Geomembranes

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Geomembrane is a waterproof barrier material with high molecular polymer as the basic raw material. It has excellent resistance to environmental stress cracking, low-temperature resistance, aging resistance, corrosion resistance, a large operating temperature range (-60–+60), and a long service life (70 years). It is widely used in seepage prevention of domestic waste landfills, seepage prevention of solid waste landfills, seepage prevention of sewage treatment plants, seepage prevention of artificial lakes, tailings treatment, and other seepage prevention projects.

Main Function of Geomembrane

One of the most important functions of geomembrane is its excellent seepage control performance. As geomembrane has a high degree of sealing, it can effectively prevent the infiltration of water or liquid, and is widely used in engineering projects to prevent water pollution. For example, at landfills, geomembranes are used to prevent waste leachate from entering the groundwater system. In the construction of reservoirs, ponds or other water storage facilities, geomembranes are also effective in preventing water leakage.

Geomembranes also have the function of isolating and preventing the spread of pollutants. In the field of waste disposal, sewage treatment, geomembrane can prevent harmful substances or pollutants from spreading to the surrounding environment, and protect soil, water and air from pollution. For example, in waste dumping sites, geomembranes, as barrier materials, can prevent toxic wastewater or chemical substances from penetrating into the groundwater and protect the surrounding ecological environment.

To a certain extent, geomembranes can enhance the stability of the soil and prevent the soil from being eroded due to water flow or other external forces. In some areas where the soil is susceptible to water erosion or foundation impact, the geomembrane can enhance the soil’s resistance to scouring, thus improving the stability of the entire soil body.

Modern geomembranes are usually made of chemically resistant materials such as polyethylene (HDPE), polyvinyl chloride (PVC), etc., which are able to resist erosion by a wide range of chemicals. This makes the application of geomembranes in special environments such as the treatment of toxic wastes, acidic and alkaline wastewater, etc. much more widespread and effective. For example, at the bottom of chemical storage tanks, geomembranes can avoid chemical leakage and pollution.

　SEPARATIONREINFORCEMENTFILTRATIONDRAINAGEWATERPROOFPREVENTIONPOLLUTION
PREVENTION		PROTECTIONCONSOLIDATE
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GEOMEMBRANE√　　　√　√　　
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GEOTUBE　　　√　　　　　
GEOCELL　　　　　√　　√
GCL　　　　√　√　　
GEOCOMPOSITE√√√√√√√　　
GEOCONCRETE BLANKET√√√
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