what do you mean by BOD and COD
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Answer:
Biochemical oxygen demand and chemical oxygen demand
Explanation:
the microorganisms use organic matter as a food source through oxidation in which oxygen is consumed i.e that is biochemical oxygen demand
chemical oxygen demand, is a measure of the total quantity of oxygen required to oxidize all organic material into carbon dioxide and water.
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The main difference between BOD and COD is that BOD is the amount of oxygen which is consumed by bacteria while decomposing organic matter under aerobic conditions whereas COD is the amount of oxygen required for the chemical oxidation of total organic matter in water.
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