Sorption of Cesium from Alkaline Solutions onto Resorcinol-Formaldehyde Sorbents

被引：0
作者：
V. V. Milyutin
P. G. Zelenin
P. V. Kozlov
M. B. Remizov
D. A. Kondrutskii
机构：
[1] Russian Academy of Sciences,Frumkin Institute of Physical Chemistry and Electrochemistry
[2] Mayak Production Association,undefined
[3] Axion—Rare and Noble Metals Joint-Stock Company,undefined
来源：
Radiochemistry | 2019年 / 61卷
关键词：
resorcinol—formaldehyde ion-exchange resins; sorption; cesium radionuclides; removal; radioactive waste;
D O I：
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学科分类号：
摘要：
The performance of various phenolic ion exchangers in 137Cs sorption was studied. Resorcinol-formaldehyde sorbents (RFSs) produced by Axion—Rare and Noble Metals Joint-Stock Company (Russia) of the AXIONIT RCs grade exhibit the best sorption parameters. Ion-exchange materials based on RFSs efficiently take up 137Cs from solutions with pH > 10 in the presence of prevalent amounts of Na+ and K+ ions. Sorbents of AXIONIT RCs grade can be used in repeated sorption-desorption-regeneration cycles. Complete desorption of 137Cs is reached on passing 5–10 column volumes of 0.5–1.0 M HNO3 solutions. The possibility of using RFSs for 137Cs removal from model solutions simulating NPP bottom residues and for treatment of real liquid high-level waste, clarified phase from HLW storage tanks of the Radiochemical Plant of the Mayak Production Association, to remove cesium radionuclides was demonstrated.
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页码：714 / 718
页数：4
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