Definition of biochemical oxygen demand in English:
The amount of dissolved oxygen that must be present in water in order for microorganisms to decompose the organic matter in the water, used as a measure of the degree of pollution. Also called biological oxygen demand.
- Another body, the U.S. Council on Environmental Quality established five measures for judging water quality: biochemical oxygen demand, nitrogen, phosphorus, dissolved oxygen, and fecal coliform bacteria.
- Maintaining the biochemical oxygen demand, nitrogen and organic matter content of wastewater outside the limits that are favourable for mosquito breeding is very helpful.
- Gives easy to understand and clear instructions for testing dissolved oxygen, fecal coliforms, pH, biochemical oxygen demand, temperature, total phosphate, nitrates, turbidity, and total solids.
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