbu Municipal People’s |2007.3.30 |Municipal Project Office & |
| |announcement |Government | |environmental evaluation agency |
| |Publication of information in the |Bengbu Daily |2007.4.4 |Municipal Project Office |
| |newspaper | | |&environmental evaluation agency |
| |Publication of information in the |Publication of information in the |2007.8.10 |Municipal Project Office & |
| |newspaper |newspaper | |environmental evaluation agency |
| |Announcement of the full text of |Libraries of the city and three |2007.8.10 |Municipal Project Office & |
| |environmental evaluation report |counties | |governments of the three counties |
|Public |Seeking public opinions |Old urban district, Longzihe district,|2007.1.25～1.30|Municipal Project Office & |
|participat|（simultaneous release of |new & hi-tech zone and economic | |environmental evaluation agency |
|ion for |questionnaire for public |development zone | | |
|the first |participation） | | | |
|phase | | | | |
| | |Qinji town and Changqing township |2007.1.28～1.30|Yuhui District Government & |
| | | | |environmental evaluation agency |
| | |Xiaobengbu village, Shuangdun village,|2007.1.26～1.30|Project Office of the district |
| | |Wuan village, Jintai village and | |government & |
| | |Chengtai village in Huaishang district| |environmental evaluation agency |
| | |Afflicted villages near Mohekou Town |2007.1.30 |County Project Office, |
| | |Industry Park and Sanpu village | |Administrating Committee of the |
| | | | |Park & environmental evaluation |
| | | | |agency |
| | |Chengguan town of Guzhen county and |2007.1.28～1.30|Office of Guzhen County World Bank |
| | |near suburban villages | |Project & environmental evaluation|
| | | | |agency |
| | |Chengguan town of Guzhen county and |2007.1.26～1.28|Office of Huaiyuan County World |
| | |near suburban villages | |Bank Project Leading Group & |
| | | | |environmental evaluation agency |
|Public |Public consultation forum |Meeting room of Wuhe Mohekou Industry |2007.7.6 |Administrating Committee of Mohekou|
|participat|（ imultaneous release of |Park Administrating Committe | |Park & environmental evaluation |
|ion for |questionnaire for public | | |agency |
|the second|participation） | | | |
|phase | | | | |
| | |Meeting room of Guzeh county |2007.7.9 |Guzhen County Development & Reform |
| | |government | |Committee World Bank Project |
| | | | |Leading Group & environmental |
| | | | |evaluation agency |
| | |Meeting room of Huaiyuan county |2007.7.9 |Huaiyuan County Development & |
| | |government | |Reform Committee World Bank Project|
| | | | |Leading Group & environmental |
| | | | |evaluation agency |
| |Seeking public opinions |Old urban district, Longzihe district,|2007.7.4～7.10 |Sub-project Office, Owners of the |
| |（simultaneous release of |new & hi-tech zone, economic | |city and district projects and |
| |questionnaire for public |development zone, Huaishang district | |environmental evaluation agency |
| |participation） |and Yuhui district and | | |
| |Seeking experts’ opinions |Letter of seeking opinions is sent in |2007.7.5～7.15 |Office of Bengbu City World Bank |
| | |Bengbu city | |Project & |
| | | | |environmental evaluation agency |
1. Public Participation
The public notification of project information means the announcement of the content of the intended project and the potential environmental impact to the public of the project site, so that the group affected by this project and the local public can be acquainted with relevant information in time.
The information publicity of this project is carried out in three stages by the ways of publishing the issue information in newspapers, publicizing the information of planned construction project in the government bulletin board, showing the project’s content and the full text of the environmental impact assessment (EIA) report publicly in the public website, displaying the EIA documents in the local library at the construction location, etc.
• During the first stage, in premise of preliminary determination of the project, publicize the information of the project, which plans to use the World Bank loan, in the government bulletin board and local newspapers at the project construction place;
• During the second stage, in preliminary development of the environmental impact assessment work, based on the completion of establishing the General EIA Summary, publicize the project basic situation and the potential environmental problems in local government’s website, in order to let the local public gain related data and information promptly and to collect and feed back the public opinions;
• During the third stage, after completing the first draft of the environmental impact assessment report, publicize all the EIA reports of the sub-projects and the overall EIA report in the public website, publicize the EIA reports of the sub-projects in the Bengbu local website and display the report text in the local library at the construction place, to facilitate public of the construction place to get the related data. The overall EIA report is publicized in the World Bank website after being translated into English.
At present, information public work at the first stage and the second stage has been handled and completed by the EIA agency together with the construction agency and local government of the construction place from January to March in 2007. In April, 2007, the World Bank project leading office in Bengbu city has demonstrated the project construction information publicly in "the Bengbu Daily" with newspaper publicity, and announced the website for detailed information issue and the contact telephone. At the same time, PMO has publicized “information publicity of the construction project of Bengbu comprehensive environment treatment with the World Bank loan” in the website of Bengbu people's government. Various administration agencies of the project have done the project construction information publicity in the construction local government bulletin board respectively. Nobody proposed the objection to the project’s construction until now.
The publicity of the third stage has been carried out from August 8, - August 12, 2007. The city PMO published the publicizing information of the EIA report of the planned project with the World Bank loan on Bengbu Daily, and published the way to get the materials and the consultation telephone. No feedback has been obtained by present.
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Figure 23: Online Public Notification of Project Information
[pic] [pic]
Public Notification in Guzhen County Public Notification in Huaiyuan County
[pic] [pic]
Public Notification in Huaishang District Public Notification in Wuhe County
Figure 24: Project Public Notification in the Project Location
[pic]
Figure 25: Public Notification of Project Information in Newspaper
Table 143: Data sheet of information publicity of Bengbu World Bank Project
|Serial |Name of Project |Project covered content |Time of Completion|Time of Publicity|Place of publicity |
|number | | | | | |
|1 |Tianhe flood prevention |Build one new Tianhe drainage station |2007.8.8 |2007.8.10 |Bengbu City government |
| |drainage station project | | | |website |
| | | |2007.8.10 |2007.8.12 |Bengbu City Library |
|2 |comprehensive environment |1）Xijiagou ---river route scouring、bank enhancing、bridge construction |2007.8.8 |2007.8.10 |Bengbu City government |
| |improvement project of |2）Baligou---treatment of 3.1km river route, including river route scouring、bank | | |website |
| |Xijiagou and Baligou |protecting、corresponding bridge construction, construction program of Xiangjiao Dam | | | |
| | | |2007.8.10 |2007.8.12 |Bengbu City Library |
|3 |Improvement project of |1）3 drainage pumping stations, 1 promotion pumping station；2）rain and sewage collecting pipes in |2007.8.8 |2007.8.10 |Bengbu City government |
| |urban(south of Huaihe |economic development district；3）rain and sewage pipes in high-tech district；4）rain and sewage pipes | | |website |
| |River)environmental |in Longzi Lake district and Lilou Road | | | |
| |infrastructure and facility | | | | |
| | | |2007.8.10 |2007.8.12 |Bengbu City Library |
|4 |Longzi Lake project of flood |1） Longzi Lake drainage station |2007.8.8 |2007.8.10 |Bengbu City government |
| |prevention and drainage |2）Longzi Lake silt cleaning program, and program of bank improvement | | |website |
| |station and environment | | | | |
| |improvement | | | | |
| | | |2007.8.10 |2007.8.12 |Bengbu City Library |
|5 |Huaishang District（North bank|1）Wuxiaojie Street of Drainage station and the corresponding engineering；2) extension of Xiaobengbu |2007.8.8 |2007.8.10 |Bengbu City government |
| |of Huai River）project of |drainage pumping station；3）newly building of Wangxiao Ditch drainage pumping station and the | | |website |
| |flood drainage prevention & |Yinshuida Ditch; 4) Binhe Road, North Daqing Road, Wuzhong Road, Houlou Road, East Zhengfu Road; 5) main| | | |
| |Infrastructure and facility |sewage collecting pipes project from Wobei city district to Huaishang District | | | |
| |improvement | | | | |
| | | |2007.8.10 |2007.8.12 |Bengbu City Library |
|6 |Project of Guzhen County |1）transformation and newly building of sewage collecting and drainage pipes; 2) ditch and pond |2007.8.8 |2007.8.10 |Bengbu City government |
| |comprehensive environmental |improvement, slope protection, forestations; 3) main collecting pipes construction from east bank of | | |website |
| |improvement |Sanba River to sewage treatment factory; slope protection of the south section of Sanba River, | | | |
| | |forestations and the river path; 4) drainage ditch scouring and embanking; flood prevention crest path; | | | |
| | |4 new culverts and sluices building, 5 new pumping stations building and renewal transformation of; new | | | |
| | |bridge building and slope protection | | | |
| | | |2007.8.10 |2007.8.12 |Guzhen County Library |
|7 |Mohekou project of |1）Sanpu Lake drainage pumping station and it corresponding engineering；2）water treatment plant and |2007.8.8 |2007.8.10 |Bengbu City government |
| |comprehensive environment |its corresponding pipe network；3）sewage treatment plant and its corresponding pipe network；4）6 rain | | |website |
| |improvement in Wuhe county |water collecting pipe engineering in the zone | | | |
| | | |2007.8.10 |2007.8.12 |Wuhe County Library |
|8 |Huaiyuan County ‘s project of |1) drainage ditch engineering；2）drainage pipe engineering；3）2 drainage pumping stations；4）road |2007.8.8 |2007.8.10 |Bengbu City government |
| |comprehensive environment |engineering and the corresponding rain water collecting pipe engineering in West City District | | |website |
| |improvement | | | | |
| | | |2007.8.10 |2007.8.12 |Huaiyuan County Library |
|9 |EIA overall report （in |summary of 8 sub-projects |2007.8.10 |2007.8.12 |The website of Would Bank |
| |English） | | | | |
2. Public participation
This project involves a wide area, the composition of impacted people is complex, the urban project involves mainly the inhabitants in the old city and some villagers in the new planning area; the 3 counties projects are far away from the urban area, most of the impacted people are farmers, so the public negotiation and public participation should be launched according to the different areas and people.
This project adopts various forms such as public negotiation workshop, opinion consultation letters to experts, public remarks and survey. Public participation is divided into 2 phase, the first phase is at the beginning of EA, during the preparation of EA outline from Jan. 2007 to Mar.2007, the second phase is when the draft EIA report is almost finished.
• The first public participation is primarily by ways of on-site visits and investigation tables providing. There are 240 public participation investigation tables provided for 8 sub-projects altogether and 220 tables taken back, with the returning ratio of 92%. The regions investigated covered the Bengbu urban district and construction places of the three suburban counties.
• In the work of the second public participation, different participating measures were adopted in view of the different project. With EIA work progressing, the main affected crowd and the region were screened, public opinion collecting was carried on, and the project environmental impact symposium and the experts’ opinion collecting work were simultaneously done.
1) In the scope of Bengbu planned area, every construction agency and the EIA agency visited the main affected region together and distributed in the investigation tables for public participation. This time in the main affected regions around the 5 projects in the urban district (city draining water, project Longzi Lake project, Xijiagou project, Huaishang area project and Tianhe drainage pumping station project), 550 investigation tables were provided altogether for public participation, among which 531 tables were taken back with the returning ratio 97%.
2）In view of the project category and environment problem of the project planning to use the World Bank loan, the local experienced experts’ opinions and the suggestions were asked. Recommended by the Bengbu department concerned and the construction agency, senior experts in the hydraulic engineering, the municipal administration infrastructure engineering, as well as the environmental protection aspect, were invited. EIA agency designed specially the consultation table to seek opinions from each expert and seven of them proposed the valued suggestion to the project construction in the engineering technical and the environmental protection aspect.
3) In view of the characteristics of suburban county projects, the EIA agency together with the construction agency developed symposium with the affected publics on the environmental impact of project construction in Huaiyuan County, Guzhen County as well as Wuhe County Mohekou Town. At the same time the investigation tables were provided for public participation in order to collect the local public's opinions and suggestions widely and to feedback promptly the public’s opinion and worries to the construction agency and each sub-project PMO. This time 300 tables altogether were provided for public participation in the three suburban counties of construction, among which 273 were taken back with the returning-ratio 91%.
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Figure 26: Public participation survey and public workshops
1. The First Public Participation Survey
220 copies of public participation survey report were distributed in the first public participation survey, 20 copies for Huiyuan County, 50 copies for Guzhen County, 20 copies for Wuhe County and 130 copies for the urban area.
1. 100% of those surveyed supported the construction of this project
2. 98% of the survey respondents believed that the water drainage system of Bengbu was not clear enough, and were looking forward to the improvement of the municipal water drainage system.
3. 70% of those surveyed have suffered from flood, and 30% have even suffered from flood frequently.
4. Almost all of the survey respondents believed that it was very necessary to improve the flood control and flood drainage capacity, while 35% considered it necessary.
5. About 80% of the surveyed peoples think that the current drainage system of Bengbu isn’t complete, and it impacts the water quality of urban canals, the pollution of Xijiagou and Baligou is serious, the sanitation condition of the surrounding environment is bad, the garbage at 2 sides of the rivers and odor pollution are evident.
6. 35% of those surveyed believed that traffic would be affected during the construction of the project, 25% believed that there would be noise impact, while 20% believed that they would suffer from the dust and 20% believed that they would be affected by the temporary land occupancy. 70% of those surveyed could accept the impact of the construction, 30% could accept the impact on the premise that measures have been taken to reduce them. It could be concluded that the citizen is willing to accept the construction’s impact on them for the sake of the improvement of their living environment.
7. 100% of the survey respondents believed that the project would play a positive role in many aspects, so the construction of it should be carried out soon.
2. Investigation of the 2nd public participation
Based on the investigation from July 4 to July 10, 2007, 850 investigation tables were provided for public participation of the urban area and the sub-urban projects, among which 803 tables were taken back with the returning ratio 94%.
1. Main conclusions
• Among the surveyors, 100 percent of the surveyors expressed their supports to the construction of Bengbu city project of the facility for flood prevention and drainage pumping and for the comprehensive environment improvement, using the World Bank. They thought that this project is a good project benefiting the people and promoting the urban development. The surveyor thought generally that the project construction can enhance the ability of flood and drainage prevention and safety controlling in the city’s flood season, perfect city’s infrastructure, improves the urban combined environment, enhance the residents’ living quality of life, promote the city overall image, enhancement the ability to attract commercial investments, and promote the development of local economy.
• Above 90% of the surveyors all said they know about the construction project situation, other people said they know about the project construction of Bengbu city project of the facility for flood prevention and drainage pumping and for the comprehensive environment improvement, using the World Bank, which indicated that the information publicity of the this project achieved remarkable success.
1．For Tianhe flood prevention project:
• The surveyors generally reflected that drainage condition was serious in the flood season in the Tianhe area, especially the riverside marsh land. The drainage water can only disperse into the Tianhe, not outside into Huaihe River, which caused the great loss in agricultural production. The construction of large-capacity drainage pumping station is extremely needed;
• On the other hand, after the Tianhe river has been recognized as the water source in emergency, above 90% peripheral farmers were worried that it will affect the normal water taking for the Tianhe peripheral agricultural production to take water from the emergency water source in the water lacking period of the drought season.
• 95% people thought main adverse effects in the construction period were the transportation impeded and the land occupying.
• More than 90% of the people thought that the main function of the construction Tianhe pumping station was to enhance the Tianhe drainage pumping ability, to guarantee the safety of the Tianhe peripheral area in flood season, to promote agricultural production.
• No surveyors expressed adverse opinions in the location choice of the Tianhe pumping station.
2．For Longzi Lake project
• All the surveyors expressed their supports to the project construction. But they hoped that the drainage pumping station project should do rational planning before the construction, consider the expense and production of the project construction, use the fund reasonably, and cut down the expenditures.
• 75% of the surveyors reflected that the coastal area of the Longzi Lake drains water was impeded frequently in the flood season. They thought it is necessary to carry on scouring, coordinating to drainage pumping station construction simultaneously to improve the ability effectively of flood prevention and drainage pumping in this area.
• 60% of the surveyors thought it was extremely necessary to clear the silt in Longzi Lake, and it can improve the local overall environment to do coordinated coastal slope protection forestations.
• The surveyors all agreed that the main adverse effects in the project construction were the construction raising dust, the transportation impeding and the land occupying. It is hoped to decrease the influence by reducing construction time and realizing the construction environmental protection measures.
3．For urban water and drainage pumping project
• 92% of the surveyors reflected that Bengbu's drainage system was impeded, and it is needed urgently to consummate the municipal drainage system construction.
• 90% of the surveyors thought the construction of the draining water pipe network will be advantageous in improving the urban overall water environment.
• 98% people thought it is extremely helpful to construct rain and sewage pipe network in the Longzi Lake District for the improvement of the Longzi Lake and the peripheral water environment.
4．For Xijiagou Project
• 92% of the surveyors indicated that they support the construction of the project. They also thought that the scouring of the ditches and the new building of the drainage pumping station at the same time can effectively enhance the ability of the flood prevention and drainage pumping in local area;
• More than half of the surveyors expressed their great unsatisfaction with the peripheral environment of Xijiagou and Baligou. The main problems were the water environmental pollution caused by the sewage discharge, the odor caused by the trash in coast stacks, and the environmental sanitation problems.
• The surveyors all agreed that the main adverse effect in the project construction is the transportation and the land occupying. It is hoped to decrease the influence by reducing construction time and realizing the construction environmental protection measures.
5．For Huaishang District Project
• All the surveyors supported the project construction, and they thought it essential to improve the drainage system and enhance the ability of flood prevention and drainage pumping in Huaishang area. To build and consummate the infrastructures such as the road in the north area of Huaihe River main dike, the draining water pipe networks and so on;
• 92% of the surveyors reflected existing drainage pumping system was impeded in the Huaishang area. They also indicated that through scouring the silt in the ditches and canals, building new (changing, expanding) drainage pumping stations , reinforcing embankment and so on to enhance the ability of flood prevention and drainage pumping in Huaishang area;
• The surveyors thought that with the implementation of the project the main order of the impacts on their living were the noise; the raising dust, the temporary land occupying and the transportation, respectively. They hoped that in the construction the construction agency should pay attention to publicing the construction announcement in advance, constructing according to the plans, using environmental protection measures to dustproof, noise reduction, wastewater processing and so on, reducing the temporary land occupying, occupying less farmlands, shortening the project working period, restoring the surface vegetations promptly.
• The surveyors suggested that the project should occupy less farmland in caring about the people’s actually difficulty; the project should speed up the progress; in the pumping station construction the river system should be safeguarded to be unimpeded; Inhabitant's relocation and arrangement should be dealt with promptly. The project construction agency should pay attention to the surveyors’ suggestions, and help the project complete smoothly.
6．For Guzhen County Project
• 84% of the surveyors indicated the understanding of the project construction, 96% indicated their support to the project construction, and nobody expressed the opposition.
• 63% of the surveyors expressed their unsatisfaction with the existing drainage channel flow capacity of the Guzhen County. They thought that the environmental sanitation condition of the peripheral canal was poor at the central town in Guzhen County.
• 87% of the surveyors thought that the flooding disaster in Guzhen County was serious. 90% of the surveyors agreed that the flood discharging and drainage pumping ability of the existing drainage ditch pumping station was not able to meet the requirements for flood prevention and draining water pumping.
• The surveyors all agreed that the main adverse effects in the project construction will be the transportation impeding, the land occupying in the construction as well as the noise influence. It is hoped to decrease the influence by formulating the construction plan scientifically, reducing the construction time and realizing the construction environmental protection measures.
7．For Huaiyuan County Project
• Nearly all the surveyors expressed their supports positively to the project construction, and hoped that this project implements as soon as possible.
• The surveyors generally reflected that the ability of flood prevention and drainage pumping in Huaiyuan County was poor. They also suggested several measures to enhance comprehensively the ability of flood prevention and drainage pumping, such as building new drainage pumping station, doing silt scouring of drainage ditches, reinforcing embankment, etc.
• All the surveyors told that because various wastewaters were discharged and the trash was casually stacked, the peripheral environmental sanitation condition was extremely poor the suburban pools and drainage ditches in the Huaiyuan County Town. They indicated that it was extremely necessary to carry on comprehensive improvement, including silt clearing and vegetation restoration;
• The surveyor thought generally that the adverse effects during the project construction stage were mainly of temporary land occupying, construction noise and transportation consequences. They hoped to be informed ahead of time before the construction about the construction plan and the adverse effects. It is asked to decrease the influence by shortening the construction time, reducing the land occupancy and realizing the construction environmental protection measures at the construction place.
8．For Wuhe County Mohekou Project
• 95% of the surveyors indicated that they know the construction content and the situation of this project; and expressed their supports to the project construction.
• Regarding to the construction of the surface water works, the surveyors expressed cared about the supply water quality most, the guarantee of the water volume supply as well as the necessaries of the water supplying pipe network. They also indicated that they wish to use the water from the surface water works.
• 77% of the surveyors thought it was urgently needed to improve the water facilities, the sewage facilities, the road facilities in the industry development area;
• The surveyors thought that the impacts on their living with the implementation of the project will be the raising dust, the transportation, the noise and the temporary land occupying. It is hoped to decrease the influence by formulating the construction plan scientifically, reducing the construction time and realizing the construction environmental protection measures.
