Landfill gas is created when food, wood, and other organic waste in a landfill decomposes under anaerobic – or oxygen-free – conditions. Because landfill gas is about 50 percent methane, it can be used as a source of energy similar to natural gas (which is about 90% methane). Carbon dioxide (CO2) is the other primary component of landfill gas. Since landfill gas is generated continuously, it provides a reliable fuel for a range of energy applications, including heating and electric power generation. Learn more about landfill gas.
methane produced as waste breaks down in landfill. This is monitored and can be collected to produce electricity.
A combustible and potentially explosive mixture of methane and carbon dioxide, which is formed by anaerobic decomposition of garbage.
Gases such as methane and carbon dioxide (CO2), which are emitted from landfills as organic matter in the landfill rots. Landfill gas can be a problem if there are houses near landfills, as the gas is very explosive if it is trapped in confined spaces, such as basements or closed drains. Landfill gases are also greenhouse gases (contribute to global warming through the greenhouse effect).
Municipal solid waste contains significant portions of organic materials that produce a variety of gaseous products when dumped, compacted, and covered in landfills. Anaerobic bacteria thrives in the oxygen-free environment, resulting in the decomposition of the organic materials and the production of primarily carbon dioxide and methane. Landfill gas consists of 50-60% methane and 35-40% carbon dioxide
Landfill gas arises from waste deposited underground in landfill sites. Biodegradable organic waste decomposes anaerobically to produce a gas that is roughly an even mixture of carbon dioxide and methane. The methane content gives it the potential as a fuel, which can then be used to generate electricity or to provide process heat. The amount of gas available from a landfill site depends on the type of waste, moisture content, temperature, acidity of the waste and the design of the site. Gas is drawn up from vertical or horizontal wells through a system of pipes. The generating equipment is usually contained within the same area as the extraction plant.
Gas arising from the decomposition of the organic (putrescible) fraction of MSW in a landfill site; principally methane, carbon dioxide, and hydrogen sulphide. Such gases may cause explosions at landfills if not properly managed, but may be recovered for their energy value.
a mixture of gases produced when organic matter in wastes decomposes in a land disposal facility in the absence of air.
Gas that is generated by decomposition of organic material at landfill disposal sites. Landfill gas is approximately 50 percent methane.
A gas produced by decaying organic matter in a garbage landfill. This gas is used to power burners and engines. This gas has a high methane content and may contain other gases; therefore, stainless steel construction is usually required.
Gas that is produced by the biodegradation of waste materials in a landfill site. The gas contains principally a mixture of methane gas and carbon dioxide. Other gases in trace concentrations are also present.
Biogas generated by the decomposition of organic material in landfills. This gas is about 50 per cent methane.
As organic wastes within a landfill break down, gases such as methane and hydrogen sulfide are produced. The production of these gases drops off over time.
Gas generated by the natural degrading and decomposition of municipal solid waste by anaerobic microorganisms in sanitary landfills. The gases produced, carbon dioxide and methane, can be collected by a series of low-level pressure wells and can be processed into a medium Btu gas that can be burned to generate steam or electricity. (Source: California Energy Commission)
Gas generated as a result of natural decomposition of waste within landfills predominantly consisting of carbon dioxide and methane.
Gas created in a landfill as a result of decomposing waste that consists of methane (50-55%), carbon dioxide (45-50%) and trace amounts of other gases such as oxygen, nitrogen and ammonia.
The gas generated in any landfill site accepting biodegradable material. It consists of a mixture of gases, mainly methane and carbon dioxide.
Gas, principally methane and carbon dioxide, resulting from the biological decomposition of wastes within a landfill site.
gasses produced by the decomposition of trash. It generally consists of 50-60 percent methane, 40% carbon dioxide and 1% other trace gasses.
Methane is produced in landfill sites at a purity of around 45%, compared with an average of 70% from abandoned coal mines.
a by product of the bio-degradation of waste, this gas typically consists of 65% methane and 35% carbon dioxide, together with a variety of trace gases. The gas has to be managed, due to the properties of methane, which is an asphyxiant and can explode in air. Landfill gas may be vented to atmosphere, burnt, or used to generate power.
Gas produced by aerobic and anaerobic decomposition of a landfill generally composed of approximately 55% methane and 45% carbon dioxide, sometimes refined with membrane methods to eliminate the carbon dioxide.
Gas that is produced when organic waste materials naturally decompose in a municipal solid waste landfill. Landfill gas is approximately 50 percent methane, the primary component of natural gas, and 50 percent carbon dioxide. Landfill gas can be collected and used as a fuel for heating or generating electricity.