Q 29. What gases are produced in anaerobic sludge digesters? Option A Methane, hydrogen sulphide and CO2 Option B Methane, hydrogen sulphide and O2 Option C Hydrogen sulphide and CO2 Option D Methane and CO2 only - Noon Academy

Q 29. What gases are produced in anaerobic sludge digesters? Option A Methane, hydrogen sulphide and CO2 Option B Methane, hydrogen sulphide and O2 Option C Hydrogen sulphide and CO2 Option D Methane and CO2 only

Q 29. What gases are produced in anaerobic sludge digesters? Option A Methane, hydrogen sulphide and CO2 Option B Methane, hydrogen sulphide and O2 Option C Hydrogen sulphide and CO2 Option D Methane and CO2 only

Correct option: A

Solution: In anaerobic sludge digesters, the bacteria and the fungi present in the sludge are eaten or digested by the other kinds of bacteria which grow anaerobically. They produce a mixture of gases like – methane, hydrogen sulphide and carbon dioxide.

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