Question > Category > Water Purification

Q » Define biochemical oxygen demand (BOD).

John

03 Nov, 2025

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A » Biochemical Oxygen Demand (BOD) is a critical parameter in water purification, measuring the amount of dissolved oxygen needed by aerobic microorganisms to decompose organic matter in water over a specific time period. It serves as an indicator of water quality, with higher BOD values suggesting greater levels of organic pollution, thus requiring more extensive treatment to ensure the water is safe for consumption and environmental discharge.

Michael

03 Nov, 2025

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A »Biochemical oxygen demand (BOD) measures the oxygen consumed by microorganisms when breaking down organic matter in water. It's a key indicator of water quality, reflecting the level of organic pollution. Higher BOD values indicate more organic pollution, which can deplete oxygen and harm aquatic life.

David

03 Nov, 2025

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