The main components of biogas are carbon dioxide and methane.
A major source of renewable energy, biogas is created by the breakdown of organic matter in the absence of oxygen.It is produced by the anaerobic digestion of municipal waste, farm waste, food waste,and energy crops.
In biogas,methane constitutes 50-75%, carbon dioxide constitutes 25-50%, and nitrogen constitutes 2 to 8%.It also includes trace gases including nitrous oxide and hydrogen sulphide.
Major raw materials used for biogas production includes cattle dung, night soil, agricultural wastes etc.
Digestion by the microorganisms create methane.
Being an environment friendly fuel, it is used for industrial purposes and as a road vehicle fuel.
The advantages of using biogas are easy availability of raw materials, reduced health hazards and minimized dependance on firewood.
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