Why Do Landfill Use HDPE Geomembrane and How To Choose?
Landfill leakage can cause serious environmental pollution. Soil contamination, salinization, will be poison, parasites, pathogenic bacteria and other pathogens in the soil can make people sick. Penetration will pollution of groundwater, and eventually entered the human food chain, causing serious harm to the human body. Starting in the 80s in the landfill anti-seepage treatment abroad used in 1-2 mm thick of HDPE, HDPE geomembrane factory price has become a mature technology and getting more and more applications. China’s environmental protection landfill started late, but in recent years, under the attention of the state environmental protection administration and the improvement of national environmental protection awareness, the environmental protection landfill with HDPE anti-seepage treatment has been widely used in the country.
For landfill, wholesale HDPE geomembrane thickness can be 0.75mm, 1.0mm, 1.25mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, and 3.5mm, etc. According to the requirements of national standard CJ/ t234-2006 and the actual situation, the recommended thickness of HDPE geomembrane should be at least 1.5mm, and the tolerance should be within ±3%. However, 1.5mm and 2.0mm are more commonly used as landfill sites.
Of course, the choice of thickness of HDPE geomembrane for sale used in different position of the landfill site is also different, mainly as the substrate seepage prevention, slope seepage prevention and field sealing cover. Different types of film used in a different position, such as the substrate with a smooth surface, slope with a rough surface. In addition, there are many other factors affecting the choice of thickness, such as landform, soil quality, impermeable materials, impermeable requirements and so on.