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Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period.
Jun 5, 2018 · Learn how BOD measures the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter in water. Find out why BOD is important for water quality management and how it relates to dissolved oxygen concentration.
Oct 27, 2021 · Sources of BOD. Sources of biological oxygen demand include leaves and woody debris; dead plants and animals; animal manure; effluents from pulp and paper mills, wastewater treatment plants, feedlots, and food-processing plants; failing septic systems; and urban storm water runoff.
Sep 15, 2014 · BOD measures how much oxygen is needed by bacteria to break down organic matter in water. Learn how BOD is tested, why it matters for aquatic life, and what levels indicate water quality.
BOD is the amount of dissolved oxygen used by microorganisms to metabolize organic matter in water. It is a gauge of water pollution and a reason for treating wastewater before discharge.
- The Editors of Encyclopaedia Britannica
Biochemical oxygen demand (BOD) testing determines the relative oxygen requirements of wastewaters, effluents, and polluted waters. Its widest application is in measuring waste loadings to treatment plants and in evaluating a plant’s efficiency in removing BOD.
BOD is the amount of oxygen used by microbes to decompose organic matter in water. Learn how BOD measures water pollution, sewage treatment and respiration, and take a quiz on BOD.
