改进电动力技术去除铅锌矿尾砂中的重金属

Removal of Heavy Metals from Lead-Zinc Mine Tailings by Improved Electrokinetic Technique

采用改进的电动力技术去除铅锌矿尾砂中的 Pb,Zn,Cu。研究了铅锌矿尾砂中重金属在改进电动力技术处理情况下的去除情况。实验结果表明,经过7 d 的电动力实验,Pb、Zn 和 Cu 的总去除率分别为34%,33%,37%,其中酸溶态去除效果显著,分别达到66%,86%,81%。Pb 和 Cu 的铁锰氧化物结合态去除率为39%和42%,其他形态去除率较低,在10%左右。

The improved elecrokinetic technique was used to remove heavy metals from lead-zinc mine tailings. The results show that the total removal rates ofPb, Zn and Cu are 34%, 33% and 37% respectively after the electro-remediation for seven days. The removal rates of acid extraction fractions of Pb, Zn and Cu are 66%, 86% and 81% respectively. The removal rates of oxide fractions of Pb and Cu are 39% and 42% respectively. The removal rates of other fractions are only about 10%.