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| 凹凸棒石黏土对Cd2+的吸附作用及影响因素 | |
| 引用本文： | 戴荣玲,章钢娅,胡钟胜,宗良纲.凹凸棒石黏土对Cd2+的吸附作用及影响因素[J].非金属矿,2006,29(5):47-49,67. |
| 作者姓名： | 戴荣玲 章钢娅 胡钟胜 宗良纲 |
| 作者单位： | 1. 南京农业大学资源与环境学院,南京,210095 2. 中国科学院南京土壤研究所,南京,210008 3. 中国科学院南京土壤研究所,南京,210008;中国科学院研究生院,北京,100039 |
| 基金项目： | 国家重点基础研究发展规划（973）项目（项目编号：2002CB410805）资助 |
| 摘 要： | 通过室内吸附实验，表明凹凸棒石黏土（凹土）对重金属离子Cd^2＋有很好的吸附作用，吸附作用受溶液pH值影响明显。增大镉离子初始浓度，有利于提高凹土对Cd^2＋吸附量，但是去除率降低。支持电解质对凹土吸附Cd^2＋也产生影响，Ca^2＋的影响比Na^＋和K^＋的大。 |
| 关 键 词： | 镉污染 凹凸棒石黏土 吸附作用 影响因素 |
| 收稿时间： | 2006-03-14 |
| 修稿时间： | 2006-03-14 |
Adsorption & Affecting Factors of Attapulgite to Cd2+ |
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| Dai Rongling,Zhang Gangya,Hu Zhongsheng,Zong Lianggang.Adsorption & Affecting Factors of Attapulgite to Cd2+[J].Non-metallic Mines,2006,29(5):47-49,67. | |
| Authors: | Dai Rongling Zhang Gangya Hu Zhongsheng Zong Lianggang |
| Affiliation: | 1 College of Resource and Environment Science, Nanjing Agricultural University, Nanjing 210095; 2 Nanjing Institute of SoU Science, CAS, Nanjing 210008; 3 Graduate school, CAS,Beijing 100039 |
| Abstract: | The adsorption of attapulgite to cadmium ions was studied by indoor adsorption test. The results showed that attapulgite have a high affinity for cadmium ions, and sorption is affected by pH of solution evidently. It is advantageous to adsorption of cadmium ions that initial concentration is increased. Sorption is also affected by background electrolyte,and compared with natrium ions and kalium ions,sorption is affected by calcium ions more remarkably. |
| Keywords: | cadmium contaminate attapulgite adsorption affecting factor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |