Cesium Removal from Simulated and Actual Hanford Tank Waste Using Ion Exchange

Effective cesium removal from Hanford tank wastes is presented using SuperLig® 644, an elutable, organic ion exchanger. Test materials included simulant 241 -AW-101, actual wastes from tanks 241-AP-101, 241-AN-102 combined with wash and leachate solutions from 241-C-104 solids, concentrated 241-AZ-1...

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Bibliographic Details
Published in:Separation science and technology 2005-01, Vol.40 (1-3), p.51-67
Main Authors: Fiskum, S. K., Blanchard, D. L., Arm, S. T., Peterson, R. A.
Format: Article
Language:English
Subjects:
CESIUM
CESIUM SEPARATION
Decontamination
Elution
HANFORD RESERVATION
HANFORD TANK WASTE
ION EXCHANGE
Ion exchange resins
LEACHATES
LEACHING
MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ORGANIC ION EXCHANGERS
Radioactive waste
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REGENERATION
RESINS
RIVER PROTECTION PROJECT WASTE TREATMENT PLANT
Separation
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Summary:Effective cesium removal from Hanford tank wastes is presented using SuperLig® 644, an elutable, organic ion exchanger. Test materials included simulant 241 -AW-101, actual wastes from tanks 241-AP-101, 241-AN-102 combined with wash and leachate solutions from 241-C-104 solids, concentrated 241-AZ-102, 241-AZ-101, and 241-AP-104. Multiple process cycle testing was conducted using dual, small columns in series. Cesium (Cs) load and elution profiles were developed. In all cases, high Cs decontamination factors from the Hanford tank waste were obtained. The Cs was efficiently eluted from the resin with 0.5 M HNOj, and the resin was regenerated with 0.25 M NaOH, allowing for repeated resin reuse.
ISSN:0149-6395
1520-5754
DOI:10.1081/SS-200041760