| 重金属离子在腐植酸上吸附的研究 |
| |
| 引用本文： | 李克斌,刘维屏.重金属离子在腐植酸上吸附的研究[J].环境污染与防治,1997,19(1):9-11. |
| |
| 作者姓名： | 李克斌 刘维屏 |
| |
| 作者单位： | 浙江大学化学系!杭州310027西北大学化学系，浙江大学化学系!杭州310027 |
| |
| 摘 要： | 对4种代表性重金属离子在腐植酸上吸附、pH对竞争吸附的影响及其吸附机理进行了研究。结果表明，Cu2＋、Pb2＋、Zn2＋的吸附等温线为F型，而Cd2＋等温线为L型；2．5＜pH＜3．5时，竞争吸咐次序为Cu2＋＞Pb2＋＞Cd2＋＞Zn2＋；pH＞5．0时，Cd2＋＞Cu2＋＞Zn2＋＞Pb2＋；Cu2＋在腐植酸上的吸附主要是以与腐植酸形成配合物的方式相互结合。
|
| 关 键 词： | 重金属离子 吸附 腐植酸 配合物 |
Adsorption of Heavy Metal Ions on Humic Acid |
| |
| Li Kebing, Liu Weiping, Shao Ying.Adsorption of Heavy Metal Ions on Humic Acid[J].Environmental Pollution & Control,1997,19(1):9-11. |
| |
| Authors: | Li Kebing Liu Weiping Shao Ying |
| |
| Abstract: | The adsorption characteristics of four typical heavy metal ions on humic acids was studied.The results showed that the isotherms were of F type Cu2+, Pb2+, Zn2+, L type for Cd2+. The competitive adsorption series are Cu2+ >Pb2+ >Cd2+ >Zn2+at 2. 5Cu2+ >Zn2+>Pb2+ at pH>5. 0 and the mechanism of Cu2+ adsorbed by humic acids was to form compound. |
| |
| Keywords: | Heavy metal Adsorption Humic acid Competitive adsorption |
| 本文献已被 CNKI 维普 等数据库收录！ |
