Biofuels and Bioenergy

Biogas

Biogas is a mixture of different gases formed by the anaerobic breakdown of organic matter. Agricultural waste, plant waste, municipal waste, sewage and food waste are all examples of raw materials that can be used to make biogas. It is a renewable energy source that can be generated with minimal capital and in a shorter amount of time. Anaerobic digestion with anaerobic bacteria, which digest material within a closed system, or fermentation of biodegradable materials, can also produce biogas. Biogas is made up mostly of methane (CH4) and carbon dioxide (CO2), with traces of hydrogen sulfide (H2S), moisture and siloxanes thrown in for good measure. Biogas, like natural gas, can be compressed into compressed natural gas (CNG) and used to fuel vehicles.