Question

What is BOD ? Explain.

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Answer 1

Answer:

Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature. ... The decay of organic matter in water is measured as biochemical or chemical oxygen demand.

Answer 2

Answer: Biochemical oxygen demand ( BOD) is the amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.