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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.
Newquay(/ˈnjuːki/NEW-kee;Standard Written Form:Tewynblustri)[citation needed]is a town on the north coast inCornwall, England, United Kingdom. It is acivil parish,seaside resort, regional centre foraerospaceindustries with an airport and aspaceport, and afishing porton theNorth Atlanticcoast ofCornwall, approximately 12 miles (19 km) north ofTruroand 20 miles (32 km) west ofBodmin.[1]
The town is bounded to the south by theRiver Ganneland its associated salt marsh, and to the north-east by the Porth Valley. The western edge of the town meets the Atlantic atFistral Bay. The town has been expanding inland (south) since the former fishing village of New Quay began to grow in the second half of the nineteenth century.
In 2001, the census recorded a permanent population of 19,562,[2]increasing to 20,342 at the 2011 census[3]and 23,600 in 2021. Recent estimates suggest that the total population for the wider Newquay area (Newquay and St Columb Community Network Area[4]) was 27,682 in 2017, projected to rise to 33,463 by 2025.[5]
Newquay is a town on the north coast in Cornwall, England, United Kingdom. It is a civil parish, seaside resort, regional centre for aerospace industries with an airport and a spaceport, and a fishing port on the North Atlantic coast of Cornwall, approximately 12 miles north of Truro and 20 miles west of Bodmin.
