NEET Biology question

The purpose of biological treatment of waste water is to **[NEET 2009]**

(A)Reduce BODCorrect
(B)Increase BOD
(C)Reduce sedimentation
(D)Increase sedimentation

Answer: (A)

Solution

Biological (secondary) treatment of wastewater uses microorganisms to break down the biodegradable organic matter present, thereby reducing the water's Biochemical Oxygen Demand

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Question ID VK-130394