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尾矿渣是选矿厂在特定经济技术条件下,将矿石中精矿选别出来之后所剩下的固体废料(磨细矿石选走有用组分之后所排出的废弃物)。沙河市矿产资源丰富,全市有大小矿点120多家,选矿厂60多家,2013年开采铁矿石原矿479.45万吨。铁矿的大量开采,会排出大量的尾矿渣,不仅占用了大量土地,而且造成植被破坏,淤积河道,污染环境。为防止尾矿渣污染,解决尾矿渣占地、尾矿渣及荒滩综合利用等问题,开展了尾矿
Tailings slag is the solid waste left by the beneficiation plant after sorting out the ore concentrates under certain economic and technical conditions (the rejects after grinding the beneficiation components of the ground ore). Shahe City, rich in mineral resources, the city has more than 120 ore size, beneficiation plant more than 60, in 2013 the mining of 4.49455 million tons of iron ore ore. Large-scale mining of iron ore will emit a lot of tailings, not only occupy a large amount of land, but also cause vegetation damage, siltation of rivers, pollute the environment. In order to prevent tailings slag pollution, to solve the problem of tailings slag occupation, tailings slag and wasteland comprehensive utilization, the tailings