| 北运河沉积物/水界面上重金属迁移转化规律 |
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| 引用本文： | 杨振东,聂玉伦,胡春.北运河沉积物/水界面上重金属迁移转化规律[J].环境工程学报,2012,6(10):3455-3459. |
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| 作者姓名： | 杨振东 聂玉伦 胡春 |
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| 作者单位： | 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
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| 基金项目： | 国家"十一五"水专项(2008ZX07209-001) |
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| 摘 要： | 分析测定了6种元素(Cr、Co、Mn、Cu、Pb、Zn)在北运河水系10个采样点水体和表层沉积物中的含量和形态分布,利用SPSS 19.0统计软件对重金属在不同形态中的含量进行相关性分析。结果显示,北运河下游重金属污染程度高于上游;Cr、Cu、Pb、Zn在底泥可提取态中所占比例相当高,多数采样点都超过10.0%。所研究的重金属多数在底泥Fe-Mn结合态与悬浮物、可交换态、硫化物和有机质结合态均存在相关性;Mn是北运河地化循环中最为活跃的元素。
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| 关 键 词： | 北运河 相关分析 重金属 沉积物/水界面 迁移 转化 |
| 收稿时间： | 8/3/2011 12:00:00 AM |
| 修稿时间： | 9/5/2011 12:00:00 AM |
Migration and transformation of heavy metals at solid/water interface in Beiyunhe River |
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| Yang Zhendong,Nie Yulun and Hu Chun.Migration and transformation of heavy metals at solid/water interface in Beiyunhe River[J].Techniques and Equipment for Environmental Pollution Control,2012,6(10):3455-3459. |
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| Authors: | Yang Zhendong Nie Yulun and Hu Chun |
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| Institution: | Yang Zhendong Nie Yulun Hu Chun(State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,Beijing 100085,China) |
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| Abstract: | Six elements (Cr,Co,Mn,Cu,Pb and Zn) in water and top sediment at 10 sites from the Beiyunhe River were analyzed to obtain the metal contents and species patterns in this region.The SPSS 19.0 software was used to analyze the correlation between concentrations in different species of heavy metals.The results showed that the contamination extent of heavy metals in the upstream was heavier than that in the downstream.Extractable fractions of Cr,Cu,Pb and Zn were extremely high and exceeded 10.0% at most sites.For most heavy metals studied,close correlations were found between Fe-Mn oxides and suspended solids,exchangeable fraction,sulfides and organic matter fraction.Mn was the most active element in local geochemical recycle of Beiyunhe River. |
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| Keywords: | Beiyunhe River correlation analysis heavy metals sediment/water interface migration transformation |
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