Civil Engineering MCQAE Level Civil Engineering
Anaerobic digestion of sludge produces mainly:
Environmental EngineeringEnvironmental EngineeringHARD
Choose the correct answer
A
oxygen and ozone
B
nitrogen dioxide only
C
methane and carbon dioxide
D
chlorine and hydrogen
Correct Answer
C. methane and carbon dioxide
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Anaerobic decomposition stabilises sludge and produces biogas containing methane and carbon dioxide.
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