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

JOURNAL OF NUCLEAR MATERIALS

卷:470

Review

Riley, Brian J.¹  Vienna, John D.¹  Strachan, Denis M.²  McCloy, John S.³  Jerden, James L., Jr.⁴ 

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Strata G LLC, Knoxville, TN 37932 USA

[3] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA

[4] Argonne Natl Lab, Lemont, IL 60439 USA

关键词: Radioiodine;    Waste forms;    Iodine capture;    Reprocessing;   

DOI  :  10.1016/j.jnucmat.2015.11.038

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free