NEET Biology question

A sewage treatment process in which a part of the decomposer bacteria present in the waste is recycled into the starting of the process is called **[DUMET 2009]**

(A)Cyclic treatment
(B)Activated sludge treatmentCorrect
(C)Primary treatment
(D)Tertiary treatment

Answer: (B)

Solution

In activated sludge treatment, a portion of the settled sludge rich in decomposer microorganisms is recycled back into the aeration tank to inoculate incoming sewage and accelerate organic matter breakdown.

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-129991