1976年，意大利科学家Vatta第一次证明了有机物质放在池子底部，经过厌氧可以产生甲烷。这些有机物质是通过微生物的反应发酵成气体和肥料的，这种复合气体大约为63％的甲烷；40％的二氧化碳；4％的氮；1％的H2S以及少量的氢、氧和一氧化碳。甲烷是唯一的可燃气体。生物气体有 In 1976, Vatta, an Italian scientist, proved for the first time that organic matter was placed on the bottom of a pond, generating anaerobic methane. These organic substances are fermented to gases and fertilizers by the reaction of microorganisms, which is approximately 63% methane; 40% carbon dioxide; 4% nitrogen; 1% H2S and small amounts of hydrogen, oxygen and carbon monoxide. Methane is the only combustible gas. Biogas is there