Product Overview

The Landfill Drainage Geonet is an advanced geosynthetic material engineered for use in landfill applications to manage and direct the flow of leachate or other liquids. Composed of a network of polymeric fibers, the geonet forms a three-dimensional drainage structure that promotes fluid flow while preventing soil clogging. The product plays a crucial role in maintaining landfill stability, improving drainage efficiency, and protecting surrounding environments from leachate contamination. It is designed to withstand harsh landfill conditions, including mechanical stress, chemical exposure, and variations in temperature.

Product Features

• High Drainage Efficiency: The geonet provides excellent water flow rates, ensuring the efficient management of leachate and groundwater in landfill sites.
• High Compressive Strength: Engineered to resist high mechanical pressures and loads, it maintains its drainage capacity even under heavy waste cover.
• Durability: Made from UV-resistant and chemically stable materials, the geonet is highly resistant to degradation from exposure to harsh landfill conditions.
• Prevention of Clogging: Its open, three-dimensional structure prevents clogging by allowing liquids to pass freely while filtering out fine particles and debris.
• Environmental Protection: It helps contain and direct leachate, preventing contamination of surrounding soil and groundwater, contributing to environmental sustainability.
• Long-Term Performance: Designed for longevity, the material maintains its drainage capacity over the lifespan of a landfill, ensuring continuous performance and stability.

Product Specifications

• Material Composition: High-density polyethylene (HDPE) or polypropylene fibers, designed to create a three-dimensional drainage structure.
• Thickness: Typically 5-10 mm, with variations depending on the required drainage capacity and load-bearing needs.
• Width: Available in rolls ranging from 1 meter to 6 meters wide, accommodating various landfill sizes and installation requirements.
• Length: Standard roll lengths typically range from 50 to 100 meters, depending on the product specification.
• Drainage Capacity: Capable of handling drainage rates of up to 3-5 liters per second per meter width, depending on the installation angle and soil conditions.
• Tensile Strength: Tensile strength typically ranges from 10-25 kN/m, depending on the specific design and material choice.
• UV Resistance: Designed to resist UV degradation, with a typical UV stability rating of up to 80% over 5000 hours.

Applications

• Landfills: Used as a drainage layer to manage leachate, ensuring it is directed to appropriate collection systems, preventing environmental contamination.
• Waste Containment Systems: Effective in municipal and industrial waste containment applications, supporting leachate collection and groundwater protection.
• Mining Operations: Ideal for managing drainage in tailings ponds, heap leach pads, and other mining waste disposal sites.
• Stormwater Management: Used in stormwater drainage systems to manage excessive water flow and reduce flooding in landfill and other construction sites.
• Environmental Protection: Helps protect the surrounding ecosystem by containing and managing potentially hazardous leachate in waste management sites.

Construction Recommendations

1. Site Preparation: The area where the geonet is to be installed should be smooth, compacted, and free of sharp objects. Ensure the subgrade is prepared to minimize punctures during installation.

2. Installation Method: Unroll the Landfill Drainage Geonet along the designated drainage path, ensuring minimal overlap at the seams. The geonet should be installed with its drainage channels aligned in the direction of the fluid flow to maximize drainage efficiency.

3. Seam and Joint Sealing: Overlap adjacent rolls by at least 30 cm to ensure continuous drainage and prevent leakage through joints. Depending on the application, mechanical or adhesive bonding methods may be used to secure the seams.

4. Protection During Installation: Avoid walking directly on the geonet with sharp objects that may damage the material. Ensure that the geonet is properly covered with soil or other protective layers to prevent exposure to UV rays and physical damage.

5. Backfilling and Covering: Once the geonet is installed, backfill it with a protective layer of soil or gravel to shield it from physical damage and UV exposure. Proper backfilling also helps stabilize the material and prevent displacement during landfill operations.

6. Quality Control: Perform regular checks for integrity during and after installation. Ensure the geonet’s structure is intact and that it is functioning as intended, with no obstructions or leaks in the drainage system.