2. Feedback opinions and worries
According to the results of the EIA personnels’ visit on site as well as the survey of public participation to each sub-projects, the EIA agency will feed back the public opinion and worries collected to the departments concerned. The public opinions and the feedback results are shown in Table 143:
Table 144: Sheet of the public opinions and the feedback results
|Serial |Public opinions and the problems |Department for feedback |suggestions for handling |
|number |worried | | |
|1 |During the construction period, |Designing agency |Carry on multi-plan selection, reduce the land occupying|
| |reduce land occupying area, | |in the project; |
| |announce ahead of time, finish | | |
| |pollution preventing and | | |
| |controlling in the construction | | |
| |period | | |
| | |Project construction |choose the construction unit seriously, |
| | |agency |take the plan and the arrangement of temporary occupying|
| | | |land area in the construction as the evaluation target |
| | |Construction agency |formulate construction plan, make clear about the |
| | | |construction arrangement and the progress; complete the |
| | | |construction announcement before the construction |
| | | |admission |
| | |EIA agency |consummate the construction contamination control and |
| | | |the environmental protection measure |
|2． |Mohekou Town farmers hope to use |Planning department |Formulate the corresponding water supply plan |
| |water supplied by the surface | | |
| |water works | | |
| | |Wuhe County urban |construction of the necessary water supply pipe network |
| | |construction department |of the Mohekou Town |
| | | | |
| | |The association of pipe |connections for Mohekou Town water taking should be |
| | |network In Mohekou |reserved in water supplying main pipe |
| | |Garden zone | |
| | |designing agency |Based on the water consumption in the Mohekou Town, |
| | | |consider a convention on the scale of the surface water |
| | | |works and water resource with Huaihongxin River |
| | | |Xiangjian Lake. Guarantee the water supplying ability |
|3 |The public in Huaishang area |Construction unit |Do comparison and selection of multi- plans on the |
| |requested that the construction | |project contents and the selected location occupying |
| |agency care about people’s | |land area, take less occupying land area and non |
| |actually difficulty and the | |occupying of farmlands as the principle, demonstrate the|
| |project should occupy less | |project necessity fully |
| |farmland. | | |
| | |designing department |carries on the technical proof on the construction scale|
| | | |and the implementation plan |
| | | |to avoid waste in land resources and the construction |
| | | |funds |
| | |Construction unit |use advanced environmental protecting working practice,|
| | | |enhance job location management, control the |
| | | |construction temporary occupying land area strictly |
| |It is suggested that the river |the construction agency,|Formulate detailed construction plans, the construction |
| |system should be unimpeded in the |Designing department |technology methods required are included in the tender |
| |construction of the pumping | |content of the construction |
| |station. | | |
| | |the construction unit |Complete the adjustment of the temporary drainage system|
| | | |before the construction, Jamming of the original |
| | | |drainage channel is not permitted |
| |The inhabitant's relocation and |Construction unit |The construction unit executes the related national |
| |placement should be set in time | |policies strictly according to the relocation placement |
| |and well arranged. | |plans and the compensation standards. |
| | | |Make sure of the each expense of the placement and |
| | | |guarantee the prompt arriving of the compensation fund. |
| | |Local government |The local government does the surveillance and the |
| | | |coordination for the relocation and placement work. |
|4 |The public at Xijiagou and |the management |1. Carry on the necessary construction of the sewage |
| |Baligou, Guzhen County, the |association of the High-|truncation pipe network at the same time of silt |
| |location of the Huaiyuan County |and new- tech |clearing of the ditches and the ponds, control the |
| |project, requested to strengthen |development zone, each |sewage injection strictly. |
| |the management after the |construction agency in |2. Enhance environmental sanitation management, forbid |
| |completion of the silt-scouring of|the Guzhen County, and |piling trashes near the ditches and the ponds |
| |the drainage ditches and the |the Huaiyuan County, as |3. Construct necessary facility for trash receiving and |
| |ponds, in order to avoid the |well as |transportation, guarantee fixed point depositing of |
| |pollution of the trashes and the |the local urban |living trashes, do centralized collection and shipment. |
| |wastewater, and to protect the |management departments | |
| |social environment benefit of this| | |
| |construction project. | | |
3. Summary of the conditions of symposiums in the three counties
1. Huaiyuan County
The conference of “Huaiyuan County project of flood prevention and ecology treatment” was held at 9:00~10:30 in the morning on July 9, 2007 in the conference room of Huaiyuan County Development and Planning Commission. The conference was managed by Qin, the Director of the Development and Planning Commission. The representatives who attended the conference were 19 people in total, from the various areas of the construction located, mainly were the inhabitants in Chengguan Town community, farmers from Lizuizi village, Xinzhuangzi village, Meicheng village, Longtou Village, the inhabitants at the Bianhe Road, the staffs in the Chinese Medicine Hospital.
In the conference the project origin and its content were introduced first by the various projects construction units. Then the EIA agency analyzed and introduced the main environmental effects and the environmental protecting mitigation measures in the project construction period and the operation period. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 144.
Table 145: Sheet of the results summary of the symposium on the environmental impact of the Huaiyuan Project
|Main subjects |Main conclusions |Resolving proposals |
|What is the most unsatisfied aspect|1) The most unsatisfied aspect in the present |The opinions were feedbacked to the |
|in the present environment |environment situation for the inhabitants is the poor |construction agency as well as the |
|situation in the region involved in|ability of the city drainage pumping. For example, the |designing agency, and were considered in |
|the project? |Lizuizi drainage system was ponding so seriously in the|the design proposals. |
| |rainy season that it affected the ordinary living. | |
| |2) It is hoped to consummate the drainage system and | |
| |enhance flow capacity of the draining water pumping | |
| |station. The pumping station should be designed in two | |
| |ways as the self-pumping and the motor- pumping. | |
|2．What are the worries of the |1) The inhabitants thought that the transportation and |1) Feedback the public’s opinions to the |
|public about the adverse |the raising dust were the main problems worried about, |construction agency and request them check|
|environmental effects as well as |especially the problem of transportation. The reason is|strictly in the construction tender |
|influences on their own lives |that the pipe network consummation project was mainly |process and formulate the construction |
|brought in the construction stage |in the Chengguan Town where it was very easy to have |plan scientifically. |
|and the operation stage of the |the traffic jam with its narrow streets. |2) In the EIA report, do supplement and |
|project? |2) At the same time, the sandy soil was also very easy |consummate measures of the corresponding |
| |to influence the inhabitants living near both sides of |construction management and pollution |
| |the road in its transportation process. Therefore it |prevention and controlling in order to |
| |was suggested that the construction plan should be well|minimize the adverse construction |
| |formulated in the construction period. |consequences. |
| |3) Under the coordination of the transportation | |
| |management department, complete the work of traffic | |
| |control and the optimization of the transit route. | |
|3. What are the public’s opinions |1) The inhabitant believed that this project is a |1) Integrate completely the environmental |
|on the environmental impact |project for the people. They can accept various |protection measures proposed in EIA in the|
|mitigation measures in the project |unavoided environmental effects in the construction |environment management plan, and request |
|construction stage and the |period and hoped this project to implement as soon as |the project agency to implement the |
|operation stage? |possible. |investment fun for the environmental |
| |2) Regarding to the environmental mitigation measures |protection measures. |
| |in the construction period and the operation period, |2) In the selection of the construction |
| |the inhabitant representatives agreed with the measures|agency, it is suggested to take the |
| |proposed by the EIA agency. But it should be carried |realization ability of environmental |
| |out implement strictly especially by the construction |protection measures and the safeguard of |
| |agency, the supervising and managing agency and the |the technical fund as the key inspecting |
| |inspector agency according to the environment |targets. |
| |mitigation measures EIA agency proposed. | |
|4. What are public’s suggestions on|1）Regarding to the hygienic sanitation maintenance and|1) Feedback the public’s opinions to the |
|the environmental sanitation |management after the silt clearing of the ditches and |construction agency and the project local |
|maintenance and management after |the ponds, the public proposed to manage it first by |environmental sanitation department |
|the project’s completion, |the special person. At the same time to strengthen the |2) Urge the department concerned to |
|especially after silt clearing of |guidance of the environmental protection and raise the |consummate the construction of trash |
|the ditches and the ponds? |public understanding in environmental sanitation. |stacks and collection points in the |
| |2) Establish trash stacks and the collection points at |construction place. Collect and send out |
| |the inhabitant quarters around the drainage flow |in time the life trashes in that area of |
| |ditches and the ponds. The environmental sanitation |the ponds and drainage ditches, in order |
| |department cleans up and takes away at scheduled time. |to avoid pollution the second time. |
2. Guzhen County
The conference of “Guzhen County project of flood prevention and ecology treatment” was held at 3:00~4:30 in the afternoon on July 9, 2007 in the conference room of the Guzhen County Development and Planning Commission. The conference was managed by Wang, the Director of the Development and Planning Commission. The representatives who attended the conference were 26 people in total from the various areas of the construction located, mainly were the farmers from the nearby villages at Dalou Community at Guzhen such as Xiaolou Village, Dalou Village, Laojie, Qili Village, Nanchenwei Village, Qi Village, etc. as well as the concerned personnel in the Guzhen Construction Bureau and the Water Conservancy Bureau.
In the conference the project origin and its content were introduced first by the various projects construction units. Then the EIA agency analyzed and introduced the main environmental effects and the environmental protecting mitigation measures in the project construction period and the operation period. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 145.
Table 146: Sheet of the results summary of the conference on the environmental impact of the Guzhen County Project
|Main subjects |Main conclusions |Resolving proposals |
|1. For the public, what is the most|1) The most unsatisfied aspect in the present |The opinions were feedbacked to the |
|unsatisfied aspect in the present |environment situation for the inhabitants is the quite|construction agency as well as the |
|environment situation in the region|poor ability of the city drainage pumping. |designing agency. |
|involved in the project? |2) The city sewage collecting system was imperfect and| |
| |in the old city area the hygienic condition near the | |
| |drain was bad. | |
| |3) It is hoped to consummate the drainage system. | |
| |Clear silt in the city drains and ponds as soon as | |
| |possible to enhance water logging treatment. | |
|2．The public asked problems about |1) The inhabitants thought that the transportation, |1) Feedback the public’s opinions to the |
|worries of the adverse |the raising dust, and the environment sanitary, etc. |construction agency and request them check |
|environmental effects as well as |were the main problems worried about, in particular, |strictly in the construction tender process|
|influences on their own lives |the problem of transportation. Because in some suburb |and formulate the construction plan |
|produced in the project |villages transportation paths were not very good and |scientifically. In the construction |
|construction stage and the |the villagers had difficulty in transportation. The |proposal, consider reducing temporary land |
|operation stage. |villagers worried about the temporary occupying of the|occupying and stipulate the transit route |
| |road which will intensify this difficulty once the |for the construction, complete the work of |
| |project constructs creates. |supervising and managing. |
| |2) It is suggested to formulate the construction plan |2) In the EIA report, do supplement and |
| |in the construction period. The temporary access road |consummate measures of the corresponding |
| |should be constructed when constructing nearby the |construction management and pollution |
| |villagers’ channel in the suburb village. The path in |prevention and controlling in order to |
| |the village cannot be damaged. Do the traffic control |minimize the adverse construction |
| |and the optimization transit route. |consequences. |
|3. Ask the public’s opinions on the|1) The inhabitant believed that this project is a |1) Integrate completely the environmental |
|environmental impact mitigation |project for the people. They can accept various |protection measures proposed in EIA in the |
|measures in the project |unavoided environmental effects in the construction |environment management plan, and request |
|construction stage and the |period and hoped this project to implement as soon as |the project agency to implement the |
|operation stage. |possible. |investment fun for the environmental |
| |2) Regarding to the environmental mitigation measures |protection measures. |
| |in the construction period and the operation period, |2) In the selection of the construction |
| |the inhabitant representatives agreed with the |agency, it is suggested to take the |
| |measures proposed by the EIA agency. But it should be|realization ability of environmental |
| |carried out implement strictly especially by the |protection measures and the safeguard of |
| |construction agency, the supervising and managing |the technical fund as the key inspecting |
| |agency and the inspector agency according to the |targets. |
| |environment mitigation measures EIA agency proposed. | |
|4. What are public’s suggestions on|1）Regarding to the hygienic sanitation maintenance |1) Feedback the public’s opinions to the |
|the environmental sanitation |and management after the silt clearing of the ditches |construction agency and the project local |
|maintenance and management after |and the ponds, the public proposed to strengthen the |environmental sanitation department and |
|the project’s completion, |management first. At the same time the unit concerned |electricity supply department. |
|especially after silt clearing of |should provide the convenient condition for the |2) Urge the department concerned to |
|the ditches and the ponds? |neighbor inhabitant's trash collection so as to |consummate the construction of trash stacks|
| |protect the project achievement in clearing silt. |and collection points in the construction |
| |2) The public also proposed after completion of this |place. Collect and send out in time the |
| |project, the power supply department must guarantee |life trashes in that area of the ponds and |
| |each drainage station to drain water normally. Let the|drainage ditches, in order to avoid |
| |common people really see their actual benefit the |pollution the second time. |
| |project taken. |Ask the construction agency and the water |
| | |conservancy department to enhance the |
| | |operational management of the pumping |
| | |stations and guarantee the normal operation|
| | |of the drainage pumping stations. |
3. Mohekou Town of Wuhe County
The symposium of “Wuhe County project of flood prevention and ecology treatment” was held at 9:30 ~ 11:00 on the morning of July 6, 2007 at the conference room of the Mohekou Industry Garden Management Commission. The representatives who attended the conference were 24 people in total from the villages of the construction located, from Mohekou Village, Tuanjie Village, Sanpu Village, Tangchen Village, Lijiawa Village, Yuanji Village, respectively.
In the conference the project origin and its content were introduced first by the projects construction agencies. Then the EIA agency introduced the environmental impact production stages (waste water, waste gas, solid waste, and noise), the pollutant emissions analysis, and the planned environmental protection measures and so on in the project construction period and the operation period, enabling the public to have a more comprehensive understanding to the project’s environmental consequences. Finally the public representatives, the construction agency and the EIA agency made discussion and the opinion requiring on the main subjects. The public in the construction location expressed their opinions and the ideas. The main subject and the public opinion of the conference are summarized in Table 146.
Table 147: Sheet of the results summary of the conference on the environmental impact of the Mohekou Project in the Wuhe County
|Main subjects |Main conclusions |Resolving proposals |
|1. What are the suggestions |1) The garden area is in the marsh land, so |.1) The opinions were feedbacked to the |
|and opinions of the public in |it should be solved for the problem of the |construction agency as well as the designing |
|the project construction? |draining water peripheral land which has not |agency. In the design proposal and the draining|
| |taken over for use, to avoid the agricultural|water plan, to consider the marsh land draining|
| |loss impeded drains in the flood season. |water problem in garden area, as well as moving|
| |2) The location selection of the sewage |direction of the water works feedwater line and|
| |factory should be reasonable to, guarantee |its construction plan. To provide the tap water|
| |the inhabited area not to be affected by the |with safety control for the local common people|
| |odor. |eat the greatest possibility. |
| |3) The public reflected that the source of |2) The odor problem of the sewage factory has |
| |drinking water for peripheral inhabitant in |been reflected to the designing department and |
| |the place of construction is the ground water|the construction unit., Consider thoroughly in |
| |at present, in which the iron content is high|reducing the odor influence in the factory site|
| |concerning the water quality. After the |selection and the factory layout as well as the|
| |surface water works complete, the inhabitants|sludge processing. Enhance the protective |
| |are willing to pay the suitable fee to use |measures. |
| |the tap water. |3) In the EIA report it was proposed to the |
| |4) The conference participants thought that |health protection distance request and |
| |the project construction was extremely |reasonable suggestion for the layout of the |
| |important. They requested to implement the |factory district. |
| |project as soon as possible and guarantee the| |
| |project quality and the completion time, in | |
| |order to benefit the local people earlier. | |
|2．The public asked problems |1) The construction sewage processing should |1) Feedback the public’s opinions to the |
|about worries of the adverse |be paid attention to during the project |construction agency and request them check |
|environmental effects as well |construction period, in order to avoid the |strictly in the construction tender process and|
|as influences on their own |polluting the peripheral water environment. |formulate the construction plan scientifically.|
|lives produced in the |2) The inhabitants thought that the |In the construction proposal, should consider |
|construction stage and the |transportation and the raising dust and so on|reducing temporary land occupying and stipulate|
|operation stage of the |were the main problems they worried about. |the transit route for the construction, |
|project. |Especially during the road building at the |complete the work of supervising and managing. |
| |Mohekou Town, the sand and crushed stone |2) In the EIA report, do supplement and |
| |materials and so on needed for the road |consummate measures of the corresponding |
| |construction should be laid aside |construction management in order to minimize |
| |appropriately to reduce the road occupying |the adverse construction consequences. |
| |and maintain the road cleanness. The | |
| |construction time should avoid inhabitant's | |
| |relaxation time. Do the construction in the | |
| |civilized way and formulate the construction | |
| |plan to reduce the effects on the | |
| |inhabitants’ transportation and lives. | |
| |3) After the implementation of the project, | |
| |it is hoped to do effective collection and | |
| |processing for the existing factory | |
| |production waste water and the sewage in the | |
| |town and to integrate completely the sewage | |
| |treatment plant to be constructed. | |
|3. Ask the public’s opinions |1) The inhabitant believed that this project |1) Integrate completely the environmental |
|on the environmental impact |is a project for the people. They can accept |protection measures proposed in EIA in the |
|mitigation measures in the |various unavoided environmental effects in |environment management plan, and request the |
|project construction. |the construction period and hoped this |project agency to implement the environmental |
| |project to implement as soon as possible. But|protection measures and the supervising and |
| |the environmental mitigation measures should |managing system. |
| |be implemented actually. |2) It should be enhanced in the scene |
| | |management in the construction period and |
| | |increased in surveillance and inspection |
| | |strength. |
4. The experts’ consultation opinions
In view of “the Project of City flood prevention and the ecological environment treatment in Bengbu City”, to complete the project EIA work better, the EIA consulted the seven concerning experts coming from the Bengbu water conservancy bureau, Huaihe River Hydro-Conservancy Committee, the Bengbu Water Conservation Survey Design Institute, the Bengbu Plan and Design Institute, the Huaihe River Water Resources Conservation Research Institute, the Bengbu Municipal Engineering Administrative Office and the Bengbu Environmental Monitoring Station in the Bengbu City in July, 2007. The experts proposed the precious suggestion on the following questions. The content and the expert advice of the questionnaire were summarized in Table 147.
