Changsha Jian-Yi New Material Co., Ltd.
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Smooth Geomembrane for Tailings Management
Product Overview
Our smooth geomembrane is a robust, impermeable barrier engineered for tailings storage facilities (TSFs), mine waste containment, and industrial waste management. Crafted from high-density polyethylene (HDPE), this geomembrane delivers unmatched resistance to harsh chemicals, extreme environmental conditions, and mechanical stress, ensuring long-term containment of toxic materials and compliance with environmental regulations.
Key Features & Benefits
Superior Chemical Resistance
Hazardous Material Containment: Resists acids, alkalis, heavy metals, and leachates commonly found in mining and industrial waste.
Zero Permeability: Ultra-low permeability coefficient (<1×10⁻¹³ cm/s) prevents contaminant migration to soil and groundwater.
High Mechanical Strength
Puncture & Tear Resistance: Withstands pressure from sharp rocks, equipment, and settling tailings (Tensile Strength: ≥30 MPa).
Dimensional Stability: Maintains integrity under heavy loads and hydraulic stress.
UV & Temperature Resilience
Carbon-black stabilized for UV resistance, suitable for extreme temperatures (-50°C to +80°C) and prolonged outdoor exposure.
Environmental Compliance
Safeguards ecosystems by preventing toxic leakage, aligning with global mining sustainability standards.
Non-reactive and inert, ensuring no secondary contamination.
Cost-Effective & Durable
30+ year service life reduces long-term replacement costs.
Compatible with geotextiles and drainage layers for composite liner systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Virgin HDPE with UV Stabilizers |
| Thickness | 1.5mm–3.0mm (recommended for tailings) |
| Width | Up to 8m (standard); custom widths available |
| Color | Black (UV-resistant) |
| Tensile Strength | ≥14 MPa (MD/TD) |
| Permeability Coefficient | <1×10⁻¹³ cm/s |
| Temperature Range | -70°C to +70°C |
Applications
Tailings Dams & Ponds: Securely contain mining waste and prevent groundwater pollution.
Heap Leach Pads: Resist corrosive chemicals in gold, copper, and uranium extraction.
Industrial Waste Landfills: Line hazardous waste storage sites.
Acid Rock Drainage (ARD) Control: Block sulfide oxidation and acidic runoff.
Installation Guidelines
Subgrade Preparation: Compact and level the base; remove protrusions; add protective geotextile if required.
Liner Deployment: Unroll geomembrane with minimal wrinkles; overlap seams by 10–15 cm.
Seam Welding: Use dual-track hot wedge welding or extrusion methods for leak-proof joints.
Anchoring & Covering: Secure edges in anchor trenches; cover with soil or ballast to prevent wind uplift.
Quality Assurance: Conduct electrical spark testing or vacuum tests to verify seam integrity.
Why Choose Our Geomembrane?
✅ Certified Performance: Complies with CE and ISO9001 guidelines for industrial containment.
✅ Tailored Solutions: Customize thickness, additives (e.g., antistatic agents), and multi-layer composite systems.
✅ Global Expertise: Proven success in mining projects across diverse climates and terrains.
FAQ
Q: Can it withstand acidic leachates from sulfidic tailings?
A: Yes, HDPE is highly resistant to pH extremes (pH 1–14) and corrosive chemicals.
Q: What thickness is recommended for high-pressure tailings dams?
A: 2.0mm–3.0mm, combined with geotextile protection, ensures optimal performance.
Q: Is it recyclable?
A: HDPE is 100% recyclable, supporting sustainable mine closure practices.
Certifications & Warranty
CE, ISO 9001, and Mine Safety & Health Administration (MSHA) compliant.
40-60-year limited warranty against material defects.Depends on the project.