| 广西大厂多金属矿区河流中Sb和As的迁移及环境影响 |
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| 引用本文： | 李 玲,张国平,刘 虹,项 萌,魏晓飞.广西大厂多金属矿区河流中Sb和As的迁移及环境影响[J].环境科学研究,2009,22(6):682-687. |
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| 作者姓名： | 李 玲 张国平 刘 虹 项 萌 魏晓飞 |
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| 作者单位： | 1.中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州 贵阳 550002;中国科学院研究生院,北京 100049 |
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| 基金项目： | 国家自然科学基金，中国科学院创新团队国际合作伙伴计划 |
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| 摘 要： | 以广西大厂多金属矿山为例，对其矿山尾矿堆及地表河流进行采样，研究矿山开采中释放的毒害元素Sb和As对河流水环境的影响. 结果表明，矿渣堆中的w(Sb)和w(As)分别为175～7 119和309～24 233 mg/kg；选厂排水中ρ(Sb)和ρ(As)最高值分别为5 475和179 μg/L；受矿山影响的河流中的ρ(Sb)和ρ(As)平均值在枯水期为630和100 μg/L，在丰水期为497和65 μg/L. 该矿山的开采致使选厂排水和矿山尾渣均对矿区河流中重金属含量做出显著贡献，已对周边河流产生严重影响，造成了刁江上游河水的污染. Sb与As虽然化学性质相似，但二者在河水中的迁移特性仍有明显的差别，As在河水中的衰减强于Sb. 河水中Sb和As的影响范围都很大，模拟计算表明，Sb和As的影响范围分别离矿山区约120和60 km.
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| 关 键 词： | 锑 砷 矿山 河流 广西大厂 |
| 收稿时间： | 2008/10/15 0:00:00 |
| 修稿时间： | 2008/11/18 0:00:00 |
Antimony and Arsenic Migration and Environmental Impacts on River Draining in the Dachang Multi-Metalliferous Mine Area in Guangxi, China |
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| LI Ling,ZHANG Guo-ping,LIU Hong,XIANG Meng and WEI Xiao-fei.Antimony and Arsenic Migration and Environmental Impacts on River Draining in the Dachang Multi-Metalliferous Mine Area in Guangxi, China[J].Research of Environmental Sciences,2009,22(6):682-687. |
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| Authors: | LI Ling ZHANG Guo-ping LIU Hong XIANG Meng and WEI Xiao-fei |
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| Institution: | 1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;Graduate School, Chinese Academy of Sciences, Beijing 100049, China2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China |
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| Abstract: | The distribution and mobility of Sb and As in surface water of a mine region were investigated,so as to assess the potential risk of Sb and As released from mine exploitation.Mine tailings,mine operation drainage and downstream river waters in the Dachang multi-metalliferous mine area were sampled and analyzed for Sb and As by ICP-MS.Mine tailings showed Sb concentrations of 175 to(7,119)(mg/kg) and As concentrations of 309 to 24,233(mg/kg.) Mass concentrations of dissolved Sb and As were up to(5,475) and 1... |
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| Keywords: | Sb As mine river waters Guangxi Dachang |
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