Table 148: List of the summary of experts’ opinions on Bengbu World Bank loan project
|Serial |The questionnaire |Main conclusions |
|number | | |
|1 |What’s your attitude to|Expert in various fields expressed their vigorous supports to the construction of the World Bank |
| |the construction of |project. |
| |this project seeking |1) Bengbu is a city with relatively lag infrastructure and relatively serious pollution. The local |
| |for World bank loan for|flood prevention facility was weak in this area, which is to the north of Huaihe River, to the east |
| |the city flood |of Longzi Lake and to the west of Baligou. It has been in the status of natural inundation for a |
| |prevention and |long time and there existed certain hidden danger of flood prevention. On the other hand, the |
| |ecological treatment in|Baligou, the Xijiagou and the Longzi Lake have not been treated comprehensively and the water |
| |Bengbu City? |environmental pollution problem is quite serious. Therefore it is extremely essential to apply for |
| | |the World Bank loan to carry on the construction of the city flood prevention and the drainage |
| | |pumping facility and the environment synthesis improvement. |
| | |2) Bengbu's once application for the world bank loan to use in the Huaihe River basin water |
| | |pollution treatment, has obtained very good social and environmental benefit. This time the |
| | |application for the world bank loan project will play a vital role in realizing the sustainable |
| | |development of the economy and the society so as to raise the city infrastructure level and optimize|
| | |the living environment. It is believed that with the great effort of municipal government and |
| | |department concerned, the application for the world bank loan will obtain a complete success. |
|2 |What’s your worry and |1) There are water drainage problems such as low topography of garden area and submergence risks in |
| |suggestion on the |the flood season. It is suggested to carry on plan designing and the implementation first in the |
| |construction of the |Mohekou garden area of drainage elimination. |
| |Mohekou Industry |2) There are pollution discharge problems in the enterprises. The pretreatment does not reach the |
| |Garden? |designed standards and is discharged outside along with rain water in the flood season. It is easy |
| | |to form the pollution risk to Huaihe River. It should be guaranteed that the enterprise |
| | |environmental protection facility, the sewage treatment facility in the garden area and the |
| | |enterprise construction are in operation simultaneously. At the same time, forbid the heavy |
| | |pollution enterprise entering the garden area. |
| | |3) As a fine chemical garden area, the ingredients of the sewage and wastewater in the enterprise |
| | |are complex and heavily polluted. It should be carried on the technical proof to the treating |
| | |process in the wastewater treatment plant and adopt suitable limiting condition for the chemical |
| | |enterprises with characteristic pollutants, therefore to guarantee the enterprise wastewater reach |
| | |the pretreatment standards before being discharged into the wastewater treatment plant. It should be|
| | |discussed about the technology proposals on the pollution outlet establishment of the wastewater |
| | |treatment plant and considered about the sludge handling in normal operation of the sewage plan at |
| | |the same time. |
| | |4) There are domestic water problems. As the ground water quality is unsatisfactory and the surface |
| | |water resources are scarce, there are problems in the water quality and volume of water supply. The |
| | |water resources proof and comparison and selection of the water supply plan to the surface water |
| | |works should be carried out. Carry on the full proof on the project technology. The domestic water |
| | |may consider the proposal using in-depth ground water. |
|3 |To display the |1) Plan reasonably the rain and sewage pipe networks. It should be considered for the long-term |
| |environment benefit of |development requirement for sewage pipe network and designed carefully. Control the construction of |
| |the city rain and |the storm sewer system strictly and makes the connection well as few as possible. Construction the |
| |sewage pipe networks of|waste blocks facility at the exit to cease the organic waste matters to enter the river course which|
| |the basic construction,|causes second pollution. |
| |what problem do you |2) In the new city area, the rain and the sewage separate system pipe network should be built. In |
| |think need be paid |the old city area where there is unable to practice the separate system, the multiple should be |
| |attention to? What’s |reasonably determined in damming the current during the pipe network construction of combined |
| |your suggestion? |system. |
| | |3) Guarantee the pipe maintenance quality after raining. Complete the lucid and coherent work before|
| | |the flood season. The sewage pipe network construction should be earlier than the sewage treatment |
| | |plant construction. The covering scope and the volume of contaminated wastewater of the wastewater |
| | |gathering system should satisfy the wastewater treatment scale requirements, avoiding unsaturated |
| | |inlet water in the wastewater plant. |
| | |4) Establish and perfect the enterprise water draining and the pollution discharge permit system. |
| | |Complete the later period track supervising and managing normalizing. Guarantee the inlet water of |
| | |the wastewater plant to meet water quality standards and in good operation. |
|4 |Which aspects do you |Benefits: |
| |think that main |1) enhance the ability of accepting the rain and sewage in the ditches, the ponds and the rivers and|
| |environment benefits |improve the self-cleaning ability; 2) improve water quality of the ditches, the ponds and the rivers|
| |are shown in for the |as well as the peripheral soil quality, therefore improve peripheral living environment; 3) increase|
| |silt clearing projects |the ability of draining and storing floodwater in the ditches, the ponds |
| |of ditches and ponds in|Problems existed: |
| |the city area and three|λ |
| |counties? What problems|1) handling of clearing silt which may cause second pollution; 2) certain pollution produced in the |
| |do the silt clearing |construction process; 3) investment of a large amount |
| |projects have? Do you |Suggestions: |
| |have any suggestions? |1) There are problems in Bengbu and three counties projects, such as the big resilience of the |
| | |ditches and the ponds silt clearing, the insufficient investment. Therefore it should be done with |
| | |key prominent, for example, south area of Longzi Lake needs immediate silt clearing. It is suggested|
| | |to implement by stages, complete silts clearing at one time. |
| | |2) It is suggested to transform the earth channels into the stone channels to retain the existing |
| | |marsh lands as far as possible, and do overall planning and comprehensive treatment. To marsh lands |
| | |in the city which is the place originally for flood stagnating and gathering, should be retained as |
| | |far as possible to avoid filling in the pond to make the lands. |
| | |3) The silt clearing project should be unified with the environment improvement of the water body |
| | |shore and the pollution source treatment. |
| | |4) The silts cleared should be deeply buried or covered with the earth as well as used in the |
| | |forestations or the scenery making. |
| | |5) The handling plan for the cleared silts should be compared and selected with the multi-plans, for|
| | |example to fill in buries, the compost, burning down and so on, to avoid producing second pollution.|
|5 |What do you think of |1) Longzi Lake area is very big. Therefore the key scope of silt clearing should be determined |
| |the main problems there|first. Then carry on surveys on silt thickness in the silt clearing scope. Decide the silt depth of|
| |are in the silt |clearing on the basis of the analysis of pollutant content distributions in the silt. |
| |clearing project of |2) The silt clear will have certain influence on the water quality, the water ecology, the |
| |Longzi Lake? |aquaculture, the landscape. Reduce destruction of the original ecology as far as possible. Determine|
| | |the silt clearing depth after the scientific analysis. It is suggested that the silt clearing cannot|
| | |penetrate the clay layer and t the silt clearing depth should not more than 50cm. |
| | |3) Choose the appropriate way to clear silts. Avoid the deposit pollutant in the bottom putty |
| | |releasing once more into the water body and causing the new pollution during the silt clearing |
| | |process because of the bottom putty agitation. Consider the efficiency of the silt clearing at the |
| | |same time. It is suggested to use the dredge boat of environment protecting twist-attract type. If |
| | |the silt depth is insufficient, it is suggested to pump off the water and use the sludge pump or the|
| | |carry-scraper for the construction work regarding to the soil texture situation. |
| | |4) For the improvement of the Longzi Lake shore, it is primarily suggested to excavate the earth or |
| | |stone, therefore to increase the storage capacity of the flood prevention, storage and regulating |
| | |and to enhance the flood control standard of the Longzi Lake. |
| | |5) The cleared silts should be handled reasonably. It is suggested to use the soil body in the |
| | |cleared silts to increase the ground elevation of peripheral Longzi Lake to achieve the effect of |
| | |flood prevention and waterlogged elimination. But the stack of the cleared silt must not occupy the |
| | |storage capacity for flood preventing and regulating. |
| | |6) The handling of massive cleared silts should choose the appropriate season, to avoid doing |
| | |construction in the spring or summer and reduce the influence of odor. It is suggested to choose the|
| | |suitable place to construct putty field for silt handling. |
| | |7) After clearing the silts, enhance the operation management and the maintenance of the Longzi |
| | |Lake. The sewage dispersing is forbidden along the lake. It is also suggested to consider breeding |
| | |some aquatic plants to absorb nutritive elements such as nitrogen, phosphorus and so on while richen|
| | |the landscape. It is proposed to do massive forestations of planting trees and grasses along the |
| | |coast to reduce the soil erosion and the silt situation in the lake body. |
|6 |What main problems do |Existed problems: |
| |you think existed in |1) In the old city area the equipment in the drainage pumping stations are obsolete, while in the |
| |the construction of |new city area the drainage pumping stations need to be constructed urgently; 2) The draining ability|
| |drainage pumping |of the planned pumping station is not able to meet the design requirements; 3) After the pumping |
| |stations? Which |station completes, the maintenance management mechanism is not perfect and the technical ability is |
| |opinions Do you have |insufficient. |
| |any opinions or |Opinions and suggestions |
| |suggestion? |Location selection of the pumping stations should consider the conditions such as advantageous |
| | |drainage collection, good geological condition, high safeguarded electricity conditions as well as |
| | |transportation convenience. Simultaneously far away from the crowd compact district. |
| | |2) Enhance the pumping station forestations construction. Use the pumps of advanced designing, the |
| | |high effective and energy saving, the safe and reliable type. Increase the sound absorption function|
| | |of the pumping station. Complete the pollution preventing and controlling measure of the odor and |
| | |the noise, avoiding disturbing the people. |
| | |3) Prudently choose the waste blocking facility and the waste blocking plan, Pay enough attention to|
| | |the anticorrosion of the pumping station equipments. |
| | |4) The construction of drainage pumping stations is supposed to pay great attention to the display |
| | |of combined benefits of the hydraulic engineering, which is to combine basin drains and the regional|
| | |drains, and the realize the combination of the drainage pumping function and the environment |
| | |benefit. |
| | |5) Strengthen the operation management of the pumping station. Consummate the management facility |
| | |and the management structure. Strengthen the routine maintenance of the equipment. Provide the |
| | |corresponding technical force. Realize good operation of the pumping station. |
|7 |Question 7, What are |Influences: |
| |effects on original |1) The construction the Tianhe drainage pumping station can expand drainage flux. During the water |
| |Fengxi pumping station,|logging time can reduce the Tianhe water level effectively. It is advantageous for Fengxixu drainage|
| |Fengxixu, the |pumping station to eliminate water logging and enhance the flood controlling standard of Fengxixu; |
| |Tianheshengchan dike, |2) In the flood season, the function of the opening of drainage pumping station can be ignored in |
| |Tianhefengbi dike and |increasing the Huaihe River main current capacity. It will not result in the increase of the water |
| |the flood discharging |level of the Huaihe River, therefore it almost will not affect to the Tianheshengchan dike, the |
| |areas after completing |Tianhefengbi dike. |
| |the Tianhe drainage | |
| |Pumping station? |Worries and suggestions: |
| |Are there any worries |1) When the drainage stations begin simultaneously, the influence on the peripheral water level |
| |or suggestions? |should be considered. |
| | |2) The operating costs have difficulties in the allocation. It is supposed to be considered by the |
| | |province government. |
| | |3) For the Tianhe has been taken as the Bengbu spare water source, reducing the Tianhe water level |
| | |will have influence on the water-holding capacity. |
|8 | |Positive influence: |
| |What influence do you |1) There are many advantages in the wide range society public welfare. On the one hand. It is |
| |think the project |advantageous to protect the land and the inhabitant safety; on the other hand it is also |
| |construction will have |advantageous in removing the drainage from Huaihe River ahead of time. |
| |on Huaihe River? Do you|2) It has the improvement and the repairing function to the regional partial ecology. It can improve|
| |have any suggestions? |the environment along the Huaihe River. The construction of the wastewater treatment plant may |
| | |reduce the pollution degree in Bengbu pollutants discharging to Huaihe River. |
| | |3) It has the vital role in the guarantee of water quality water and water volume of Bengbu domestic|
| | |water and the process water. |
| | |Negative influence: |
| | |1) It will produce short disadvantageous environmental effects such as sewage and wastewater and so |
| | |on. in the construction period |
| | |2) It will have adverse effects on the water quality in Huaihe River if sewage discharges in the |
| | |enterprise along Huai Garden Area is not controlled strictly. |
| | |3) The cleared silt from the ditches and ponds will produce the negative influence on the |
| | |surrounding environment with inappropriate handling ; |
| | |4) After completion of drainage pumping stations construction in the urban district and three |
| | |counties, the operation of single pumping station will not have great influence on the main current |
| | |of Huaihe River. But if the stations simultaneously open in the flood season, it can slightly |
| | |increase the Huaihe River peak discharge, which possibly will be able to have the influence on the |
| | |overall Huaihe River flood prevention and create the flood disaster to shift. |
| | |Suggestions: |
| | |1) Carry out the environmental protection measures strictly “three at the same time” way, strengthen|
| | |the pollution outlet management, cease pollution event to occur in the Huaihe River. |
| | |2) Strengthen and carry out each environmental protection measure in the construction period. reduce|
| | |the environment adverse effects. |
| | |3) Control the construction quality strictly. Cease the hidden danger of the flood prevention |
| | |4) Implement this project as soon as possible. Carry on the project with the principle of the urban |
| | |district first, then three counties, the main current first, then the branches, paying equal |
| | |attention to pipe network transformation in the old city area and pipe network construction in the |
| | |new town area. |
| | |5) Coordinate various departments and reasonably plan the working procedure and the scale of the |
| | |city draining water pipe network and the drainage pumping station construction. |
| | |Once there is a possibility to have influence on the bank of Huaihe River, appraisal must be carried|
| | |on for the circle dike flood prevention. |
The EIA agency carried on public participation surveys at various stages in the EIA of the Bengbu World Bank Loan Project. The main conclusion and the achievement are shown in Table 148.
Table 149: Summary of the public participation survey in the EIA of the Bengbu World Bank Loan Project
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |YUHUI |Visit on site and|EIA agency, |Yuhui District|The public |
|PARTICIPANT | |DISTRICT、CHANGQINXIA|distribute the | | |investigated support|
| | |NG, |survey table for |Bengbu water | |the construction of |
| | |Qinji Town |public |convservancy Bureau| |the project |
| | | |participation | | | |
|2nd public |2007．7 |Qinji Town Fengcheng|Visit on site and| |Qinji Town |The public |
|participant | |village, |distribute the | | |investigated support|
| | |Qiancheng Village |survey table for | | |the |
| | |Huacheng village |public | | |construction of the |
| | | |participation | | |project. The |
| | | | | | |surveyors think that|
| | | | | | |drainage condition |
| | | | | | |was serious. The |
| | | | | | |construction of |
| | | | | | |large-scale drainage|
| | | | | | |pumping station is |
| | | | | | |extremely needed; |
| | | | | | |The public worried |
| | | | | | |about water taking |
| | | | | | |from the Tianhe will|
| | | | | | |have influence on |
| | | | | | |agricultural |
| | | | | | |production water in |
| | | | | | |the drought season. |
| | | | | | |The main adverse |
| | | | | | |effects in the |
| | | | | | |construction period |
| | | | | | |were the |
| | | | | | |transportation and |
| | | | | | |the land occupying. |
| |2007．7 |Send out requiring |Asking for |City PMO |Wang zhenlong,|The experts strongly|
| | |letters |experts | |Tian zhongzhi |support the |
| | | |suggestions | |Yang linhai, |project |
| | | | | |Liu Chao, |construction. |
| | | | | |Huang Kang, |The pumping station |
| | | | | |Jin Yanchun |should be far |
| | | | | |Zhao Yuangang |away from the crowd |
| | | | | | |compact district and|
| | | | | | |food for the |
| | | | | | |drainage gathering. |
| | | | | | |Complete the |
| | | | | | |pollution prevention|
| | | | | | |and treatment |
| | | | | | |measures of the odor|
| | | | | | |and the noise. |
| | | | | | |Prudently choose the|
| | | | | | |waste blocking |
| | | | | | |facility and the |
| | | | | | |waste blocking plan |
| | | | | | |The Tianhe pumping |
| | | | | | |station will |
| | | | | | |decrease the water |
| | | | | | |level of the Tianhe |
| | | | | | |River. The function |
| | | | | | |on the main current |
| | | | | | |of Huaihe River can |
| | | | | | |be ignored when it |
| | | | | | |opens in the flood |
| | | | | | |season. |
| | | | | | |5. But if the |
| | | | | | |stations along the |
| | | | | | |Tianhe River |
| | | | | | |simultaneously open,|
| | | | | | |the influence on the|
| | | | | | |water level should |
| | | | | | |be considered. |
|ature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |VILLAGES ALONG LONGZI |VISIT ON SITE AND|EIA AGENCY, |villages along|All the surveyors supports|
|PARTICIPANT | |LAKE |DISTRIBUTE THE |Economic |the Longzi |the project , support the|
| | | |SURVEY TABLE FOR |development |Lake |silt clearing in Longzi |
| | | |PUBLIC |district | |Lake and the drainage |
| | | |PARTICIPATION | | |pumping station |
| | | | | | |construction |
|2nd public |2007．7 |Villages along Longzi |Visit on site and| |villages along|All the surveyors support |
|participant | |lake |distribute the | |the Longzi |the project. 60% of |
| | |（ShannanVillage、Qiuqiao |survey table for | |Lake |the surveyors thought it |
| | |Village、Jiguo |public | | |was extremely necessary to|
| | |Village、Junli |participation | | |clear the silt in Longzi |
| | |Village、Dalu Village, | | | |Lake |
| | |etc.） | | | |The main adverse effects |
| | | | | | |in the project |
| | | | | | |construction were the |
| | | | | | |construction raising dust,|
| | | | | | |the transportation |
| | | | | | |impeding and the land |
| | | | | | |occupying. The public |
| | | | | | |hoped to decrease the |
| | | | | | |influence by reducing |
| | | | | | |construction time and |
| | | | | | |realizing the construction|
| | | | | | |environmental protection |
| | | | | | |measures. |
| |2007．7 |Send out requiring letters|Asking for |City PMO |Wang zhenlong,|The experts strongly |
| | | |experts | |Tian zhongzhi |support the project |
| | | |suggestions | |Yang linhai, |construction |
| | | | | |Liu Chao, |The investment is large. |
| | | | | |Huang kang, |It is suggested to |
| | | | | |Jin Yanchun |implement in stages, and |
| | | | | |Zhao Yuangang |do it once. |
| | | | | | |Decide the silt depth of |
| | | | | | |clearing according to |
| | | | | | |the monitoring result. The|
| | | | | | |silt clearing depth should|
| | | | | | |not more than 50cm. Select|
| | | | | | |the appropriate silt |
| | | | | | |clearing measure according|
| | | | | | |to the soil nature. |
| | | | | | |The cleared silts should |
| | | | | | |be handled reasonably. |
| | | | | | |It is suggested to use the|
| | | | | | |soil body to increase the |
| | | | | | |ground elevation of |
| | | | | | |peripheral Longzi Lake. |
| | | | | | |The handling of cleared |
| | | | | | |silts should choose the |
| | | | | | |appropriate season and |
| | | | | | |avoid construction the |
| | | | | | |spring or summer to reduce|
| | | | | | |the influence of odor. |
| | | | | | |Enhance the operation |
| | | | | | |management and the |
| | | | | | |wastewater discharge is |
| | | | | | |forbidden along the lake. |
|ature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |OLD CITY AREA |Visit on site and| |Old city area, |The surveyors generally |
|PARTICIPANT | |High and new tech.|distribute the |EIA agency, |High and new tech.|support the urban water |
| | |area |survey table for |Bengbu |area |and drainage pumping |
| | | |public |construction | |project, support the |
| | | |participation |commission, | |municipal drainage system|
| | | | |High and new tech.| |construction |
| | | | |area , | | |
| | | | |Economic | | |
| | | | |development area, | | |
| | | | | | | |
|2nd public |2007．7 |Old city area, |Visit on site and| |Old city area, |The surveyors support the|
|participant | |Economic |distribute the | |Economic | |
| | |development area, |survey table for | |development area, |project. They think it is|
| | |High and new tech.|public | |High and new tech.|needed urgently to |
| | |area |participation | |area |consummate the municipal |
| | | | | | |drainage system |
| | | | | | |construction |
| | | | | | |The public think to |
| | | | | | |construct |
| | | | | | |rain and sewage pipe |
| | | | | | |network in the Longzi |
| | | | | | |Lake District is good for|
| | | | | | |the improvement of the |
| | | | | | |Longzi Lake water |
| | | | | | |environment. |
| |2007．7 |Send out requiring|Asking for |City PMO |Wang zhenlong, |The experts strongly |
| | |letters |experts | |Tian zhongzhi |support |
| | | |suggestions | |Yang linhai, |the project construction |
| | | | | |Liu Chao, |Plan reasonably the rain |
| | | | | |Huang kang, |and |
| | | | | |Jin Yanchun |sewage pipe networks. In |
| | | | | |Zhao Yuangang |the new city area, the |
| | | | | | |rain and the sewage |
| | | | | | |should flow separately. |
| | | | | | |Guarantee the pipe |
| | | | | | |maintenance quality after|
| | | | | | |raining. The sewage pipe |
| | | | | | |network construction |
| | | | | | |should be earlier than |
| | | | | | |the sewage treatment |
| | | | | | |plant construction. |
| | | | | | |Pay equal attention to |
| | | | | | |the |
| | | | | | |network rebuilding in the|
| | | | | | |old city area and pipe |
