During sewage treatment, biogases are produced which include:

3 2013 NEET Microbes in Human WelfareSewage treatment Easy
During sewage treatment, biogases are produced which include:
A hydrogen sulphide, nitrogen, methane
B methane, hydrogen sulphide, carbon dioxide
C methane, oxygen, hydrogen sulphide
D hydrogen sulphide, methane, sulphur dioxide

Detailed Solution

During anaerobic digestion of sludge, bacteria produce a mixture of methane, hydrogen sulphide and carbon dioxide (biogas).

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