| 重金属离子在泥煤中的饱和吸附容量与离子结构之间的关系 |
| |
| 引用本文： | 罗世地,刘峙嵘,周利民,韦鹏.重金属离子在泥煤中的饱和吸附容量与离子结构之间的关系[J].洁净煤技术,2008,14(3):63-65. |
| |
| 作者姓名： | 罗世地 刘峙嵘 周利民 韦鹏 |
| |
| 作者单位： | 1. 广东海洋大学理学院,广东,湛江,524088
2. 东华理工大学应用化学系,江西,抚州,344000 |
| |
| 基金项目： | 教育部留学回国人员科研启动基金 |
| |
| 摘 要： | 以泥煤泥炭为吸附剂进行了N i2 ,Cu2 ,Cd2 ,Ce4 ,Eu3 ,Dy3 ,Lu3 的吸附实验,选用极化指数、共价指数与吸附指数来表征重金属离子结构差异。聚类分析可将7种重金属离子分为5类,较好的Langmuir等温吸附方程拟合后计算得到饱和吸附容量由大到小排列顺序为:Cu2 >N i2 >Cd2 >Lu3 >Ce4 >Dy3 >Eu3 ,吸附指数与饱和吸附容量具有很好地线性关系,建立了泥煤对重金属的饱和吸附容量与重金属吸附指数之间的模型关系。
|
| 关 键 词： | 泥煤 重金属离子 吸附指数 |
| 文章编号： | 1006-6772(2008)03-0063-03 |
| 修稿时间： | 2008年2月21日 |
Relationship between saturated adsorption capacity of heavy metal ions on peat and their inonic structure |
| |
| LUO Shi-di,LIU Zhi-rong,ZHOU Li-min,WEI Peng.Relationship between saturated adsorption capacity of heavy metal ions on peat and their inonic structure[J].Clean Coal Technology,2008,14(3):63-65. |
| |
| Authors: | LUO Shi-di LIU Zhi-rong ZHOU Li-min WEI Peng |
| |
| Abstract: | The adsorption experiments of Ni2 ,Cu2 ,Cd2 ,Ce4 ,Eu3 ,Dy3 ,Lu3 on peat were investigated.The polarizing index,covalent index and adsorption index were used to indicate the different structure of heavy metallic ions.The cluster analysis showed that the seven kinds of heavy metal ions can be divided into five groups.The saturated adsorption capacity of heavy metal ions deduced from better Langmuir isotherm equation decreased in the order: Cu2 ,Ni2 ,Cd2 ,Lu3 ,Ce4 ,Dy3 ,Eu3 .The adsorption index was correlated to the saturated adsorption capacity of heavy metal on peat excellently and model between the saturated adsorption capacity of heavy metals on peat and adsorption index was established too. |
| |
| Keywords: | peat heavy metal ion adsorption index |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
