A sewage treatment process in which a part of the decomposer bacteria present in the wastes are recycled into the starting of the process is called

Cyclic treatment

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Primary treatment

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Tertiary treatment

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Activated sludge treatment

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Solution

The correct option is D
Activated sludge treatment

Activated sludge refers to a mass of microorganisms cultivated in the sewage treatment process to break down organic matter into carbon dioxide, water and other inorganic compounds. The activated sludge treatment process has three basic components- a reactor in which the microorganisms are kept in suspension, aerated and in contact with the waste they are treating, liquid-solid separation and a sludge recycling system f

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Similar questions

A step in the sewage treatment process in which a part of the decomposer bacteria present in the wastes is recycle back into the biological treatment process:

In which part of the sewage treatment process is the decomposer bacteria present in the waste recycled?

Q. Sewage treatment process in which part of decomposer bacteria is recycled into starting of the process is called.

Q. Match the items in Column A with the items in Column B:

Column A	Column B
1. Tertiary treatment	(a) Mechanical process
2. Sewers	(b) Biological process
3. Waste water	(c) Scum
4. Secondary treatment	(d) Sewage
5. Primary treatment	(e) Pipes carrying sewage
	(f) Chemical process

Q. Study the following statements and select the incorrect ones.

(i) Physical removal of large and small particles through filtration and sedimentation is called primary sewage treatment.
(ii) Secondary sewage treatment is mainly a mechanical process.
(iii) Activated sludge sediment in a sewage treatment plant is a rich source of aerobic bacteria.
(iv) Biogas, commonly called as gobar gas, is pure methane.

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