Question

the waste water of a town is to be discharged into a river the quality of waste water produced per day 9milionliter liters and its BOD 250 mg/l if the discharge of the river is 225 L/S and its BOD 8mg/l find BOD resulting mix​

Answer 1

Answer:

For drinking water BOD has to be less than 5 mg/L and for treated wastewater to be disposed of in the water bodies it is 30 mg/L, 100 mg/L if treated waste water is discharged into the sewerage system in India