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安徽省屯溪市奕棋公社徐村大队一农民建造了一个0.82米~3球体沼气池,混凝土结构,壁厚5厘米。沼气池的进料口与厕所相连,出料口安装一根直通池内的管子,用于抽出发酵液、添料、冬季加热水升温等。这种沼气池施工简单,约用工2-3工日,用料省,成本低,约30元,池子浅(1.4米),出料方便,日产气0.4米~3左右,比该省普通沼气池产气率高出6-7倍。据分析,其原因是:沼气发酵液浓度高,达20%(一般为8%);含碳、氮量高;发酵温度高,密封性能好。已运行6年,
Xu Village, Tunxi, Anhui Province Commune Commune Xu Village Brigade, a farmer built a 0.82 m ~ 3 ball digesters, concrete structures, wall thickness of 5 cm. Digester feed inlet connected to the toilet, the discharge port to install a straight through the pool of tubes for the extraction of fermentation broth, Tim material, winter heated water heating and so on. This biogas digester construction is simple, about 2-3 days of labor, material province, low cost, about 30 yuan, shallow pond (1.4 meters), the material is convenient, Nissan gas 0.4 m ~ 3, than the province’s ordinary biogas Pool gas production rate 6-7 times higher. According to the analysis, the reason is: high concentration of biogas fermentation broth, up to 20% (usually 8%); high carbon and nitrogen content; high fermentation temperature, good sealing performance. Has been running for 6 years,