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Disinfection of water in our country is mainly done by ____________

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Disinfection of water in our country is mainly done by ____________

(a) Oxygenation

(b) Hydration

(c) Chlorination

(d) Filtration

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My question is based upon Wastewater Management in portion Other Major Topics in Civil Engineering of Basic Civil Engineering

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Correct answer is (c) Chlorination

Easiest explanation: Disinfection is the most inexpensive way of killing the microorganisms present in the water. The water is chlorinated and some residual chlorine of 0.5mg/litre is left so that contamination in the distribution system is taken care of.

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