目前世界金属矿资源中,富矿储量正在逐渐减少,低品位贫矿的开发与利用比重在逐渐增大,因此,使得选矿处理的矿石量增加很快,相应带来了尾矿量的大大增加,对环境的污染日趋严重,成了一项很重要的污染源。 At present, the world’s reserves of mineral resources are gradually decreasing, and the proportion of low-grade lean mines developing and utilizing is gradually increasing. As a result, the amount of ore beneficiated is increased rapidly, resulting in a significant increase in the amount of tailings. The pollution of the environment has become increasingly serious, has become a very important source of pollution.