2006-12-12 12:34:01 · 2 answers · asked by Anonymous in Environment
BOD (biochemical oxygen demand) is a measure of the strength of wastwater. Reducing BOD in the collection system is probably best accomplished through source reduction. Most communities accomplish this through an industrial pretreatment program that limits the concentration and quantity of various constituents introduced to the sewer (BOD being one of the possible limited constituents). Once it reaches a wastewater facility, some BOD can be removed through primary sedimentation, but the majority is removed during a biological process where organisms that consume BOD are grown and allowed to eat as much BOD as they can. Well-operated facilities get the balance of organisms to food source (BOD) just right! Hope that helps!
2006-12-12 16:36:33 · answer #1 · answered by keesnbcs 3 · 1⤊ 0⤋
BOD is a measure of the amount of organic matter in waste water. It can be reduced at the source by preventing such materials from entering the waste stream.
It can be reduced in the waste handling process by filtration, settling and aerobic action.
2006-12-12 14:32:06 · answer #2 · answered by Ed 6 · 1⤊ 0⤋