Question #211313

Discuss the principle of chemical oxygen demand and biological oxygen demand. Also differentiate between them.


Expert's answer

Chemical Oxygen Demand (COD) is closely related to Biochemical Oxygen Demand (BOD), the difference being that BOD is a test of the level of organic matter that can be biologically oxidised while COD is a test of the amount of organic matter that can be chemically oxidised.


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Canada #340153 on Dec 2023