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Which of the following is not used for defluoridation?

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+1 vote
in Environmental Engineering by (81.4k points)
Which of the following is not used for defluoridation?

(a) Calcium phosphate

(b) Copper sulfate

(c) Alum

(d) Bone charcoal

I have been asked this question during an internship interview.

This intriguing question originated from Fluoridation and Defluoridation topic in section Miscellaneous Treatment Methods of Environmental Engineering

1 Answer

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Best answer
The correct option is (b) Copper sulfate

Best explanation: Copper sulfate is used to remove taste, odor, color and control of algae growth and it is not used for fluoridation.

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