生物氧化提金废物安全治理

随着人们对黄金需求量的增加,黄金的生产规模在不断地扩大,我国易处理的金矿资源日渐减少,人们逐渐把眼光转向难处理的金矿,同时给人类带来的环境污染日趋严重,开发无污染或少污染的选冶新技术及如何安全环保的处理提金产生的废物,越来越受到广大从事黄金提取科技工作者的关注。生物氧化提金工艺的出现解决了此问题。生物氧化法具有投资少,金的回收率高,工艺操作简单,不污染环境等优点,此方法已成为开发难处理低品位金矿石的主要方法。我国自2000年开始投入使用,近几年,它的发展在中国相当迅速。本文介绍了我国新疆金铬矿业有限公司的生物氧化提金工艺及环废物处理情况,概述了其他提金废物处理的进展,旨在促进我国生物氧化提金清洁提取技术的发展。

Bio-oxidation extracting gold and waste safety disposal

With the increase of demand for gold,gold production continued to expand in size.In order to handle China＇s gold resources dwindling,people gradually turned their thinkings to gold mines which are diffcult to dispose,but it brings to human beings increasingly serious environmental pollution.The development of new non-polluting or less polluting technologies and choosing environmentally safe waste processing of gold attach more and more concern by the majority of workers in gold extraction technology.The emergence of gold extraction process by biological oxidation could solve this problem.Biological oxidation has advantages like low investment,high recovery rate of gold,a simple process,no pollution,etc.,this method has been developed ad has advantages like for refractory low-grade gold ore.Since 2000,the method had been put into use in recent years,its development in China was very quickly.This article described chromium gold extraction process and environmental waste treatment situation in Xinjiang Gold Mining Limited biological oxidation,the other progress of gold waste treatment was summarized,to promote the gold extraction of bio-oxidation cleaning technology.