The sewage treatment units in which anaerobic decomposition of organic matter is used, are called Options: A . &nbspImhoff tanks B . &nbspTrickling filters C . &nbspSludge sedimentation tanks D . &nbspNone of these

The sewage treatment units in which anaerobic decomposition of organic matter is

Question

The sewage treatment units in which anaerobic decomposition of organic matter is used, are called

Options:

A . Imhoff tanks

B . Trickling filters

C . Sludge sedimentation tanks

D . None of these

Answer: Option B

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Question 6. In trickling filter, B.O.D. is reduced to....

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