Geosynthetic Clay Liners( GCL) Landfill Liner
A Geosynthetic Clay Liner (GCL) landfill liner is a composite liner system designed to provide effective containment and environmental protection in waste disposal facilities. Consisting of a layer of bentonite clay sandwiched between two geotextile layers, GCLs offer a combination of hydraulic performance, chemical resistance, and self-sealing properties. The geotextile layers provide filtration, separation, and reinforcement, while the bentonite clay swells upon contact with water, forming a low-permeability barrier that prevents the migration of contaminants such as leachate. GCL landfill liners are widely used in landfill applications to minimize the impact of waste on the surrounding environment, ensuring long-term containment and regulatory compliance in waste management operations.
Advantages:
1.Excellent hydraulic performance: GCLs have a low hydraulic conductivity, meaning they effectively prevent the migration of liquids and gases through the liner system. This helps to contain leachate, preventing contamination of the surrounding soil and groundwater.
2.Chemical resistance: GCLs are highly resistant to a wide range of chemicals, including acids, bases, and organic solvents. This ensures that the liner remains intact and continues to provide effective containment even in harsh landfill environments.
3.Self-sealing properties: The bentonite clay within the GCL swells upon contact with water, creating a self-sealing barrier that helps to seal any potential punctures or gaps in the liner. This enhances the overall integrity of the liner system and reduces the risk of leakage.
4.Easy installation: GCLs are lightweight and flexible, making them easy to handle and install. They can be quickly deployed on-site, reducing construction time and costs.
5.Cost-effective: Compared to traditional clay liners, GCLs offer a more cost-effective solution for landfill lining. They require less excavation and disposal of clay materials, resulting in lower material and labor costs.
6.Long-term stability: GCLs are designed to withstand long-term exposure to environmental conditions, including UV radiation, temperature variations, and mechanical stresses. They provide a durable and reliable barrier system for landfill applications.
Overall, GCL landfill liners provide an efficient and sustainable solution for waste containment, ensuring the protection of the environment and compliance with regulatory requirements.
Technical Data:
Test ltem | Test Properties | Unit | GCL4 | GCL5 | GCL5 | GCL7 | GCL8 |
Weight | g/㎡ | 400 | 500 | 600 | 700 | 800 | |
Film Thickness | Mm | 0.25-0.35 | 0.30-0.50 | ||||
Mechanical Properties | Break Strength | kN/m | 5.0 | 7.5 | 10.0 | 12.0 | 14.0 |
Break Elongation | % | 30-100 | 30-100 | 30-100 | 30-100 | 30-100 | |
CBR Burst Strength | KN | 1.1 | 1.5 | 1.9 | 2.2 | 2.5 | |
Tear Resistance | KN | 0.15 | 0.25 | 0.32 | 0.40 | 0.48 | |
Peel Strength | N/cm | ≥6 | ≥6 | ≥6 | ≥6 | ≥6 | |
Hydrostatic Pressure | Film Thickness | Mm | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 |
One cloth one film | Mpa | 0.4 | 0.5. | 0.6 | 0.8 | 1.0 | |
Two cloth one film | Mpa | 0.5 | 0.6 | 0.8 | 1.0 | 1.2 | |
Application:
Geosynthetic Clay Liners (GCL) landfill liners find wide application in various landfill settings for effective containment and environmental protection. Some common applications of GCL landfill liners include:
1.Municipal solid waste landfills: GCL liners are commonly used in municipal solid waste landfills to prevent the migration of leachate into the surrounding soil and groundwater. They provide a reliable barrier system that helps to contain and manage the waste effectively.
2.Hazardous waste landfills: GCL liners are also utilized in hazardous waste landfills where the containment of toxic substances is critical. The chemical resistance and self-sealing properties of GCLs make them suitable for handling a wide range of hazardous materials.
3.Industrial waste landfills: Industrial facilities generating various types of waste often require specialized containment systems. GCL landfill liners offer a cost-effective and efficient solution for containing industrial waste and preventing environmental contamination.
4.Construction and demolition debris landfills: GCL liners are used in construction and demolition debris landfills to control the leachate generated by the decomposition of waste materials. They help to maintain the integrity of the landfill structure and protect the surrounding environment.
5.Coal ash disposal facilities: GCL liners are employed in coal ash disposal facilities to prevent the leaching of toxic substances from coal combustion residuals. The chemical resistance of GCLs is particularly beneficial in these applications to ensure long-term containment.
6.Closure and capping systems: GCL landfill liners are also used in closure and capping systems for landfills that have reached their capacity. They provide a final barrier to seal off the waste and minimize potential environmental impacts.
Overall, the versatility and effectiveness of GCL landfill liners make them a preferred choice for a wide range of landfill applications, ensuring the safe containment and management of waste materials while protecting the surrounding environment.
Packaging:
Customer's company Logo mark can be added.
Packed in woven bags.
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