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Activated carbon can be applied to raw water ______ treatment process.

(a) During

(b) Ahead of

(c) Before

(d) After

This question was addressed to me in final exam.

This interesting question is from Activated Carbon Treatment topic in section Miscellaneous Treatment Methods of Environmental Engineering

1 Answer

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Best answer
Right choice is (b) Ahead of

Explanation: Activated carbon can be applied in various ways like ahead of the treatment process, in the mixing basin or after filtration. Its rate of application is high when the filter is washed.

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