金矿尾矿中氰化物的固化处理及毒性浸出研究

On the cyanide solidification treatment and toxicity leaching of gold mine tailings

全泥氰化法提金产生的含氰尾矿不能直接用于矿井进行充填.通过对含氰尾矿进行氧化破氰处理,然后按不同灰砂比配制成充填试块,养护不同时间后进行毒性浸出实验,结果表明:浸出液及充填试块中氰化物含量可以达到国家相应的污染物排放标准.研究结果为氰化尾矿用于矿井充填提供了新的处理方法.

Cyanide taihngs of all sliming cyanid cannot be oxidation and cyanide treatment of cyanide bearing tailings, used directly for the filling of the mine. Through it makes the preparation of filling test block at different ratio and toxicity leaching test after different time of curing. Results show that the determination of cyanide in leaching solution and filling test block can meet the corresponding national standards for the discharge of pollutants. This research results can provide theoretical basis for the cyanide tailings filling.