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Disinfection of drinking water, is done to remove ___________(a) odour(b) bacteria(c) turbidity(d) colourThe question was posed to me in final exam.This intriguing question comes from Water Supply, Electrical and Road Work in division Rules and Methods of Measurement of Civil Engineering Drawing

Answer»

Correct choice is (b) bacteria

The BEST explanation: Water disinfection MEANS the REMOVAL, DEACTIVATION or killing of pathogenic microorganisms. Microorganisms are destroyed or deactivated, resulting in TERMINATION of growth and reproduction. When microorganisms are not removed from drinking water, drinking water usage will cause people to fall ill.



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