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What is the correct answer?

4

Use of hydrated lime in water treatment

A. Before filtration, reduces the bacterial load on filters

B. After filtration, combats the corrosiveness of water due to the presence of O2 & CO2

C. Is to adjust the pH value

D. All (A), (B) and (C)

Correct Answer :

D. All (A), (B) and (C)


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