why is sewage water treatted untill BOD is reduced? give a reason?
BOD is a measure of the extent of pollution in water bodies. So , Greater BOD means more pollution . So Water is treated until the BOD of water gets reduced to a accepted level.
why is sewage water treatted untill BOD is reduced? give a reason?
BOD is a measure of the extent of pollution in water bodies. So , Greater BOD means more pollution . So Water is treated until the BOD of water gets reduced to a accepted level.