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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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