| | | | | | |network constructing in |
| | | | | | |the new city area. |
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |HIGH AND NEW |Visit on site and| |High and new |The public surveyors |
|PARTICIPANT | |TECH. AREA , |distribute the |EIA agency, |tech. area |generally support the |
| | | |survey table for | | |construction of the |
| | | |public |High and new | |construction of |
| | | |participation |tech. area | |Xijiagou, Baligou and |
| | | | | | |the embankment. |
|2nd public |2007．7 |High and new |Visit on site and| |High and new |The public surveyors |
|participant | |tech. area , |distribute the | |tech. area |generally support the |
| | | |survey table for | | |project. |
| | | |public | | |2 The public is very |
| | | |participation | | |unsatisfied with the |
| | | | | | |peripheral environment |
| | | | | | |of Xijiagou and Baligou.|
| | | | | | |3 the main effect in the|
| | | | | | |construction is the |
| | | | | | |transportation and the |
| | | | | | |land occupying. |
| |2007．7 |Send out |Asking for |City PMO |Wang zhenlong, |The experts strongly |
| | |requiring |experts | |Tian zhongzhi |support |
| | |letters |suggestions | |Yang linhai, |the project construction|
| | | | | |Liu Chao, |The sludge should be |
| | | | | |Huang kang, |treated |
| | | | | |Jin Yanchun |reasonably with filling |
| | | | | |Zhao Yuangang |in buries or in |
| | | | | | |forestation to make |
| | | | | | |scenery. |
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |HUAISHANG AREA |VISIT ON SITE AND| |Huaishang |The public surveyed |
|PARTICIPANT | |XIAOBENGBU |DISTRIBUTE THE |EIA agency |District |support the project |
| | |VILLAGE, |SURVEY TABLE FOR | | |construction. |
| | |SHUANGDUN |PUBLIC |Huaishang | | |
| | |VILLAGE, WUAN |PARTICIPATION |District | | |
| | |VILLAGE, JINTAI | |government | | |
| | |VILLAGE, CHENTAI | |PMO | | |
| | |VILLAGE | | | | |
|2nd public |2007．7 |Huaishang area |Visit on site and| | |The public surveyed |
|participant | |Xiaobengbu |distribute the | |Huaishang area |support |
| | |Village, |survey table for | |Xiaobengbu |the project construction. |
| | |Shuangdun |public | |Village, |and think it is essential |
| | |Village, Wuan |participation | |Shuangdun |to build and consummate |
| | |Village, Jintai | | |Village, Wuan |the infrastructures |
| | |village, Chentai | | |Village, Jintai |The public proposed that |
| | |Village | | |village, Chentai |the |
| | | | | |Village |project should care about|
| | | | | | |the people’s actually |
| | | | | | |difficulty and occupy |
| | | | | | |less farmland |
| | | | | | |Impacts of the |
| | | | | | |construction |
| | | | | | |were the noise; the |
| | | | | | |raising dust, the |
| | | | | | |temporary land occupying |
| | | | | | |and the transportation, |
| | | | | | |respectively. |
| |2007．7 |Send out |Asking for |City PMO |Wang zhenlong, |The experts strongly |
| | |requiring letters|experts | |Tian zhongzhi |support |
| | | |suggestions | |Yang linhai, |the project construction |
| | | | | |Liu Chao, |The silt cleared should be|
| | | | | |Huang kang, | |
| | | | | |Jin Yanchun |handled reasonably. |
| | | | | |Zhao Yuangang |The pumping station should|
| | | | | | | |
| | | | | | |complete the prevention |
| | | | | | |and treatment measures of |
| | | | | | |the odor and the noise. |
| | | | | | |Implement the |
| | | | | | |environmental protection |
| | | | | | |measures of “three at the |
| | | | | | |same time” |
| | | | | | |The evaluation of the |
| | | | | | |flood |
| | | | | | |prevention of the circle |
| | | | | | |bank must be done. |
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．4 |GUZHEN CHENGGUAN |VISIT ON SITE AND| |Guzhen Chengguan |The public surveyed |
|PARTICIPANT | |VILLAGE |DISTRIBUTE THE |EIA Agency |Village |support the project |
| | | |SURVEY TABLE FOR | | |construction. |
| | | |PUBLIC |Guzhen county PMO | | |
| | | |PARTICIPATION | | | |
|2nd public |2007．4 |Guzhen Chengguan |Visit on site and| |Guzhen Chengguan |The public surveyed |
|participant | |Village |distribute the | |Village |support the project |
| | | |survey table for | | |construction. |
| | | |public | | |The public think the |
| | | |participation | | |peripheral |
| | | | | | |environmental |
| | | | | | |sanitation condition |
| | | | | | |was poor and needs silt|
| | | | | | |clearing; the flooding |
| | | | | | |disaster in was serious|
| | | | | | |and they need the |
| | | | | | |construction of the |
| | | | | | |drainage pumping |
| | | | | | |station. |
| |2007．7 |Send out |Asking for |City PMO |Wang zhenlong, |The experts strongly |
| | |requiring letters|experts | |Tian zhongzhi |support the project |
| | | |suggestions | |Yang linhai, |construction |
| | | | | |Liu Chao, |The silt cleared should|
| | | | | |Huang kang, |be handled |
| | | | | |Jin Yanchun |reasonably. |
| | | | | |Zhao Yuangang |The pumping station |
| | | | | | |should be good |
| | | | | | |for the drainage |
| | | | | | |gathering and far away |
| | | | | | |from the crowd compact |
| | | | | | |district. |
| | | | | | |Prudently choose the |
| | | | | | |waste blocking |
| | | | | | |facility and the waste |
| | | | | | |blocking plan. The |
| | | | | | |pumping station |
| | | | | | |completes the pollution|
| | | | | | |prevention and |
| | | | | | |treatment measures of |
| | | | | | |the odor and the noise.|
| | | | | | | |
| | | | | | |Carry on the project |
| | | | | | |with the principle |
| | | | | | |of the urban district |
| | | | | | |first, then three |
| | | | | | |counties, the main |
| | | | | | |current first, then the|
| | | | | | |branches, paying equal |
| | | | | | |attention to pipe |
| | | | | | |network transformation |
| | | | | | |in the old city area |
| | | | | | |and pipe network |
| | | | | | |construction in the new|
| | | | | | |town area. |
| |2007.7.9 |The conference |The public |the Guzhen County |Villagers from |hope to consummate the |
| | |room of Guzhen |negotiation |Development and |Dalou Community at|drainage |
| | |County Government|symposium |Planning |Guzhen such as |system, Clear the silts|
| | | | |Commission, |Xiaolou Village, |in the draining |
| | | | | |Dalou Village, |ditched\s and ponds as |
| | | | |PMO leader group, |Laojie, Qili |soon as possible to |
| | | | | |Village, |enhance draining water |
| | | | |EIA agency |Nanchenwei |treatment |
| | | | | |Village, Qi |The temporary access |
| | | | | |Village, etc. as |road should be |
| | | | | |well as the |constructed. The path |
| | | | | |concerned |in the village cannot |
| | | | | |personnel in the |be damaged. |
| | | | | |Guzhen |implement strictly the |
| | | | | |Construction |environment |
| | | | | |Bureau and the |mitigation measures |
| | | | | |Water Conservancy |The power supply |
| | | | | |Bureau |department must |
| | | | | | |guarantee normal |
| | | | | | |operation of the |
| | | | | | |drainage station. |
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |HUAIYUAN COUNTY |VISIT ON SITE AND|HUAIYUAN COUNTY |Huaiyuan County |the public surveyed |
|PARTICIPANT | |CHENGGUAN TOWN |DISTRIBUTE THE |PMO LEADING GROUP,|Chengguan Town |support the project |
| | | |SURVEY TABLE FOR | | |construction, |
| | | |PUBLIC |EIA agency | | |
| | | |PARTICIPATION | | | |
|2nd public |2007．7 |Huaiyuan County |Visit on site and| |Huaiyuan County |The surveyors supported |
|participant | |Chengguan Town |distribute the | |Chengguan Town |the |
| | | |survey table for | | |project construction, and |
| | | |public | | |suggested to build new |
| | | |participation | | |drainage pumping station, |
| | | | | | |doing silt scouring of |
| | | | | | |drainage ditches |
| | | | | | |The environmental sanitary|
| | | | | | |in |
| | | | | | |the construction place is |
| | | | | | |very poor. it was |
| | | | | | |extremely necessary to |
| | | | | | |carry on comprehensive |
| | | | | | |improvement, including |
| | | | | | |silt clearing and |
| | | | | | |vegetation restoration; |
| | | | | | |Announce ahead of time |
| | | | | | |before |
| | | | | | |the construction and do |
| | | | | | |environment protection |
| | | | | | |measures in the |
| | | | | | |construction site. |
| |2007．7 |Send out requiring|Asking for |City PMO |Wang zhenlong, |The experts strongly |
| | |letters |experts | |Tian zhongzhi |support the |
| | | |suggestions | |Yang linhai, |project construction |
| | | | | |Liu Chao, |The silt cleared should be|
| | | | | |Huang kang, | |
| | | | | |Jin Yanchun |handled reasonably. |
| | | | | |Zhao Yuangang |The pumping station should|
| | | | | | |be |
| | | | | | |good for the drainage |
| | | | | | |gathering and far away |
| | | | | | |from the crowd compact |
| | | | | | |district. |
| | | | | | |Prudently choose the waste|
| | | | | | | |
| | | | | | |blocking facility and the |
| | | | | | |waste blocking plan. The |
| | | | | | |pumping station completes |
| | | | | | |the pollution prevention |
| | | | | | |and treatment measures of |
| | | | | | |the odor and the noise. |
| |2007.7.9 |The conference |The public |the Huaiyuan |inhabitants in |The conference |
| | |room of the |negotiation |County Development|Chengguan Town |participants |
| | |Huaiyuan County |symposium |and Planning |community, |\generally cared about the|
| | |Development and | |Commission |farmers from |sanitary maintenance and |
| | |Planning | |PMO leading Group |Lizuizi village, |management problems after |
| | |Commission | |EIA agency |Xinzhuangzi |the silt clearing of |
| | | | | |village, Meicheng|ditches and the ponds. |
| | | | | |village, Longtou |It is suggested to build |
| | | | | |Village, the |rubbish stacking and |
| | | | | |inhabitants at |collecting points in the |
| | | | | |the Bianhe Road, |inhabitants’ living area |
| | | | | |the staffs in the|near the draining ditches |
| | | | | |Chinese Medicine |and ponds and the sanitary|
| | | | | |Hospital |department clean and take |
| | | | | | |away at the scheduled |
| | | | | | |time. |
|nature of |
|PUBLIC PARTICIPATION |
|1ST PUBLIC |2007．1 |THE INFLUENCED |VISIT ON SITE |COUNTY |The affected|The public surveyed support the |
|PARTICIPANT | |VILLAGES NEAR |AND DISTRIBUTE|PMO, |villages |project construction. |
| | |MOHEKOU TOWN |THE SURVEY | |near the | |
| | |INDUSTRY GARDEN,|TABLE FOR |The |Mohekou Town| |
| | |SANPU VILLAGE |PUBLIC |Management|industry | |
| | | |PARTICIPATION |Commission|garden, | |
| | | | |, |Sanpu | |
| | | | | |Village | |
| | | | |EIA agency| | |
|2nd public |2007．7 |The influenced |Visit on site | |The affected|The public surveyed support the |
|participant | |villages near |and distribute| |villages |project |
| | |Mohekou Town |the survey | |near the |construction |
| | |Industry garden,|table for | |Mohekou Town|The surveyors cared about the problem |
| | |Sanpu Village |public | |industry |of |
| | | |participation | |garden, |guaranteeing the quality and volume of|
| | | | | |Sanpu |water supply most. They wish to use |
| | | | | |Village |the water from the surface water |
| | | | | | |works. |
| | | | | | |they thought it was urgently needed to|
| | | | | | | |
| | | | | | |improve the water facilities, the |
| | | | | | |sewage facilities, the road facilities|
| | | | | | |in the Mohekou industry development |
| | | | | | |area; |
| |2007．7 |Send out |Asking for |City PMO |Wang |The experts strongly support the |
| | |requiring |experts | |zhenlong, |project |
| | |letters |suggestions | |Tian |construction |
| | | | | |zhongzhi |There are water drainage problems |
| | | | | |Yang linhai,|because |
| | | | | |Liu Chao, |of low topography of garden area. |
| | | | | |Huang kang, |There are problems for the enterprises|
| | | | | |Jin Yanchun |in the |
| | | | | |Zhao |garden area whether or not being able |
| | | | | |Yuangang |to meet the pollution discharge |
| | | | | | |standards. |
| | | | | | |It should be carried on the technical |
| | | | | | |proof to |
| | | | | | |the treating process and adopt |
| | | | | | |suitable limiting condition for the |
| | | | | | |chemical enterprises |
| | | | | | |The water resources proof and |
| | | | | | |comparison |
| | | | | | |and selection of the water supply plan|
| | | | | | |to the surface water works should be |
| | | | | | |carried out. |
| |2007.7.6 |The conference |The public |Management|Villagers |It should be solved for the problem of|
| | |room of Mohekou |negotiation |commission|from Mohekou|the |
| | |industry garden |symposium |associatio|Village, |draining water in the land which is |
| | |management | |n in |Tuanjie |not taken over for use. |
| | |commission | |Mohekou |Village, |The location selection of the |
| | | | |Town |Sanpu |wastewater |
| | | | |Industry |Village, |treatment plant should be reasonable |
| | | | |garden, |Tangchen |to guarantee no the odor influence on |
| | | | |EIA agency|Village, |the inhabitant area. |
| | | | | |Lijiawa |The inhabitants are willing to pay the|
| | | | | |Village, | |
| | | | | |Yuanji |suitable fee for using the tap water. |
| | | | | |Village |It is hoped to do effective collection|
| | | | | | |and |
| | | | | | |processing for all the production |
| | | | | | |wastewater and the sewage in the town |
| | | | | | |and all water is integrated completely|
| | | | | | |in the sewage treatment plant to be |
| | | | | | |constructed. |
11. Summary of EMPs
1. Environmental Administrative Authority and Duties
Relevant organizations for the project’s environmental protection work can be classified into: administrative authority, supervision authority and monitoring authority and the corresponding duties are as follows:
◆ Administrative Authority
The managerial relationship between administrative authority and this project refers to the following table.
Table 150: Managerial Relationship between Administrative Authority and Project
|No |Project Name |Project Description |Administrative Authority |
|1 |Tianhe River Flood |Tianhe River Flood Prevention Station Project |Bengbu Municipal Bureau of |
| |Prevention Station | |Water Resources |
|2 |Longzi River Project |Slope protection and the vegetation along the bank of the Longzi |Bengbu Economic Development|
| | |River, |Zone Administration |
| | |Longzi River Flood Prevention Pumping Station Project |Bengbu Municipal Bureau of |
| | | |Water Resources |
| | |Cao Mountain |Bengbu Economic Development|
| | | |Zone Administration |
|3 |Xijiagou Project |Baligou –Donghai Road to east side of riverway, bridge section of |Bengbu High tech |
| | |Qingjia Mountain |Development Zone |
| | |other areas from Tushan Road Bridge to Qingjia Mountain bridge |Yuhui District |
| | |section | |
| | |Changzhong Road to Yanshan Road |PLA Vehicle Management |
| | | |Institute |
| | |South of Qingshan Road |Bengbu High tech |
| | | |Development Zone |
|4 |Urban Drainage and |3 Flood Prevention Stations in Xinchuantang and Nanshijia, as well |Bengbu Construction |
| |Flood Prevention |as urban rainfall and sewage pipeline project |Commission |
| |Project | | |
| | |The project of rainfall pipeline network and sewage pipeline network|Bengbu Economic Development|
| | |in Economic Development Zone |Zone Administration |
| | |Rainfall pipe network in High-tech Development Zone |Bengbu High tech |
| | | |Development Zone |
| | |Rainfall pipe network and Elevated Pumping Station at east bank of |Longzi River Area of Bengbu|
| | |Longzi River |City |
|5 |Huaishang District |Wuxiao Street Flood Prevention Pumping Station |Bengbu Municipal Bureau of |
| |Project | |Water Resources |
| | |Small Bengbu, Wangxiaogou Flood Prevention Station, Huaibei Road and|Huaishang District |
| | |surrounding environment treatment, construction for 21 roads within |Government |
| | |the city, as well as sewage pipeline of Daqing North Road | |
|6 |Guzhen County Project |Sewage pipeline construction of Chengguan Town, slope protection and|Construction Engineering |
| | |afforestation of south bank of the Sanba River, ditch and pond |Bureau of Guzhen County |
| | |regulation within the town and slope protection afforestation | |
| | |Flood prevention ditch., drainage ditch dredging, banks protection |Water Resources Bureau of |
| | |and afforestation, drainage station and culvert gate project, |Guzhen County |
| | |bridge works and levee flood control road works | |
| | |Closure works Chengxi inflowing river pollution discharge outlet |Environmental Protection |
| | | |Bureau of Guzhen County |
|7 |Wuhe County Project |Sanpu ditch dredging and the Sanpu River Flood Prevention Pumping |Water Resources Bureau of |
| | |Station Project |Wuhe County |
| | |Construction of Surface Water Plant and Sewage Treatment Plant |Urban Construction |
| | | |Commission of Wuhe County |
| | |Mohekou Town and road works in the park |Mohekou Park |
|8 |Huiyuan County Project|Flood Prevention Ditch Project and Flood Prevention Pumping Station |Water Resources Bureau of |
| | |Project |Huiyuan County |
| | |Drainage Pipeline Network |Construction Bureau of |
| | | |Huiyuan County |
| | |Rainfall Pipeline Network for grain and oil processing area and |Chengguan Town of Huiyuan |
| | |supporting roads |County |
Main duties for Administrative Authority are as follows:
1) Implement thoroughly environment protection regulations and policies issued by National Departments and Water Source Department
2) Implement environment management on the project during Construction Period and operating period.
3) Set up “Environment Protection Management Office” under each Engineering Construction Headquarters in the period of construction and appoint 2-3 experienced environment protection management staff, and the proposed Environment Relieving Measures in this report implemented by the contractors of supervision project.
4) Appoint environment monitoring authority or relevant departments to make environmental supervision, monitoring and environment protection acceptance on the project.
◆ Supervision Authority
Bengbu City Environmental Protection Bureau receives job instructions from Anhui Provincial Environmental Protection Bureau and supervise construction unit to carry out environmental management plan and implement relevant regulations and standards concerning environmental management .In addition, Bengbu Municipal Environmental Protection Bureau also coordinates the departments to do a good job in environmental Protection and is responsible for supervision and inspection on the construction, implementation and operation of environmental Protection facilities about the projects within administrative jurisdictional area.
◆ Monitoring Authority
According to relevant regulations concerning environmental management on construction project, the project shall implement environmental monitoring system. Independent works of each subproject should appoint two monitors, who are responsible for fully supervising, inspecting, managing and controlling specialized departments in charge of the implementation of environmental protection projects and the contractors of engineering projects in charge of environmental protection work during construction period and are answerable to inspect and supervise implementation conditions of environmental protection measures carried out by construction unit pursuant to monitoring plan contents in construction period. After finishing the construction, those monitors should report monitoring authority and project owner to accept environmental protection conditions about the construction and sign Work Completion Certificate as well as Works Hand-Over Document.
2. Environmental management supervision plan
1. Environmental management supervision plan objective
Through drawing up scientific and effective environmental management plan, the construction and operation of this project are able to meet the idea of “Three Simultaneities” on national economic and environmental construction, that is, simultaneous plan, simultaneous implementation, and simultaneous development. And this plan provides the basis for the designed implementation of environmental protection measures and the supervision carried out by environmental protection departments to the works.
2. Environmental management supervision plan content
◆ Construction period
1) Shall supervise and carry out environmental protection measures in construction period in order to make them implemented effectively;
2) When the construction is made on heavily-trafficked road section, it is required to implement transport impact relieving measures regulated by this report in order to abate traffic adverse impact and coordinate traffic congestion accidents caused by the construction of this project;
3) Shall control the plants destruction and soil erosion caused by this construction, recover temporary land occupied for the construction and restore the vegetation;
4) Shall accept the public’s complaint on construction disturbance events and deal with coordinately construction disturbance to the life and work of the residents and the units along the road;
5) Shall control construction operating area and regulate the behavior of the builders in order to man –made destruction on ecology and vegetation out of construction site.
6) If underground cultural relics are found in the process of engineering construction, shall stop construction and organize personnel to protect the site, and then report cultural relics department so as to avoid the accidents of cultural relics destruction.
◆ Operation period
1) After the construction is finished, shall strengthen the supervision and management on ecological environment impacted by construction project concerning the waters, soil, vegetation, atmosphere and noise and sensitive points of surrounding environments as well as the protection of environmental protection targets, and effective measures should be adopted to prevent the destruction of surface soil and vegetation and pollution of ground water and surface waters, in addition, the measures are also used to stop the behavior form destroying acoustic environment of environmental sensitive points, such as the residents area and hospital, and atmospheric environment;
2) Environmental Monitoring authority is regularly entrusted to monitor the environment under operation period;
3) Shall supervise effective fulfillment of the environmental protection measure under operation period;
4) Shall thoroughly implement national and local environmental protection regulations, laws and standards;
5) Advanced techniques and environmental protection experience should be widely applied; at the same time, shall organize relevant trainings on special skills of environmental protection for the management staff, who take part in the operation of this project.
3. Environmental monitoring plan
1. Environmental monitoring proposal
The purpose of regulating Environmental Monitoring Proposal is to supervise the implementation of all environmental protection measures and adjust the measures in light of monitoring results; meanwhile, the plan provides the basis for implementation time and plan on environmental measures. The principle to regulate environmental monitoring plan is to predicate what main environmental impact will be brought under construction and operation period.
2. Environmental monitoring authority
Environmental monitoring work of this project can entrust Bengbu Municipal Environmental Monitoring Station or the Units with monitoring qualification to undertake. Before the commencement of the construction, Construction Unit shall sign Environmental Monitoring Agreement on Construction Period with Bengbu Municipal Environmental Monitoring Station or the Units with monitoring qualification; in addition, Environmental Monitoring Agreement on Operation Period shall be signed with Monitoring Station before the project is delivered and operated.
3. Environmental monitoring plan
Environmental Monitoring Plan of this project can refer to the following tables.
Monitoring data during Construction Period should be processed and evaluated in time, and then engineering measures should be adjusted according to evaluation results, especially, water quality on the sewage, which are discharged into the Huaihe River, the Tianhe River, the Longzi River, the Wohe River, the Beifei River, the bypass channel of Mochong River, the Huaihongxin River and other rivers, should be monitored. Meanwhile, water treatment facilities and drainage facilities should be adjusted in time according to the results of water quality monitoring in order to guarantee that the sewage meets the standard to discharge.
Database Management System and Quality Auditing System are set up for monitoring data. The audited data are uniformly kept for the convenience of future inquiry and check.
