Question

What gases are produced in anaerobic sludge digesters?

• A. Methane and $C{O}_2$
• B. Methane, hydrogen sulphide and $C{O}_2$
• C. Methane, hydrogen sulphide and $C{O}_2$
• D. Hydrogen sulphide and $C{O}_2$

Answer 1

The correct option is B

Methane, hydrogen sulphide and $C{O}_2$

Anaerobic digestion, widely used as a source of renewable energy is the process that takes place in an anaerobic sludge digester. The process produces biogas, consisting of methane, carbon dioxide and traces of hydrogen sulfide and ammonia.