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引言从1973年到1987年十五年中,我国农村家用沼气池的推广形势发生了巨大的变化,成绩显著,困难不少。近来,农村家用沼气池推广数量连年徘徊难上,引起了国内外人士的关注本文展示了整个发展形势,着重评价推广效果和影响因素,并对其发展趋势和对策进行了初步探讨。一、发展概况沼气是有机废物经过厌氧消化生产出来的气体燃料,含有50%以上的甲烷。将农业残余物诸如秸杆、人畜粪便等入沼气池处理后,可生产沼气用于做饭、点灯,能源利用率比直接烧用秸杆高二倍左右;而且,废物中有害病菌
Introduction From 1973 to 1987, fifteen years, the popularization situation of domestic rural digesters in our country has undergone tremendous changes with notable achievements and many difficulties. Recently, the number of domestic digesters popularized in rural areas is still hard to come by, which has aroused people’s attention at home and abroad. This article shows the whole development situation, emphasizes the promotion effect and influencing factors, and makes preliminary discussions on its development trend and countermeasures. First, the development of biogas is biogas produced after anaerobic digestion of organic waste, containing more than 50% of methane. The agricultural residues such as straw, livestock and poultry manure into the digester treatment, the production of biogas for cooking, lighting, energy utilization than direct burning straw about two times; and, waste harmful bacteria