目前我国农村普遍推广的是以水泥为主要材料的水压式沼气池。新建的沼气池,使用一段时间后,水泥会被酸碱液体所腐蚀,出现漏水漏气现象。这正是一个急待研究解决的课题。现在各地虽然已经采取了许多方法,如:加防水粉、沥青、石腊等都取得了一定的效果。但是都因为造价较高、工艺复杂、费工不耐久等原因, At present, the popularization of rural areas in our country is based on cement as the main material of biogas digesters. The new biogas tank, after use for a period of time, the cement will be corrosive acid-base liquid, leaking leakage phenomenon. This is an urgent issue to be studied and solved. Although various measures have been taken all over the country, such as adding waterproof powder, asphalt and paraffin wax, it has achieved some results. But because of the higher cost, complex technology, labor is not durable and other reasons,