The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

Dyer, A; Hriljac, J; Evans, N; Stokes, I; Rand, P; Kellet, S; Harjula, R; Moller, T; Maher, Z; Heatlie-Branson, R; Austin, J; Williamson-Owens, S; Higgins-Bos, M; Smith, K; O’Brien, L; Smith, N; Bryan, N

Abstract

Mud Hills clinoptilolite has been used in an effluent treatment plant (SIXEP) at the Sellafield nuclear reprocessing site. This material has been used to remove 134/137Cs and 90Sr successfully from effluents for 3 decades. Samples of the zeolite have been tested in column experiments to determine their ability to remove radioactive Cs+ and Sr2+ ions under increasing concentrations of competing ions, Ca2+, Mg2+, Na+ and K+. These ions caused increased elution of Cs+ and Sr2+. Ca2+, Mg2+ and K+ were more effective competitors than Na+. For Na+, it was found that if concentration was reduced, then column performance recovered rapidly.

Citation

Dyer, A., Hriljac, J., Evans, N., Stokes, I., Rand, P., Kellet, S., …Bryan, N. (2018). The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams. Journal of Radioanalytical and Nuclear Chemistry, 318(3), 2473-2491. https://doi.org/10.1007/s10967-018-6329-8

• Journal Article Type: Article
• Online Publication Date: Nov 22, 2018
• Publication Date: Nov 22, 2018
• Deposit Date: Dec 3, 2018
• Publicly Available Date: Dec 3, 2018
• Journal: Journal of Radioanalytical and Nuclear Chemistry
• Print ISSN: 0236-5731
• Publisher: Springer Verlag
• Volume: 318
• Issue: 3
• Pages: 2473-2491
• DOI: https://doi.org/10.1007/s10967-018-6329-8
• Keywords: Article, Ion exchange, Clinoptilolite, Caesium, Strontium, Effluent treatment
• Publisher URL: https://doi.org/10.1007/s10967-018-6329-8
• Additional Information: Funders : Sellafield Limited