Renewable energies are increasingly important. An ever growing number of businesses and private households, as well as energy companies, are backing the sustainable creation of electricity and heat from renewable raw materials. Many countries in the world support the expansion and use of renewable energy – this also includes aid and subsidies in the creation and operation of a bio gas plant.
When organic substances ferment, biogas is produced. In nature, for example, this occurs in bodies of water and in moors, but also in the stomachs of ruminants. The controlled fermentation process takes place in the fermenters of a biogas plant. In these large containers, the organic substrate is decomposed by methane bacteria. The gas mixture produced by this is around 60 % energy-rich methane biogas. The so-called digestate that remains after this metabolic process can also be completely reused as valuable natural fertilizer.
The process of biogas production takes place in four phases: in hydrolysis, or the liquefaction phase, the starting materials (fat, carbohydrate, and protein) are broken down into their chemical components (such as fatty acids, simple sugars, and amino acids). In acidogenesis, or the acidification phase, the dissolved starting materials are decomposed into organic acids. In the third phase, acetogenesis, or the creation of acetic acid, the microorganisms transform the materials into hydrogen, carbon, and acetic acid, the so-called precursor materials of biogas.
Methanogenesis, or the creation of methane, is the final phase of the process. Without access to air (anaerobically) the methane bacteria first transform the acetic acid into carbon dioxide, hydrogen, and methane. Carbon dioxide and hydrogen are then, in turn, transformed into water and methane. Before further use, the biogas is then desulphurised, cleaned, and prepared for the CHP. If you would like to find out more about modern biogas plant construction and biogas technology, we would be happy to explain all the details to you in a comprehensive information and consultation meeting.
As leading experts in biogas engineering we undertake the monitoring and maintenance of your biogas plant following legally required maintenance intervals. Our repair and replacement parts service is always available to you as a plant operator – as is an emergency service that’s available around the clock for rapid troubleshooting. Furthermore, we offer mobile feeding for the bridging of production stoppages. You can also use the Eden Fields expert and biogas services if you operate a plant by a different manufacturer.