Table 151: Environmental monitoring plan of the Tianhe Project during construction period
|Main affecting factor | Monitoring Point and position |Monitoring index|Monitoring |Executing standard |Routine monitoring agency |Regular supervising |
| | | |frequency | | |and managing agency |
|Raising dust |Construction area boundary(construction |TSP |Twice in the |Ambient Air Quality Standard|City environmental |City Environmental |
| |operation area) | |construction |level 2 |monitoring station |Protection Bureau |
| |One point | |period | | | |
|Noise |Construction area boundary(construction |Leq |Twice in the |Noise Limits for |Qualified agency with |City Environmental |
| |operation area) |Dba |construction peak|Construction Site |certificate or City |Protection Bureau |
| |One point | |period | |environmental monitoring | |
| | | | | |station | |
| |Construction temporary area boundary | | | | | |
| |(south of the pumping station) | | | | | |
| |One point | | | | | |
|Sludge |Silt dug from the pumping station hole |Cd、Cr、Cu |Once , after dug |Control Standards for |City environmental |City Environmental |
| |excavated for building foundation |Hg、Pb、As |and before refill|Pollutants in Sludges from |monitoring station |Protection Bureau |
| | | | |Agricultural Use | | |
Table 152: Environmental monitoring plan of Longzi Lake project during construction period
|Major effect |Monitoring content |Monitoring target |Monitoring point and position |Monitoring frequency |Executing standard |Routine monitoring |Regular supervising |
|factor | | | | | |agency |and managing agency |
|Water environment |Water residual at |Ss、tn、tp |Discharge outlet of the |Online monitoring of ss, tn and tp, |Integrated Wastewater |Qualified agency with |City Environmental |
| |dump site | |sedimentation at each dump site |Twice in the construction period |Discharge Standard |certificate or city |Protection Bureau |
| | | | | |Level 1 |environmental | |
| | | | | | |monitoring station | |
|Atmospheric |Raising dust in |Tsp |Entrance to the Xinfu village in | Once every year at the construction peak |Ambient Air Quality Standard |City Environmental |City Environmental |
|environment |construction | |the east side of the draining |time |level 2 |Monitoring Station |Protection Bureau |
| | | |pumping station of Longzi lake | | | | |
| |Odor |Nh3、h2s |Dump site for sludge |Once, before the construction of scouring |Emission Standards for Odor | | |
| | | | |project, take it as the background value. |Pollutantslevel 2 | | |
| | | | |Once in the operation period at the dump site| | | |
| | | | |of the scouring project | | | |
|Sound environment |Noise of |Leq |Construction operation area |One point , |Noise Limits for Construction|Qualified agency with |City Environmental |
| |construction | |One point |Twice at the construction peak time |Site |certificate or city |Protection Bureau |
| |machinery | | | | |environmental | |
| | | | | | |monitoring station | |
|Sludge |Silt scouring |Cd、cr、cu |Choose two scouring area, one |Two pints, after sludge removing and before |Control Standards for |City environmental |City Environmental |
| | |Hg、pb、as |monitoring point each |refilling, takes them as the environment |Pollutants in Sludges from |monitoring station |Protection Bureau |
| | | | |background |Agricultural Use | | |
Table 153: Environmental monitoring plan of Longzi Lake project during operation period
|Major effect factor |Monitoring |Monitoring |Monitoring |Monitoring frequency |Executing standard |Routine monitoring agency |Regular supervising and managing |
| |content |target |point and | | | |agency |
| | | |position | | | | |
|Sound environment |Operational |Leq |One point each | 2 points in total, |Noise Limits for |Qualified agency with |City Environmental Protection |
| |noise of the | |community of |monitoring once when the |Construction Site |certificate or city |Bureau |
| |drain pumping | |Yuye Xincun and|drain pumping station in |Level 2 |environmental monitoring | |
| |station | |Jinyeyuan |operation every year，monitor| |station | |
| | | | |once during daytime and at | | | |
| | | | |night, respectively | | | |
Table 154: Environmental monitoring plan of urban project during construction period
|Major effect |Monitoring point and position |Monitor target |Monitor frequency |Executing standard |Routine monitor |Regular supervising and |
|factor | | | | |organization |managing organization |
|Raises the dust |Construction area boundary |Tsp |In construction |Ambient Air Quality Standard level|City monitoring station |City Environmental |
| |(construction operation area) | |period |2 | |Protection Bureau |
| |One point | |Twice | | | |
|Noise |Construction area boundary(construction operation area) |Leq , db( a ) |In a construction |Noise Limits for Construction Site|Organization with |City Environmental |
| |One point |Continuously equivalent a |peak | |certifications or city |Protection Bureau |
| | |acoustic level |Twice | |monitoring station | |
| |Construction temporary area boundary | | | | | |
| |One point | | | | | |
Table 155: Environmental monitoring plan of urban project during operation period
|Major effect factor |Monitoring point and position |Monitor target |Monitor frequency |Executing standard |Routine monitor |Regular supervising and managing |
| | | | | |organization |organization |
|Noise |West Shengli Rd., Tiandiren garden |Leqa |Total 7 points During |Method of Measuring Noise |Request a qualified |City Environmental Protection Bureau |
| |East Shengli Rd,Suncheng Village | |operation period, once for |at Boundary of Industrial |organization with | |
| |Zhongrong St.,Jianguo Rd. Community | |each point |Enterprises |certificates | |
| |Hongqi 2 Rd., Sijiyangguang Garden | | | | | |
| |Dingmiao Village in Longhu District | | |Type 1, | | |
| |Huangshan Village in Gaoxin District | | |Type 2, | | |
| |The drain prevention station at Yinghu Rd.,| | |Type 3, | | |
| |Jianchaxincun Village | | |Type 4. × | | |
×Note：1、for the 4 draining pumping stations in the old city district ，noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial EnterprisesType 2, Type 4;
2、for the 2 wastewater pumping stations in the Gaoxin District，noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial Enterprises type 3, Type 4;；
3、for the 1draining pumping station in the Longzihu District，noise at the factory boundary executes Method of Measuring Noise at Boundary of Industrial Enterprises type 3, Type 4.
Table 156: Environmental monitoring plan of Xijiagou & Baligou project during construction period
|Main affecting |Monitoring |Monitoring |Monitoring |Monitoring frequency |Executing standard |Routine monitoring |Regular supervising |
|factor |content |index |Point and position | | |agency |and managing agency |
|Atmospheric |Raising dust |TSP |Once each at the construction |2 points，once each in the |Ambient Air Quality Standard level 2 |City Environmental |City Environmental |
|environment | | |site at Xijiagou and Baligou, |construction peak period | |Monitoring Station |Protection Bureau |
| | | |respectively | | | | |
| |Odor |NH3、H2S |One point each sludge dumping site beside |2 points，once each in the | | | |
| | | |Xijiagou and Baligou, respectively |construction peak period | | | |
|Sludge |Silt dug |Cd、Cr |Two points for the Xiejiagou and the |4 points，one before the |Control Standards for Pollutants in |City Environmental |City Environmental |
| | |Cu、Hg |Baligou, respectively (different zones |cleaning the sludge |Sludges from Agricultural Use |Monitoring Station |Protection Bureau |
| | |Pb、As |and stage) | | | | |
Table 157: Environmental monitoring plan of Huaishang project during construction period
|Major effect |Monitoring point and position |Monitor target |Monitor frequency |Executing standard |Routine monitor organization |Regular supervising and managing |
|factor | | | | | |organization |
|Air |At the boundary of construction |Tsp、 |4points |Ambient Air Quality Standard level |City environmental monitoring |Environmental Protection Bureau |
| |site ( binhe av., 3 flood | |Once /year/point |2 |station | |
| |prevention drain stations） | | |Air pollutant synthesis emissions | | |
| | | | |standard | | |
|Noise |At the boundary of construction |Leq dba |4points |Noise Limits for Construction Site |Qualified agency with certificate |Environmental Protection Bureau |
| |site (3 flood prevention drain | |Once /point in the | |or city environmental monitoring | |
| |stations, binhe av.） | |construction period | |station | |
|Sludge |Silt scouring（Beifei River, |Cd、cr、cu |3 points |Soil environment quality standar |City environmental monitoring |Environmental Protection Bureau |
| |xiaobengbu, wangxiaogou drain |Hg、pb、as |Once /year/point |level 3 |station | |
| |stations） | | | | | |
Table 158: Environmental monitoring plan of Huaishang project during operation period
|Major effect factor|Monitoring point and position |Monitor target |Monitor frequency |Executing standard |Routine monitor |Regular supervising and|
| | | | | |organization |managing organization |
|Noise |One point at each position of 24th |Leq dba |Two points, |Sound Environment Quality Standard |District Environmental |City Environmental |
| |middle school, liu village ,respetively | |Twice /year |Type 3 |Protection Bureau |Protection Bureau |
Table 159: Environmental monitoring plan of Guzhen project
|Sub projects |Monitoring time |Environmental main |Monitoring point and position|Monitoring item |Monitoring frequency |Monitoring agency |
| | |factor | | | | |
|Raising dust |Construction area boundary(construction operation |Tsp |In construction period |Ambient Air Quality Standard level|County environmental |City Environmental Monitoring |
| |area) One point | |Once |3 |monitoring station |Station and Environmental |
| | | | | | |Protection Bureau |
|Noise |1) Construction area boundary(construction |Leqa |In a construction peak |Noise Limits for Construction Site|County environmental |City Environmental Monitoring |
| |operation area) One point | |Twice | |monitoring station |Station and Environmental |
| | | | | | |Protection Bureau |
| |2)Construction temporary area boundary One point | | | | | |
|Sludge |Sludge from the pond luotuoling hill and the pond|Cd、cr、cu |Once, after sludge removing |Control Standards for Pollutants |County environmental |City Environmental Monitoring |
| |at Chinese Medicine Hospital |Hg、pb、as |and before refilling, takes |in Sludges from Agricultural Use |monitoring station |Station and Environmental |
| | | |it as the environment | | |Protection Bureau |
| | | |background | | | |
Table 161: Environmental monitoring plan of Huaiyuan project during operation period
|Major effect |Monitoring point and position|Monitor target |Monitor frequency |Executing standard |Routine monitor |Regular supervising and managing |
|factor | | | | |organization |organization |
|Noise |Xinzhuang village where is |Leq a |1-2 times When drains and waterlogged in the |Method of Measuring Noise at |County Environmental |City Environmental Monitoring |
| |the nearest to the | |flood season |Boundary of Industrial Enterprises|Monitoring Station |Station and Environmental |
| |xinzhuangzi pumping station | | |Type 1 | |Protection Bureau |
| |One point | | | | | |
Table 162: Environmental monitoring plan of Mohekou Project during construction period
|Main affecting factor | Monitoring Point and position |Monitoring index |Monitoring frequency |Executing standard |Routine monitoring agency|Regular |
| | | | | | |supervising and |
| | | | | | |managing agency |
|Atmosphere |Construction site boundary ( drain |TSP |4 points total, once every |Ambient Air Quality Standard level 2 |City environmental |County |
| |pumping station, sewage treatment | |point in the construction | |monitoring station |environment |
| |plant, water treatment plant, one | |period | | |supervision |
| |point in the development zone） | | | | |brigade |
| |Sludge scouring position（Sanpudagou Ditch, |NH3、H2S |2 points, |Emission Standards for Odor Pollutants| | |
| |Mochong yinhe River） | |Once each in the |level 2 | | |
| | | |construction period | | | |
|Noise |Construction site boundary ( drain pumping |Leq,dba |4points，Once each in the |Noise Limits for Construction Site |District environmental | |
| |station, sewage treatment plant, water | |construction period | |monitoring station | |
| |treatment plant, one point in the development | | | | | |
| |zone） | | | | | |
|Sludge |Sludge scouring position（Sanpudagou Ditch, |Cd、Cr、Cu |2points，Once each before |Soil Environment Quality Standard |City environmental | |
| |Mochong yinhe River） |Hg、Pb、As |the construction period, |level 3 |monitoring station | |
| | | |take it as the environment | | | |
| | | |background | | | |
Table 163: Environmental monitoring plan of Mohekou Project during operation period
|Main affecting factor | Monitoring Point and |Monitoring index |Monitoring frequency |Executing standard |Routine monitoring agency |Regular supervising and managing |
| |position | | | | |agency |
|Atmosphere |Sludge area in the |H2S、NH3 |1 point，once |Discharge Standard of Pollutants|City Environmental Monitoring |County Environment Supervision |
| |wastewater treatment plant | |At the period of high |for Municipal Wastewater |Station |Brigade |
| | | |temperature in summer |Treatment Plant Level 2 | | |
|Wastewater |Water quality of Inlet and |Ph、codcr、SS、BOD、ammonia |2 points，twice |Disperse into municipal pipe | | |
| |outlet in the wastewater |nitrogen |/year /point |network if there is a sewage | | |
| |treatment plant | | |factory. Carry out Integrated | | |
| | | | |Wastewater Discharge Standard | | |
| | | | |level 3 | | |
|Water quality |Water quality at the inlet |PH, turbidity, ammonia |2 points，twice |Water quality at the inlet | | |
| |of water treatment plant |nitrogen, total large intestine|/year /point |Environmental Quality Standards | | |
| | |bacteria colony, petroleum | |for Surface Water level 3; For | | |
| | |class, permanganic index, total| |water quality of the outlet, | | |
| | |soluble solid | |Environmental Quality Standards | | |
| | | | |for Surface Water | | |
|Noise |One point at the village |Leq dba |1 point |Sound environment Quality | | |
| |near the Sanpuhu Lake Drain | |Once /year |Standard | | |
| |Pumping Station | | |Type Ⅲ | | |
12. Resettlement and Social Impacts
1. RAP
1. Resettlement Proposal
• ¬ Foundation
The preparation of the resettlement action plan of this project and the implementation of future resettlement work shall be made strictly in accordance with the pertinent requirements of World Bank Business Guideline OP4.12. The resettlement work shall be executed strictly according to the resettlement compensation standard stipulated in the foregoing action plan and prior consent of the World Bank is required if there is any change during the resettlement.
• ¬ Principle
To optimize the project design, keep away from the area with dense population or multi-storey, high-rise and permanent buildings, reduce the area that is influenced by land expropriation and house removal to the minimum, and minimize the number of involuntary resettlement is the principle this resettlement observes. All the involuntary resettlement will be included into the project construction, providing sufficient capital for the migrants and making them benefit from the project. The migrants will receive help during the migration-relocation as well as from the resettlement area. For the influenced households, their living environment will be improved and the resettlement area will be equipped with complete facilities for life, providing with convenient traffic and comfortable environment. Minimize the losses that are incurred to the enterprises and institutions by the land expropriation and housing removal, for instance, if the housing removal is inevitable, the compensation for the loss of suspension should be made, and the enterprises and institutions should be properly treated so that the production and operation can be resumed soon. The migrants should be encouraged to participate in the preparation of resettlement plan and the implementation of the resettlement, and the wills of the migrants should be fully respected. The objective of the target police is to avoid the negative influences brought by the land expropriation and housing removal to the most. For the property of the people who are affected by the negative influences, compensation will be made according to the replacement price. The resettlement objective of this project is to ensure the migrants can be compensated for all the losses they suffer from, can be properly resettled and well recover from the loss, enable them to share and enjoy the benefits of the project, offer them subsidy for their temporary difficulties to ensure their income and living standard as well as the production and profiting ability of the enterprises can be improved or at least be resumed to the higher level before the migration-relocation or the start of the project.
• ¬ Organization
Bengbu City established the leading group office of urban construction environmental protection project the World Bank loan for, responsible for providing guidance to the preparation of resettlement plan of environment control project of Bengbu, the World Bank loaning city, the implementation of land expropriation and housing removal and contacting with the World Bank as well.
2. Compensation Standard
Where the housing removal and land expropriation is made at the state owned and collectively-owned land within the planning scope of this project and it is required that the dismantled and the unit whose land is expropriated should be compensated and resettled, the compensation standard should be prepared and made in accordance with the Land Management Law of the People's Republic of China, Regulation on the Dismantlement of Urban Housing, relevant laws and regulations, Operational Polices for Involuntary Resettlement OP4.12 of the World Bank and the local and actual situation of the project.
3. Public Participation
Since the public participation did not make the majority citizen have a clear and complete understanding and knowledge of the project construction, the housing removal policy and even the rights range when their legal rights and interests are infringed during the housing removal, after the plan is reviewed and approved by the World Bank, the publicity and propaganda of the policy should be strengthened, utilizing such means as television, newspaper, and internet to the most to introduce the project and relevant policies of land expropriating and housing removal, and spreading the information book of resettlement after the project assessment and prior to the moving to inform the resettlement of the project situation, land expropriation and housing removal policies, relevant laws and regulations, and the approach for appeal.
During the preparation of the resettlement plan and the implementation, the mechanism of appealing is established. After the resettlement institutions of all levels have timely discussion and treatment, all the resettlement institutions will be free for receiving the complaint and appeal of the influenced people.
4. Downtown Drainage Sub-project of Bengbu
(1) Land Occupancy and Expropriation
The downtown drainage sub-project of Bengbu mainly involves the land of pump station work, rain water and sewage pipe work and road work. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.
(2) Compensation Budget
The compensation budget of this project includes the following five compensation costs: the compensation cost for permanent land occupancy, the compensation cost for dismantling the urban residential housing, the compensation cost for dismantling the rural residential housing, the compensation cost for the influenced shops, and the compensation cost for the influenced infrastructures and ground attachment.
The total budget of this project is RMB122,000,000, including the compensation cost of RMB82,492,400 for permanent land occupancy, accounting for 67.36%, the compensation cost of RMB19,942,200 for dismantling the houses of both the urban residents and rural residents, accounting for 16.28%, and the compensation cost of RMB1,143,300, accounting for 0.93 %.
（3）Conclusion
• ¬ ¬ Permanently Expropriated Land
The permanently expropriated land occupies 1202.8 mu in area, including farmland, non-agriculture land and permanent loss of crops, with 864 households and 2819 persons involved. All the villages / production units that are influenced can have compensation. The influenced will receive the young crops compensation. If the influenced villages will not reallocate the farmland, the influenced will receive the cash compensation ：resettlement subsidy and part of the land compensation for the recovery of income and living. The young crops compensation for the expropriated land will be paid as per the compensation standard of Bengbu. If the collectively-owned land will not be reallocated, the influenced will receive the resettlement subsidy and part of the land compensation for the recovery of income and living. The local village and town government and the enterprises of the villages will provide job opportunities to the influenced. And the client of the project will provide the skill training in the first place to the influenced.
• ¬ ¬ Permanently Dismantled Private Housing
The total floor area is 34602.96m2, including the buildings of the land, and there are 170 influenced households, including 631 persons. The influenced will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation for house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the price of housing land, while for the dismantled urban housing, the cash compensation will be made as per the replacement price or exchange the house property right. If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to assess the property, and the result of assessment will be the compensation standard of housing removal.
• ¬ ¬ Shops
There are totally 6 shops, involving 21 persons. The floor area of the influenced buildings is 2090.98m2. The shopkeeper of the influenced shops will receive cash compensation or their shops will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, the cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.
• ¬ ¬ Public Facility
As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or a better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.
5. The Sub-project of Guzhen County
（1）Land Occupancy and Expropriation
The influenced scope of this project covers：2 villages in Chengguan Town (Meiying Village and Dongmiao Village), including 7 groups (Donghu Group, Huangying Group, Houmei Group, Xiaying Group, Jiangguai Group, Houdui Group, and Pangying Group), 484 households, 1936 persons, and 811.6mu paddy field. In Huanyuan County, there is 12 mu state-owned land, 21 influenced urban residential housing with1686m2 housing removal area, 4 influenced shops and 1 influenced enterprise.
（2）Compensation Budget
The budget includes such 5 costs as the compensation cost for dismantling the rural collectively-owned land, the compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises, compensation cost for shops and the compensation for the influenced infrastructures.
The total resettlement budget of this project is RMB44,784,900, including the cost of RMB31,395,100 for rural collectively-owned land expropriation, accounting for 70.1％; the compensation cost of RMB2,558,500 for urban residential housing removing, accounting for 5.7%, the compensation cost of RMB144,000 for the influenced enterprises, accounting for 0.3%, the compensation cost of RMB773,000 for the influenced shops, accounting for 1.7％ and the cost of RMB16,900 for illegal building, accounting for 0.04％.
（3）Conclusion
• ¬ ¬ Permanently Expropriated Land
The permanent expropriated land is 661.09 mu in area, including farmland, non-agriculture land and the permanent loss of crops, with 615 households and 3418 persons are involved. All the influenced villages/ work groups can receive compensation. The influenced will receive young crops compensation. If the influenced village will not reallocate the farmland, the influenced will receive cash compensation, namely the resettlement subsidy and part of the land compensation, for the recovery of the income and living.
• ¬ ¬ Permanently Dismantled Private Housing
The total floor area is 3351.39m2 including the buildings on the ground. There are 34 households influenced, involving 138 persons. The influenced householders will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation made as per the house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the local price of curtilage, while for the dismantled urban housing; the cash compensation will be made as per the replacement price or exchange the title (house property right). If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to audit the property, and the result of auditing will be the compensation standard of housing removal.
• ¬ ¬ Shops
There is totally 1 shop, involving 63 persons. The floor area of the influenced buildings is 2829m2. The shopkeeper of the influenced shops will receive cash compensation or their shops will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.
• ¬ ¬ Public Facility
As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or the better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.
6. Sub-project of Huaiyuan County
（1）Land Occupancy and Expropriation
The flood prevention sub-project of Guzhen County involves land for ditch dredging work, embankment work, drainage pumping station building and rebuilding of municipal pipe network. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.
（2）Compensation Budget
The budget includes 5 costs, namely the compensation cost for dismantling the rural collectively-owned land, the compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises, compensation cost for shops and the compensation for the influenced infrastructures.
The total resettlement budget of this project is RMB44,784,900, including the cost of RMB31,395,100 for rural collectively-owned land expropriation, accounting for 70.1％; the compensation cost of RMB2,558,500 for urban residential housing removing, accounting for 5.7%, the compensation cost of RMB144,000 for the influenced enterprises, accounting for 0.3%, the compensation cost of RMB773,000 for the influenced shops, accounting for 1.7％ and the cost of RMB16,900 for illegal building, accounting for 0.04％.
（3）Conclusion
• ¬ ¬ Collectively-Owned Land
The compensation for land expropriation includes land compensation, resettlement subsidy and the compensation for ground attachment and young crops. The land compensation shall be in the possession of the rural collective economic organization, and the land expropriator can pay the village committee the land compensation in some proportion (no more than 20%) for the land expropriation, the money of which will be used by the village committee for developing the production and public welfare and shall not be defalcated. The remained land compensation can be paid to the land lost peasants directly or included into the basic living security fund of the land lost peasants. The compensation for the ground attachment and young crops shall be paid to the owner of the ground attachment and the young crops.
• ¬ ¬ Permanently Dismantled Private Housing
According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the compensation and resettlement way that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account. The formula for calculating the cash compensation is the upper limit of the cash compensation price of the dismantled building×the floor are of the dismantled building.
