STUDY ON RADIATION EFFECTS ON AMP/SIO2 ADSORBENT FOR SEPARATION OF CESIUM FROM HIGH LEVEL RADIOACTIVE WASTE

被引：0
|
作者：
Wu, Yan [1 ]
Zhang, Xiaoxia [1 ]
Wei, Yuezhou [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China
[2] Guangxi Univ, Coll Resources & Met, Nanning 530004, Peoples R China
来源：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2017, VOL 7 | 2017年
基金：
中国国家自然科学基金;
关键词：
AMMONIUM MOLYBDOPHOSPHATE; ADSORPTION; EXCHANGER; WATER;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A silica-based ammonium molybdophosphate (AMP/SiO2) was successfully applied to remove Cs(I) from radioactive waste water in our previous study. The structure characterization of irradiated AMP/SiO2 was carried out by X-ray diffraction (XRD). The effect of the initial concentration of metal ions and acidity concentration for removal Cs(I) by irradiated AMP/SiO2 were investigated. No obvious difference was observed for AMP/SiO2 with 300 kGy absorbed dose from the XRD patterns, except the slightly shift of (110) peak toward a small angle. Relatively large distribution coefficient (8 x 10(3) cm3/g) of Cs(I) was obtained in 3M HNO3 by irradiated AMP/SiO2. The maximum adsorption capacity of AMP/SiO2 irradiated at 300 kGy was estimated as 22.4 mg/g. The loss of molybdenum from AMP/SiO2 in 3 M HNO3 with 200 kGy absorbed dose is less than 5%.
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页数：4
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