| 改性沸石对重金属离子竞争吸附特性研究 |
| |
| 引用本文： | 许秀云,蔡玉曼.改性沸石对重金属离子竞争吸附特性研究[J].地质学刊,2010,34(1):92-97. |
| |
| 作者姓名： | 许秀云 蔡玉曼 |
| |
| 作者单位： | 南京晓庄学院;江苏省地质调查研究院; |
| |
| 摘 要： | 以钠型改性沸石为吸附剂,以含有单一的镉、锌、铅溶液以及镉、锌、铅的混合溶液为吸附质,开展了改性沸石中重金属离子的竞争吸附及其影响因素等实验研究。结果表明,当溶液中有多种二价重金属离子存在时,各离子之间存在竞争吸附,竞争能力为Pb2+>Cd2+>Zn2+;Zn2+-Cd2+表现出显著的协同吸附效应,而Zn2+-Pb2+、Cd2+-Pb2+表现出拮抗吸附。
|
| 关 键 词： | 改性沸石 重金属离子 竞争吸附 江苏镇江 |
Study on competitive absorption properties for heavy metal ions by modified zeolite |
| |
| XU Xiu-yun,CAI Yu-man.Study on competitive absorption properties for heavy metal ions by modified zeolite[J].Jiangsu Geology,2010,34(1):92-97. |
| |
| Authors: | XU Xiu-yun CAI Yu-man |
| |
| Institution: | 1.Nanjing Xiaozhuang University/a>;Nanjing 211112/a>;China/a>;2.Geological Survey of Jiangsu Province/a>;Nanjing 210018/a>;China |
| |
| Abstract: | The authors made experimental studies on the competitive absorption and the impact of factors of the heavy metal ions in modified zeolite choosing Na-modified zeolite as the absorbent and single solutions with cadmium,zinc,lead,as well as a mixture with cadmium,zinc,lead solution for the absorbent.The results indicated that if a variety of divalent heavy metals were present,there was competitive absorption between the ions and the competitiveness for the Pb2+>Cd2+>Zn2+;Zn2+-Cd2+ showed a marked synergistic ... |
| |
| Keywords: | Modified zeolite Heavy metal ions Competitive absorption Zhenjiang Jiangsu |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质学刊》浏览原始摘要信息 |
| 点击此处可从《地质学刊》下载免费的PDF全文 |
|
