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Solids are removed from the wastewater by which of the following unit operation?

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in Environmental Engineering by (81.4k points)
Solids are removed from the wastewater by which of the following unit operation?

(a) Inter facial contact

(b) Solid stabilization

(c) Ion transfer

(d) Solids transfer

The question was asked in an interview.

This key question is from Types of Unit Operations in chapter Unit Operations for Wastewater Treatment, Preliminary Treatment of Environmental Engineering

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Best answer
The correct answer is (d) Solids transfer

For explanation I would say: During solids transfer, solids are removed from wastewater by straining, sedimentation, flotation and filtration.

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