• ¬ ¬ Enterprise Building Removal
7. Sub-project of Huaishang District
（1）Land Occupancy and Expropriation
The influenced scope of this project: 2 towns (Xiaobengbu Town and Wuxiaojie Town), 7 villages/ resident committees (Binhe Zhengdu Village, Wuxiaojie Village, Shanxiang Village, Houlou Village, Chentai Village, Xiaobengbu Village and Gaoan Village). There are totally 281 households that are influenced and removed, and the influenced population is 1103. In addition, there is one enterprise and 4 urban residents that are relocated.
Related figures: the total land occupancy is 12001 mu in area, including 11735 mu state-owned land and 266 mu rural land; the total area of dismantled buildings is 49086.2 m2, including 48433.2 m2 dismantled rural housing and 653 m2 influenced enterprise.
（2）Compensation Budget
The budget includes 5 costs, namely the compensation cost for dismantling the rural residential housing, the compensation cost for rural land expropriation, compensation cost for dismantling the urban residential housing, compensation cost for the influenced enterprises and the compensation for the influenced infrastructures.
The total resettlement budget of this project is RMB125,191,300, including the compensation cost of RMB41,773,700 for dismantling the rural residential housing, accounting for 46.58%; the compensation cost of RMB34,255,800 for rural collectively-owned land, accounting for 38.20%, the compensation cost of RMB123,000 for the influenced enterprises, accounting for 0.14%.
（3）Conclusion
• ¬ ¬ Rural Dismantled Housing
According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the way of compensation and resettlement that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account.
• ¬ ¬ Collectively-owned land
The compensation for land expropriation includes land compensation, resettlement subsidy and the compensation for ground attachment and young crops.
8. Sub-project of Flood Prevention Control, Water Resource Control and Environment Improving of the Tianhe River
（1）Land Occupancy and Expropriation
The environment control project of the Tianhe River and the Heihu Mountain involves the land for the work of pump station, irrigation and drainage station, road foundation, greenery and nursery, and woodland extension. The area within the land scope for works and the area where the project construction so seriously affects the production and life of the residents that no recovery can be made are all included in the influenced area scope of the land expropriation and housing removal of the project.
The land of the Tianhe River Pumping and Drainage Station is mainly for the station, including the land for the station building, the land for station management, the land for borrow area and the land for construction area. The land for station and borrow area is the permanent land. The total permanent land is 20.33 mu in area.
The surrounding environmental control of the Heihu Mountain mainly includes the road construction and the cultivation of the waterfront and wetland vegetation of the Heihu Mountain swag. The total permanently expropriated land is 45 mu in area, including 30 mu megranate orchard and 15 mu farmland.
The relocation of the Tianhe River Fishery mainly involves the expropriation of 1000 mu fishing pond and the expropriation of 72 mu plowland for road construction. In addition, 51 households of urban residents and the fishing enterprises will move.
（2）Compensation Budget
It includes 5 costs, namely the compensation cost for the permanent land occupancy, the compensation cost for dismantling the urban residential housing, the compensation cost for dismantling the rural housing, the compensation cost for the influenced enterprises and the compensation cost for the influenced infrastructures and ground attachment.
The total resettlement budget of this project is RMB12,500,000, including the compensation cost of RMB97,793,900 for permanent land occupancy, accounting for78.23%, the compensation cost of RMB313,200 for dismantling the urban and rural residential housing, accounting for 2.5%, the compensation cost of RMB4,720,000 for the influenced enterprises, accounting for 3.78 % and the compensation cost of RMB110,000 for the influenced infrastructures and ground attachment, accounting for 0.01%.
（3）Conclusion
• ¬ Permanently Expropriated Land
The permanent expropriated land is 1737.33 mu in area, including farmland, non-agriculture land and the permanent loss of crops, with 81 households and 248 persons are involved. All the influenced villages/ production groups can receive compensation. The influenced will receive young crops compensation. If the influenced village will not reallocate the farmland, the influenced will receive cash compensation, namely the resettlement subsidy and part of the land compensation, for the recovery of the income and living.
• ¬ ¬ Permanently Dismantled Private Housing
The total floor area is 4350m2 and the buildings are on the ground. There are51 influenced households, involving 142 persons. The influenced will receive cash compensation and be provided with affordable housing or relocation housing. The house owner without Title Deed will receive the compensation made as per the house replacement price. For the dismantled rural housing, the compensation will be made in cash as per the replacement price of the same floor area plusing the price of housing land, while for the dismantled urban housing, the cash compensation will be made as per the replacement price or exchange the house property right. If the dismantled are not satisfied with the compensation standard for housing removal, they can commission the professional agency to assess the property, and the result of assessment will be the compensation standard of housing removal.
• ¬ ¬ Permanently Influenced Enterprises
There is totally 1 enterprise, with the floor area of 5300m2, involving 90 persons. The owner of the influenced enterprise will receive cash compensation or the enterprise will be rebuilt in other places. All the owners of the business buildings before the date of the publication of the project construction, which are either the buildings without certificate or the extended temporary buildings, should receive compensation. For the dismantled buildings, the cash compensation should be made as per the policy of Bengbu. And the influenced enterprises will receive subsidy for relocation.
• ¬ ¬ Public Facility
As the attachment, the influenced will receive cash compensation. The influenced collectivity will receive cash compensation or repairing. For the attachment on the ground of the expropriated land, compensation should be made in the replacement price in cash or repairing should be made till the ground is resumed to its previous condition or a better condition, and for the dismantled the buildings, cash compensation should be made in the replacement price of the same floor area.
9. Sub-project of Wuhe County
（1）Land Occupancy and Expropriation
The World Bank project in Wuhe County only involves the expropriation of rural collectively-owned land and there is no demolition. The rural collectively-owned land expropriated by the sub-project of Wuhe County is used for the work of the surface water treatment plant of Mohekou Town and the sewage treatment plant. Totally 2 villages, with 101 households and 420 persons, are influenced. The collectively-owned land expropriated is 139.69mu in area.
（2）Compensation Budget
There is only the compensation cost for permanent land occupancy in the total budget.
The total resettlement budget is RMB573,200 and it is the compensation cost for the permanent land occupancy.
（3）Conclusion
• ¬ ¬ Rural Collectively-owned land
The land compensation will be paid to the rural collective organization from which the land is expropriated, and the money will be used for developing the production and settling the life of the peasants. The labor settlement subsidy will be paid to the farming persons who need resettlement and the settlement and reception agencies. The land contractor will receive the young crops compensation and labor resettlement subsidy.
10. Sub-project of Xijiagou
（1）Land Occupancy and Expropriation
The influenced scope of this project: the high-tech area of Xijiagou project; 2 villages in Yanshan County, 1 village in the high-tech area and 4 villages in Qinji Town are influenced by the Yinhe water system control project of the high-tech area; and totally 2 villages in Qinji Town and 1 village in Changqing Town area influenced by the Baligou control project.
There is 440 mu expropriated rural collectively-owned land in the sub-project of Xijiagou.
（2）Compensation Budget
It includes 3 costs of the compensation cost for dismantling rural collectively-owned land, the compensation cost for dismantling rural residential housing and the compensation cost for the influence infrastructures.
The total budget of this project is RMB39,656,800, including the compensation cost of RMB30,176,500, accounting for 76.1％; the compensation cost of RMB3,761,700 for dismantling the rural residential housing, accounting for 9.5%; and the cost of RMB248,003 for the illegal buildings, accounting for 0.6％.
（3）Conclusion
• ¬ ¬Dismantled Rural Housing
According to the compensation and resettlement policy for the housing removal of this project, two ways of compensation and resettlement are adopted, namely, the cash compensation and the exchange of house property right. The resettlement can choose the way of compensation and resettlement that fits their economic condition and individual demands. Where the cash compensation is chose, the compensation shall be determined as per the assessment price of the local real estate market with such factors as the location, usage and floor area of the dismantled buildings taken into account.
• ¬ Collectively-owned land
The compensation for land expropriation includes the land compensation, resettlement subsidy and the compensation for ground attachment and young crops.
2. Social Impacts
1. Social Influence Analysis and Prevention Measures in Construction
1. Analysis of Influences on Residents’ Life
• During the construction, due to the excavation of ground, there will be flying dust when piling the earth and there will be more inhalation particles in the air, thus the surrounding residents and passers-by would be harmed in health.
• There are many fuel equipments and power machines in the construction area, the noise of which is disturbing. The living quality of the residents is lowered.
• It is inevitable that the construction would occupy road and greenery area, which will ruin the landscape and lower the traffic capacity of the road. And because of this, the local residents have to reroute their usual path whenever they go out, which is very inconvenient for their life.
• For the construction of large scale project, there will be at least one or more construction sites. Because of the entering of the construction workers, there are not only more wastes and garbage, which pollute the environment, but also many diseases are easy to be spread since the sanitary condition in the sites is not good, so the health of the surrounding residents are threatened.
• The management of the construction site would not be good since the people in the site are large in number and complex in constitute, and in addition, the people come and go frequently due to the supply and demands of construction materials as well as the living materials. There might be safety risks for the surrounding residents.
2. Analysis of Influence on Residents’ Life
During the construction of rain water and sewage pipe as well as the road, the most notable influence on the construction area is the influence on traffic.
• If the construction is conducted within the unfinished area, since it is farmland in the surroundings in most occasions, which is open, the construction would be conducted in full range in this area to promote the progress of the construction of the whole road or the complete network fast. Although the road within the construction area is not good, which has small traffic flow, the accessing of the construction vehicles won’t have notable influence on the traffic capacity of the surrounding road, instead, it will influence the road outside of the construction area greatly and add traffic pressure to the road outside of the construction area, namely, when the loading trucks carry gravels and sand and construction garbage out, the gravels or sand or garbage dropped and spilled out along the road would lower the levelness and flatness of the road and create harm and risk to the road as well as the vehicles that pass by. .
• The size and load of the transporting vehicles are large, so it is inevitable that the vehicles will produce some damages to the road surface and the foundation as well, especially the over loaded vehicles, which have stronger damaging capacity. If the construction lasts long in period, there will be road repairing and economy loss.
• Where the project locates at the center of the city or downtown area, the frequent passing of the construction vehicles would impose more pressure on the traffic which has been tense enough, making the downtown traffic more heavy and busy, especially at the rush hour, the traffic might be jammed when the idle condition of the vehicles lasts long and long-time horn of vehicle, thus the crowd would be restless and upset and the traffic order would be disturbed, due to which various traffic accidents are easy to take place.
According to the above analysis, the construction will not only generate adverse influences to the surroundings of the construction area, but also will bring some traffic and safety risks, affecting the social order and public living environment. Therefore, the management and control during the construction should be reinforced, the construction management system should be perfected, detail construction plan should be prepared, full consideration should be made to avoid the adverse influences and minimize the adverse influences to the society.
3. Prevention Measures
1．The traffic management department should reinforce the management and control of the construction area, make traffic distribution and rerouting plan according to the construction plan, and organize the traffic by utilizing the adjacent traffic network to the most, ensuring the residents’ daily life won't be disturbed.
2．Before construction, the construction company should make sufficient and full preparation, have full understanding and investigation of the works in relation to the construction, and provide cooperation to the related departments to have all the emergency work be fully prepared in advance, ensuring the regular state of social life.
3．In order to minimize the influence the construction brings down to the life of the urban residents as well as the traffic, the traffic routes should be planned and distributed in uniform to avoid traffic jam, and inform the people in advance through such means as broadcast, television and newspaper.
4．There should be signboard erected at the construction site, on which such information as the works of the construction, time, name of the contact person and telephone number should be given, asking for the forgiveness from the public for the inconvenience caused by the construction.
5．The garbage produced by the construction of pipe network and road should be cleared and transported in time, and the road and the material field should be cleaned in time to free more the occupied land so that the residents can have free way to go out.
6．For the works that must be carried out at night due to the limit of the construction technology and techniques, there should be prevention measures and technical proposal for the construction at night. The low-noise equipments and machines should be adopted as much as possible. The light mechanical equipments or semi-manual construction should be used. The mechanic vibration should be reduced and metal materials carrying should be avoided. The unruly loading and unloading and noise making is forbidden. The height and location of construction lighting should not affect the surrounding residents.
7．When the water supply, drainage, gas supply and heating supply is affected by the construction, negotiation and coordination with related authorities should be made in advance to work out the emergency plan. There should be persons specially assigned for the site supervision and inspection to ensure the accident can be treated promptly at the time it takes place.
8．The construction company should reinforce the management of both the construction workers and the site, have each worker and the visiting person registered and checked, and strengthen contact with the departments of property management and residents committee, communicating information from time to time, to strengthen the safety of the construction site and eliminate the restless and antipathy feelings and worries of the residents.
2. Analysis of the Social Influence after the Completion of the Project
1. Subproject of Huaiyuan County
1． Influence on Society and Economy
This project is a part of the road network, rain water pipe network and flood prevention and drainage system in the urban master planning. When the project is completed, it is not only the road and pipe network system of the city oil and grains industrial base is improved, but also the flood prevention and drainage capacity of Chengguan Town is enhanced. Thereby, the pace of realizing the urban master planning is quickened and the goal of social and economic development can be achieved soon.
（1）The Traffic Condition of the Oil and Grains Industrial Base of Chengguan Town is Improved
The oil and grains industrial base of Chengguan Town is located in rural area. According to the urban master planning, Chengguan Town will be the industrial area of Huanyuan County. However, the undeveloped traffic of that place prevents the development of economy seriously. The road work of the oil and grains industrial base of Chengguan Town improves the traffic there greatly. Improving the investing environment and enhancing the capacity of economic investing will promote the economy of this area greatly. It will be convenient for the residents to go out after the completion of the project.
（2）The Flood Prevention and Drainage Capacity is Enhanced
The current rain water drainage capacity of Chengguan Town is weak. The drainage network is in broken condition and it is open channel in some place, furthermore, in some place there is no drainage system at all. The project will perfect the rain water network, enhance the capacity of collecting and drainage of flood, increase the buffer time of flood, enhance the capacity of flood prevention and drainage of the city, mitigate the damages brought to the property of people by the flood, guaranteeing people’s happy and peaceful life.
In a word, the completion of the project will greatly enhance the service ability of the urban infrastructure, improve the city environment obviously, fasten the urbanization of Huaiyuan County and promote the economic and social development of Huanyuan County.
2．Analysis of Influence on Urban Environment and Ecological Landscape
（1）After the road work is completed, the road greenery will be increased and reasonable arrangement will be made. The road greenery can protect the road surface, prevent the water and soil from losing, reduce the traffic dust and noise, adjust and improve the microclimate of road, thus improving the landscape along the road and beautifying the road.
（2）The appearance of a city is often learned first when people pass along the road of the city. The road greenery would enhance the beauty of the city and makes people feel fresh and natural.
（3）The dredging of hill pond enhance the capacity of flood storage, enlarge the water surface in area, and create the nature landscape. Meanwhile, the vegetation resuming work is conducted around the hill pond, improving the environment of the pond further.
（4）The perfecting of the urban flood prevention and rain water drainage network mitigates the damages the flood brings to the environment of the city.
（5）Plant is one of the element that creates the beauty of city. Varied and colorful landscape of road can be made by making use of the unique lines, shapes, color and seasonal variation of plants, and characteristics can be formed to match the road lamps, flower bed and dustbin through the different types of trees, blossom period and arrangement.
（6）The road greenbelt can decorate the city and foil the buildings along the road. Meanwhile, it can satisfy the residents living in the high rise buildings who want greenbelt.
To sum up, the project will increase the beauty of the city and make people feel comfortable when it is completed.
2. Sub-project of Huaishang District
The construction of the project may make the land lost people suffer some financial loss and affect the life of the residents. In addition to the adverse influence on the traffic and social security, the main influence the construction of the project brings to the social economy is the positive social economic benefits like promoting the economic growth and driving the development of the industry.
（1）The construction of the project requires the participation of the design institute, construction company, architecture company, transporting company, and construction material supplier. In addition, large number of construction workers should be employed, to whom living materials and social services should be provided. All of the work will provide more employment to the place and bring income to the companies, enterprises and the majority labor workers, thus promoting the development of the national economy.
（2）The project will play an important part in the social development and progress of Huaishang District after it is completed, which beautifies the environment, improves the living condition and health of people, brings investment, promotes stability and solidarity, has good social effects and lead the economic prosperity of the surrounding area.
（3）When the project is completed, the place where the project locates will provide the guarantee of flood prevention and good living environment. There will be good place for the citizen to have intimacy with the nature.
（4）Due to the large amount of investment on the project, the demand for materials. is increased, thus the production of related enterprises can be increased for producing the required construction materials like steel, building material and cement, which will be purchased at local area. Bengbu City and the surrounding enterprises will benefit from that.
（5）Since the construction of the project requires large number of labor workers, there will be more job opportunity and the income of the local people will be increased.
3. Sub-project of Guzhen County
The project will greatly enhance the flood control and prevention capacity of Guzhen County through works like reinforcing the embankment, dredging the drainage canals and building (rebuilding) the flood drainage station. The rate of the urban sewage collection is increased through the building of urban sewage network. And through the building of the main sewage pipe at the source place of drinkable water, the water at the water supply points of the urban water supply company in the planning can be prevented from being polluted, thus enhancing the operation condition of the urban water supply company. The remarkable social benefits the project brings to include the following:
（1）The increase of sewage collection rate creates a better living condition for the people of Guzhen County
At present, since the urban drainage system of Guzhen County is in confusion, furthermore, the drainage of most of the places is made separately; the quality of the water environment in the city is bad. After cleaning and control, most of the urban places will be covered into the urban drainage system, thus promoting the level of city infrastructure construction.
（2）Strengthening the protection of the source place of drinkable water to create advantageous condition for finding new water source.
At present, the water used by the people of Guzhen County is sourced from the underground water. The over exploration of underground water will cause the sink of stratum, due to which most of the places of China are looking for new water sources and it has become a trend that the surface water which meets the standard of drinkable water is adopted as the drinkable water. Currently, the water quality of the drinkable water source place can not meet the surface water standard of Type Ⅱ yet and the chief reason for this is the sewage discharged from the residential area and enterprises of the northwest part of the city deteriorates the water. The project will have the sewage of this area be led into the urban drainage system, thus improving the water quality of the water source and making the water source usable for the water supply company.
（3）Improving the landscape environment along the banks of the Sanba River and promoting the city image and living environment
The Sanba River is one artificially excavated riverway, which has been used as the sewage discharging canal. As a river that crosses the whole county, the water environment is low in level and does not meet the requirement of urban landscape. As the developing of the urban area, part of the residential district has been built or planned to be built along the banks of the river, and the requirement on the river landscape is higher and higher. After the rebuilding of the main sewage pipe network, most of the sewage in the urban area will not be discharged directly into the Sanba River, instead it is delivered through the sewage pipe to the waste water treatment plant(under construction), thereby the pollution of the Sanba River can be stopped to some extent and the biological self purification work of the river can be resumed, thus Guzhen can have a clean the Sanba River again. Along the banks of the Sanba River, slope protection work will be conduction, which will improve the landscape of the river further. The rebuilt banks of the Sanba River will be a good place for people to have recreation.
（4）The construction of project requires labor force and there will be more opportunities of employment
This project involves much in range, extends long in distance and requires large number of labor force for the construction. Because of this, the unemployment situation of this place can be relieved to some extent and the income of the local people will be increased.
（5）Enhance the overall urban construction level and it will be good for attracting investment
Anhui Province, as the undeveloped place in economy, is far behind the coastal cities and other developed area in urban construction level, especially some small counties. The progress of urban construction is slow as the main industry of this area is agriculture. Through this flood prevention and the comprehensive control of environment, the infrastructure will be perfected and the urban construction will be enhanced greatly, thus advantageous condition is created for attracting investment.
（6）The improvement of flood prevention capacity will mitigate the influence of the natural disaster
The area along the Huaihe River of Anhui is the place where flood happens frequently and suffers economic loss incurred by the flood every year. Its special geological location is one of the reasons for this. But the loss can be avoided to the most by improving the flood prevention capacity. This project promote the urban flood prevention work to the standard that is able to meet the flood happening with a frequency of every 20years, the drainage of built urban area to the standard that is able to meet the flood happening with a frequency of every 10 years and the drainage ditch with the frequency of every 5 years. The improving of the flood prevention and control standard will mitigate the influence flood brings to the people and thus the people can have a safer living environment.
4. Sub-project of Wuhe County
This project will greatly enhance the water quality and sewage treatment ability of the industrial zone of Mohekou Town, improve the quality of the drinkable water supplied to the people of Mohekou Town, increase the infrastructure and promote the living standard through environment control and building pipe network, water purification plant and waste water treatment plant. The social influences brought by this project mainly include as follows:
1．Social Benefits
（1）Create better living conditions for people
It makes the tap water supply be available in the rural area and the life of people become more convenient. The water environment of creeks and canals in rural area is improved after treating the waste water. The quality of the treated water is qualified enough for the agricultural production and thus the earnings of agriculture can be increased.
（2）It is favorable for the development of commercial trade of the industrial zone
The imperfection of the current infrastructure of the place where the project locates restricts the development of commercial trades and affects the enthusiasm of the investors seriously. The implementation of the project will perfect the infrastructure, improve the investing environment, attract more investment, strengthen the confidence of the investors and promote the development of the commercial trade forcefully in surrounding area.
（3）The construction of the project requires large amount of investment, increases the demand for materials and can bring along the production of the enterprises
Most of the materials required by the construction like steel, building materials and cement will be purchase in local place. Bengbu City and the surrounding enterprises will benefit from that.
（4）The construction of the project requires labor force and there will be more employment opportunities, thus relieving the unemployment pressure.
