How does the biogas work?
The biogas has been very popular from the 60s onward thought he first biogas system was introduced in the country some three decades ago. The biogas is produced through anaerobic digestion of organic waste in three stages. In the first stage a number of extra cellular microbe enzymes (like protease, cellulose, lipase, amylase, and so on). The bacteria then decompose the carbohydrates, proteins and lipids into simpler compounds. When the bacteria do so, they utilize oxygen and carbon by which anaerobic conditions are created for methanogenesis. In the last and third stage, the anaerobes decompose all the compounds with low molecular weight to at last produce methane. This is how the biogas or the ‘gobar gas’ as it is called in many places in India comes to be produced. This gas has a very high thermal efficiency (60 percent) when compared to the regular fuel (wood – 17 per cent and cow dung – 11 per cent) that man uses in rural areas. The downside of this process that the bacteria that
