Treatment of waste-water is done by the

  • A
    Photoautotrophic microbes,naturally present in sewage
  • B
    Chemoautotrophic microbes,naturally present in sewage
  • C
    Heterotrophic microbes naturally present in sewage
  • D
    Heterotrophic microbes inoculated in the sewage from outside only

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Similar Questions

The measurement of $BOD$ (Biochemical Oxygen Demand) in wastewater provides information about the amount of which of the following?

$A$: Microbes are used in $STPs$.
$R$: $STPs$ are used to prevent water pollution.

In secondary treatment,what do bacteria remove from the primary effluent?

Biological process is carried out in which type of water treatment?

Presence of $E. coli$ in water indicates

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