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The sludge treatment process to increase the solid content of sludge is ___________

(a) Dewatering

(b) Thickening

(c) Conditioning

(d) Drying

I have been asked this question in examination.

I would like to ask this question from Mechanical Aeration System, Treatment of Sludge in chapter Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

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Best answer
The correct choice is (b) Thickening

The explanation is: In sludge thickening, the solid content of sewage is increased by gravity flotation and clarifier.

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