5 million tons of mining tailings entered the river every year until 1995, while the fumes from the smelter created acid rain in the area.
1995年前，每年有150万吨矿山尾矿进入河流，而冶炼厂的烟雾造成该地区的酸雨。
This material forms a thick, weighty and highly abrasive sludge that must be transported from the flotation cells, where the copper is extracted, to a mine tailings disposal area.
这种物质会形成浓厚的、沉重的、具有很强研磨性的污泥，这种污泥需要从萃取铜的浮选槽中传输出来，然后输送到矿尾的处置区域。
To reduce the occupied area of land, coal wastes are used as the materials of the tailings dam.
为减少土地占用面积，采用煤矸石作为尾矿库初期坝的筑坝材料。
For the safety of mining underground, the tailings piled up in collapse area must be solidified.
为了保证地下采矿的安全，在塌陷区堆放的尾砂必须经过固化处理。
Combined the data of 20 mini tailings dams that take out randomly in one area, the hazard of mini tailings dams is analyzed in the way of the analysis of the matrix of risk assessment code.
利用鱼刺图分析了小型尾矿库存在的风险，并结合某地区随机抽取的20个小型尾矿坝的相关数据，通过风险评价指数矩阵法分析了此地区小型尾矿坝的风险，确定了该地区小型尾矿库的风险等级。
The engineering geological drilling exploration for the Jinduicheng tailings dam area is carried out to serve the heightening design of enlarging its volume.
金堆城尾矿坝为了进行加高设计而对尾矿库区进行了地质钻孔勘探。
Cementing tailings to fill gob area can both reduce environmental pollution and ground destruction.
将尾砂胶结后用于充填采空区，可以减少环境污染和地表破坏。
With the development of mining, the tailings wasteland is expanding quickly, not only occupying the large area land, but also being a serious contaminative source.
随着矿藏的开采，尾矿场迅速扩增，不仅侵占大量土地，而且矿业废弃物的堆积，也是严重的污染源。
The larger the accumulated water depth or area covering the tailings in the reservoir, the easier the heavy metal ions will be released;
尾矿库内覆盖尾矿的积水深度或面积越大，越容易使重金属离子溶出；
As a mining area, long time of mining related activities left large amounts of tailings, which have brought serious environmental problems of heavy metals.
长期的矿山采、选活动积累了大量的尾矿渣，对该区土壤环境造成了严重的重金属污染。
The tailings of metal ores are characterized by great quantity, large occupying area and serious pollution.
金属尾矿数量大，占地广，污染严重。
The tailings of metal ores are characterized by great quantity, large occupying area and serious pollution.
金属尾矿数量大，占地广，污染严重。
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