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Which of the following process is not involved in sludge thickening?

(a) Gravity thickening

(b) Vacuum filter

(c) Air flotation

(d) Centrifugation

I had been asked this question in class test.

I'd like to ask this question from Sludge Thickening, Sludge Dewatering in section Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

+2 votes
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Best answer
Right choice is (b) Vacuum filter

To explain I would say: The process involved in sludge thickening are gravity thickening, air flotation and centrifugation.

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