Question

Name main gases that are released from the manhole​

Answer 1

Answer:

The major components of sewer gas can include: hydrogen sulfide (H2S), carbon dioxide (CO2), methane (CH4), ammonia (NH3), biological organisms, water vapor, and other chemicals. The presence and concentra- tion of any of these components can vary with time, composition of the sewage, temperature and pH.

Answer 2

Answer:

hydrogen sulphid, carbon dioxide,methane ,ammonia

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