化“腐朽”为“神奇”沼气,是各种有机质在隔绝空气以及适宜的温度和湿度条件下,经过微生物的发酵作用产生的一种可燃烧的气体。在密闭的沼气池里,那些能够生活在缺氧条件下的细菌会大量繁殖,它们将人粪尿、禽畜粪尿和秸秆中的有机物分解,并产生沼气。沼气由甲烷(50%~80%)、二氧化碳(20%~40%)、氮气(0%~5%)以及氧气(小于0.4%)组成。沼气的成分主要是甲烷,它是一种清洁的燃料,可以用来做饭和照明。沼气池中的残渣和残液 “Decaying” is “magical” Biogas is a kind of combustible gas produced by the fermentation of microorganisms under various air and temperature and humidity conditions. In confined digesters, bacteria that can live under anaerobic conditions multiply. They break down human excrement, livestock excrement and organic matter from straw to produce biogas. Biogas consists of methane (50% to 80%), carbon dioxide (20% -40%), nitrogen (0% -5%) and oxygen (less than 0.4%). The main component of biogas is methane, which is a clean fuel that can be used for cooking and lighting. Digester residue and raffinate