Adsorption of radioactive iodide by natural zeolites

被引：40

作者：

Faghihian, H ^{[1
]}

Maragheh, MG

Malekpour, A

机构：

[1] Isfahan Univ, Dept Chem, Esfahan, Iran

[2] Atom Energy Org Iran, Tehran, Iran

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2002年 / 254卷 / 03期

关键词：

D O I：

10.1023/A:1021698207045

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two natural zeolites from Iranian deposits (clinoptilolite and natrolite) were characterized and their ability for adsorption of iodide from nuclear wastewaters was evaluated. The adsorption behavior was studied on natural and modified zeolites by gamma-spectrometry using I-131 as radiotracer. Adsorption isotherms and distribution coefficient (K-d) were measured. The results showed that clinoptilolite is a more promising zeolite for removal of iodide compared to natrolite. Furthermore, the adsorption was higher in silver, lead and thallium forms, whereas the lowest desorption was observed in lead modified zeolite.

引用

页码：545 / 550

页数：6

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[4]

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