拉拉铜矿水环境质量评价及污染因子分析

基于矿山开采可持续发展及环境保护的需要,在对四川省拉拉铜矿矿区水环境进行实地调查的基础上,利用水质监测资料,依据国家《地表水环境质量标准》(GB3838-2002),采用模糊数学方法对其水环境质量进行了综合评价。认为除尾矿水、生活污水极严重污染(类)外,其它水属清洁(类)。同时筛选出主要污染因子为来自尾矿水中的Cu、Pb、Zn、Cd和来自生活污水中的氨氮及总磷,进一步探讨了污染物的来源、毒性及迁移规律。提出对泄漏的尾矿水可通过吸附、沉淀,除去金属毒物,对生活污水可通过离子交换法和吸附法除氮除磷,同时还应对矿山水环境加强监管的措施。

The Evaluation of Water Environment Quality and the Pollution Factor Analysis for the Lala Copper Mine,Sichuan Province

Investigated the the Lala copper mine's water environment.According to "Environmental Quality Standards for Surface Water"(GB3838-2002),synthetically evaluated its water environment quality with the fuzzy mathematics method.In conclusion,the debris water and sanitary sewage was polluted seriously(V kind),and the others were clean(I kind).Cu,Pb,Zn,Cd from debris water and total nitrogen and phosphorus from sanitary sewage were regarded as the the main pollution factors.The possible harm was discussed further.And the metal poison in debris water can be eliminated by adsorpting and precipitating,the total nitrogen and phosphorus in sanitary sewage can be eliminated by ionic exchange technique and adsorption,and the water environment should be supervised and managed rigorously.