铜火法冶炼废水处理实践

Practice of Treating Wastewater from Copper Smelting by Fire Process

阐述了铜冶炼火法工艺发展状况,剖析了铜冶炼过程产生废水的主要环节,并对废水处理工艺及原理进行了梳理,分析了某铜冶炼企业废水产生节点、产生特点和组成成分;针对现有的废水处理技术和资源化利用提出了合理的建议。特别阐述了阳谷祥光铜业自主研发的旋浮铜冶炼技术、粗铜自氧化还原精炼技术、平行流电解技术,“硫化+石膏+中和”工艺和废水深度处理联合工艺特点,对采用火法冶炼工艺的铜冶炼企业的废水处理及资源化利用具有借鉴意义。

The development of copper smelting pyrometallurgical process was described in detail.The main links of wastewater produced in copper smelting process were analyzed.The process and principle of wastewater treatment were reviewed.The generation nodes,characteristics and components of wastewater in copper smelting enterprise were analyzed,and reasonable suggestions on the existing wastewater treatment process and wastewater resource utilization were put forward.In particular,the characteristics copper suspension smelting technology,crude copper self oxidation-reduction refining technology,parallel flow electrolysis technology,as well as the combined process of vulcanization+gypsum+neutralization,and advanced wastewater treatment independently developed by Yanggu Xiangguang Copper Co.,Ltd.,were briefly described,which will be of reference significance reference for wastewater treatment and resource utilization in copper smelting enterprises using pyrometallurgical process.