Geomembrane is an important geosynthetic material primarily used to prevent the infiltration of liquids or gases and provide a physical barrier. It is usually made of plastic film, such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polyvinyl chloride (PVC), ethylene vinyl acetate (EVA) or ethylene vinyl acetate modified asphalt (ECB), etc. It is sometimes used in combination with non-woven fabric or other types of geotextiles to enhance its stability and protection during installation.
Geomembranes have a wide range of applications in various fields, including but not limited to the following:
1. Environmental protection:
Landfill site: prevent leachate leakage and pollution of groundwater and soil.
Hazardous waste and solid waste disposal: prevent the leakage of harmful substances in storage and treatment facilities.
Abandoned mines and tailings storage sites: prevent toxic minerals and wastewater from infiltrating the environment.
2. Water conservancy and water management:
Reservoirs, dams, and channels: reduce water infiltration losses and improve water resource utilization efficiency.
Artificial lakes, swimming pools, and reservoirs: maintain water levels, reduce evaporation and leakage.
Agricultural irrigation system: prevent water loss during transportation.
3. Buildings and infrastructure:
Tunnels and basements: prevent groundwater infiltration.
Underground engineering and subway projects: Provide waterproof barriers.
Roof and basement waterproofing: prevent moisture from entering the building structure.
4. Petroleum and chemical industry:
Oil storage tanks and chemical storage areas: prevent leaks and avoid environmental pollution.
5. Agriculture and Fisheries:
Aquaculture ponds: maintain water quality and prevent nutrient loss.
Farmland and greenhouse: serving as a water barrier to control the distribution of water and nutrients.
6. Mines:
Heap leaching tank, dissolution tank, sedimentation tank: prevent chemical solution leakage and protect the environment.
The selection and use of geomembranes will be determined based on specific application scenarios and environmental requirements, such as material type, thickness, size, and chemical resistance. Factors such as performance, durability, and cost.
Post time: Oct-26-2024