Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Lagoons used for purification of polluted water
(A) Are large shallow artificial lakes also known as clarification lakes,
maturation ponds or oxidation ponds
(B) Use micro-organisms/bacteria in presence of dissolved oxygen
(C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series)
having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre
(D) All (A), (B) & (C)
by

1 Answer

Answer :

(D) All (A), (B) & (C)
by

Related questions

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Last Answer : (D) All (A), (B) & (C)

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