Question

Which is the main constituent of biogas?

Answer 1

Bio-gas:

• Biogas is also called as marsh gas.
• It is a renewable source of energy.
• Biogas can be obtained from organic wastes, municipal wastes, agricultural wastes, food waste and plant materials.
• It is used in the production of electricity and in drying, cooling and heating purposes.
• It is also used as a biofuel.

Constitution:

• The primary constituent of biogas is methane.
• Biogas contains methane $(50-70\%)$, carbon dioxide $(25-50\%)$, and smaller amounts of nitrogen $(2-8\%)$ trace levels of ammonia, hydrogen sulphide and hydrogen.
• The biogas is produced by the digestion of organic waste in the anaerobic condition by bacteria.