PRELIMINARY EVALUATION OF CHROMATOGRAPHIC TECHNIQUES FOR THE SEPARATION OF RADIONUCLIDES FROM HIGH-LEVEL RADIOACTIVE WASTE
作者:
GreggJ. Lumetta,
DennisW. Wester,
JohnR. Morrey,
MichaelJ. Wagner,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1993)
卷期:
Volume 11,
issue 4
页码: 663-682
ISSN:0736-6299
年代: 1993
DOI:10.1080/07366299308918180
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three commercially available chromatographic materials were tested in a column mode for use in separating Am, Pu, and™Sr from actual neutralized cladding removal waste (NCRW) taken from a Hanford waste tank. For these experiments, the NCRW was dissolved in HNO3/HF solutions. TRU-Spec™was evaluated for the separation of transuranic elements. TRU-Spec™removed Am and Pu from a dissolved NCRW solution, but not as effectively as the TRUEX solvent extraction process. Sr. Spec™and SuperLig™601 were evaluated for the separation of Sr, Sr- Spec™performed very well in the separation of SK from dissolved NCRW solution; Sr was not detectable in the column effluent after six bed volumes of solution had been passed through the column. SuperLig™601 was less effective than Sr- Spec™at separating Sr from dissolved NCRW solution under the conditions used in this experiment. The poor performance of SuperLig Spec™601 has been attributed to slow kinetics of absorption of Sr.
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