有色金属矿山坑道酸性废水的处理及综合利用研究  

Treatment and Comprehensive Utilization for the Acid Tunnel Wastewater in Non-Ferrous Metal Mines

作　　者：李争流[1] 曾光明[1] 李倩[1] 

机构地区：[1]湖南大学环境科学与工程系

出　　处：《湖南大学学报（自然科学版）》2003年第6期78-81,共4页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(No.70171055;50179011);国家杰出青年科学基金资助项目(No.50225926);高等学校博士学科点专项科研基金资助项目(No.20020532017)

摘　　要：某有色金属矿山坑道酸性废水经石灰中和沉淀后,经处理的废水能够达到工业废水排放标准,同时废水中的有价金属离子得到利用和回收.但实际操作中存在许多问题,生产很不稳定,工艺过程难以实现工业化生产.本研究采用2步中和沉淀法,使废水处理流程大大简化.2段逆流浸出工艺流程简单易行,实验指标稳定,有价金属离子得到有效的利用和回收,回收的产品等级提高,无二次污染问题,具有一定的经济效益和社会效益。The acid tunnel wastewater from a non-ferrous mine, after treated by lime, can reach the industrial effluent standard, and the negotiable metal ions in the wastewater are retrieved. But there are some problems in the practical process: the production is unstable and the technological process is difficult for industrialization. Our research adopted a two-step method, which can make the wastewater treatment process more simple. The two-stage-refluence leaching technical process is easy to operate, and the experimental targets are stable. Not only the negotiablemetal metal ions are retrieved, but the grade of the retrieved products is improved. The method also has no secondary pollution.

关 键 词：铜 锌 废水 综合利用 

分 类 号：X751[环境科学与工程—环境工程]