| 秦岭神安沟矿区沟道地表水和沉积物中重金属分布形态研究 |
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| 引用本文： | 薛喜成,王攀,何勇,张蕊,毕吉嵩.秦岭神安沟矿区沟道地表水和沉积物中重金属分布形态研究[J].农业环境科学学报,2011,30(2). |
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| 作者姓名： | 薛喜成 王攀 何勇 张蕊 毕吉嵩 |
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| 作者单位： | 1. 西安科技大学地质与环境学院,西安,710054
2. 陕西煤田地质监理事务所,西安,710054 |
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| 基金项目： | 陕西省自然科学基金项目 |
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| 摘 要： | 为了探讨重金属在矿山水体环境中的富集规律,以秦岭神安沟矿区沟道地表水、沉积物中的重金属为研究对象,测试了各类重金属含量.并利用Tessier五步连续萃取法分析了沉积物中重金属的5种形态.旨在为该矿区环境恢复治理提供参考.结果显示,未受采矿活动影响的对照区地表水与沉积物均未检出Zn、Pb、Cd,对照区未受污染.受开采活动影响的上、中、下游地表水、沉积物受到Pb、Cd不同程度的污染,下游地表水Pb、Cd分别超标5.3倍、43.3倍,不符合农田灌溉用水水质要求;上、中、下游沉积物中重金属污染负荷指数均达Ⅲ级,沟道沉积物已受到严重污染.沉积物中重金属形态分布特征为:Zn、Cd以有机结合态所占比例最高,Pb以铁锰氧化物结合态所占比例最高,Zn、Pb的生物有效性高.由此得出下游地表水不适于灌溉.由于矿方目前已终止尾矿库淋滤水向沟道排放,沉积物中各类萤金属含量已趋于稳定,矿区神安沟地表水、沉积物重金属污染严重,亟需治理恢复.
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| 关 键 词： | 神安沟 铅锌矿区 重金属 Tessier连续萃取法 形态分析 |
Distribution and Configuration of Heavy Metals in Surface Water Sediments:A Case Study of the Mining Area in Qinling,Shenangou,China |
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| XUE xi-cheng,WANG Pan,HE Yong,ZHANG Rui,BI Ji-song.Distribution and Configuration of Heavy Metals in Surface Water Sediments:A Case Study of the Mining Area in Qinling,Shenangou,China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(2). |
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| Authors: | XUE xi-cheng WANG Pan HE Yong ZHANG Rui BI Ji-song |
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| Institution: | XUE Xi-cheng1,WANG Pan1,HE Yong2,ZHANG Rui1,BI Ji-song1(1.College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China,2.Shaanxi Coal Geological Supervision Office,China) |
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| Abstract: | To explore the enrichment of heavy metal in surface water sediments of mining area in Qinling,Shenangou,this article tested the content of each heavy metal,taking the surface water and sediments as the research objects.The configurations of heavy metals in surface water sediments were also analysed by using Tessier five-step sequential extraction methods.The result showed that there were no Zn,Pb,and Cd in surface water unaffected by the mining area and the contrast area was not polluted.However,it also sho... |
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| Keywords: | Shenangou lead-zinc mining area heavy metals tessier sequential extraction methods configuration analysis |
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