浑河上游矿山重金属污染源解析及迁移机制研究

项目名称： 浑河上游矿山重金属污染源解析及迁移机制研究

项目编号： No.41201494

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 地理学

项目作者： 郭瑞超

作者单位： 中国科学院东北地理与农业生态研究所

项目金额： 25万元

中文摘要： 浑河流域大伙房水库是抚顺和沈阳两市生活饮用水的重要水源地，目前担负着辽宁省中部9个城市的供水任务。浑河上游是大伙房水库的关键水源涵养区，该区矿山开发引起的重金属污染，已威胁到下游水库的水质安全。查清矿区重金属污染物的来源及其贡献率，明确重金属在矿区及周围土壤和水体中的迁移机制，一直是环境界所关注而又未得到很好解决的问题。本项目以浑河上游流域内红透山矿区和二道沟矿区作为研究区，系统研究重金属(Cu、Cd、Pb、Zn、Ni、Cr、As、Hg)在矿区及周围土壤和水体中的分布特征和赋存形态；运用形态分析、剖面分析和多元统计方法，初步辨识矿区及周围土壤和水体中重金属污染物来源的类型，利用CMB-UNMIX复合模型，定量矿产开采、洗选和运输过程对矿区及周围土壤和水体重金属污染物的贡献。同时，利用剖面分析和形态分析阐明重金属在土壤和水体中的迁移机制，为水源地矿区重金属污染的的有效控制和治理提供科学依据。

中文关键词： 浑河上游；土壤养分；重金属；污染评价；非点源污染

英文摘要： Dahuofang Reservoir, which supplies water to nine cities in centre part of Liaoning province, is one of the most important drinking water sources in China. The upper reaches watershed of Hun River is the key headwaters of Dahuofang Reservoir. However, mining increases quickly in this area, which leads to heavy mental pollution to water and soils. And the heavy metals in both soils and water poses seriously threat to the water quality of Dahuofang Reservoir.The source apportionment and transter mechanism of heavy metals in water and soils draw ever more attention.The distribution and chemical speciation of heavy metals (including Cu, Cd, Pb, Zn, Ni, Cr, As, and Hg) in water and soils in/around Houtoushan Mining District and Erdaogou Mining District will be studied in the proposal, aiming to get a clear understanding of the source and transfer characteristics of heavy metals in water and soils of mining district. BCR three stage sequential extraction procedure was applied to examine the speciation of eight heavy metals in the soils. On the basis of basic source information get by speciation analysis, profile analysis, and multivariate statistical analysis, a composite model named CMB-UNMIX will be used to quantify the pollution contribution of every single step of mining and transportation process to the soils and

英文关键词： the upper reaches watershed of Hun river；soil nutrients；heavy metals；pollution assessment；non-point source pollution