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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.
Brighouse (/ˈbrɪɡhaʊs/[2][3][4][5], locally also /ˈbrɪɡaʊs/[6]) is a town within the metropolitan borough of Calderdale, in West Yorkshire, England. Historically within the West Riding of Yorkshire, it is situated on the River Calder,[7] 4 miles (6.4 km) east of Halifax. It is served by Junction 25 of the M62 motorway and Brighouse railway station on the Caldervale Line and Huddersfield Line. In the town centre is a mooring basin on the Calder and Hebble Navigation. The United Kingdom Census 2001 gave the Brighouse / Rastrick subdivision of the West Yorkshire Urban Area a population of 32,360.[8] The Brighouse ward of Calderdale Council gave a population of 11,195 at the 2011 Census.[9] Brighouse has a HD6 postcode.
The name Brighouse (or "Bridge House") originates from a building on (or close to) the bridge over the River Calder. In its early history, it was a hamlet of the nearby village of Rastrick.
Brighouse is twinned with Lüdenscheid in Germany, the link beginning with an exchange by Brighouse Children's Theatre in 1950 followed by a civic twinning charter in 1960.[10
