Which gases are produced in anaerobic sludge digesters?
A. Methane and carbon dioxide
B. Methane, hydrogen sulphide and CO2
C. Methane, hydrogen sulphide and oxygen
D. Hydrogen sulphide and CO2
Answer:B
Which gases are produced in anaerobic sludge digesters?
A. Methane and carbon dioxide B. Methane, hydrogen sulphide and CO2 C. Methane, hydrogen sulphide and oxygen D. Hydrogen sulphide and CO2