Immobilization of iodine waste at low sintering temperature: Phase evolution and microstructure transformation

Wu, Dong; Wei, Guilin; Shu, Xiaoyan; Liu, Yi; Han, Wenhong; Zhang, Zhentao; Chen, Shunzhang; Xie, Yi; Luo, Fa; Lu, Xirui

doi:10.1016/j.anucene.2022.109145

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…According to the TGA results, the AgI-Bi-Si-Zn-oxide glass showed no weight loss when heated to 550°C at 10°C/min, while the mass loss of AgI-Mordenite was 18.2% when heated at 20°C/min to 600°C. In studies by Wei et al (2020) , He et al (2022) and other researchers ( Liu et al, 2021 ; Wei et al, 2021 ; Wu et al, 2021 ; Yan et al, 2021 ; Wu et al, 2022 ), B 2 O 3 -Bi 2 O 3 -ZnO composites were used for immobilization of iodine waste in the form of AgI with low sintering temperature. Yang et al (2021) ; Yang et al (2022) prepared a Bi-based silica ceramic composite (Si-Cs 3 Bi 2 I 9 perovskite) for iodine immobilization.…”

Section: Materials Stability and Immobilizationmentioning

confidence: 99%

Recent advances in the removal of radioactive iodine by bismuth-based materials

et al. 2023

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Nowadays, the demand for nuclear power is continue increasing due to its safety, cleanliness, and high economic benefits. Radioactive iodine from nuclear accidents and nuclear waste treatment processes poses a threat to humans and the environment. Therefore, the capture and storage of radioactive iodine are vital. Bismuth-based (Bi-based) materials have drawn much attention as low-toxicity and economical materials for removing and immobilizing iodine. Recent advances in adsorption and immobilization of vapor iodine by the Bi-based materials are discussed in this review, in addition with the removal of iodine from solution. It points out the neglected areas in this research topic and provides suggestions for further development and application of Bi-based materials in the removal of radioactive iodine.

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Section: Materials Stability and Immobilizationmentioning

confidence: 99%

Recent advances in the removal of radioactive iodine by bismuth-based materials

et al. 2023

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Efficient capture and stable storage of radioactive iodine by bismuth-based ZIF-8 derived carbon materials as adsorbents

Liu

Zeng

et al. 2022

Separation and Purification Technology

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Review of recent developments in iodine wasteform production

et al. 2022

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Radioiodine capture and immobilization is not only important to consider during the operation of reactors (i.e., I-131), during nuclear accidents (i.e., I-131 and I-129) or nuclear fuel reprocessing (i.e., I-131 and I-129), but also during disposal of nuclear wastes (i.e., I-129). Most disposal plans for I-129-containing waste forms (including spent nuclear fuel) propose to store them in underground repositories. Here, iodine can be highly mobile and, given its radiotoxicity, needs to be carefully managed to minimize long-term environmental impacts arising from disposal. Typically, any process that has been used to capture iodine from reprocessing or in a reactor is not suitable for direct disposal, rather conversion into a wasteform for disposal is required. The objectives of these materials are to use either chemical immobilization or physical encapsulation to reduce the leaching of iodine by groundwaters. Some of the more recent ideas have been to design capture materials that better align with disposal concepts, making the industrial processing requirements easier. Research on iodine capture materials and wasteforms has been extensive. This review will act as both an update on the state of the research since the last time it was comprehensively summarized, and an evaluation of the industrial techniques required to create the proposed iodine wasteforms in terms of resulting material chemistry and applicability.

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Immobilization of iodine waste at low sintering temperature: Phase evolution and microstructure transformation

Cited by 3 publications

References 43 publications

Recent advances in the removal of radioactive iodine by bismuth-based materials

Recent advances in the removal of radioactive iodine by bismuth-based materials

Efficient capture and stable storage of radioactive iodine by bismuth-based ZIF-8 derived carbon materials as adsorbents

Review of recent developments in iodine wasteform production

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