Published by:
CGP EDU Academic Team
Published on: August 21, 2026
What gases are produced in anaerobic sludge digesters?
A
Methane and 
only
only
B
Methane, Hydrogen Sulphide and 
C
Methane, Hydrogen Sulphide and 
D
Hydrogen Sulphide and 
Text Solution
Verified by ExpertsThe correct answer is:
Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen, used for industrial or domestic purposes to manage waste and/or to release energy. During anaerobic digestion, bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide. These gases form biogas.
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