Chemical Engineering Mcqs

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 BO

(D)  = 3.8 mg/litre

Submitted By :Ali Uppal

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