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Title: Materials and processes for the effective capture and immobilization of radioiodine: A review

In this study, 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 129I, the isotope of greatest concern due to its long half-life of 1.6 × 107 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.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Strata-G, LLC, Knoxville, TN (United States)
  3. Washington State Univ., Pullman, WA (United States)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Report Number(s):
PNNL-SA-111665
Journal ID: ISSN 0022-3115; PII: S0022311515303469
Grant/Contract Number:
AC05-76RL01830; 4200000478; NE0008257
Type:
Published Article
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 470; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
radioiodine; waste forms; iodine capture; reprocessing; waste form
OSTI Identifier:
1252050
Alternate Identifier(s):
OSTI ID: 1249358; OSTI ID: 1251313