What does sewage water mainly contain?

  • A
    Inorganic substances and organic substances
  • B
    Fish and microorganisms
  • C
    Organic substances and microorganisms
  • D
    Inorganic substances and animals

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What is the full form of $STPs$?

$A$: $A$ major part of the organic matter in water is consumed by chemical processes carried out by bacteria.
$R$: Microorganisms,including bacteria,consume the organic matter present in water.

Sewage water is purified by ..........

In the biological treatment of sewage,the masses of bacteria held together by fungal filaments to form mesh-like structures are called

In the sewage treatment,bacterial flocs are allowed to sediment in a settling tank. This sediment is called as

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