Application of silica gel to immobilise iodine waste by low-temperature sintering. (1st February 2021)

• Record Type: Journal Article
• Authors: Wei, Guilin; Shu, Xiaoyan; Zhang, Zhentao; Han, Wenhong; Luo, Fen; Liu, Yi; Yang, Jingjun; Li, Bingsheng; Xie, Yi; Wang, Lan; Lu, Xirui
• Is Part Of: Philosophical magazine letters. Volume 101:Number 2(2021)
• Page Start: 79
• Page End: 84
• Publication Date: 2021-02-01
• Subjects: Amorphous materials -- sintering -- silver iodide -- immobilisation of iodine waste -- SEM; Condensed matter -- Periodicals; Physics -- Periodicals; Solid state physics -- Periodicals; Physique -- Périodiques; 530.41
• DOI: 10.1080/09500839.2020.1851055
• Languages: English
• ISSNs: 0950-0839

Abstract

ABSTRACT : The disposal of radioactive iodine waste is a top priority for the nuclear industry. This work mainly studies the replacement of crystalline material (SiO2 ) in silicate-based material with amorphous material (silica gel) to immobilise iodine waste at low-sintering temperatures. The results show that under low-temperature sintering conditions, B2 O3 –Bi2 O3 –ZnO–silica gel is more suitable than B2 O3 –Bi2 O3 –ZnO–SiO2 for immobilising iodine waste because the former one has a higher amorphous index and density than the latter. This novel insight can improve the disposal of radioactive waste at low-sintering temperatures.