At present, the treatment of domestic garbage in China is to use the sanitary landfill method to pile up the garbage in the landfill site. Landfills generally use the way of layered soil landfill to dispose of garbage, accumulate a layer of garbage and then covered with a layer of loess, which is easy to reduce the pollution of garbage. Urban domestic waste landfill is to isolate garbage from the surrounding environment (groundwater, air and rainwater). This isolation was achieved by bentonite waterproof blankets at the bottom, linings such as polyester filament geotextile and polyethylene geomembrane, with daily soil coverage. The application of polyester filament geotextile in landfill not only effectively protects polyethylene anti-seepage geomembrane from external damage, but also prevents the settlement of landfill due to garbage. Silk geotextile has good mechanical function, good water permeability, and can resist corrosion, aging resistance, with isolation, reverse filtration, drainage, protection, stability, reinforcement and other functions, can adapt to the uneven base, can resist the construction of external force damage, small creep, can still maintain the original function under long-term load. With high strength, the same weight specification, isotropic tensile strength is higher than other acupuncture non-woven fabric, with high ultraviolet resistance, high temperature resistance of 230℃, high temperature still maintain the structure of the original physical properties, geotextile thick and needle molding, with good plane drainage and vertical permeability, many years still can maintain this performance, geotextile creep resistance to other geotextile, so good long-term effect. It can withstand the erosion of common chemicals in the soil to resist the corrosion of gasoline, diesel oil, geotextile has a good extension rate under a certain stress, so that it can adapt to the uneven irregular base surface. Polyester filament geotextile has been widely used in domestic landfills since 2003.

The advantages of filament geotextile over other geotextiles

Polyester filament geotextile is directly made of polyester method by spinning needle prick consolidation, the product specifications from 100-800g / m2 arbitrary choice, it is a geotechnical material and geosynthesis, is made by polyester filament mesh and consolidation, its fiber arranged into three-dimensional structure, no chemical additives, without heat treatment, is a type of building material.
It can replace the traditional engineering material construction methods, construction safety, and contribute to environmental protection, can economically, effectively and persistently solve the basic problems in the engineering construction. In addition to its good mechanical properties, polyester filament geotextile also has good vertical and horizontal drainage properties and high chemical stability properties of biological resistance, acid and alkali resistance, and aging resistance. At the same time, it also has a wide aperture range, tortuous pore distribution, good permeability and filtering performance. In contrast, the polyester filament geotextile is more powerful than the other geotextiles!