Application of HDPE geomembrane in tailings seepage prevention
Tailings treatment is a crucial link, tailings as a kind of industrial waste easy to pollute the environment, especially some tailings as the second class of industrial waste, must be done seepage prevention treatment. Among them, the seepage prevention work is the most important thing. HDPE geomembrane is widely used in tailings seepage control because of its excellent performance.
HDPE geomembrane has good chemical stability and corrosion resistance, and can effectively resist the erosion of various chemicals in the tailings. Its low permeability can greatly reduce the leakage of tailings leachate and reduce the pollution risk to the surrounding environment.
In the construction process, first of all, the construction site needs to be leveled and clean, remove sharp objects and debris, to ensure that the base is solid and smooth.
Next is the HDPE geomembrane laying. Pay attention to the unfolding direction and lap mode of the film when laying. The lap is usually welded to ensure the sealing of the connection. In order to enhance the stability of the geomembrane, it is also necessary to lay a certain thickness of the protective layer on the film, such as sand, gravel, etc. At the same time, a perfect drainage system should be set up to remove the water on the membrane in time to prevent the water pressure from damaging to the geomembrane. The reasonable design of blind drainage ditch and collecting well can effectively solve the drainage problem and guarantee the long-term stable operation of geomembrane to a certain extent.
After the completion of construction, strict quality inspection, including appearance inspection, weld inspection, leakage detection, etc. Only through the testing project, can we ensure the effect of seepage prevention of tailings.
The construction application of HDPE geomembrane in tailings seepage prevention needs to strictly follow the construction specifications and technical requirements, careful construction and strict testing, so as to give full play to its seepage prevention role, protect the ecological environment, and realize the sustainable development of mining industry.
