渣场污染物中重金属迁移模式的研究

Study on the Migration Mode of Heavy Metals in the Pollutants of Slag Dump

在研究黔西南金矿用堆浸法提金工艺流程和污染途径基础上，进行相应地采样分析，发现与金共生的重金属元素Ｐｂ、Ｚｎ、Ｈｇ、Ａｓ、Ｔｉ 在提金过程中被活化出来，迁移至废渣和废水中；研究了渣场下伏粘土中重金属再次迁移污染的预测模式，并以×××金矿为例进行了预测。

Analyzed the extraction of gold by dump leaching process and pollutants in the Qianxinan Prefecture gold ore, it is found that the heavy metals co-occurring with gold, such as Pb,Zn,Hg,As,Ti ect., are dissociated into waste slag and water in the extraction of gold. The second migrating mode to clay and rock under the slag dump is studied in this article.