Sorption of technetium and rhenium on natural sorbents under aerobic conditions

H. Vinsova; R. Konirova; M. Koudelkova; V. Jedinakova-Krizova

doi:10.1023/b:jrnc.0000034878.72774.53

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 261: Issue 2

Sorption of technetium and rhenium on natural sorbents under aerobic conditions

Authors:

H. Vinsova

H. Vinsova Institute of Chemical Technology Department of Analytical Chemistry Technická 5 166 28 Prague 6 Czech Republic

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R. Konirova

R. Konirova Institute of Chemical Technology Department of Analytical Chemistry Technická 5 166 28 Prague 6 Czech Republic

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M. Koudelkova

M. Koudelkova Institute of Chemical Technology Department of Analytical Chemistry Technická 5 166 28 Prague 6 Czech Republic

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V. Jedinakova-Krizova

V. Jedinakova-Krizova Institute of Chemical Technology Department of Analytical Chemistry Technická 5 166 28 Prague 6 Czech Republic

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Pages:: 407–413

Online Publication Date:: 03 Nov 2004

Publication Date:: 17 Aug 2004

Article Category:: Research Article

DOI:: https://doi.org/10.1023/b:jrnc.0000034878.72774.53

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Abstract

The uptake of technetium on bentonite materials has been studied from the point of view of the characterization of long-term radioactive elements behavior in nuclear waste repository. It is generally known that bentonite materials show an excellent cation-exchange capacity and on the other hand a poor uptake of anions. The aim of our research has been to find out the conditions suitable for technetium sorption on selected bentonite under oxidizing conditions. The influence of the addition of different materials (e.g., activated carbon, graphite, Fe²⁺, Fe) with bentonite, the effect of solid:aqueous phase ratio and a pH value on the percentage of technetium uptake and on the K_d values were tested.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)