True of False Domestic sewage and industrial wastes act as point sources. Urban

Question

True of False Domestic sewage and industrial wastes act as point sources. Urban and agricultural waste are characterized by a single discharge point SWDA stands for the safe water drinking act. MCLs are primary standards. SMCls are mandatory. Coagulants are added in the rapid mix step of a surface water treatment plant. Fluoridation is used to reduce the number of pathogens. Hardness is defined as the sum of all polyvalent compounds. BOD, COD and TKN are principal tests for measuring pollutants in wastewater. NPDES is not required for all point source dischargers into US waters. Hydraulic detention time should be greater than mean cell retention time. Land treatment of wastewater can be useful for crop growth.

Explanation / Answer

1) True

Domestic sewage and industrial wastes act as point source because they are collected by network channels and conveyed to single point into receiving water

2) False

urban and agricultural wastes are characterized by a multiple discharge points

3) True

SDWA stands for safe drinking water act

5) False

SMCLs are not mandatory and advisory

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