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

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http://hdl.handle.net/10138/279398

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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 2018 , ' The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams ' , Journal of Radioanalytical and Nuclear Chemistry , vol. 318 , no. 3 , pp. 2473-2491 . https://doi.org/10.1007/s10967-018-6329-8

Title: The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams
Author: Dyer, Alan; Hriljac, Joe; Evans, Nick; Stokes, Ian; Rand, Peter; Kellet, Simon; Harjula, Risto; Moller, Teresia; Maher, Zoe; Heatlie-Branson, Ross; Austin, Jonathan; Williamson-Owens, Scott; Higgins-Bos, Manon; Smith, Kurt; O'Brien, Luke; Smith, Nick; Bryan, Nick
Contributor: University of Helsinki, Research Group Harjula
Date: 2018-12
Language: eng
Number of pages: 19
Belongs to series: Journal of Radioanalytical and Nuclear Chemistry
ISSN: 0236-5731
URI: http://hdl.handle.net/10138/279398
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 Cs-134/137 and Sr-90 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.
Subject: Ion exchange
Clinoptilolite
Caesium
Strontium
Effluent treatment
RADIOSTRONTIUM-CONTAMINATED SOILS
CHEMICAL APPROACH
NATURAL ZEOLITE
EXCHANGE
STRONTIUM
SORPTION
REMOVAL
CESIUM
CS
CATION
116 Chemical sciences
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