A CLEAN ENERGY
Compressed Biogas for Cooking Purpose
Biogas is produced by anaerobic digestion or fermentation or decomposition of
wastes by the action of methanogenic bacteria. It is composed of 50-70% methane,
carbon dioxide, 1% H2S, 0.1%N2, 0.1% O2, 0.1% H2 and some other gases. During
about 25-30 % of the dry matter of waste is converted into a combustible gas and
of 70-75 % of the total solids content comes out as sludge which is known as slurry.
energy content of biogas is 6-6.5 KWh/m3, and the ignition temperature is 650-750 o
Technology and Mechanism
This energy allows biogas to be used as a fuel for any heating purpose, such as cooking.
can also be used in a gas engine to convert the energy in the gas into electricity.
can be compressed, much like natural gas and used to power motor vehicles. This gas is
20 percent lighter than the air which is odorless and burns with clear blue flame
that of Liquefied Petroleum Gas (LPG).
Biogas could be particularly useful in rural or poorer areas due to the low cost of
set-up and the availability of waste materials. Almost any organic waste can be used
the process, though factors such as pH and temperature affect the gas production.It
been cited as a renewable energy alternative with great potential due to the fact
it is a zero-emissions process. By capturing methane emissions, biogas plants work
curb the greenhouse effect and limit the amount of harmful gases spread in the
Anaerobic Digestion and Biogas Association Says
“By linking up and closing the loop on the previously linear processes of sending
waste to landfill, anaerobic digestion is able to tackle waste, energy, sustainable food
production and nutrient recycling challenges in a sustainable and circular manner”