In terms of environment and sanitation protection, HDPE geomembrane is playing a huge role. With the increasing awareness of environmental protection, the legal system for environmental protection is gradually improving. The original sewage, dirty water, harmful substances, toxic substances, wastes, pollutants and other wastes must be controlled, stored and purified. Sewage tank and landfills are essential containers for storing these hazardous materials. These harmful substances mainly contain acid and alkali, toxic and harmful substances, which will cause temperature changes in the process of water treatment, then corrode and destroy the surface of the sewage pool. If the anti-seepage effect is not good, these harmful substances leak into the soil layer, which will cause great pollution to the environment. After the soil is polluted, it will be salinized and poisoned, and pathogens such as parasites and pathogenic bacteria in the soil can make people sick. Infiltration can also pollute groundwater and enter the human food chain, so the anti-seepage requirements for sewage pools and landfills are also relatively high. HDPE geomembrane is resistant to acid and alkali, corrosion resistance: it can withstand more than 80 kinds of chemical media such as strong acid and alkali, good anti-seepage performance, low temperature resistance -60 degrees ~ 70 degrees, high temperature resistance, the pool adopts HDPE anti-seepage geomembrane for anti-seepage , which good economic benefits, low comprehensive cost, low investment, in line with sewage anti-seepage standards. It is a new and irreplaceable product for current anti-seepage.