Biogas

The main source of biogas is :
Wet cow dung, which is most commonly used for production of biogas.
The other sources of biogas are:
sewage,
crop residue,
vegetable wastes,
waste wood,
dry leaves of the plants,
broken branches of trees,
garbage,
waste paper,
poultry droppings,
pig manures,
algae,
ocean kelp etc.
From one ton green biomass it is possible to get about 400 m3 of gas.…