Disinfect Water in Sewage Treatment
CMAT 2018 · General Knowledge · Easy · General Knowledge
Which of the following gas/es is/are used to disinfect water in sewage treatment facilities?
- A.
Ozone
- B.
Chlorine
- C.
Nitrogen
- D.
Ozone and chlorine
Answer
D
Explanation
Both chlorine and ozone are commonly used as disinfectants in sewage treatment.
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