Hydrometallurgy is the most widely used metallurgical process in the mining and metallurgical industry. The heap leaching of ore, that is, the transfer of useful components in the ore raw material into the solution by stacking and leaching, is one of the most important steps of the process. The bottom of the heap leaching site shall be treated with anti-seepage treatment to prevent the leaching solution from escaping or infiltrating contaminated soil and groundwater.
Tailings refer to ore mined from metal or non-metal mines, and the “waste residue” discharged by the concentrator after the selection of valuable concentrates. Due to their large quantity, these tailings contain useful or harmful components that cannot be disposed of at the moment and are discharged at will, which will cause loss of resources and pollute the environment. Therefore, as long as tailings are produced in a mine's concentrator, a tailings pond must be built. The red mud reservoir formed by the smelting waste residue and the waste residue bank formed by the power generation waste residue shall also be managed according to the tailings pond. According to the nature of tailings, the environmental protection and anti-seepage requirements of tailings ponds are different. For tailings belonging to hazardous wastes, safe disposal shall be carried out in accordance with the hazardous waste management and disposal regulations; for general industrial solid wastes without hazardous characteristics, in accordance with the "General Industrial Solid Waste Storage and Disposal Site Pollution Control Standards" (GB 18599-2001) )carried out.
Zhonghe Environmental Protection has provided environmental pollution isolation construction and services for large mining companies such as Mongolia Oyu Tolgoi OT Project, Zijin Mining, Western Mining, China Gold, etc., in mining heap leaching field, tailings pond, accident pool, craft pool The completion of a number of environmental pollution isolation system construction projects in other fields is the leading enterprise in the industry in China.
Most of the mining projects are located in the alpine region or the environment is harsh, the materials are scarce, the long distance transportation is difficult, the construction conditions are complex, and the construction quality requirements are extremely high. Our company has experienced many mining environmental protection projects in Tibet, Xinjiang, Inner Mongolia, Annex, Northeast and other regions. The project has rich experience, coordinated management, and is especially good at special terrain anti-seepage construction. It can provide a series of professional services such as design consultation, supply construction, management operation and so on.