Glass-bonded ceramic waste forms for immobilization of radioiodine from caustic scrubber wastes
dc.contributor.author | Lere-Adams, AJ | en_AU |
dc.contributor.author | Wilkins, MCD | en_AU |
dc.contributor.author | Bollinger, D | en_AU |
dc.contributor.author | Stariha, S | en_AU |
dc.contributor.author | Farzana, R | en_AU |
dc.contributor.author | Dayal, P | en_AU |
dc.contributor.author | Gregg, DJ | en_AU |
dc.contributor.author | Chong, S | en_AU |
dc.contributor.author | Riley, BJ | en_AU |
dc.contributor.author | Heiden, ZM | en_AU |
dc.contributor.author | McCloy, JS | en_AU |
dc.date.accessioned | 2025-01-10T04:44:57Z | en_AU |
dc.date.available | 2025-01-10T04:44:57Z | en_AU |
dc.date.issued | 2024-01-26 | en_AU |
dc.date.statistics | 2024-10-23 | en_AU |
dc.description.abstract | Glass-bonded sodalite composite waste forms have been developed for the immobilization of liquid radioactive wastes resulting from off-gas treatment during aqueous reprocessing of used nuclear fuel, with a particular focus on 129I. The proposed composite waste form is comprised of aluminosilicate ceramic phases containing volatile radionuclides bonded with a glassy matrix. In this work, a suite of ten candidate low-temperature glass binders (ZnO-Bi2O3-based glasses and a Na2O-B2O3-SiO2 glass) were examined. Six glasses were mixed with caustic scrubber waste simulant previously converted into a sodalite-rich material (to provide glass fractions of 10 and 20 wt.%), uniaxially pressed into pellets, and sintered at 350 °C or 550 °C for 8 h in air. Iodine retention after heat treatment was assessed by neutron activation analysis, showing retention of 67–100 % of expected iodine. The aqueous durabilities of the resulting materials were then determined, following the ASTM C1308 standard test, showing iodine releases of 1 to 23 g m−2 after 4 d. The cumulative iodine release for the best performing system (a zinc-bismuth-borate glass binder) was <1 g m−2, and its iodine retention from processing was 67 %. The iodine releases compared favorably with other waste forms. In parallel, this best-performing composition was also consolidated via hot isostatic pressing (HIP) in a stainless-steel canister at 550 °C for 2 h under 100 MPa pressure. The HIPed sample was produced at the ∼20 g scale and showed improved densification and minimal reaction with the canister. © 2024 Elsevier B.V. | en_AU |
dc.description.sponsorship | This work was supported by the US Department of Energy – Nuclear Energy University Program (NEUP), DE-NE0008964. We thank Dr. Tina Nenoff for providing some of the Ferro 2922 for our study. PNNL is operated by the Battelle Memorial Institute for the U.S. Department of Energy under contract DE-AC05–76RL01830. Argonne National Laboratory is operated by UChicago Argonne, LLC, under Contract DE-AC02–06CH11357. ANSTO co-authors would like to thank Christian Deura for HIPing, Iveta Kurlapski for assistance with sample preparation and Nuclear Science and Technology (NST) at ANSTO for material characterizations. We also thank Gavin McCloy for assistance with the NAA sample preparation. | en_AU |
dc.identifier.articlenumber | 154938 | en_AU |
dc.identifier.citation | Lere-Adams, A. J., Dixon Wilkins, M. C., Bollinger, D., Stariha, S., Farzana, R., Dayal, P., Gregg, D. J., Chong, S., Riley, B. J., Heiden, Z. M., & McCloy, J. S. (2024). Glass-bonded ceramic waste forms for immobilization of radioiodine from caustic scrubber wastes. Journal of Nuclear Materials, 591, 154938. doi:10.1016/j.jnucmat.2024.154938 | en_AU |
dc.identifier.issn | 0022-3115 | en_AU |
dc.identifier.journaltitle | Journal of Nuclear Materials | en_AU |
dc.identifier.uri | https://doi.org/10.1016/j.jnucmat.2024.154938 | en_AU |
dc.identifier.uri | https://apo.ansto.gov.au/handle/10238/15905 | en_AU |
dc.identifier.volume | 591 | en_AU |
dc.language | English | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | Elsevier | en_AU |
dc.subject | Glass | en_AU |
dc.subject | Ceramics | en_AU |
dc.subject | Wastes | en_AU |
dc.subject | Radioactive wastes | en_AU |
dc.subject | Liquids | en_AU |
dc.subject | Aqueous solutions | en_AU |
dc.subject | Zinc | en_AU |
dc.subject | Bismuth | en_AU |
dc.subject | Sodium | en_AU |
dc.subject | Silicon | en_AU |
dc.subject | Heat treatments | en_AU |
dc.subject | Neutron Activation Analysis | en_AU |
dc.subject | Iodine | en_AU |
dc.title | Glass-bonded ceramic waste forms for immobilization of radioiodine from caustic scrubber wastes | en_AU |
dc.type | Journal Article | en_AU |
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