Removal of cesium from alkaline waste solution: Part II – Column ion exchange study
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Kofi Adu-Wusu
Summary
Column ion exchange tests have been used to demonstrate the ability of SuperLig® 644 resin to remove 137Cs from highly alkaline radioactive waste. The column test resulted in 137Cs removal and overall decontamination factor of 99.6% (lead column) and 517000 (lag column) respectively. The concentration of 137Cs in the lag column effluent (0.000423 μCi 137Cs/mL) was two orders of magnitude below the low-activity waste vitrification limit of 0.087 μCi 137Cs/mL. The bed volume (BV=175) at the onset of breakthrough exceeded the requirement of 100 BV at 50% breakthrough. Cesium elution with 0.5 M HNO3 was adequate with a peak BV of 3.5. C/C0=0.01 occurred at 10 BV of eluant, which is less than the target of 15 BV. Further, 99.99% of sorbed cesium was eluted from the resin. The residual 137Cs on the regenerated resin after the column operation was 23 μCi/g dry Na+ form resin.
© Oldenbourg Wissenschaftsverlag, München
Articles in the same Issue
- Effect of aqueous acetic, oxalic and carbonic acids on the adsorption of americium onto α-alumina
- Thorium reactions in borosilicate-glass/water systems
- Removal of cesium from alkaline waste solution: Part I – Batch ion exchange study
- Removal of cesium from alkaline waste solution: Part II – Column ion exchange study
- Sorption of radiocobalt on pottery
- Kinetic and thermodynamic investigations of strontium ions retention by natural kaolinite and clinoptilolite minerals
- Air quality evaluation of some industrial cities of Pakistan using INAA and AAS
Articles in the same Issue
- Effect of aqueous acetic, oxalic and carbonic acids on the adsorption of americium onto α-alumina
- Thorium reactions in borosilicate-glass/water systems
- Removal of cesium from alkaline waste solution: Part I – Batch ion exchange study
- Removal of cesium from alkaline waste solution: Part II – Column ion exchange study
- Sorption of radiocobalt on pottery
- Kinetic and thermodynamic investigations of strontium ions retention by natural kaolinite and clinoptilolite minerals
- Air quality evaluation of some industrial cities of Pakistan using INAA and AAS
