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Acetoclastic methanogenesis is the process of fermenting acetate by anaerobic bacteria in order to produce methane.
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What are the steps involved in methanogenesis?
Acetoclastic methanogenesis is the process of fermenting acetate by anaerobic bacteria in order to produce methane.
How does gasoline remediation work?
Doesn't work where methanogenesis is occurring CO2 > CH4
How much C02 is produced from anacroically converting 100 pounds of cellulose to methane?
That's a tough one. There are multiple reaction pathways for methanogenesis using cellulose. If you're given one formula that works though, you have to balance it, then do some molar conversions, then some stoichiometry.
How are eubacteria different from archaebacteria?
Eubacteria are true bacteria. They:-contain peptidoglycan in cell wall-straight-chain ester-linked lipids in cell membrane-four subunit RNA polymerase core-some are pathogenicThe classification archaebacteria is outdated. Archaea are separate from bacteria because they have unique characteristics. They:-lack peptidoglycan in cell walls-branched-chain ether-linked lipids in cell membrane-can obtain energy through methanogenesis-lipid stereochemistry is opposite of that in other organisms-lack thymine in tRNA-ten subunit RNA polymerase core-none are pathogenicEubacteria and archaebacteria have similar general cell structures, but the composition and layout of those cellular components is remarkably different.
When is methane made?
Methane is a chemical compound with the molecular formula CH4. It is the simplest alkane, and the principal component of natural gas. Methane's bond angles are 109.5 degrees. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane and its clean burning process makes it a very attractive fuel. However, because it is a gas at normal temperature and pressure, methane is difficult to transport from its source. In its natural gas form, it is generally transported in bulk by pipeline or LNG carriers; few countries still transport it by truck. Methane is a relatively potent greenhouse gas with a high global warming potential of 72 (averaged over 20 years) or 25 (averaged over 100 years). Methane in the atmosphere is eventually oxidized, producing carbon dioxide and water. As a result, methane in the atmosphere has a half life of seven years (if no methane were added, then every seven years, the amount of methane would halve). The abundance of methane in the Earth's atmosphere in 1998 was 1745 parts per billion, up from 700 ppb in 1750. In the same time period, CO2 increased from 278 to 365 parts per million. The radiative forcing effect due to this increase in methane abundance is about one-third of that of the CO2 increase. In addition, there is a large, but unknown, amount of methane in methane clathrates in the ocean floors. The Earth's crust contains huge amounts of methane. Large amounts of methane are produced anaerobically by methanogenesis. Other sources include mud volcanoes, which are connected with deep geological faults, and livestock, primarily cows.
What is the H2O cycle?
the hydrogen cycle is simply the water cycle. this cycle is all about how water is recycled throughout the planet. # Water is split into hydrogen and oxygen by the process of elecrolysis, using electricity generated from renewable energy sources # The oxygen is released into the atmosphere, whilst the hydrogen is stored and transported # Oxygen from the atmosphere is re-combined with the stored hydrogen in a fuel cell, producing electricity and water vapour # The water vapour is released back into the environment, where it can become part of the cycle once again
What is methane gas and how is it used?
Methane is a chemical compound with the chemical formula CH4. It is the simplest alkane, and the principal component of natural gas. Methane's bond angles are 109.5 degrees. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane makes it an attractive fuel. However, because it is a gas at normal temperature and pressure, methane is difficult to transport from its source. In its natural gas form, it is generally transported in bulk by pipeline or LNG carriers; few countries transport it by truck.Methane was discovered and isolated by Alessandro Volta between 1776 and 1778 when studying marsh gas from Lake Maggiore.Methane is a relatively potent greenhouse gas. Compared with carbon dioxide, it has a high global warming potential of 72 (calculated over a period of 20 years) or 25 (for a time period of 100 years).[2] Methane in the atmosphere is eventually oxidized, producing carbon dioxide and water. As a result, methane in the atmosphere has a half life of seven years[citation needed].The abundance of methane in the Earth's atmosphere in 1998 was 1745 parts per billion (ppb), up from 700 ppb in 1750. By 2008, however, global methane levels, which had stayed mostly flat since 1998, had risen to 1,800 ppb[3]. By 2010, methane levels, at least in the arctic, were measured at 1850 ppb, a level scientists described as being higher than at any time in the previous 400,000 years.[4] (Historically, methane concentrations in the world's atmosphere have ranged between 300 and 400 ppb during glacial periods commonly known as ice ages, and between 600 to 700 ppb during the warm interglacial periods).In addition, there is a large, but unknown, amount of methane in methane clathrates in the ocean floors. The Earth's crust contains huge amounts of methane. Large amounts of methane are produced anaerobically by methanogenesis. Other sources include mud volcanoes, which are connected with deep geological faults, landfill and livestock (primarily ruminants) from enteric fermentation
Everything about biogas?
Biogas typically refers to methaneproduced by the fermentation of organic matter including manure, wastewater sludge, or municipal solid waste, under anaerobic conditions. The process is popular for treating many types of organic waste because it provides a convenient way of turning waste into electricity, decreasing the amount of waste to be disposed of, and of destroying disease causing pathogens which can exist in the waste stream. The use of biogas is encouraged because methane burns with a clean flame and produces little pollution. The digestion has three main stages. The first, hydrolysis, involves breaking down the large macromolecules to sugars, amino acids, and fatty acids by bacteria under aerobic conditions. The second stage is acetogenesis, during which acetogenicbacteria convert sugars into short-chain acids, mainly acetic acid. The third stage is methanogenesis, which is carried out by anaerobic bacteria. Here, the acids are converted into methane. Other sources of biogas are landfills, anaerobic lagoons and sewage treatmentplants. Biogas from municipal sewage treatment plants typically contains 55% to 65% methane, with the remainder being primarily carbon dioxide. In addition it can contain up to 0.5% Hydrogen Sulfide, and is generally saturated with water, giving it a corrosive nature. Since the anaerobic digestion process requires a a constant temperature of up to 95 degrees F (Mesophilic process) or 135 degrees F (Thermophilic process), part of the biogas generated is usually used to heat the digester. The remainder can be used to generate steam or electicity via engine generators, gas turbines, or microturbines. Excess gas, due to fluctuations in the production rate, is generally flared. Biogas from landfills tends to have lower methane percentages due to the less homogeneous nature of the waste, as well as the lack of ability to optomize the digestion process. Waste from food processing plants and breweries tends to have a higher methane content. One major benefit producing and burning biogas is that emissions are captured and treated from the inevitable decomposition of the organic matter. Ammonia and methane are released to the atmosphere during desomposition in landfills or during composting. The digester accelerates decomposition and enhances methane production and capture. See anaerobic digestion. Biogas can have a higher heating value in the range of 150 to 650 Btu/scf (6 to 24 MJ/m³), which is about half that of natural gas. The medium-heat gas can be fired in a number of prime movers for power generation (mechanical, thermal, or electrical). The energy produced is considered renewable energy.
Boling point of water?
Kelvin is simply the temperature scale of Celsius, measured from absolute 0 instead of the freezing point of water. On a Kelvin scale, the freezing point of water is at 278.15 Kelvin. The boiling point of water being at 100 degrees Celsius, this means that in Kelvin it is 373.15. You can work out Kelvin from Celsius by the equation [Kelvin] = [Celsius] + 278.15.
