The introduction of sewage into a waterbody significantly increases the amount of organic matter present. Microorganisms in the water consume this organic matter, using up dissolved oxygen in the process. This leads to an increase in the BOD.
BOD increases in a waterbody due to the increase of
Asked in WBCS Main Paper 4 2023 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
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