从矿山开采出来的矿石,经过选冶提取出有用物质以后,剩下的就是人们所说的尾矿了。人们除用少部分尾矿回填坑道采场和制砖铺路或他用外,绝大部分却长年累月堆放在矿区,形成一个个尾矿坝(库)。这些尾矿坝(库)不仅占据大片土地,而且对生态环境造成严重污染和破坏,甚至造成安全事 Ore extracted from the mine, after the election and extraction of useful substances, the rest is what people call the tailings. In addition to using a small part of the tailings backfill tunnel stope and brick paving or other use, the vast majority have been stacked in the mining area for many years to form a tailings dam (reservoir). These tailings dam (reservoir) not only occupy a large area of ​​land, but also cause serious pollution and damage to the ecological environment, and even cause security issues