Manufactured using virgin high-density polyethylene (HDPE) resin compounded with UV stabilizers, antioxidants, carbon black, and acid/alkali-resistant additives via a specialized extrusion-blow molding process, Landfill Waste Containment Geomembrane is a specialized impermeable material designed to prevent seepage and leakage-related pollution in tailings storage facilities. The product features exceptional puncture resistance, high tensile strength, strong corrosion resistance, and long-lasting aging resistance. Available in standard burial-grade and specialized UV-resistant (exposed) versions, it is suitable for demanding applications such as tailings storage, leachate collection, rainwater diversion, and subsurface isolation. It effectively prevents tailings leachate from seeping into and contaminating soil and groundwater, serving as a core impermeable material for the construction, closure remediation, and capacity expansion of mine tailings facilities. Tongfu is a manufacturer and supplier of professional Weed Barrier Fabric, Geomembrane Liner, and Concrete Blanket Mat in China. Welcome to come for consultation and purchase.
Core Technical Specifications
1. Common Thickness Specifications
Temporary diversion ditches, diversion channels, and simple leachate collection ponds for tailings dams: 1.0mm, 1.2mm HDPE geomembrane
Primary lining for the base and slopes of small-to-medium tailings dams: 1.5mm, 2.0mm HDPE geomembrane (industry-standard specifications)
Large tailings dams, highly corrosive tailings, high-load/high-drop scenarios, and conditions with sharp rocks prone to puncture: 2.5mm, 3.0mm heavy-duty geomembrane
Exposed surface covers and closure caps: Custom-formulated geomembrane with high anti-aging additives for long-term resistance to sunlight and temperature fluctuations
2. Key Performance Parameters
Impermeability: Permeability coefficient ≤ 1×10⁻¹³ cm/s; effectively blocks the downward seepage of leachate, heavy metal ions, and contaminated wastewater, protecting groundwater and soil environments
Mechanical Properties: Excellent tensile strength at break and tear resistance; accommodates tailings settlement and slope creep; resists tearing or damage during mechanical installation and compaction
Corrosion Resistance: Resistant to strong acids, strong alkalis, heavy metal salts, and corrosive tailings slurry/wastewater; suitable for environments involving various non-ferrous metal and non-metallic tailings
Weather and Aging Resistance: UV-resistant formulation; service life of 10–18 years for exposed applications and over 30 years for buried applications
Puncture Resistance: High-strength puncture-resistant structure; withstands damage from crushed stones and angular slag; resists puncture risks caused by the pressure of stacked tailings
Low-Temperature Adaptability: Geomembrane capable of withstanding low temperatures down to - Resistant to cracking at -40°C; the membrane structure remains stable under conditions of winter frost heave and repeated temperature fluctuations in high-altitude, cold regions.
Applications of Landfill Waste Containment Geomembrane
1. Mining and Tailings: Impermeable lining for the base and slopes of tailings ponds (iron, gold, aluminum, coal, sand/gravel, etc.); surface capping for pond closure and ecological remediation; impermeable isolation for tailings leachate equalization tanks, collection wells, and diversion galleries.
2. Solid and Hazardous Waste Disposal: Impermeable isolation for industrial waste residue, ash, steel slag, and smelting residue stockpiles to prevent soil and water pollution caused by leachate.
3. Environmental Protection & Containment: Impermeable lining for landfills, sewage treatment equalization tanks, emergency containment ponds, sedimentation tanks, and chemical waste collection pools.
4. Ancillary Protection Works: Impermeable lining for flood discharge and interception channels; slope protection and isolation; impermeable systems for rainwater collection at storage yards.
Field Case Study: Performance of Anti-Seepage Membrane in a Shandong Mine Tailings Pond After 3 Years
Basic Information
Location: Remediation project for a metal mine tailings pond in Yantai, Shandong; total area of 180 mu (approx. 12 hectares), comprising a main storage area, leachate collection pond, and supporting interception/drainage channels.
Installation Date: April 2022. Product Used: 2.0mm thickened, anti-aging HDPE anti-seepage membrane specifically designed for tailings, installed as part of a composite system featuring a protective layer of filament/staple fiber geotextile and a bentonite waterproofing blanket.
Operating Environment: Exposed to the elements year-round; temperature ranges from a summer high of 38°C to a winter low of -15°C; annual rainfall of approx. 660mm. Tailings contain mildly acidic/alkaline leachate; the original soil base at the pond bottom is highly permeable, posing a risk of groundwater contamination.
Actual Performance Results
1. Long-term stable anti-seepage performance; no aging, damage, or leakage. After three full years of service, the membrane shows no signs of aging, cracking, chalking, or punctures; heat-welded seams on slopes and the pond bottom remain intact and secure. It completely blocks leachate from penetrating the underlying soil, and pollutant levels at groundwater monitoring points consistently meet standards, effectively resolving previous environmental risks associated with leakage.
2. Increased leachate recovery and reduced O&M costs. Leachate is channeled directly into the collection pond for centralized treatment, eliminating losses due to underground seepage. Costs for wastewater treatment chemicals and energy consumption have dropped by 32% year-on-year, while additional engineering expenses for routine leak detection and remediation have been eliminated.
3. Enhanced slope stability and resistance to extreme weather. The slope membrane shows no slippage, bulging, or tearing during heavy rains or flood-season torrents. It exhibits no shrinkage or cracking under freeze-thaw cycles and demonstrates excellent resistance to deformation caused by tailings settlement and the pressure of stacked materials. 4. Corrosion and slurry erosion resistance; exceptional long-term durability. Even with prolonged exposure to acidic tailings leachate and immersion in slag, the geomembrane shows no signs of corrosion, swelling, degradation, or deterioration. Compared to standard thin geomembrane materials, it offers significant advantages in service life and protective performance.
Customer Feedback
"The soil at the original tailings pond was highly permeable; downward leachate seepage created immense environmental pressure and required substantial annual investment for remediation and leak sealing. After installing this Landfill Waste Containment Geomembrane three years ago, the anti-seepage performance has remained consistently stable, and all environmental inspections have passed successfully. Although I was initially concerned that sharp slag or UV exposure might puncture the membrane, it has proven to be robust and durable in actual use, with no issues arising at the welded seams. Whether for daily operations or future closure and remediation, this anti-seepage solution offers excellent cost-effectiveness."
— Mr. Zhang, Project Manager, Tailings Pond Project
