Anti seepage treatment project of tailings pond

　　Temporary anti-seepage treatment plan for tailings pond (geotextile membrane), anti-seepage membrane When selecting geotextile membrane for tailings dam engineering, the following factors should be considered: low permeability, high tear resistance, puncture resistance, chemical corrosion resistance, it can adapt to temperature changes, high durability, anti-seepage membrane construction, landscape river anti-seepage, sewage pool anti-seepage, landfill anti-seepage, metallurgical and mining anti-seepage, aquaculture anti-seepage, building waterproof, canal anti-seepage, leachate anti-seepage, chemical sewage anti-seepage, and wastewater pool anti-seepage, Geomembrane manufacturer Hengrui pays attention to the increasing accumulation of tailings with the continuous mining of the mine.

　　Every year, a large amount of funds are needed to build and maintain tailings ponds, but there is still a risk of dam failure and pollution in tailings ponds. The anti-seepage geotextile film for tailings ponds, as well as the greening of slopes and high slopes, has become increasingly important as the country's requirements for environmental protection and safety in mines. It is urgent to address the issue of anti-seepage in tailings ponds, which has troubled many mine owners. The anti-seepage film for tailings ponds does not leak, solving their worries for the future.

　　Due to the fact that the tailings pond is a high-risk source of artificial debris flow with high potential energy, there is a risk of dam failure, and once it fails, it is easy to cause major accidents. The tailings pond covers a large area and contains a large amount of toxic and harmful substances, with a large amount of tailings. It is necessary to be very meticulous in terms of anti-seepage and leakage prevention in order to cut off pollution. Once a leak occurs, the consequences are unimaginable.

　　In order to avoid leakage of waste liquid in tailings ponds, geotextile film is often used as a bottom layer for anti-seepage. However, due to the large amount of heavy metals in waste liquid and tailings sand in copper tailings ponds, anti-seepage measures should be taken. The upper inclined wall is covered with geotextile film for anti-seepage, and the lower part is connected to the vertical anti-seepage wall, reaching an elevation of 358.0m (0.97m higher than the check flood level)

　　Due to its excellent anti-seepage effect and relatively long service life, geotextile membranes need to be used together with anti leakage and reverse drainage in tailings treatment. Anti leakage requires the use of HDPE anti-seepage membranes with a thickness of no less than 1.0mm. Some new wet tailings storage construction projects use 1.5mm thick HDPE anti-seepage membranes. In March of this year, the dry storage and leakage prevention of tailings in Tangshan, Hebei Province were implemented using a 2.0mm thick HDPE anti-seepage film. Increasing the wet discharge storage capacity and height of the tailings pond allows for more landfill of tailings slag.

　　Faced with various problems encountered in the treatment of mining tailings, many mining enterprises adopt the dry discharge method to treat tailings. Compared with wet tailings, dry tailings can save about 30% of construction costs. At the same time, the amount of tailings stored on the same area of land needs to increase by about 20% to 30%, which correspondingly reduces the land acquisition area.

　　Most importantly, dry piled tailings are easier to recover and utilize. Tailings dry discharge is a new technology for tailings disposal that has gradually emerged in China in recent years. It refers to the tailings slurry output through the beneficiation process being multi-stage concentrated, and then processed by efficient dehydration equipment such as a dewatering vibrating screen to form slag with low water content, easy sedimentation and solidification, and stored on site. The slag can be transported to a fixed location for dry storage.