Which microorganisms are used for the purific | vedclass

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(B) During the secondary treatment of sewage,the primary effluent is passed into large aeration tanks. In these tanks,the effluent is constantly agita

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Heterotrophic bacteria

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(B) During the secondary treatment of sewage,the primary effluent is passed into large aeration tanks. In these tanks,the effluent is constantly agitated mechanically and air is pumped into it. This allows for the vigorous growth of useful aerobic microbes into flocs (masses of bacteria associated with fungal filaments to form mesh-like structures). These microbes are primarily heterotrophic bacteria that consume the major part of the organic matter in the effluent,thereby significantly reducing the Biochemical Oxygen Demand $(BOD)$ of the sewage.

Which microorganisms are used for the purification of sewage water?

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