What are the advantages and disadvantages of belt mining?
strips are a form of surface mining, which is usually used to recover materials such as coal and tar sand that are relatively close to the ground surface. Surface vegetation, soil and rocks are removed in strips, often in conjunction with controlled explosions to make the removal more efficient. Once the material of the material is exposed, it is removed and transported to refine. This technique is somewhat controversial, with professionals such as improved efficiency, costs and safety and disadvantages, including the destruction of the natural ecosystem and potential for environmental pollutants. The level of recovery of materials is higher in belt mining, with approximately 80% to 90% obtaining material regeneration, unlike approximately 50% with tunnel mining. This process is also much faster because the tunnels may not be dug and supported, and minerals are not raised on long routes to the surface. Both search and transport are easier with surface mining techniques.
The cost of mining with this method is also lower. This helps to pay production costs and thus theoretically final material costs. Stripe mining is also safer than underground mining, which can be dangerous due to the collapse of tunnels and toxic air. Companies are now obliged to recover any land they use for belts, fill in the removed areas and cover them with plowing and planted vegetation.
critics of this method of mining are worried about its impact and repeat disadvantages such as the destruction of the natural ecosystem and the introduction of environmental pollutants. Although companies are obliged by law to recover the land as soon as fragile ecosystems are disturbed, REGA may take several years of balance, resulting in the loss of life of plants and animals. If this is not done correctly or if reclamation takes a considerable amount of time, the soil becomes vulnerable to erosion and floods, which results in anotherí destruction.
nearby water sources can also be contaminated with dumping of dug material and using extraction solvents. Strips can also release toxins and dust into the air, resulting in extensive and poorly controlled contamination. The measures are taken to prevent these occurrences, for example in sealed tail ponds. These ponds in which liquid contaminants are located until they are solid and can be safely removed should maintain the waste contained; However, it is known that there are leaks and contaminated nearby areas. Whatever the debate, the mining of the belts remains a commonly used and effective method of mining.