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Separation of 137Cs from Acidic Nuclear Waste Simulant via an Engineered Inorganic Ion Exchanger

Published online by Cambridge University Press:  17 March 2011

T.J. Tranter ,
T.A. Vereshchagina ,
A.G. Anshits ,
E. Fomenko ,
A.S. Aloy  and
N.V. Sapozhnikova
T.J. Tranter*
Affiliation:
Idaho National Engineering and Environmental Laboratory, P.O. Box 1625, Idaho Falls, ID USA, 83415
T.A. Vereshchagina
Affiliation:
Institute of Chemistry and Chemical Technologies, 42 K. Marx St., Krasnoyarsk, Russia, 660049
A.G. Anshits
Affiliation:
Institute of Chemistry and Chemical Technologies, 42 K. Marx St., Krasnoyarsk, Russia, 660049
E. Fomenko
Affiliation:
Institute of Chemistry and Chemical Technologies, 42 K. Marx St., Krasnoyarsk, Russia, 660049
A.S. Aloy
Affiliation:
V.G. Khlopin Radium Institute, 2-nd Murinskiy Ave., St. Petersburg, Russia, 194021
N.V. Sapozhnikova
Affiliation:
V.G. Khlopin Radium Institute, 2-nd Murinskiy Ave., St. Petersburg, Russia, 194021
*
Corresponding author: email ttranter@inel.gov
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Abstract

An engineered ion exchange material has been prepared for the specific purpose of removing radioactive cesium from acidic waste. Separating the fission product 137Cs from the bulk of the nuclear waste stream is often advantageous because, after typical cooling times, this isotope is usually the primary source of gamma radiation dose. The engineered ion exchanger was prepared using ammonium molybdophosphate impregnated into hollow glass crystalline microspheres. The microspheres or cenospheres, are refractory compounds of silica and alumina that are derived from the fly ash produced in coal combustion. This paper describes equilibrium experiments that were conducted with the engineered ion exchanger and a simulated acidic waste solution. These tests indicate that the new material has a high capacity and selectivity for cesium in these matrices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 824: Symposium CC – Scientific Basis for Nuclear Waste Management XXVIII , 2004 , CC8.26
Copyright
Copyright © Materials Research Society 2004

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