Biogas
Biogas is a gaseous renewable energy source[1] produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste, wastewater, and food waste. Biogas is produced by anaerobic digestion with anaerobic organisms or methanogens inside an anaerobic digester, biodigester or a bioreactor.[2] The gas composition is primarily methane (CH
4) and carbon dioxide (CO
2) and may have small amounts of hydrogen sulfide (H
2S), moisture and siloxanes. The methane can be combusted or oxidized with oxygen. This energy release allows biogas to be used as a fuel; it can be used in fuel cells and for heating purpose, such as in cooking. It can also be used in a gas engine to convert the energy in the gas into electricity and heat.[3]
After removal of carbon dioxide and hydrogen sulfide it can be compressed in the same way as natural gas and used to power motor vehicles. In the United Kingdom, for example, biogas is estimated to have the potential to replace around 17% of vehicle fuel.[4] It qualifies for renewable energy subsidies in some parts of the world. Biogas can be cleaned and upgraded to natural gas standards, when it becomes bio-methane. Biogas is considered to be a renewable resource because its production-and-use cycle is continuous, and it generates no net carbon dioxide. From a carbon perspective, as much carbon dioxide is absorbed from the atmosphere in the growth of the primary bio-resource as is released, when the material is ultimately converted to energy.
Market Rasen is a town and civil parish within the West Lindsey district of Lincolnshire, England. The River Rase runs through it east to west, approximately 13 miles (21 km) north-east from Lincoln, 18 miles (29 km) east from Gainsborough and 16 miles (26 km) south-west from Grimsby. It lies on the main road between Lincoln and Grimsby, the A46 and is on National Cycle Route 1 (part of EuroVelo 12) of the National Cycle Network.[2]
In 2001 the town had a population of 3,200.[3] In the 2011 census he population of the civil parish was 3,904.[4]
The town is known for Market Rasen Racecourse and being close to the epicentre of a 2008 earthquake.