The construction of the whole project is planned to be conducted stage by stage, and the construction period will last 5 years, during which large number of labor force will be required, and thus the unemployment pressure will be relieved.
（5）The waste water treatment system reduces the facility and operation cost of waste water treatment of each enterprise, which is good for the construction and development of the industrial zone.
2．Adverse Social Influence
Although this project is made for improving environment, the implementation of it will also bring some adverse influences：
（1）After the waste water is controlled and treated, the enterprises will have to pay the added cost for waste discharge and water supply. The cost of production is increased.
（2）The cost of tap water is increased and the living expense of the residents is increased
(3) If the peasants abandon agricultural work and start new work without receiving sufficient vocational training in advance, it might be difficult for them to find a job. If they stay unemployed for long, there will be risks for social security.
13. Conclusions and Recommendations
1. Conclusions
1. Overall conclusion
1. Project summarize
Located in the middle and lower reaches of the Huaihe River Basin, Bengbu is an important industrial city and surface transport hub, but over the years by the Huaihe River flood discharge in the flood season, flood is frequent and the economy has suffered huge losses. Agricultural production and urban development have been affected to some extent and constrained.
Bengbu City is planning to use the World Bank loan for urban flood control projects and ecological construction. The project is divided into eight sub-projects, namely :
1. "Urban drainage system and drainage pumping station construction project"
2. "Tianhe flood prevention and control project"
3. "Xijiagou flood prevention management and environmental improvement projects"
4. "Longzi Lake flood prevention and waterlogging control and environmental improvement project"
5. "Huaishang District flood prevention and waterlogging control and the urban environmental infrastructure improvement project"
6. "Guzhen County flood prevention and ecological environment project"
7. "Huaiyuan County flood prevention and ecological projects"
8. "Wuhe County flood prevention and ecological projects"
Such as major construction projects involve, water projects such as the dredging of drainage pumping stations, flood control ditches and waterlogging drainage and so on. ecological control projects such as sewage pipe network, rain water pipe network, roads and bridges and other infrastructure projects, Longzi Lake dredging, ditches slope green and the restoration of vegetation and so on.
Regions in construction projects include urban Bengbu, Huaishang District, Wuhe county Mo river estuary town, Huaiyuan County Chengguan Town, Grain and Oil processing district, Guzhen Town and the outskirts of the city.
Total project investment is 1.66 billion yuan. The construction period is five years, and the entire project is to be completed in 2012 and put into use.
2. Environmental background of Bengbu
Ambient air quality is at level 2 in Bengbu City. The main rivers in this area include Huaihe River, Huihe River, Wohe River, Huaihong New River, Cihuai New River, Beifei River and Mochong Diversion. Surface water bodies of the city are mainly the Tianhe River Longzi Lake, Zhanggongshan Pond, Xijiagou, and Baligou and so on.
The function of water body of Huaihe River in Bengbu is Class III. Water function of the Huihe River, simultaneously, and other tributaries of the river flow is Class III or IV category. Tianhe River water function is Class III, and Longzi Lake for the status quo is IV.
Bengbu City drinking water is from the Huaihe River. The inlets is 200 meters up the Bengbu sluice. It has one surface water factory with water scale of 400,000 tons / day, and the status quo of the northern Huaihe River bank is that groundwater is the main source for supply water.
The city has one sewage treatment plant at the west side of Xijiagou, with designed scale of 200,000 tons / day, and now it is in normal operation of 100,000 tons/day.
The old urban area of Bengbu has been formed stormwater drainage system for sewage diversion system, but in western city Baligou area, the eastern area of Longzi Lake in eastern city and southwestern region of the city have not yet formed drainage network. Rain drains into the river through surface water body and ditches in the end.
Now city drainage in Bengbu urban area is mainly through drainage pumping stations and from the natural drains at the shore of the Huaihe River, However, the flood water level in the Huaihe River is relatively high in the flood time, making Bengbu City water can not be discharged. If there is a storm season, necessarily it leads to severe waterlogging. So to improve the drainage capacity drainage pumping stations is very necessary.
The other hand, the city of Bengbu has a large distribution of ditches and pond, and it is a natural way to use them for flood and waterlogging control, but because of serious pond sediment their storage capacity led to a massive reduction, witch is a disadvantage for flood control to reduce disasters. So when building drainage pumping station, the main canals and lakes dredging to improve the City Flood Control and Drainage capacity is extremely beneficial at the same time.
According to the Bengbu City's overall development plan and the "11th Five-Year" plan for environmental protection objectives, in 2010 it will achieve the urban sewage treatment rate to reach 70%. This sets higher requirements for city sewer network construction. The status quo of Bengbu urban sewage collection rate is about 70%, but the sewerage treatment rate is less than 30%. As building of a sewage pipe network at the same time supporting the building of a sewage treatment plant is imperative. It is the base to increase the rate of sewage treatment, to effectively control the total discharge of pollutants, and to achieve environmental benefits.
3. Project Construction Impact Analysis Conclusion
• υ Project Construction Period
1. Construction noise is concluded basically in the construction industry plants within 100 meters. In this context the environmentally sensitive point and environmental protected targets will be affected by some noise to some extent.
2. Construction dust affected area will be within the 100 meters in the leeward area, after 4-5 times of the sprinkling a day, dust affected area will decrease within 50 meters.
3. Construction wastewater includes construction operations wastewater and living wastewater of builders in the construction area. Improper disposal of the surrounding water will cause pollution to the near water body, and in turn have adverse environmental impacts to the Huaihe river water. After sedimentation through sedimentation tanks set up at the construction site, the supernatant of construction work wastewater can be collected as dust sprinkler water and for construction techniques using, making the best to minimize outside water. Wastewater with sludge at the scene shall be not disposed arbitrarily and into neighboring channels, lakes and other water bodies. It can’t be discharged into the municipal drainage channels. Wastewater should be subject to municipal departments to process, or shipped to the disposal site assigned by the municipal departments. Integrated sewage water treatment equipment should be installed to treat the living wastewater in the, which can be disposed after treatment.
In principle, when having construction in the urban areas, towns, the wastewater of construction should be treated by sedimentation and then is discharged into municipal sewers, but no wastewater with sludge in it. In the uncompleted construction zone in rural or suburban area without such kind of sewers, construction wastewater must be grease trapped by precipitation and reach the discharging standard, then it can be discharged into the water body where allows the discharge water or sewers.
4. In accordance with the provisions related to environmental protection, various kind of Class III water wastewater must be treated to meet primary standard of Integrated Wastewater Discharge Standard before into Huaihe River. Into the Wohe River, Huihe River and stream tributaries of the Huaihe River, the sewage must be treated to secondary class emission standards. The waste water discharge standards and the means of discharging are in strict in accordance with the requirements of environmental protection departments for the implementation of the relevant provisions. According to the Municipal Environmental Protection Bureau, Tianhe Ricer, as Bengbu City emergency source of drinking water, no any sewage and wastewater can be discharged into it. Remnant water of the yard for Longzi Lake dredging should reach primary standard of Integrated Wastewater Discharge Standard.
5. Major water pollutants of the yard for Longzi Lake dredging are ammonia nitrogen and the SS. To make the yard remnant water reach the discharge standards, effective measures must be taken to decrease the concentration of the pollutants in the water, and it is proposed to increase the water retention time, increase coagulant and use other kind of methods.
6. The sludge dredged from lakes and ditches pond will not only occupy large tracts of land, but also make the groundwater and surface water polluted. Sludge disposal ways are closely related to its components. By monitoring various urban and suburban sewers and lake sediment sludge, the EIA content get to find that the contents of all urban Bengbu pond sediments are close the same. And the heavy metals in the sludge were not overweight, and meet the "soil environmental quality standards" and "agricultural sludge pollution control standards", but because of no comprehensive monitoring indicators, without excluding the results of chance, it is not entirely proven that the sludge is harmless. In order to avoid farmland and crops pollution, thus endangering the health of the population, it is not recommended for dredged sludge to be discharged into agricultural land in this EIA. After being dried naturally sludge can be back for woodland, green belt, mountain habitat sculpture made, or can be used as backfill for the site formation.
Xijiagou accepts wastewater for a long period because of the sewage it accepted, most of which are industrial wastewater and sediment complex. Although it dose not exceed the third class standards of Soil Environmental Quality, the sludge has higher mercury content which is higher than the soil background values of Anhui province 2.2-2.9 times. Together with large amount of organic ingredients, which can easily lead stench, it is not appropriate to be used in human crowd and frequent contacting region. It is best to make them digest in the region themselves. Once it is used as roadside greening purposes, it is better to try to make the project earthwork balance and avoid disposing outside.
• υ Project Operation Period
In the project running period, major pollutions include the running noise from drainage pumping stations, road and bridge traffic noise and car exhaust pollution, and tail water from Mohekou town sewage treatment plant, sewage plant odors, and the remaining sludge disposal and so on.
1. When the pump station is completed, it will be in short-term use instead of in continuous use, and generally is needed only when it is in flood period. The impact area of pumping station operating noise should be controlled in the first class type by the implementation of the Regional Environmental Noise Standards" (night 45dB (A), daytime 55 dB (A)) for the 220 meters at night, daytime 70 meters. In this context the environmentally sensitive point and environmental targets will be affected to some extent.
2. The proposed road noise impact is closely related to road traffic, road grading, day-traffic flow and model rate of traffic. In this project, roads only have the total traffic flow, not related to day and night and no model rate, so it is not possible to make environmental impact analysis for the proposed road traffic noise and vehicle exhaust.
According to information analogy, usually red line width of 40 meters in the city roads, its noise impact on the road outside the red line is 50 meters on day time, and 150 meters at night. Automobile exhaust pollution impact on the hard shoulder outside is within 20 meters.
3. In the Mohekou Industry Park area surface water factory operation period, the noise impact distance is within 10 meters from the production structures and in the water purification plant the noise emission meet the standards. Sludge production is 9 tons / day, the moisture content is 80%, and the main part of the sludge from the water purification process is silt and flocculants, which part can be considered as fertilizer for farm.
4. In the Mohekou sewage treatment plant operation period, sludge production is 14.3 tons and water content is 80%. For the high proportion of industry wastewater in the water treated by Mohekou sewage treatment plant, most of them are fine chemical industry wastewater, so sewage treatment plant the residual sludge is complex and is more likely to contain harmful toxic substances and heavy metals pollution. The EIA recommend that the park's sewage plant sludge should be shipped to the city landfill for disposal harmless, no return for farmland and drains green slope to prevent pollution of soil and groundwater.
Smelly materials from the sewage plant are mainly H2S and NH3. The impact distance is 200m.
Emissions of tail sewage plant water implements Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002) in a first class A standard, through Sanpu Lake drainage stations diversion canal into the Huaihe River. From the predicted results of the environmental impact, we can see that COD concentration of water in outfall 200m downstream can meet the features standard requirements of water environment. COD concentration at downstream 1300m place can be achieved background concentration. Tail water from Sewage treatment plants of Mohekou into the river, can cause water pollution of the Huaihe River at sewage outfall downstream of 1300m.
4. Project Environmental Benefits
The major environmental benefits of this project reflect in the volume of emissions control to the Huaihe River, and the environmental benefits created by Mohekou Park sewage treatment plant.
1. According to 2005 statistics, in 2005 the total Bengbu City sewage is about 141.47 million tons / year. Urban sewage treatment capacity is 25.55 million tons and industrial waste water treatment capacity is 16.89 million tons. The concentrated sewage treatment rate is about 30% and the ratio of domestic wastewater to industrial wastewater is 3:2.
In Bengbu City, sewage water is mainly emitted through 7urban sewage outfalls. In 2005 total outfall drainage of seven major is 107.74 million tons / year, in which Xijiagou, LongZi Lake, Baligou displacement are the biggest one. In the western city Xijiagou, Baligou accept the industrial waste easily. In the eastern city Longzi Lake accept living sewage water mainly. The local sewage pipe network has basically taken shape between Xijiagou and the Longzi Lake, but it is in the lack of network connectivity. The network has not yet matured between east of Baligou and west of Longzi Lake, and the project of urban drainage works will focus on the region to build pipe network and the renovation and expansion of convergence. The pipe network construction in the Longzi Lake industrial park, new high-tech zones and part of uncompleted pie network is to raise Bengbu City sewage water collection rates.
Now, in Bengbu City, only Xijiagou area has the No.1 Sewage Treatment Plant, so industrial and domestic sewage effluent in Xijiagou area are basically treated in the sewage treatment plants and then drained to Xijiagou, although Xijiagou area has the largest sewage, a lower concentration of pollutants is showed in the water. Discharge in Longzi Lake and Jiaotong Road area is less than Xijiagou, however, it has the higher concentration of the pollutants. Drainage network in Baojiagou area has not yet formed. Sewage collected by the natural drains is extremely limited, but at the same time its wastewater pollutant concentration is relatively high, showing that perfect urban sewage pipe network construction is very necessary.
The project, when completed, will make an interface and adjustments to the status quo relatively fragmented drainage system. According to the plan, in 2010, it will create a more focused drainage system.
2. According to Bengbu city development planning and drainage plans, By 2010, Bengbu City's sewerage system will have been divided into four drainage system, which includes Xijiagou sewage system, Yangtaizi sewage system, northern Huaishang River sewage system, and south city sewage systems as a network. The total sewage can get to 494,100 m3/d. These sewage treatment plants will be completed in 2010 and put into use. South City Sewage Treatment Plant is has been planned to be built in 2020, but in order to be in line with the construction of World Bank's project, South City wastewater treatment plant will be completed in 2012.
Without matching increase in the sewage treatment plant construction after city drainage projects completed, the increasing in sewage and the concentration of outfalls may lead to the pollution discharged into the river much higher than the total volume of emissions in 2005 and to the adverse environmental impact in the river water. According to the EIA forecast in the near future if only to maintain the status quo Xijiagou 100,000 tons / day of processing capacity before 2,010, then, in 2010, with an increase to the amount of waste water, it will get to 1.68 times higher than in 2005 while the pollutants discharged into the river COD and ammonia emissions will rise to the 1.87 and 1.80 times to the status quo in 2005 respectively.
If in 2010 the planned Xijiagou sewage plant is to be completed 200,000 tons / day, Yangtaizi sewage plant 100,000 tons / day, North Huaishanghe sewage plant on a 25,000 ton / day, and they are in a full operation, in 2010 the sewage volume is 70% increase compared to 2005. The pollutants discharged into the river COD emissions will be basically the same to the status quo in 2005 on the total amount (increased by only 6.2 %), and ammonia emissions will decrease by 9.3% compared to 2005.
According to the EIA forecast, in 2010 if all the planning sewage plants will be completed and put into use, urban sewage can all be treated effectively, then the influenced distance of Bengbu City sewage into the river is within 2.4km from the Mohekou section downstream (32.5km downstream from Bengbu sluice), and the quality of the Huaihe River will be under control in the scope of Bengbu area. The forecast results indicate that if each sewage plant can ensure the emissions standards, the increase in the volume of sewage discharge will not have environment obvious adverse effects to the river downstream water.
If accident emissions happen in the sewage treatment plant, it will increase the river's pollution levels and risks. According to the forecast, if sewage treatment plant can not get an effective sewage treatment, up to standard, the COD pollution influence will be increased from Mohekou section to 57km downstream water (87km downstream from Bengbu sluice). Ammonia pollution from the estuary will be increased from Mohekou section to 67km downstream. (107km downstream from Bengbu sluice). It visibly will have significant impact on the lower reaches of the Huaihe River.
In summary, the city pipeline project with the construction of sewage treatment work, is the basic way to achieve the fundamental environmental benefits.
3. In the Mohekou Park sewage treatment plant project, the increase of strength of Mohekou town park construction and attraction of investment will make estuary town of sewage rapidly increase in the planning year. The wastewater collected by the pipe network and discharged into the river will increase the receiving volume of Huaihe River. So the park's sewage plant construction operation is bound to reduce the pollutants discharged into the river total. According to the EIA accounting of the park's sewage plant, pollutant abatement proportion of the total COD reduction is 50%, and ammonia reduction is 66.7%. Tail water Mohekou sewage plant discharges into the Huaihe River will lead a certain degree of pollution from the outfall to the downstream 1300m within the scope of the Huaihe River water.
2. Program evaluation findings
1. City drainage Project
Regional distribution of construction is in Bengbu the Old City, high-tech zones, Dragon Seed Lakes Industrial Park. The main contents of the building include 4 pump stations, rain sewage pipe network and three sewage upgrade pump stations, and the new district road as the three parts of the contents. The total project investment is 388.9387 million yuan, and the construction period is four years, in preparation for full operation in 2012。
The status of Bengbu urban stormwater drainage is through various drainage ditches and with the surrounding surface water bodies into Huaihe River. While the drainage system in old city district was basically completed, but there are still some sections of connectivity which is not complete, therefore, it is necessary to connect the stormwater drainages in these sections with the pipeline network to form a complete drainage system. So that part of the contents of construction is basically renovation and expansion project. The pipelines dispersed widely, so the project work is not large, but due to many environmentally sensitive points in this construction period, the impact construction is heavy.
The proposed high-tech development zones and Longzi Lake Park stormwater pipeline are new projects. The meaning of the construction is to collect the wastewater from west Longzi Lake area and west Baligou area in high-tech zones into the southern city sewerage system of sewage. In the long-term management of wastewater plan, this part of wastewater collected from network will enter the planning southern city sewage treatment plant, which makes a fundamental condition for achieving long-term goal sewage treatment rate reaching 70%.
The proposed four drainage pumping stations project is basically renovation and expansion projects. The plans is the original pump station expansion alterations or upgrading of equipment to improve its drainage capacity for flood control, strengthening old Bengbu City flood season safety. In the Longzi Lake Park, high-tech zones in the region, roads and the construction of pipelines are basically new projects, and it mainly improves the infrastructure construction of the area.
The main influence in the construction period is the construction noise and construction dust. Dust from the impact of the construction is 100 meters outside of the construction border. Through frequent watering it can affect the impact scope and makes it within 50 meters. The influence distance of construction noise is within100 meters from the outside of construction factory site on daytime. Construction spoil should be backfilling in priority. Once it is used as roadside greening purposes, it is better to try to make the project earthwork balance and avoid disposing outside.
When projects completed and put into operation, the main environmental problem is draining the running noise impact and the influenced distance is 70 meters for daytime, and night of 220 meters. In this context the environmentally sensitive point and environmental protected targets will be affected by some noise to some extent.
Major solid waste in the operation period is from the waterlogging pump station gate residue. Each year about 3,000 tons drainage station gate slag will be produced. Part of the gate residue will be handed over to sanitation departments and treated together with living garbage.
Under the condition of strengthening construction management and the implementation of environmental protection measures, the project of building will lead little impact to the surrounding environment. Major social benefits of the construction projects are perfecting environment for infrastructure construction, improving drainage capacity in the urban area, the promotion of high-tech zones and Longzi Lake Park on the overall development, enhancing the city's flood control and drainage resilience capacity, and improving the living quality of city residents for the realization of long-term overall planning, environmental planning objectives of 11th Five-Year Plan to lay a solid foundation.
2. Tianhe drainage station construction project
• υ Analysis of impact in the construction period
Pollutants emitted are mainly concentrated in the construction period. The water pollutants include living sewage and manufacturing wastewater (oily waste water, sludge and waste water drainage pit) in the construction area. the main pollutants in domestic sewage is COD and its highest emissions is 20 tons / day. The main pollutants in manufacturing wastewater is the SS. Atmospheric pollutants are mainly construction dust and construction machinery and transport vehicles’ fuel emissions, which are not quantitative intermittent emissions. The highest living garbage production is 0.34 tons / day. The source of sound environment impact is from construction machinery and transport vehicles which produce the mechanical noise. The noise is about 75 to 105dB (A) 1m near the mechanical equipment.
Wastewater of construction after precipitation is all back to the construction site as possible, reducing the volume of wastewater discharge. Construction living sewage collection should be collected together and treated in sewage treatment facilities to meet the first class emission standard and then discharged into the river. Various of construction wastewater is forbidden to be discharged into the Tianhe. As the construction period of less sewage, the treated wastewater into the river water will not cause significant adverse environmental effects.
• υ Operation Impact Analysis
In the operation period of the project, the main pollutant is Tianhe Drainage Station operating noise, which standalone operation noise is 75-85 dB (A). Wastewater discharge is produced from the Tianhe Station sewage. Solid waste discharge is mainly from Tianhe gate station slag and the lives of the workers.
In the operating period, Tianhe station operator will create noise source about 90-100dB (A), and the influenced distance is about 220 meters at night, daytime 70 meters. It will mainly have some impact to the pumping station management district workers living and working on the 80 meters northeast pumping station some. The neighboring villages are affected little.
In the operating period wastewater is mainly from living wastewater of workers in Tianhe wastewater pumping stations and road drainage. The volume of living wastewater is 7.65m3 / d, and it will be pretreated by septic tanks and package treatment facilities to achieve first class emission standard and then is discharged into the Huaihe River.
The main solid waste in pumping station in the operator period is the gate slag and the living garbage of workers. Gate slag production is 3,600 t / a (60% water content), in which leaves, twigs, grass, fiber and other floating objects are the main waste. The production of living garbage is 0.8t / a, solid waste will be shipped to the garbage collection and transportation systems, handled by the sanitation department.
