Pollucite ceramics and glass-ceramics as advanced wasteforms for the immobilization of Cs-Lloaded IONSIV wastes

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dc.contributor.authorBahmanrokh, Gen_AU
dc.contributor.authorWhitelock, Een_AU
dc.contributor.authorDayal, Pen_AU
dc.contributor.authorAughterson, RDen_AU
dc.contributor.authorPeristyy, Aen_AU
dc.contributor.authorSutton, Pen_AU
dc.contributor.authorFarzana, Ren_AU
dc.contributor.authorAbraham, JLen_AU
dc.contributor.authorDegeling, Jen_AU
dc.contributor.authorPage, Men_AU
dc.contributor.authorSorrell, CCen_AU
dc.contributor.authorKoshy, Pen_AU
dc.contributor.authorGregg, DJen_AU
dc.date.accessioned2025-10-14T22:40:07Zen_AU
dc.date.available2025-10-14T22:40:07Zen_AU
dc.date.issued2025-04-14en_AU
dc.date.statistics2025-10-14en_AU
dc.description.abstractIONSIV R9120-B is a commercial inorganic ion exchange material used in the nuclear industry for the removal of Cs-137 from contaminated liquids. Once IONSIV is loaded with radioactive species, it is considered waste and requires treatment by incorporation into a stable wasteform to prevent radionuclide release during disposal. This work presents a promising, novel candidate glass-ceramic wasteform based on pollucite for the immobilization of cesium-loaded IONSIV. The tailored glass-ceramic provides chemical and processing flexibility through the addition of small amounts of glass formers, with cesium partitioned predominantly to the more chemically durable ceramic phase. A high waste loading of ∼70-80 wt % was achieved, along with a consistent phase assemblage of pollucite, srilankite, rutile, and glass. The chemical durability of the candidate wasteform was assessed using the ASTM C1285 standard method, with the results indicating high chemical durability relative to other candidate materials for cesium immobilization. A single preferred pollucite glass-ceramic design with a 70 wt % waste loading was selected and validated using unloaded and Cs-loaded IONSIV. Importantly, the design ensures consistent phase formation irrespective of Cs-loading on IONSIV, demonstrating tolerance to accommodate compositional variations in the waste. © 2025 The Authors. Published by American Chemical Society. This article is licensed under CC-BY 4.0en_AU
dc.format.mediumPrint-Electronicen_AU
dc.identifier.citationBahmanrokh, G., Whitelock, E., Dayal, P., Aughterson, R. D., Peristyy, A., Sutton, P., Farzana, R., Abraham, J. L., Degeling, J., Page, M., Sorrell, C. C., Koshy, P., & Gregg, D. J. (2025). Pollucite ceramics and glass-ceramics as advanced wasteforms for the immobilization of Cs-Lloaded IONSIV wastes. Environmental Science & Technology, 59(16), 7948–7959. doi:10.1021/acs.est.5c00266en_AU
dc.identifier.issn0013-936Xen_AU
dc.identifier.issn1520-5851en_AU
dc.identifier.issue16en_AU
dc.identifier.pagination7948-7959en_AU
dc.identifier.urihttps://doi.org/10.1021/acs.est.5c00266en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16600en_AU
dc.identifier.volume59en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectPolluciteen_AU
dc.subjectCeramicsen_AU
dc.subjectCesiumen_AU
dc.subjectOxidesen_AU
dc.subjectWastesen_AU
dc.subjectMaterialsen_AU
dc.subjectAmorphous stateen_AU
dc.subjectRadioactive wastesen_AU
dc.subjectHigh-level radioactive wastesen_AU
dc.subjectLow-level radioactive wastesen_AU
dc.subjectIon exchangeen_AU
dc.titlePollucite ceramics and glass-ceramics as advanced wasteforms for the immobilization of Cs-Lloaded IONSIV wastesen_AU
dc.typeBooken_AU
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