Methane or bio-gas is a blend of CH4 and CO2 say about 70% to 29% exhibiting other gases as well. Methane is used in Thailand and in India in cars and is transported through trucks in lieu of diesel fuel or gasoline. Methane represents to be the gas for future as it is simple to make the process. Methane digesters are simple devices producing methane cheaply and easily. The reason that it has not gained prominence in the colder places is mainly because methane requires heat to digest the organic materials. The anaerobic bacteria in abundance of organic matter and deficiency of oxygen will initiate with the decomposition process and produce methane gas.
Methane production is possible only in environment that is free of oxygen. The temperature has to be at 95 constantly and the PH is expected to be between 6.6 and 7.6 to maintain optimal conditions. This procedure is easily controllable on even a small farm. The gas produced is efficient enough to run generators producing electricity and can as well be compressed to run cars. The high carbon dioxide levels in bio-gas should be enriched or sweetened so that the carbon dioxide is removed. This allows the equipment to run efficiently as the gases present in methane are corrosive. India and Nepal make use of bio-gas for heating and cooking. This is produced in small pits and the gas is piped into their homes. Cow waste of 2 or 3 cows is enough to hook up gas line for few families and to provide light.
Methane production cannot be started immediately nor can be stopped abruptly. The methane producing microbes demand continuous organic substance feeding for their survival. Methane gas is the best substitute to gasoline combustion as it breaks into water and carbon dioxide when it is burnt in the combustible engines. It can be easily produced using organic waste as it burns clean and as the organic waste is in plentiful in households; the production of methane is possible. The methane digesters eradicate tons of landfill waste that cause global warming by producing methane and also reduce the fossil fuels usage in the aim of transportation.
Cattle and sheep are ruminants that make use of bacteria for the fermentation of food while digesting their food and the same bacteria are also responsible in methane production that is released into the atmosphere through flatulence and belching. It has also been observed that cattle and sheep produce less methane. However, every option has limits from other sources of concerns and the methane problem is also approached to decrease the levels of new problems from being created.
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