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In which unit operation, gases are released or absorbed in the effluent?

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+1 vote
in Environmental Engineering by (81.4k points)
In which unit operation, gases are released or absorbed in the effluent?

(a) Gas transfer

(b) Ion transfer

(c) Solute stabilization

(d) Solids Transfer

The question was asked in a job interview.

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

1 Answer

+2 votes
by (693k points)
Correct choice is (a) Gas transfer

To explain: In Gas transfer, gases are released or absorbed in the effluent by exposing the wastewater through aeration under normal, increased or reduced pressure.

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