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  4. Which one of the following is not used for disinfection of drinking water ?

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Q. Which one of the following is not used for disinfection of drinking water ?

AIPMTAIPMT 2005Environmental Issues

Solution:

In a sewage efficient treatment plan (CETP) during the tertiary treatment the decreased water is chlorinated with chlorine or perchlorate salts, ozonised or irradiate with UV to kill pathogens. Phenyl is not used for disinfection of drinking water.