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What do you mean by BOD and COD? |
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Answer» COD or Chemical Oxygen Demand is the total measurement of all chemicals (organics & in-organics) in the water / waste water; BOD is a measure of the amount of oxygen that require for the bacteria to degrade the organic components present in water / waste water. The ratio of BOD/COD is about COD is higher than that of BOD; maximum of up to 4 times in medium scale industries; but it varies based on the industrial process and nature of the raw materials used; |
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