Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 159: Issue 1

The removal of thorium from aqueous solutions using zeolites

Authors:
A. Dyer University of Salford Cockcroft Building, Department of Chemistry and Applied Chemistry M5 4WT Salford (UK)

Search for other papers by A. Dyer in
Current site
Google Scholar
PubMed Close
and
L. Jozefowicz University of Salford Cockcroft Building, Department of Chemistry and Applied Chemistry M5 4WT Salford (UK)

Search for other papers by L. Jozefowicz in
Current site
Google Scholar
PubMed Close
Pages:
47–62
Online Publication Date:
14 Aug 2005
Publication Date:
17 May 1992
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02041016
Restricted access

Abstract  

The ability of zeolites to remove thorium-232 from naturally radioactive thorium nitrate solutions was studied by ion exchange, adsorption and surface phenomena. The best zeolites were a clinoptilolite from Mudhills, California, USA and a mordenite rich tuff from Eastgate, Nevada, USA. As the concentration of thorium in solution was increased the mechanism of thorium removal switches from that of partial ion-exchange to a surface precipitation. This was confirmed by electron probe microanalysis (EPMA) in conjunction with XRD and Energy Dispersive X-ray analysis (EDX). A Langmuir-type of adsorption occurred with the thorium-232 daughter isotopes at the same time as partial exchange/precipitation of the thorium parent which is in regular equilibrium with its natural daughters. Some experiments with234Th were carried out to confirm this hypothesis as well as column experiments to confirm the usefulness of the Th removal.

  • Collapse
  • Expand
Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

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)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Apr 2023 0 0 0
May 2023 1 0 0
Jun 2023 0 0 0
Jul 2023 1 0 0
Aug 2023 1 0 0
Sep 2023 0 0 0
Oct 2023 0 0 0