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HandWiki. Biochemical Oxygen Demand. Encyclopedia. Available online: https://encyclopedia.pub/entry/29923 (accessed on 11 September 2026).
HandWiki. Biochemical Oxygen Demand. Encyclopedia. Available at: https://encyclopedia.pub/entry/29923. Accessed September 11, 2026.
HandWiki. "Biochemical Oxygen Demand" Encyclopedia, https://encyclopedia.pub/entry/29923 (accessed September 11, 2026).
HandWiki. (2022, October 18). Biochemical Oxygen Demand. In Encyclopedia. https://encyclopedia.pub/entry/29923
HandWiki. "Biochemical Oxygen Demand." Encyclopedia. Web. 18 October, 2022.
Biochemical Oxygen Demand
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Biochemical oxygen demand (BOD) is the amount of dissolved oxygen (DO) 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. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water. BOD reduction is used as a gauge of the effectiveness of wastewater treatment plants. BOD of wastewater effluents is used to indicate the short-term impact on the oxygen levels of the receiving water. BOD analysis is similar in function to chemical oxygen demand (COD) analysis, in that both measure the amount of organic compounds in water. However, COD analysis is less specific, since it measures everything that can be chemically oxidized, rather than just levels of biologically oxidized organic matter.

chemical oxygen demand wastewater effluents biologically

References

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