Best Price Waterproof Membrane 0.75mm virgin/Recycle Root Barrier in Kuwait
HDPE Geomembrane Specification
| Tested Item |
Test Method |
Frequency |
Minimum Average Value |
| |
RH0.50
mm |
RH0.75
mm |
RH1.00
mm |
RH1.50
mm |
RH2.00
mm |
| Thickness, (minimum average), mm Lowest individual reading |
ASTM D 5199 |
every roll |
0.50
0.48 |
0.750
0.735 |
1.00
0.96 |
1.50
1.47 |
2.00
1.95 |
| Density, g/cm3 |
ASTM D 1505 |
90,000 kg |
0.940 |
0.940 |
0.940 |
0.940 |
0.940 |
Tensile Strength at Break, N/mm
Strength at Yield, N/mm
Elongation at Break, %
Elongation at Yield, % |
ASTM D 669
|
9,000 kg |
13
7
700
12 |
20
11
700
12 |
27
15
700
12 |
40
22
700
12 |
53
29
700
12 |
| Tear Resistance, N |
ASTM D 1004 |
20,000 kg |
60 |
93 |
125 |
187 |
249 |
| Puncture Resistance, N |
ASTM D 4833 |
20,000 kg |
160 |
240 |
320 |
480 |
640 |
| Carbon Black Content, % (Range) |
ASTM D 603*/4218 |
9,000 kg |
2.0 - 3.0 |
| Carbon Black Dispersion |
ASTM D 5596 |
20,000 kg |
Note(1) |
Note(1) |
Note(1) |
Note(1) |
Note(1) |
| Notch Constant Tensile Load, hr |
ASTM D 5397, |
90,000 kg |
300 |
300 |
300 |
300 |
300 |
| Oxidative Induction Time, min |
ASTM D 3895, |
90,000 kg |
>100 |
>100 |
>100 |
>100 |
>100 |
How does a copper mine leach pad work?
A copper leach pad is a large, lined area used to extract copper from ore through a process called leaching. A leach pad is essentially a large pile of crushed ore that has been sprayed with a solution of water and sulfuric acid. Over time, the acid dissolves the copper in the ore and filters down through the pads, collecting in a collection pond at the bottom.
The leaching process begins with preparing the ore for processing. The ore is crushed and then stacked onto leach pads and spread out in layers about one meter thick. The pad is lined with a synthetic membrane or natural clay layer to prevent chemicals from seeping into the ground.
Once the ore is in place on the leach pad, a drip irrigation system is used to spray the solution over it, distributing the acid solution evenly over the surface. The solution then penetrates the layers of ore, dissolving the copper. When the solution collects at the bottom of the pad, it is pumped to a collection tank where the copper is extracted and further processed.
The leach pad process is a cost-effective method of extracting copper from low-grade ores. The leaching process typically takes several months to complete, depending on the size and quality of the ore pile. After copper is extracted, the residue left on the leach pad is often used as backfill or other applications.
What happens to the waste from copper mine leach pads?
Waste generated from copper leach fields often undergoes a variety of treatments and processes before being properly disposed of.
A common approach is to confine waste to landfills, which are lined with impermeable material to prevent any leaching or contamination of surrounding soil and water sources.
Another common method of waste disposal is to incorporate it into tailings. Tailings are essentially the residue left behind after ore processing and extraction of valuable metals. By adding leach pad waste to the tailings, the overall amount of waste can be reduced and the remaining material consolidated into one location.
Both methods are effective in safely and responsibly treating waste generated from copper mine leach pads. While mining operations certainly pose environmental concerns, today's modern mining practices are designed to minimize impacts on surrounding ecosystems and natural resources.
The Future of Geomembranes for mine
1. Improved materials: There is an ongoing push to develop more advanced and sustainable geomembranes. Researchers are experimenting with new materials such as geosynthetic clay liners, which are more environmentally friendly than traditional polyethylene liners.
2. Increased usage: As the mining industry grows and becomes increasingly reliant on geomembranes, the demand for these materials is expected to increase significantly. Increased usage will drive innovative and cost-effective solutions, making geomembranes more accessible and affordable.
3. Technological progress: With the application of new technologies such as robots and drones, the installation and maintenance of geomembrane liners has become easier and more efficient. This means mines save money and time while also protecting the environment.
4. Environmental compliance: There is increasing pressure from regulators and the public to minimize the impact of mining operations on the environment. Geomembranes offer a reliable and effective way to prevent soil and water contamination, which will help mines achieve their sustainability goals.
HDPE Geomembrane Packing and Delivery
1. The products are usually tied with packing tape.The packaging size and container capacity of the product are different from the product specifications
2. Container transportation, according to your project request.
3. Port: Qingdao, China.
Tai'an City RuiHeng Building Materials Co., Ltd is specialized in the research, development, production and sales of geosynthetic materials, plastic products and plastic machinery. Our company is devoted to geosynthetic material research and development and application.
Our main products are hdpe geomembrane liner,plastic geogrid, geotextile,3D geomat,geocell,geomembrane welding machine,extrusion welder and welding rod,etc. Our products have been widely used by clients in more than 20 countries and regions. Our products are applied in aquaculture, railways, highways, water conservancy, electric power, metallurgy, ports and municipal engineering construction. We have won the praises of customers.
1. What are the advantages of using HDPE geomembrane?
The advantages of using HDPE geomembrane include its durability, flexibility, and resistance to chemicals and UV radiation. It is also cost-effective and environmentally friendly.
2. Why is HDPE geomembrane used in gold mining heap leaching liner?
HDPE geomembrane is used in gold mining heap leaching liner because it provides a reliable and chemically resistant barrier for the containment of hazardous chemicals used in the leaching process.
3. What are the environmental concerns associated with heap leaching in gold mining?
Environmental concerns associated with heap leaching in gold mining include the potential for contamination of groundwater and surface water with hazardous chemicals used in the leaching process.
4. How does HDPE geomembrane help mitigate environmental concerns in gold mining heap leaching?
HDPE geomembrane helps mitigate environmental concerns in gold mining heap leaching by providing a reliable barrier for the containment of hazardous chemicals used in the leaching process.
5. What are the specifications for HDPE geomembrane used in gold mining heap leaching liner?
The specifications for HDPE geomembrane used in gold mining heap leaching liner vary depending on the specific application, but typically include thickness, permeability, and chemical resistance.
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