The Approximate BOD Value for Raw Sewage Is

Question

The approximate BOD value for raw sewage is
A) 2000-7000 milligrams per milliliter.
B) 500-800 grams per milliliter.
C) 0-50 kilograms per milliliter.
D) 300-400 milligrams per liter.
E) 300-400 grams per liter.

Accepted Answer

The approximate BOD value for raw sewage is 300-400 milligrams per liter. BOD (Biochemical Oxygen Demand) is the amount of oxygen required by microorganisms to decompose the organic matter in water, which is used as a measure of the pollution level of the water. Raw sewage contains a high amount of organic matter and therefore has a high BOD value.