| 多离子体系中黄河沉积物对重金属的竞争吸附研究 |
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| 引用本文： | 何江,李朝生,王新伟,孙卫国,米娜. 多离子体系中黄河沉积物对重金属的竞争吸附研究[J]. 沉积学报, 2003, 21(3): 500-505 |
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| 作者姓名： | 何江 李朝生 王新伟 孙卫国 米娜 |
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| 作者单位： | 内蒙古大学生态与环境科学系 呼和浩特 010021 |
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| 基金项目： | 内蒙古自然科学基金 (990 30 3 - 1 )，内蒙古教育厅重点项目基金 (ZD990 1 )，内蒙古“32 1人才工程”基金 (内人 (99) 51 )，内蒙古“1 1 1人才工程”基金，教育部高等院校骨干教师项目基金资助 |
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| 摘 要： | 以黄河包头段上游清洁河段的沉积物为吸附剂,以Pb2 + 、Cu2 + 、Zn2 + 、Cd2 + 4种离子的混合溶液体系为吸附质,开展了重金属离子在黄河沉积物中的竞争吸附及其影响因素等实验研究。结果表明,混合溶液体系中不同离子间的吸附竞争有显著的拮抗或协同效应关系,4种重金属离子在黄河沉积物中竞争吸附的能力依序为Pb2 + ≥Cu2+>Zn2 + ≥Cd2 + 。
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| 关 键 词： | 重金属 吸附 竞争 黄河 |
| 文章编号： | 1000-0550(2003)03-0500-06 |
| 收稿时间： | 2002-05-13 |
| 修稿时间： | 2002-05-13 |
Competition Adsorption on Heavy Metals of the Yellow River Sediments in the Polyion Coexisting System |
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| HE Jiang LI Chao-sheng WANG Xin-wei SUN Wei-guo MI Na. Competition Adsorption on Heavy Metals of the Yellow River Sediments in the Polyion Coexisting System[J]. Acta Sedimentologica Sinica, 2003, 21(3): 500-505 |
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| Authors: | HE Jiang LI Chao-sheng WANG Xin-wei SUN Wei-guo MI Na |
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| Affiliation: | Department of Ecology and Environment Science, Inner Mongolia Uni versity, Huhhot 010021 |
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| Abstract: | Sediments are taken from the clean reach in the Baotou section of the Yellow Riv er as the adsorbent, the mixed solution system made up of Pb 2+, Cu 2+, Zn 2+ and Cd 2+ as the adsorbate, experimental research has been car ried out on the competition adsorption of the Yellow River sediments on heavy me tals. The experiment has clarified the competitive adsorption order of Pb 2+ ≥ Cu 2+ Zn 2+ ≥ Cd 2+, the cooperative adsorption relation of Cu-Pb, Zn-Cd and the resistant adsorption relation of Cu-Zn, Cu-Cd, Pb- Zn and Pb-Cd. The study is of great significance in evaluating the potential ri sk of heavy metals in the river sediments. |
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| Keywords: | heavy metals competition adsorption the Yellow Ri ver |
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