Question
Biology Question on Environmental Issues
Which one of the following is not used for disinfection of drinking water ?
A
Chlorine
B
Ozone
C
Chloramine
D
Phenyl
Answer
Phenyl
Explanation
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.