Microbes in the activated sludge form flocs and consume organic matter as food, effectively removing it from the water. The process requires aeration to provide oxygen to these aerobic microorganisms.
The activated sludge treatment is carried out by
Asked in WBCS Main Paper 4 2019 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
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