What is the use and harm of methane
(five) the biogas is conducive to the protection of the ecological environment. To solve the problem of fuel biogas farmers, reduce deforestation and destruction of farm cattle and sheep, is conducive to the protection of forest resources, promote the development of afforestation, reduce soil erosion, improve agricultural ecological environment. (six) the biogas is conducive to the liberation of labor. Set up biogas a lot of labor, farmers will be the last pick firewood, coal cost savings, can be put into agricultural production lines. The first rural women through the use of biogas, free from the traditional way of cooking smoked, saving the cooking time, reduce the housework. Biogas is a kind of clean energy, so all countries in the rural areas.
Use of biogas:Comprehensive up in the following aspects: (a) methane is beneficial to solve the energy problem in rural areas. A 3 - 4 family, built a 10 cubic meters of methane fermentation pool, as long as sufficient raw materials, and good management, can solve the problem of lighting, cooking fuel. (two) is conducive to the promotion of biogas the development of agricultural production. Since the establishment of a large number of livestock and poultry manure into biogas, biogas fermentation, biogas production, and a large number of high quality organic fertilizer retting, expand the source of organic fertilizer. In biogas fertilizer crop not only enhances the ability of drought resistance and antifreeze, and improve the survival rate of the biogas fertilizer not only saves. Spraying amount of fertilizers and pesticides, but also conducive to the production of green pollution-free food. (three) the biogas is conducive to promote the development of animal husbandry. Set up biogas, will help solve the "three" (fuel, feed and fertilizer). The contradiction, to promote the development of animal husbandry. (four) the biogas is conducive to improve health conditions. Who built a biogas digesters farmers realize, using biogas as fuel, smokeless clean, clean and convenient. Some feces, garbage and sewage are good raw materials for biogas fermentation, with the raw material into the digester bacteria, parasite eggs, in the digesters closed fermentation and killed. So as to improve the environmental health conditions in rural areas, are beneficial to human and animal health
The danger is that the biogas biogas is mixed gas, methane gas content of which is 55%~70%, in addition to containing carbon dioxide, hydrogen sulfide, nitrogen and carbon monoxide. Methane gas is non-toxic, but the concentration is too high, the oxygen content in air is significantly reduced, suffocating. When the concentration of methane in the air at 25%~30% people will be headache, dizziness and fatigue, inattention, breathing and heartbeat, if not timely away, can cause suffocation. If the methane content in the air more than 45--50% will be due to severe hypoxia and dyspnea, tachycardia, coma and choke and death.
