Nanjing Aquaculture-Specific Geomembrane

Nanjing Landfill, Pond Leakage Prevention, Nanjing Aquaculture Special Geomembrane Closure, Nanjing Aquaculture Special Geomembrane Active Waste Sanitary Landfill Leakage Prevention System Engineering Technical Specification Geosynthetic materials to be used in landfill leakage prevention system engineering include: High Density Polyethylene (HDPE) membranes, geotextiles, GCL, geocomposite drainage nets, etc. The Nanjing aquaculture special geomembrane used in landfill leakage prevention system engineering must comply with the national current standard "High Density Polyethylene Geomembrane for Landfills" CJ/T 234, and also meet the following requirements: 1. Thickness shall not be less than 1.5mm; 2. The width of the membrane should not be less than 6.5m. The geotextile used in landfill leakage prevention system engineering should meet the following requirements: 1. It should be suitable for the characteristics of the leakage prevention system engineering and adapt to the usage environment of the landfill; 2. When used as a protective material for HDPE membranes, non-woven geotextiles should be adopted, with specifications not less than 600g/m²; 3. When used as filter material for blind ditches and leachate collection and drainage layers, specifications should not be less than 150g/m²; 4. The geotextile should have good durability. 4.3.2 The performance indicators of the geotextile should meet the requirements of the national current relevant standards. 4.4.1 The performance indicators of sodium-based bentonite waterproof blanket (GCL) used in landfill leakage prevention system engineering should comply with the national current relevant standards and meet the following provisions: 1. The GCL used in landfill leakage prevention system engineering should have a flat surface, uniform thickness, and no holes or torn edges. Needle-punched products should be uniformly dense, with no residual broken needles; 2. The total mass per unit area should not be less than 4800g/m², of which the mass of bentonite per unit area should not be less than 4500g/m²; 3. The volume expansion of bentonite should not be less than 24mL/2g; 4. Tensile strength should not be less than 800N/10cm; 5. Peel strength should not be less than 65N/10cm; 6. Permeability coefficient should be less than 5×10⁻¹¹m/s; 7. Under a hydrostatic pressure of 0.6MPa for 1 hour, there should be no leakage. Tianjin Hongchen Engineering Materials Co., Ltd. specializes in producing HDPE Nanjing aquaculture special geomembranes and leakage prevention geomembranes. It is a member unit of China's environmental protection and one of the manufacturers of HDPE Nanjing aquaculture special geomembranes in China. From 2009 to 2015, it undertook 40 large landfill leakage prevention projects in Liaoning, Jilin, Heilongjiang, and Inner Mongolia. For landfill leakage prevention projects, choose a strong enterprise like Tianjin Hongchen. The performance characteristics of the HDPE Nanjing aquaculture special geomembrane for landfill closure and leakage prevention are as follows: 1. The HDPE Nanjing aquaculture special geomembrane is a flexible waterproof material with a very high leakage prevention coefficient (1×10⁻¹⁷ cm/s); 2. The HDPE Nanjing aquaculture special geomembrane has good heat resistance and cold resistance, with a usage temperature range of high temperature 110°C; low temperature -70°C; 3. The HDPE Nanjing aquaculture special geomembrane has excellent chemical stability and can resist strong acids, bases, and oils, making it a good anti-corrosion material; 4. The HDPE Nanjing aquaculture special geomembrane has high tensile strength, ensuring it meets the needs of high-standard engineering projects; 5. The HDPE Nanjing aquaculture special geomembrane has strong weather resistance and aging resistance, allowing it to maintain its original performance for extended periods of exposure; 6. The HDPE Nanjing aquaculture special geomembrane adopts three separate feeders, each with different formulations that provide unique performance, enhancing the engineering performance of the HDPE Nanjing aquaculture special geomembrane; 7. The overall performance of the HDPE Nanjing aquaculture special geomembrane exhibits strong tensile strength and elongation at break, allowing it to be used under various harsh geological and climatic conditions; 8. The HDPE Nanjing aquaculture special geomembrane is made from virgin plastics and carbon black particles without any preservatives. 4.5.1 The geocomposite drainage net used in the leakage prevention system engineering should meet the following requirements: 1. The geotextile and geonet in the geocomposite drainage net should be pre-bonded, and the bonding strength should be greater than 0.17kN/m; 2. The geonet in the geocomposite drainage net should preferably be made of HDPE material, with a longitudinal tensile strength greater than 8kN/m and transverse tensile strength greater than 3kN/m; 3. The geotextile in the geocomposite drainage net should comply with the requirements of Section 4.3 of this specification; 4. The hydraulic conductivity of the geocomposite drainage net should consider factors such as creep reduction, geotextile embedding reduction, biological clogging reduction, chemical clogging reduction, and chemical precipitation reduction factors. 4.5.2 The performance indicators of the geocomposite drainage net should comply with the national current relevant standards.