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Which method of disinfection is mainly used in rural areas?

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in Environmental Engineering by (81.4k points)
Which method of disinfection is mainly used in rural areas?

(a) Boiling method

(b) Excess lime treatment

(c) Potassium permanganate treatment

(d) Silver treatment

This question was addressed to me in homework.

I want to ask this question from Methods of Disinfection in chapter Properties of Disinfection of Environmental Engineering

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Best answer
Correct choice is (c) Potassium permanganate treatment

The best I can explain: The Potassium permanganate treatment is used in rural areas where most of the water is drawn from a well which contains the least amount of bacteria.

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