大冶铜绿山矿给排水方案的优化设计

铜绿山矿长期沿用以尾矿库为汇的合流制排水系统,不利于尾矿库污水资源化,加剧了尾矿库安全和环境风险.为预防和缓解大冶湖流域日益突出的水环境污染问题,对铜绿山矿现有给排水系统进行了深入调查,并在水平衡测试的基础上,提出了"清污分流"、"分质处理"、"综合平衡"的优化设计方案,该方案只需另增一条排污管渠,具有技术经济可行性.环境效益对比数据表明:该优化设计方案水资源重复利用率提高了11.9%,尾矿库污水回用率提高到98.8%,实现了水资源的高效利用,选矿废水串联使用完全消纳,从源头上削减了废水及其有毒有害污染物的排放量,有利于铜绿山矿建设的可持续发展.

Optimization design of water supply and drainage project of Tonglushan mine of Daye

The drainage system of the confluence of the tailings was adopted in Tonglushan mine for a long time.Which went against tailings waste reuse,together made the water resources recycling rate reduced,the volume of sewage increased,the effect of tailings natural purification weakened,the safety and environmental risk of tailings aggravated and went against the basin water environment protection.To prevent and mitigate the increasingly prominent water environment pollution of Daye lake basin,an in-depth survey of the existing water supply and drainage system was made and a technical and economic feasible optimization design was come up.The project has practicability in both technique and economy for only a pipe duct need be added to discharge pollution.By contrasting the data of environmental benefits,the results show that the reuse ratio of water resources is raised by 11.9% and the tailings sewage is up to 98.8% by the optimization scheme,which made the high efficiency utilization of water resources and the total demission of mineral processing sewage;the emissions of wastewater and toxic pollutants are reduced at the source.It is of great significance to the sustainable development of Tonglushan mine.