Recovery of iodine and cesium radionuclides localized on granulated sorbent Fizkhimin from air-vapor phase |
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| Authors: | S A Kulyukhin N A Konovalova N B Mikheev A N Kamenskaya I A Rumer |
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| Affiliation: | (1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia |
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| Abstract: | A procedure for recovery of 131I and 137Cs radionuclides from Fizkhimin sorbent containing 137Cs131I and 137CsOH radioaerosols and also of Ag131I formed in the sorbent matrix during chemisorption of gaseous 131I2 and CH3 131I was developed. Sequential treatment of the sorbent with 6.0 M HNO3 and then 10.0 M N2H4·nH2O allows practically complete (more than 99%) removal of 137Cs and noticeable decrease of the 131I content in the sorbent matrix (in some cases, by a factor of more than 10). |
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