所谓“四位一体”式沼气池是把厕所、畜禽舍与沼气池相连,并结合大棚一起修建。它不仅控制了粪便对环境的污染,同时也解决了能源、肥料等问题,是一项集能源、卫生、肥料的综合建设项目。沼气池基本结构详见示意图。一、施工方法和要求 1.池坑开挖:挖土时土壁尽量采用立壁,不放坡,土质好时(土层均匀、不易破裂、不易沉降),池墙砌块紧贴坑壁砌筑,土质差时应留不小于15厘米的回填宽度。 2.池底砌筑:土质好的地方,可用混凝土180号作底,厚约10—15厘米。一般土质,最好用钢筋,混凝土150号—180号作底,砌筑工艺同池 The so-called “four-in-one” biogas digesters are used to connect toilets, poultry houses and biogas digesters and build them together with greenhouses. It not only controls the pollution of the excreta to the environment, but also solves the problems of energy, fertilizer, etc. It is an integrated construction project integrating energy, sanitation and fertilizer. The basic structure of the digester is shown in the schematic diagram. First, the construction methods and requirements 1. Pit excavation: soil excavation when the wall as far as possible to use the wall, no slope, when the soil is good (the soil is uniform, not easily broken, difficult to settle), pool wall blocks close to the pit walls For construction, when the soil quality is poor, a backfill width of not less than 15 cm should be maintained. 2. Pool floor masonry: a good place for the soil, can be used as the bottom of the 180th concrete, about 10-15 cm thick. General soil quality, it is best to use steel, concrete No. 150 -180 as the bottom, masonry technology with the pool