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12.13. What do you mean by Biochemical Oxygen Demand (BOD)?
Answers (1)
Biochemical Oxygen Demand (BOD)
It is the amount of oxygen required by bacteria to decompose the organic matter present in a certain volume of the sample of water. Clean water would have a BOD value less than 5 ppm and highly polluted water could have a BOD value of 17 ppm.
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