What is the function of laying geomembrane in landfill?

The main purpose of laying a geomembrane at the bottom of a domestic waste landfill is to prevent garbage from leaking and contaminating groundwater and the surrounding environment, and to protect the safety of water resources and the ecological environment. Here are a few important reasons for laying geomembranes:

Anti-infiltration effect: Domestic garbage contains liquid components, such as wastewater, rainwater, etc. These liquids may penetrate into the ground through the garbage layer, thereby contaminating groundwater. As an anti-seepage layer, geomembrane can effectively prevent liquid leakage in garbage and reduce the risk of groundwater pollution.

Prevent the spread of pollutants: Domestic waste may contain harmful substances, such as heavy metals, organic matter, etc. If these contaminants spread into surrounding soil, groundwater, or surface water, they can have serious impacts on the environment and ecosystems. Laying geomembrane can prevent the spread of these pollutants and protect the safety of water resources and ecological environment.

Improve the stability of the landfill: As an anti-seepage layer, geomembrane can reduce ground collapse, settlement and other problems caused by garbage leakage, and improve the stability and safety of the landfill.

Extend the life of the landfill: By effectively preventing leakage of garbage and the spread of pollutants, laying geomembranes can extend the life of the landfill. Reduce environmental risks from landfills and delay landfill filling and closure times.

In summary, laying geomembranes in domestic waste landfills plays an important role in preventing penetration, preventing pollution, protecting water resources, and improving the stability of the landfill. It is a necessary measure to ensure the environmental safety of the landfill.