SIMULTANEOUS ADSORPTION OF CHLORDIMEFORM AND ZINC ON MONTMORILLONITE

被引：15

作者：

MORILLO, E

MAQUEDA, C

机构：

[1] Instituto de Recursos Naturales y Agrobiología, 41080 Seville

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 1992年 / 123卷

关键词：

ADSORPTION; PESTICIDE; HEAVY METAL; MONTMORILLONITE;

D O I：

10.1016/0048-9697(92)90140-N

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The competitive adsorption of the cationic pesticide chlordimeform and the heavy metal zinc on montmorillonite was studied. For different concentrations of Zn used, chlordimeform decreases (in relation to Zn-free treatments) when the pesticide is adsorbed simultaneously with the metal, but increases when Zn is adsorbed previously to chlordimeform. When comparing the K(D) values chlordimeform is shown to have a higher affinity for montmorillonite when there is a previous adsorption of Zn than with the simultaneous adsorption of Zn and the pesticide. The adsorption of Zn decreases when chlordimeform concentration increases, in both cases, when the metal is adsorbed simultaneously with the pesticide and when chlordimeform has been previously adsorbed to Zn.

引用

页码：133 / 143

页数：11

共 12 条

[1]

BAILEY GM, 1967, J AGR FOOD CHEM, V12, P324

[2] MULTIPLE-SITE ADSORPTION OF CD, CU, ZN, AND PB ON AMORPHOUS IRON OXYHYDROXIDE [J].