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Which of the following is the final stage in the sludge treatment process?

(a) Digestion

(b) Dewatering

(c) Drying

(d) Thickening

I had been asked this question in class test.

My question is from Mechanical Aeration System, Treatment of Sludge in portion Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

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Best answer
The correct answer is (c) Drying

Explanation: Drying of the sludge is the final stage in the sludge treatment process where the most stable form of sludge is obtained.

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