gitreal ... Methods to Control Tailings Pollution
The three most feasible approaches to tailings management and utilization are:
One is to cover the soil to create fields. In areas with sufficient soil, the method of pressing 10-20 cm of soil can be used for planting, covering the soil to create fields, and expanding the area of ??cultivated land. This method is suitable for valley-shaped tailings ponds. This approach has been affirmed over the years. However, there are also cases of secondary dust hazards due to the thin soil layer being pressed.
The second is to use organic waste to solidify and block the dust of gold mine tailings with degradability, and select appropriate seeds and substrates to make plants germinate and grow quickly to achieve the purpose of vegetation utilization. This method of tailings management has been tested through several years of practice, especially in the selection of degradable solidified waste, substrate, seed selection, and seed germination time. Some experiments have been successful. It overcomes the disadvantages of occupying a lot of soil layers and being inconvenient to manage due to the shape of tailings. At the same time, it also has great potential in desert management.
The third is to use tailings to develop building materials. Certain silica sands, sandstones, or vein quartz from gold mine tailings can be utilized. Bricks are the most common building materials. It is also a good way to use tailings to make bricks. A certain amount of lime is added to make bricks, which are then sent to the carbonization chamber, and carbon dioxide gas is introduced to carbonize them into bricks, which not only increases the pressure of bricks, Reduces land use and destroys land, and the economic benefits are also considerable. The tailings can also manufacture flat glass and various thermal insulation, thermal insulation, and sound insulation materials. In addition, techniques for extracting useful metals from tailings have also been utilized. 😇
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