What is the proper thickness of HDPE geomembrane for landfills

The full name of HDPE geomembrane is "High Density Polyethylene Geomembrane". It has excellent resistance to environmental stress cracking, low temperature resistance, aging resistance, corrosion resistance, wide temperature range and long service life. It is widely used in life. Landfill impermeability, solid waste landfill impermeability, sewage treatment plant impermeability, artificial lake impermeability, tailings treatment and other impermeability projects. Today we will talk to you about HDPE geomembrane used in landfills. Let's take a look!

In order to solve the odor problem of landfills, some landfills have started to use greenhouse films as daily covering materials, which can also ensure that the waste at that time is covered every day. Although greenhouse film is more prone to breakage, it still reduces the exposed surface of the garbage. , reduce some odor, pest and flight pollution; as the greenhouse film is relatively thin, it can only overlap the film with the ground, and the soil ballast is packed in woven bags, which cannot be completely sealed and cannot realize rainwater and sewage diversion. , it cannot effectively collect, treat and utilize landfill gas. Therefore, geomembranes are used as cover materials for landfills.

What is the appropriate thickness of HDPE geomembrane for landfills?

In general, when purchasing geomembranes for geomembrane cover projects, HDPE geomembranes are usually chosen because of their better intrinsic properties. Among all geomembrane products, HDPE geomembranes can be used not only as membrane cover material, but also as impermeable etc. Its application range is very wide, so people usually choose HDPE geomembranes to use.

In terms of thickness of geomembranes, some people will choose thin geomembranes, such as 0.3mm HDPE geomembranes, which are usually black in color, but still have the same problems as greenhouse membranes in the process of use. It is not good to use and will be easier to break. To solve this problem, some landfills now mostly use 1.0mm or more geomembrane as daily cover and intermediate cover material, which is the thickness of HDPE geomembrane suitable for landfills, because the weldability of geomembrane is only 1.0mm or more. It can achieve the performance, which can realize the full confinement and reduce the amount of leachate generation, but also is an important guarantee to increase the landfill gas collection.