Biogas is the renewable alternative to fossil gas
Industrial production is normally carried out in large digesters where an active bacterial flora breaks down the organic material, converting it into so called raw gas. In parallel, a digestate is generated, which in many cases can be used as a nutritive bio-fertilizer. Spread over arable land, it replenishes the earth with important nutrients such as nitrogen, phosphorus, potassium and magnesium.
Biogas production is a natural process, in which organic material is broken down by microorganisms in an oxygen-deficient environment
Between 0.5 and 1.0 cubic meter of biogas can typically be extracted from one kilo of dry organic material. However, the amount of biogas actually produced depends on the type of organic material used, the type of pretreatment and the digestion system as well as the know-how behind operating an efficient biogas production process. Using Scandinavian Biogas’ qualified expertise the biogas production can increase up to four times compared to conventional processes.
The main component of biogas is methane (CH4). Methane is a high-quality, energy-rich energy carrying gas generated by the anaerobic, decomposition of organic matter. During anaerobic digestion biogas is formed from fresh organic material and recycled in the biosphere, which means that no additional fossil carbon dioxide is being produced.
Biogas is the result of a biological process
Natural gas is the result of thermal breakdown of organic material under high pressure. The material was deposited millions of years ago and the gas is now encapsulated in fossil layers below the surface, often together with oil. When natural gas is used as vehicle fuel or to generate heat and electricity it releases carbon dioxide (CO2) that has not been in circulation for a very long time, thus increasing the amount of carbon dioxide in the atmosphere.