The Magical Use of Geomembrane in Soil Remediation
Soil pollution, water pollution, air pollution and other issues are a systemic problem: both groundwater and surface water will come into contact with soil, and various pollutants contained in the air will also infiltrate into the surface through forms such as rainfall, eventually causing soil and groundwater pollution. Although soil and groundwater pollution is invisible and intangible, it has a huge impact on people's daily life. Not only vegetables and fruits grown on polluted farmland may absorb and enrich the pollutants in the soil, causing harm to the human body after being eaten by humans. Further polluted soil has a great impact on groundwater, and if it is not repaired in time, it will spread for a long time. With the development of urbanization, more and more factories have been relocated, leaving a large area of contaminated soil, which not only affects the redevelopment and utilization of land, but also directly pollutes people's underground drinking water sources.
Therefore, as a very effective anti-seepage material, geomembrane has begun to be widely used in the field of soil remediation. Whether it is using curing treatment, chemical, biological treatment technology or thermodynamic repair technology, etc., it may be necessary to use geomembrane to isolate the contact between harmful substances and groundwater.
Geomembranes, waterproof blankets, geotextiles, geogrids and other geotechnical materials are widely used in land and soil reconstruction and restoration projects. Geomembrane, also known as anti-seepage membrane, plays a key role in anti-seepage and isolation in the main anti-seepage system. Of course, the environmentally friendly decomposition materials used with the geomembrane include bentonite waterproof blankets, geotextiles and geogrids and other geotechnical materials. Geomembrane has high longitudinal and transverse tensile strength, high elongation at break, high right-angle tear strength, long water vapor permeability coefficient, good low temperature impact embrittlement, high puncture resistance, anti-ultraviolet, anti-aging, dimensional stability. Excellent and other functional characteristics, it has great "power" in land soil restoration.
Both rural and urban areas are facing very serious land pollution problems. Since the 1960s, especially during the period of reform and opening up, the state has vigorously developed industries in cities and rural areas, such as the construction of some high-polluting enterprises. At that time, the factories were mainly concentrated around the city. Today, these old enterprises are not environmentally friendly. facilities, so the land and soil pollution is very serious. Pollutants and rainwater infiltrate into the soil layer to form leachate. In severe cases, it will enter groundwater and cause pollution to groundwater sources. At the same time, the discharged heavy metals will seriously pollute the surrounding land and soil, posing a threat to people's health. With the development of modern cities, most factories have been relocated, leaving large tracts of polluted land, which not only affects the re-development and utilization of soil, but also causes destructive pollution to people's drinking water source and groundwater. Therefore, geomembrane is a particularly effective anti-seepage environmental protection geomaterial, which is widely used in soil remediation projects. Regardless of whether biological, chemical treatment methods or thermal repair methods are used, geomembranes should be used as the main body of anti-seepage and isolation to isolate the contact between harmful pollutants and groundwater.