关键词: 重金属, 污染, 综合防治

Abstract: Lala Copper Mine is located at Huili County，Liangshan Prefecture ,Sichuan Province. It is an important base of copper production，accompanying with FeAuUMoCoRE comprehensive utilization. After decades of mining，large quantities of solid wastes have been formed in this area. Furthermore，the insufficient utilization also made the heavy metal content pretty high in this land. Hence，the heavy metal content and pollution degree of Cu，Cd，Hg，Cr，Pb，As in the soil of mine and Cu，Cd，Zn，Pb，As in the water were investigated and evaluated scientifically. It proved that soils in Lala Mine is seriously polluted by cadmium，heavily polluted by mercury and chromium，and moderately polluted by copper，while the soils are not or moderately polluted by lead，and water in the Lala Mine is seriously polluted by copper，cadmium and lead. But the water is not or moderately polluted by arsenic. the solution through biology，physics and chemistry methods to prevent and treat pollution are put forwards.

Key words: Heavy metal, Pollution, Comprehensive prevent