Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 470, Issue -, Pages 307-326Publisher
ELSEVIER
DOI: 10.1016/j.jnucmat.2015.11.038
Keywords
Radioiodine; Waste forms; Iodine capture; Reprocessing
Funding
- U.S. Department of Energy Office of Nuclear Energy (DOE-NE)
- Battelle [DE-AC05-76RL01830]
- Strata-G (BOA) [4200000478]
- DOE-NE
- Nuclear Engineering University Program [DE-NE0008257]
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The immobilization of radioiodine produced from reprocessing used nuclear fuel is a growing priority for research and development of nuclear waste forms. This review provides a comprehensive summary of the current issues surrounding processing and containment of I-129, the isotope of greatest concern due to its long half-life of 1.6 x 10(7) y and potential incorporation into the human body. Strategies for disposal of radioiodine, captured by both wet scrubbing and solid sorbents, are discussed, as well as potential iodine waste streams for insertion into an immobilization process. Next, consideration of direct disposal of salts, incorporation into glasses, ceramics, cements, and other phases is discussed. The bulk of the review is devoted to an assessment of various sorbents for iodine and of waste forms described in the literature, particularly inorganic minerals, ceramics, and glasses. This review also contains recommendations for future research needed to address radioiodine immobilization materials and processes. (C) 2015 Elsevier B.V. This is an open access article under the CC BY-NC-ND license.
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