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Which form of solute stabilization occurs when water passes through limestone?

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+1 vote
in Environmental Engineering by (81.4k points)
Which form of solute stabilization occurs when water passes through limestone?

(a) Chlorination

(b) Liming

(c) Re-carbonation

(d) Super-chlorination

I had been asked this question during an online interview.

My question comes from Various Unit Operations in chapter Unit Operations, Screening and Aeration of Environmental Engineering

1 Answer

+2 votes
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Best answer
Right option is (b) Liming

To elaborate: When water passes through limestone, carbon dioxide in excess get converted into soluble bicarbonate.

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