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投稿时间：2011-07-29 修订日期：2011-10-08
投稿时间：2011-07-29 修订日期：2011-10-08
中文摘要: 采用Tessier连续提取法对延安市污水处理厂污泥中的Zn、Cu、Cr、Cd、Pb和Mn六种重金属元素进行形态提取，并用电感耦合等离子体发射光谱(ICP-AES)法对其中各元素的总量及其形态进行测定。结果表明： Pb、Cd多以可交换态、碳酸盐结合态存在，分别占总量的76.84%和78.59%, 对生物具有潜在有效性。Zn、Cu、Cr多以稳定的硫化物及有机结合态和残渣态存在，不易迁移到环境中去。
中文关键词: 污泥 重金属 形态分析 Tessier连续提取法
Abstract:The Tessier sequential extraction procedure was used to extract six heavy metal elements, including Zn, Cu, Pb, Cd, Mn and Cr, from the sludge taken from a wastewater treatment plant in Yan’an. The total amount and the forms of the six elements were analyzed by ICP-AES. The results showed that Pb and Cd mostly existed as exchangeable ions and carbonate compounds which account for 76.84% and 78.59% of the total contents of Pb and Cd elements, respectively. Pb and Cd elements had potential validity to biological species. Zn, Cu and Cr mainly existed as stable sulfides, organometal complex and solid residues, thus not easy to transfer into the environment.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| ZHU Yanqiang | Yan'an City Wastewater Treatment Plant, Yan’an, Shanxi 716000,China |
| ZHANG Yuanyuan | Yan'an City Wastewater Treatment Plant, Yan’an, Shanxi 716000,China |
引用文本：
朱延强,张媛媛.延安市污水处理厂污泥中6种重金属元素的形态分析[J].中国无机分析化学,2011,1(4):40-43.
ZHU Yanqiang,ZHANG Yuanyuan.Analysis of the Forms of Six Heavy Metal Elements in the Sludge from a Wastewater Treatment Plant in Yan’an[J].Chinese Journal of Inorganic Analytical Chemistry,2011,1(4):40-43.
朱延强,张媛媛.延安市污水处理厂污泥中6种重金属元素的形态分析[J].中国无机分析化学,2011,1(4):40-43.
ZHU Yanqiang,ZHANG Yuanyuan.Analysis of the Forms of Six Heavy Metal Elements in the Sludge from a Wastewater Treatment Plant in Yan’an[J].Chinese Journal of Inorganic Analytical Chemistry,2011,1(4):40-43.
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