Construction method of black film biogas slurry pool

Abstract

The invention relates to a construction method of a black film biogas slurry pool. The construction conditions of a construction site are firstly surveyed, the construction manner is confirmed, and construction machines are selected; a dam base is excavated, backfilling of a dam is carried out, an anchoring trench is dug, and the biogas slurry pool is formed; pipelines are laid in the biogas slurry pool and are subjected to hot-melting butt joint; geogrids are laid on the wall and the bottom of the biogas slurry pool, and grey cakes are arranged on the lower portions of the geogrids; after concrete at the bottom of the biogas slurry pool is poured, concrete on the wall of the biogas slurry pool is poured; polyethylene films are selected as films, film layout design is reasonably planned through the CAD technology, and the anti-seepage films are cut; the films are laid in the biogas slurry pool, and dual-rail hot-melting welding equipment is selected for carrying out hot-melting weldingon the films; and finally the hot-melting performance of the films is checked. By means of the method, the construction period can be shortened, the construction quality and the anti-seepage effect of the black film biogas slurry pool can be improved, and the service life of the black film biogas slurry pool is prolonged. The method is suitable for sewage storage project construction of large andmedium-sized sewage treatment works, farms and the like.

Description

technical field [0001] The invention relates to a biogas digester, in particular to a construction method for a black film biogas digester. Background technique [0002] The black film biogas digester is a kind of dam structure. Its structure is composed of dam body, pipeline and HDPE membrane. The storage volume in the tank is large and the sewage retention time is long. It can not only save fertilizer costs but also benefit the environment and land resource protection. . Through the investigation of various types of farms, it is found that many "black film biogas digesters" have disadvantages in the construction process, mainly because the construction period is long, the concrete structure is easy to crack and the manure leaks, which is extremely harmful to soil quality and water resources. Large, extremely difficult to handle, and extremely high repair costs, which seriously affect the service life of the biogas slurry tank. Contents of the invention [0003] The tec...

AI Technical Summary

Problems solved by technology

Through the investigation of various types of farms, it is found that many "black film biogas digesters" have disadvantages in the construction process, mainly because the construction period is long, the concrete structure is easy to crack and the manure leaks, which is extremely harmful to soil quality and water resources. Large, extremely difficult to handle, and extremely expensive to repair, which seriously affects the service life of the biogas slurry tank