Appendix .pa.us

Determine how many pounds of 65% calcium hypochlorite you will need to disinfect a 100 foot section of main with a diameter of 24 inches. The required dosage to disinfect the pipe is 200 mg/L. (ans = 6 lbs) “A Better Water Company” treats 1.2 MGD. The effluent chlorine dosage is 1.2 mg/L, and they are using 12.5% strength sodium hypochlorite. ................
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