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LDPE Geomembrane For Tailing
1.Outstanding anti-seepage performance: The LDPE geomembrane has a tightly structured molecular structure, with an anti-seepage coefficient ranging from 10⁻¹⁰ to 10⁻¹² cm/s.
2.Strong chemical stability: It maintains stable performance within a wide pH range of 2 - 12, and can withstand most acids, alkalis, salts, etc.
3.Good durability: It has high tensile and tear resistance, capable of withstanding external forces such as tailings accumulation and transportation.
4.Convenient construction characteristics: It is lightweight and easy to transport and lay. It can be cut as needed, and can be quickly and firmly connected using methods.
The LDPE geomembrane is specially designed for tailings treatment. It is mainly made of low-density polyethylene and is a highly performing geotechnical anti-seepage material. It has a flexible texture and can effectively fit the complex base of the tailings pond. Its anti-seepage performance is extremely excellent, preventing the leakage of tailings liquids. It has strong chemical corrosion resistance and is not affected by various acids and alkalis in the tailings, ensuring long-term stable use.
Product parameters
Parameter | Specification |
Material | Low-Density Polyethylene (LDPE) |
Thickness | 0.5 mm – 3.0 mm (customizable) |
Tensile Strength (MD/TD) | ≥14 MPa (Machine Direction) / ≥13 MPa (Transverse Direction) |
Elongation at Break | ≥600% |
Oxygen Index | ≥21% (non-flammable in air) |
Permeability Coefficient | ≤1×10⁻¹² cm/s |
Service Temperature | -70°C to +60°C |
Chemical Resistance | Stable in pH 2–12, resistant to acids, alkalis, and salts |
Weld Strength | ≥85% of base material strength |
UV Resistance | ≥10 years (with anti-UV additive) |
Application fields and products
1. Leachate prevention in tailings ponds: In a large copper mine tailings pond in Australia, LDPE geotextile membranes were used as the anti-leach layer. Their outstanding anti-leaching performance effectively prevented the leakage of tailings wastewater containing heavy metals. After years of monitoring, the surrounding soil and groundwater were not contaminated, protecting the local ecological environment.
2. Anti-pollution of waste residue landfill sites: In an industrial waste residue landfill site in the United States, LDPE geotextile membranes were adopted. Due to their strong chemical stability, they could resist the erosion of acidic and alkaline substances in the waste residue and prevent harmful substances from penetrating into the ground, avoiding pollution of surrounding water bodies and soil, and ensuring regional environmental safety.
3. Anti-leaching of artificial lake bases: In the construction of an artificial lake in a certain city in China, LDPE geotextile membranes were used for base anti-leaching. Their excellent flexibility and high anti-leaching performance prevented lake water from leaking, maintained the lake surface landscape and ecological functions, and at the same time, its convenient construction characteristics shortened the construction period.
4. Anti-leaching of agricultural reservoirs: In an agricultural area in India, an agricultural reservoir used LDPE geotextile membranes, effectively reducing water leakage and maintaining water storage capacity. Facing the local high temperature and strong ultraviolet radiation climate conditions, LDPE geotextile membranes, with their weather resistance, were used for a long-term stable application, helping with agricultural irrigation.
Why choose Haoyang Environment?
The LDPE Geomembrane for Tailings produced by Haoyang Environment has remarkable advantages. It is made from high-quality low-density polyethylene raw materials, which is flexible and can closely adhere to the complex base of the tailings reservoir. The production process is advanced, with an extremely low permeability coefficient for the product, effectively preventing the leakage of tailings liquids. It has excellent chemical stability and weather resistance, can resist acid and alkali erosion and ultraviolet rays, and is easy to install, significantly saving time and costs.
