Question

what should be done before discharging village sewage water into water bodies​

Answer 1

Answer:

Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment.

Answer 2

Before discharging village sewage water into water bodies it must be treated properly.

• Several physical, chemical and biological processes need to be performed before discharging the sewage.
• First the solid particles must be removed from the sewage.
• The next step would be to remove the harmful microorganisms.
• The third step includes treating the sewage with chemicals to disinfect them.
• And finally the sewage can be discharged into water bodies.