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_____ is the amount of oxygen required to oxidize both organic and inorganic matter in sewage.

(a) Turbidity

(b) BOD

(c) COD

(d) DO

This question was posed to me by my college director while I was bunking the class.

I would like to ask this question from Population Equivalent and Relative Stability in division Wastewater Characteristics of Environmental Engineering

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Right option is (c) COD

To explain I would say: COD is the amount of oxygen required to oxidize both organic and inorganic matter in sewage. It is always greater than BOD.

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