what is BOD and COD

Question

what is BOD and COD

Accepted Answer

BOD stands for Biochemical Oxygen Demand and COD stands for Chemical Oxygen Demand.

BOD and COD are measures of the amount of oxygen required to break down organic matter in water.
BOD measures the amount of oxygen consumed by microorganisms while breaking down organic matter.
COD measures the amount of oxygen required to oxidize organic and inorganic matter in water.
BOD is a measure of the biodegradable organic matter in water, while COD measures both biodegradable and non-biodegradable organic matter.
Both BOD and COD are important indicators of water quality and can help determine the level of pollution in water bodies.

Accepted Answer

The biochemical oxygen demand (BOD) represents the amount of dissolved oxygen (DO) consumed by biological organisms when they decompose organic matter in water. The chemical oxygen demand (COD) is the amount of oxygen consumed when the water sample is chemically oxidised.

what is BOD and COD

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