The BOD value of municipal sewage is:

1-5 ppm

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5-10 ppm

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50-100 ppm

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100-4000 ppm

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Solution

The correct option is D 100-4000 ppm
The amount of oxygen required by bacteria to break down the organic matter present in a certain volume of a sample of water, is called Biochemical Oxygen Demand (BOD). It is measured in ppm. The BOD of municipal sewage is 100-4000 ppm.

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