Alpha Decontamination of Waste Zircaloy Cladding Hull

Alpha decontamination of waste zircaloy cladding hull was studied using electrochemical dissolution with divalent silver. It was investigated that the electrochemical dissolution process of non-radioactive zircaloy cladding hull, it was found that the zircaloy cladding hull was insoluble in divalent...

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Main Authors: CONG Hai-feng, XIAO Song-tao, SU Zhe
Format: Article
Language:zho
Published: Editorial Office of Journal of Nuclear and Radiochemistry 2022-06-01
Series:He huaxue yu fangshe huaxue
Subjects:
Online Access:http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021111
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author CONG Hai-feng
XIAO Song-tao
SU Zhe
author_facet CONG Hai-feng
XIAO Song-tao
SU Zhe
author_sort CONG Hai-feng
collection DOAJ
description Alpha decontamination of waste zircaloy cladding hull was studied using electrochemical dissolution with divalent silver. It was investigated that the electrochemical dissolution process of non-radioactive zircaloy cladding hull, it was found that the zircaloy cladding hull was insoluble in divalent silver and nitric acid solution, probably because the surface layer of the zircaloy cladding hull oxidized to zirconium oxide by the divalent silver in the divalent silver and nitric acid system, which inhibited the dissolution of the zircaloy cladding hull. The electrochemical dissolving process of waste zircaloy cladding hull was established, and the alpha decontamination test of waste zircaloy cladding hull shear section was carried out. The residual specific alpha activity of the waste zircaloy cladding hull is 2.0×105 Bq/kg after electrochemical dissolution. The source items of waste zircaloy cladding hull were analyzed. 241Am and 238Pu are the main nuclides contributing to the specific alpha activity of the waste zircaloy cladding hull.
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spelling doaj.art-34f22971b8ad4f36a7fdebbcbdd564082024-04-06T05:48:45ZzhoEditorial Office of Journal of Nuclear and RadiochemistryHe huaxue yu fangshe huaxue0253-99502022-06-0144336236510.7538/hhx.2022.YX.2021111Alpha Decontamination of Waste Zircaloy Cladding HullCONG Hai-feng0XIAO Song-tao1SU Zhe2China Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyAlpha decontamination of waste zircaloy cladding hull was studied using electrochemical dissolution with divalent silver. It was investigated that the electrochemical dissolution process of non-radioactive zircaloy cladding hull, it was found that the zircaloy cladding hull was insoluble in divalent silver and nitric acid solution, probably because the surface layer of the zircaloy cladding hull oxidized to zirconium oxide by the divalent silver in the divalent silver and nitric acid system, which inhibited the dissolution of the zircaloy cladding hull. The electrochemical dissolving process of waste zircaloy cladding hull was established, and the alpha decontamination test of waste zircaloy cladding hull shear section was carried out. The residual specific alpha activity of the waste zircaloy cladding hull is 2.0×105 Bq/kg after electrochemical dissolution. The source items of waste zircaloy cladding hull were analyzed. 241Am and 238Pu are the main nuclides contributing to the specific alpha activity of the waste zircaloy cladding hull.http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021111waste zircaloy cladding hullag(ⅱ)indirect oxidation dissolutionalpha decontamination
spellingShingle CONG Hai-feng
XIAO Song-tao
SU Zhe
Alpha Decontamination of Waste Zircaloy Cladding Hull
He huaxue yu fangshe huaxue
waste zircaloy cladding hull
ag(ⅱ)
indirect oxidation dissolution
alpha decontamination
title Alpha Decontamination of Waste Zircaloy Cladding Hull
title_full Alpha Decontamination of Waste Zircaloy Cladding Hull
title_fullStr Alpha Decontamination of Waste Zircaloy Cladding Hull
title_full_unstemmed Alpha Decontamination of Waste Zircaloy Cladding Hull
title_short Alpha Decontamination of Waste Zircaloy Cladding Hull
title_sort alpha decontamination of waste zircaloy cladding hull
topic waste zircaloy cladding hull
ag(ⅱ)
indirect oxidation dissolution
alpha decontamination
url http://www.jnrc.org.cn/CN/10.7538/hhx.2022.YX.2021111
work_keys_str_mv AT conghaifeng alphadecontaminationofwastezircaloycladdinghull
AT xiaosongtao alphadecontaminationofwastezircaloycladdinghull
AT suzhe alphadecontaminationofwastezircaloycladdinghull