3. Xijiagou projects
• υ Pollutant emissions
Pollutants emitted are mainly concentrated in the construction period. The water pollutants include living sewage and manufacturing wastewater (including manufacturing wastewater and the trickling water of the dredging sludge) in the construction area. The main pollutant in domestic sewage is COD and its highest emission is 50 tons / day. The main pollutants in manufacturing wastewater is the SS. Atmospheric pollutants are mainly construction dust and construction machinery and transport vehicles’ fuel emissions, which are not quantitative intermittent emissions. The discarded soil is 375000 m3 /d. The highest living garbage production is 0.25 tons / day. The source of sound environment impact is from construction machinery and transport vehicles which produce the mechanical noise. The noise is about 75 to 105dB (A) 1m near the mechanical equipment.
• υ Construction impact
The main impact is operations wastewater, excavation and dredging silt water seepage and construction living sewage on the water environment. The main pollutants in construction operations wastewater and seepage water is the SS, which is discharged into upstream of Baligou and Xijiagou rivers after the construction site settling tank. After sedimentation in septic tank, life sewage is discharged into Baligou and Xijiagou rivers. As the construction period of less sewage, the treated wastewater into the river water will not cause significant adverse environmental effects.
The major impact on the atmospheric environment in the construction period is the dust, fuel emissions and stench of sludge to the environment. The impact from construction bulldozers dust is 150m, and the road dust is 35-40m. The effect of odor is 30m from the leeward wind. Environmental protection measures can slow the impact and scope.
The impact of sound environment is from the noise of construction machinery and transport vehicles. While construction works in the factory sector meet Noise Limits for Construction Site standard, on this premise, average noise influenced distance throughout the construction phase is 100m at daytime, but it will reach 350m on piling phase.
The ecological environment affects in the construction period in the area include ground occupation, soil erosion and the impact on biological aspects. Construction area covers about 1,300 acres, of which Baligou marsh land banking project covering 840 acres. Xijiagou bulldozers project covers a total area of about 450-500 acres. If the project does not take water and soil conservation measures, the amount of soil erosion is about 860-890 tons / year. The impact of biological performance in the short run to the river is to the number of benthic organisms. The impact to the vegetation on the occupied land and construction dust falls on the leaves of the surrounding vegetation will affect their normal photosynthesis.
• υ Environmental Benefit
The environmental benefit of the operation of the project is primarily reflected in Baligou and Xijiagou water environment improvement. After quality improvement it will play a role to promote the ecosystem in a virtuous cycle. The quality improvement of Baligou and Xijiagou rivers provide the prerequisite and guarantee for the Huaihe River water quality to meet standards. After the regional environmental improvement, the urban landscape, the face of the city skyline and the surrounding environment quality will be improved significantly.
4. Longzi Lake Project
• υ Pollution Sources Analysis
The main pollutants include water pollution, air pollution, noise and solid waste created in the construction period. Water pollutants include trickle water of dredging works, about 2396m3 / d. The total volume of a small number of construction operations wastewater and construction staff living wastewater is about 25,200 tons. Atmospheric pollutants mainly include construction dust and a small number of construction machinery and transport vehicles fuel emissions. Construction machinery and transport vehicles from the mechanical noise is the main source of sound environmental impact, and 1m away from the sound source the noise value is 70-100dB (A) while these mechanical equipment running. Solid waste includes dredged sludge 1150000 m3, the building construction site residues, material and about 126 tons of daily garbage created by construction staff.
The main pollutant of the Longzi Lake in the operation of the project period during pumps running in the flood pumping station is the mechanical noise. Its stand-alone operation noise is about 75 ~ 80dB (A).
• υ Construction impact
Construction major impact is from the southern Longzi Lake for dredging and Longzi Lake Pump Station project.
Southern Longzi Lake for dredging project has the major environmental impacts of the over water discharges on water environment, stench caused to the atmospheric and environmental impact of dredging on benthic creatures. According to the EIA forecast, TN and TP influenced scope on Longzi Lake water quality is about 600m. Under normal circumstances TN and TP contribution at a distance of about 450m away from the outfall is lower than the concentration of Environmental Quality Standards for Surface Water Ⅲ-class water quality standard. Under abnormal circumstances, TN at a distance of 550m away from the outfall mouth and TP at a distance of 800m away from the water outfall, contribution to the concentration are lower than the concentration of Environmental Quality Standards for Surface Water III-class water quality standards for the relevant provisions. The influenced distance of the stench from sediment yard is about 30m. Dredging works will cause short-term benthic creature numbers decline and after the project this influence will disappear. The types and quantities of river benthos will recover gradually.
The major environmental impact of Longzi Lake Pump Station construction period is construction machinery noise, dust and wastewater of construction. Daytime construction noise impact distance is 400m, but the distance at night is affected more than 500m. Daytime and nighttime construction will make adversely affect to the Xingfu Village on the east. The impact construction dust from is about 150m. Without effective measures, a dozen households in the village near the construction site will be adversely affected. Construction of wastewater by precipitation including wastewater containing suspended solids and a small amount of oily wastewater, wastewater containing suspended solids will be discharged into the river after sedimentation treatment. Construction living sewage will be discarded into the river after treatment through the of small integrated sewage treatment plant.
• υ Impact in operation period
The major impact on the environment in the operation period is mainly the noise of operation compressor pumps and machinery of Longzi Lake pump station to the acoustic environment.
According to the most adverse forecast, the noise impact value from Longzi Lake pump station pumps to Xingfu village is 55.1 dB (A), and the noise impact value from the main pumps room is 43.1 dB (A). Because of high background noise in Xingfu village, it will lead to noise superposed overweight for Longzi Lake drainage pumping station running noise with the background noise and it will make adverse acoustic environmental impact to the Xingfu village at the east when the pump station is running. However, the pump station only is under running by the flood drainage, so the impact on the periphery of is short-term to its acoustic environment. In the actual operation, the extent and scope of the adverse impact will be less than forecast in this report.
• υ Conclusion of environmental benefits analysis
The project total investment is about 265 million yuan, of which 3.7 million is for environmental protection, about 1.40% of the total investment. This cost is main for dredging project water treatment, yard grass and environmental monitoring. After completion of the project, Longzi Lake water and the ecological environment of the lakefront will be improved, and this will increase tourism revenue, reduce economic losses flood disasters lead. Its environmental economy is obvious for enabling the land value in the surrounding area to rise.
5. Guzhen County project
• υ Project construction period
1. Ditch pond dredging and sediment transport process stench will have an impact on the surrounding environment. The process of digging in a ditch covered in the dredging project will be more obvious odor. 30m outside reaches a second level strength, a slight odor, and the stench below the limit of intensity (2.5-3.5 level). 50m outside, it is basic odorless. The dredging project on pond is mainly in the old side streets, where residents are more concentrated, and some sensitive points on pond outside are within 30 m, or even living in the ditch side. Ditch pond dredging will make them temporarily influence to a certain extent.
2. The project to build dams, flood control road construction, urban network projects such as the laying of the construction will cause dust pollution. Construction bulldozers dust in the affected areas is within 150 m. Road construction dust as unorganized sector sources, the highest concentration of it outside the border should be less than 1.0 mg/m3. Under the circumstances without sprinkler, the impact from the roadside is 50 ~ 100 m. Under the sprinkler circumstances, the impact distance is about 35 to 40 m. During the construction process, special attention is paid on the urban network construction, as most of the constructions are around city roads, and both sides of the construction site are crowded areas. In these sections of the construction process, particular attention will be paid to take measures and try to minimize dust pollution.
3. Construction noise impact on the environment is mainly in piling stage. Under the conditions to ensure that the construction site noise meets the standard, on piling stage daytime factory border outside 350m noise meets standards and the remaining phases of daytime factory border outside 80 to 100m outside noise meets the standard. The residents at a distance of 100m construction site will be affected by the construction noise, and the residents from the construction site within 350 m will be influenced by construction noise on piling phase.
4. The solid waste including: sludge dredging garbage, sediment for the ponds, the earth in the process of dredging ditches, the earth of excavation, the roots, aggregates and so on; The abandoned building materials at the pumping station renovation; The material loss in the process of transporting materials, including gravel, concrete, etc.; And the loss and desertion of paving stone, ash, construction materials in the road dressing stage.
The total ditch pond dredging is about 30,000m3, and the landfill site is located in the eastern town near the sulfuric acid plant, about 2.5 km from the Niushi Alley. The landfill was put into use in 2002, disposing of 150 t life solid waste.
The total river dredging earthwork excavation volume is 273,400m3, planning for local channels slope reinforcement. There is little impact on the environment for none outside earthwork in the entire dredging process.
Construction living garbage production is 1.5 t/d, timely delivery of sanitation sector to designated locations for disposal.
5. During the construction, site cleaning, pipeline laying, concrete modulation, construction and implementation of the installation works, will bring a certain amount of water and construction abandoned water. But the sub-item sewage emission is little.
6. Soil erosion analysis of the item
Possible soil erosion of the main construction phase is in the process of excavation for laying the ground pipeline, and bulldozers dredging. However, due to the implementation of the project belonging to plain areas, soil erosion is unlikely.
7. Traffic impact
Construction impact on the traffic is mainly on the impact of road traffic. Pipeline road construction to break road will lead to obstruct traffic, the earth moving stow obstruct traffic, and transport vehicles lead to the road traffic increases.
• υ Operation Period
The main adversely affect in the operation period to the environment is the main drainage pump station noise and flood the roads wastewater.
1. Noise of pumping stations
The nearest environmentally sensitive point to the pumping station is the small furniture factory 10m east of Guxi drainage pump station. 10m from the pump station the noise has attenuated to have 40 to 45 dB (A), below the Measuring Method of Environmental Noise of Urban Area (GB - 1993) daytime 50 dB (A) the standard value, also reaches the night of 45 dB (A) of the standard value.
2. Flood road wastewater
The total discharge volume of pollutants in the surface water of the four flood dike roads, Huihe left embankment road, the Jiegou road, LiuYuangangou road and the Sanba river right embankment road are: COD 47.74 kg / d, BOD5 8.68 kg / d, oil 0.87 kg / d, SS 121.53 kg / d, TP 0.36 kg / d, TN 1.31 kg / d.
6. Huaiyuan County project
1. The project, when completed, vehicle emission pollutants of Chengguan town where it is foodstuff processing base is more than those of no project. This is mainly because the construction of road for foodstuff processing base from scratch, and the total length of road is 15000m and lead to increasing pollution load. However, by the analysis on the whole project, its overall benefits after completion is obviously greater than its environmental issues. Besides, automobile exhaust can also be reduced by taking other environmental measures such as restricting the traffic volume and driving speed, and planting green plants.
2. The road works project of Chengguan Town, one of thefoodstuff processing bases, can greatly enhance its traffic capacity and promote the development of public transport, save people’s traveling time, and help its promotion in economy as an industrial zone.
3. The City drainage Project on storm will clear the sludge from the flood discharge ditch and water storage ponds. At the same time distribution network will be improved, drainage pumping station will be new built or extended, as to integrated the city's drainage system and raise the city's overall flood control drainage capabilities. Therefore it can improve the environment of flood controlling ditches and water storage ponds, and reduce the threat level of flood damage to the city and the public. Although the drainage pumping stations will produce some noise when in operation, the affected area by the noise is small and can meet emission standards by damping and noise isolation protective measures.
4. There will build green belts on both sides of the road to the foodstuff processing base. While in the projects of the Luotuo Ridge and the pond in Chinese medicine Hospital there are the vegetation restoration work. So the whole project will increase the city green space for Huaiyuan County and thus improve the city's ecological environment, reduce the exposed soil of the area, improve the water conservation capacity, beautify of the urban landscape and increase urbanization speed and the people's living standards.
5. in the construction period, the engineering will occupy urban green land, and the construction dust, noise and so on will have adverse impact on urban social and ecological environment, air quality and noise at varying degrees. Therefore the evaluation here has suggested comprehensive measures for pollution control in the construction period. As long as managing strictly, taking prevention and mitigation measures, environmental impacts in the construction can be reduced minimal. Impacts in the construction period are temporary, most of the environment factors can be restored to the status quo level after the construction period ends.
6. In this project, public participation is serious and viable. Participants are all involved in voluntary. Public participation and the scope of the information in the media disclosed has provided the city public especially the affected agencies a convenient way to be aware of the project, and at the same time provided a good channel to know the demand of the public particularly the affected public's. In the public participation process, 100% of the public on this project are in a supportive attitude, which fully express the desire of improving public transport current status. The public has also fully realized the project possible environmental issues in the periods of construction and operation.
7. To ensure effective control and mitigation of the project’s environmental impact, in construction and operation phase it is necessary to do environmental management and monitoring s standardized and scientifically. Strictly implement the environmental monitoring program in the construction and the operation stage, and environmental management measures, and accomplish the environmental training to the corresponding staff.
In summary, the construction of urban transport projects and flood control, drainage projects in Huaiyuan County with the World Bank loan works with a master development plan. The implementation of the project will play a positive role on the city's rapid developments .The environment impact of the project in the construction period will be temporary. In the operation period, the flood prevention project has no environmental impact. While the pumping stations and traffic to the foodstuff processing base will have some impact on the surrounding environment. Through the corresponding mitigation measures, it can be reduced to an acceptable level. Therefore, as long as the project strictly implement the environmental protection measures in the EIA report during the construction and the operation period, this project is feasible.
7. The Huaishang District project
• υ Pollution Source Analysis
1. The wastewater in the construction process includes production wastewater and the constructors’ sewage. Constructors’ sewage production is 65 tons/d at most. The main pollution sources is atmospheric dust of the construction, machinery fuel emissions. The affected area is the construction site and along the road of transportation. The construction noise is from the pumping station, the road excavator, grader, roller, concrete layer machines used in road engineering. The construction solid wastes include construction debris, trashed soil in the construction site, silt and the constructors’ garbage.
2. In operation period, environmental pollution mainly comes from the running noise of the drainage pumping stations at Beifei River, gate slag at the station and the living garbage of the workers. Gate slag production is 6,500 t / a (moisture content of 80% -85%). Garbage, the production of 0.8t / a, is to be transported to garbage collection system, and to be dealt with by the Environmental sanitation department.
The main pollution of roads in operation comes mainly from car exhaust emissions, whose main ingredients are hydrocarbons, NOx, CO, vehicles noise, rain water pollution caused by road ground runoff.
• υ Environmental Impact in the construction period
1. Construction dust is generally within scope of 100m to dust sources under wind direction. Sprinkler 4 ~ 5 times every day at the construction site conditions, its dust pollution scope can be reduced by the distance to 20 ~ 50m range.
2. At the construction site the main pollutant of the wastewater is SS. The proposed treatment method is natural precipitation, as to reuse the water for dust suppression sprinklers and concrete water conservation at the construction site. A small amount of wastewater unable to reuse will be discharged into a nearby water body after precipitation and meeting the emission standards. The sewage in Construction period is treated by small integration biochemical sewage treatment equipment. If it is directly discharged into the Huaihe River, it must meet Integrated Wastewater Discharge Standard of standard requirements of level 1.
3. The environmental impact of the construction noise is mainly piling stage. Ensure that noise at the construction boundary has met the standards. While at piling intervals, noise at 350m during daytime to the construction boundary should meet the standards, it is 80-100m outside the boundary during all the other stages. At a distance of 100m outside the construction site the residents will be influenced by the construction noise, while at a distance of 350m outside the construction site the residents will be influenced by the piling noise.
4. In the construction site, trashed silt and garbage are collected and handled by the environment sanitation department. It is prohibited to pile them in the coastal water bodies, to contaminate of groundwater and surface water body.
• υ Impacts in Operation
1. When Roads are built and used, moving vehicles exhaust pollutant emissions of major pollutants for CO, NOx, CH. The affected distance is 20m to the road.
2. The main pollutants in road rainwater are SS, COD. Their concentration of pollutants reaches the maximum in the 0 to 15 minutes, and then reduced gradually. The water quality stabilized after an hour of raining. Therefore road rainwater collection system should be enhanced to avoid the surrounding water pollution risk.
3. When the Pump Station starts in flood season, noise at the distance of 10m is about 55dB, meets standard Class 2of Measuring Method of Environmental Noise of Urban Area (GB - 1993). For new roads, noise affected distance is 30 m outside the red line of the road.
4. In the operation period of drainage stations the total amount of the gate slag 6,500 t / year (moisture content of 80% -85%). The Staffs’ annual garbage production at the pumping station is 0.8t / a. It should be dealt with by sanitation workers.
2. Suggestions
1. Mohekou Park Project
In Mohekou Town industrial park, there are all industrial projects, and more concentrated. Without enough self-examination and park management capacity constraints, the products and most of the raw and auxiliary materials for the chemical raw materials or chemicals, inevitably leaks. It is usually a certain phenomena. In the storm season, a lot of the early rain runoff may contain a certain amount of chemical raw materials and reagents, and the production of untreated wastewater in a short period of time can not be effectively turned into the park sewage pipe network, it flow directly into the river via the overland flow, because of its complex contents and outfall near the Huaihe River, with no buffer facilities, the early part of the straight flow of rainfall into the river is more likely be water pollution risk generated.
To reduce the Mohekou water pollution in the chemical park estuary of the river and decrease the risk of pollution to a minimum, the EIA program design consideration to the early part of rainwater collection and disposal problems.
It is suggested to locate early rain buffer pool in the park, in order to conduct the initial rainwater collection and temporary storage, accordingly pipeline and the construction of rainwater collection will initially enter the sewage treatment plant for effective treatment.
Within the park, there are chemical industrial enterprises and special sewage water differs from a general sewage, water quality analysis of the sewage plant influent should be done and appropriate and effective treatment process should be introduced to ensure that the sewage plant effluent discharge standards. Taking into account of poor circumstances the effect of pretreatment enterprises, the wastewater treatment plant influent water quality and abnormal fluctuations. the Process should have some adjustments and the ability to shock.
Sewage plant tail water eventual destination is the Huaihe River. Once the sewage plant does not operate properly, tail water discharge will seriously affected the water quality of the Huaihe River. Therefore, the sewage treatment plant design recommendations consider many contingency plans, such as: water supply, electricity, water influent volume anomaly, flood control, no standby equipment failures and so on. In particular, the incident occurred when a corresponding emergency treatment measures sewage plant to reduce non-normal condition of the adverse effects of the Huaihe River.
2. Xijiagou projects
According to Bengbu City Drainage Planning (2005 ~ 2020), the project is located south of regional sewerage system. In the South Sewage Treatment Plant planning completed in 2020, Xijiagou sewage treatment plants have been operating close to capacity. Thus, when Xijiagou, Baligou river improvement project is finished, the sewage in the south of Tushan Road is still no reasonable way to proceed. Although the river training works will be completed and Baligou and Xijiagou along the outfall for money-blocking, but the film in the region of untreated sewage will continue through different channels and ultimately into the seats of Xijiagou and Baligou, eventually the Huaihe River flows. Therefore the item on water environment improvement role will be greatly reduced, would not achieve the desired results. Therefore, the construction of the Bengbu City sewage treatment plant should speed up.
The EIA projects proposed in the construction of this project, start Chengnan sewage treatment plant construction projects. When Xijiagou and Baligou river training works finishes, while wastewater treatment plant has not yet completed, temporarily wastewater in the region take a seat in Xijiagou sewage or Yangtaizi sewage disposal system.
3. Longzi Lake Project
1. Dredging should strictly control Dredging depth, avoid Dredging Project on benthic sediments and submerged plants root which will cause serious damage.
2. Revetment natural and ecological revetment combination of the Longzi Lake along the berm for dressing, avoid the use of hard revetment and cutting surface ecosystems, affecting Longzi Lake coastal ecological environment.
3. Ensure the Dredging works results to the implementation, we recommend Lake coastal wastewater emissions control from the production, for the heavily polluting enterprises move out as soon as possible.
4. After completion of this project, it is strictly prohibited random grab for aquaculture around Longzi Lake to control the impact of agricultural non-point source pollution on the water quality of Longzi Lake.
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[1] Data by the end of 2000.
[2] Environmental quality yearly report of Bengbu Municipality, .cn.
[3] Required by Huai River water functional zoning and “Pollution control plan for the eastern line of North-South Transfer Project”.
[4]
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Xintie Bridge
Bengbu Watergate
Mohekou
Bengbu Watergate
Xintie Bridge
Level of Bengbu Watergate
Proposal B
Bengbu Watergate
Xintie Bridge
Mohekou
Proposal A
Level of Bengbu Watergate
Baligou
Xijiagou
No.3 Dock
No.1 Dock
Jiaotong Road
Longzi River
Baojiagou
Statistical analysis chart of ammonia nitrogen emissions of Bengbu City pollution discharge outlets in 2005
Baligou
Xijiagou
No.3 Dock
No.1 Dock
Jiaotong Road
Longzi River
Baojiagou
Statistical analysis chart of CODcr emissions of Bengbu City pollution discharge outlets in 2005
Mohekou
Proposal C
Level of Bengbu Watergate
Level of Bengbu Watergate
Mohekou
Proposal D
Xintie Bridge
Bengbu Watergate
Bengbu Watergate
Xintie Bridge
Mohekou
Proposal A
Level of Bengbu Watergate
Level of Bengbu Watergate
Proposal B
Xintie Bridge
Bengbu Watergate
Mohekou
Proposal C
Bengbu Watergate
Xintie Bridge
Mohekou
Level of Bengbu Watergate
Mohekou
Proposal D
Xintie Bridge
Bengbu Watergate
Concentration (mg/L)
Concentration (mg/L)
Concentration (mg/L)
Concentration (mg/L)
TP Accidental discharge
TP normal emission
TN Accidental discharge
TN Normal emission
Radial Dssion
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E1699
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Public workshop in Guzhen County
Public workshop in Mohekou Town
Public workshop in Huaiyuan County
Opinion consultation at place
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