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The purpose of the biological treatment  of waste water is to
 

Option: 1

reduce BOD


Option: 2

increase BOD


Option: 3

increase Sedimentation
 


Option: 4

reduce Sedimentation
 


Answers (1)

best_answer

Biological Oxygen Demand is used for measuring the level of purity of water. In other words, it acts as a measure of pollution present in the wastewater. The sewage treatment plants employ this method for determining the pollution level. Hence, the correct option is (a). 

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Pankaj

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