Edited by Lucia-Haoyang Environmental Co.,Ltd

I. The Chilean Mining Landscape and Environmental Imperatives

1. Chile's Dominance in the Global Mining Sector

Chile is a major player in global mining. In 2024, it produced around 28% of the world's copper. Mining also contributes about 10% to its GDP, highlighting its economic significance. However, this large - scale mining brings environmental challenges.

2. Environmental Hazards Posed by Mining Activities

Mining in Chile has led to pollution issues. Nearly 30% of water sources near northern mining areas have high levels of heavy metals, endangering the ecosystem and local communities. There's an urgent need for solutions to contain mining waste and stop further pollution.

3. The Role of HDPE Geomembrane Liners in Environmental Protection

HDPE geomembrane liners act as a crucial barrier against mining - related pollution. They prevent harmful substances from leaking and are used in various mining facilities. Properly installed, they can cut contaminant leakage by up to 99%. Haoyang Environmental Co.,Ltd offers top - notch HDPE geomembrane liners for such needs in Chile.

II. Haoyang's HDPE Geomembrane: Unrivaled Performance Standards

1. Exceptional Tensile Strength

According to both the Chinese standard GB/T17643 - 2011 and the US standard GM13, HDPE geomembranes for mining applications need to meet specific tensile strength criteria. Haoyang Environmental Co.,Ltd's HDPE geomembranes far exceed these requirements. In a large - scale copper mining project in the Atacama region, our geomembranes with a tensile strength of 38 N/mm at break have proven their durability under the stress of heavy mining waste, ensuring long - term performance and reliability.

2. Ultra - Low Permeability

Permeability is a key factor in the effectiveness of HDPE geomembranes. In the arid climate of Chile, where water scarcity is a major concern, minimizing permeability is of utmost importance. Haoyang's HDPE geomembranes have an extremely low permeability rate, well below the standards set by both GB/T17643 - 2011 and GM13. In a lithium mining project in Argentina, our geomembranes, with a permeability of 3×10⁻¹² cm/s, effectively prevented the loss of precious mine water and the leakage of contaminants.

3. Superior Chemical Resistance

Mining waste in Chile often contains a complex mix of chemicals, especially in copper and other metal mining operations that use acidic leaching agents. Haoyang's HDPE geomembranes, designed to meet and exceed the GM13 standard, can resist the corrosion of most common mining chemicals for over 25 years. In a copper mining project in Zambia, our 1mm HDPE geomembrane liners have been in use for 18 years and still show no signs of significant chemical degradation, ensuring continuous protection of the environment.

III. Diverse Types of Haoyang's HDPE Geomembrane Liners for Chilean Mining

1. Smooth HDPE Geomembranes: Cost - Effective and Efficient

Smooth HDPE geomembranes from Haoyang are cost - effective and easy to install. Their smooth surface aids water drainage in tailings dams, reducing hydrostatic pressure. In mining projects, common thicknesses range from 1.0 mm to 2.0 mm.

For instance, in the copper and cobalt mining project in Congo, a 1.5 - mm - thick smooth HDPE geomembrane from Haoyang was used. This thickness provides a good balance between cost and performance, ensuring reliable containment of tailings.

2. Textured HDPE Geomembranes: Enhanced Frictional Resistance

In steep - slope areas like the Andes in Chile, Haoyang's textured geomembranes are ideal. They boost frictional resistance by up to 35%, preventing waste rock movement, as shown in the El Indio gold mining district. These textured geomembranes typically come in thicknesses of 1.5 mm to 2.5 mm. The increased thickness helps in withstanding the higher stress levels associated with steep - slope applications.

3. Composite HDPE Geomembranes: Combining Strength and Impermeability

Haoyang's composite geomembranes, with HDPE impermeability and geotextile strength, are great for high - stress, low - permeability needs. In the Los Pelambres copper - molybdenum mine, they protected mine water treatment ponds from punctures and ensured water - tightness. Composite HDPE geomembranes used in Chilean mining often have an HDPE layer thickness of 1.0 mm to 1.5 mm, combined with a geotextile layer of appropriate weight. The geotextile layer can range from 200 g/m² to 600 g/m², depending on the specific requirements of the mining site.

IV. Hassle - Free Installation and Maintenance with Haoyang's HDPE Geomembranes

1. Professional Installation Process

Haoyang follows a strict installation process. First, the base is carefully prepared. Then, the geomembrane is unrolled and seams are welded using advanced techniques. Over 98% of seams pass non - destructive testing.

2. Rigorous Quality Control during Installation

Quality control includes visual inspection, seam strength testing, and leak detection. In large - scale copper mines, over 99% of the installation area passes leak tests.

3. Low - Cost Maintenance Requirements

Annual inspections are recommended. Haoyang can quickly repair any damage, like punctures. Maintenance costs are low compared to replacement, making our products cost - effective in the long run.

V. Market Growth and Why Haoyang Leads in Chile

1. Future Growth Projections

The market is set to grow 8% annually for the next five years, driven by new and expanding mines. With the annual production capacity over 100 000 tons, Haoyang is well - placed to meet this growing demand.

2. Why Choose Haoyang Environmental Co.,Ltd

In conclusion, Haoyang Environmental Co.,Ltd's HDPE geomembrane liners are the go - to choice for Chilean mining projects. Our products offer high performance, cost - effectiveness, and durability. Choose Haoyang for a sustainable and efficient mining operation.

1.5mm geomemrbane test report.pdf

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