Question

the waste water of a town is to be discharged into a river the quality of waste water produced per day 9milionliter​

Answer 1

❥αηsωєя:-

Effluent is defined by the United States Environmental Protection Agency as "wastewater - treated or untreated - that flows out of a treatment plant, sewer, or industrial outfall. Generally refers to wastes discharged into surface waters". ... Effluent only refers to liquid discharge.