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Decontamination and restoration technology development

Technical Report:

Abstract

This study is to develop a chemical decontamination technology applicable in a high radiation field such as spent fuel decontamination. A new decontamination formulation was developed in this study by adding ascorbic acid into the existing KAERI chemicals mainly consisting of EDTA and citric acid showed remarkable improvement in dissolution rate of nickel ferrite particles which were hard to be removed by conventional chemical decontamination reagents. The decontamination process development using the reagent was also carried out in this study. The hot loop decontamination tests using the specimens of Inconel-600 and SUS-304 contacted with the pressure boundary of primary coolant in Kori Unit 1 showed high decontamination factors which is as good as or even better than those of foreign processes such as LOMI and CAN-DECON. The decontamination test using spent fuel rod in Kori Unit 1 resulted in almost complete removal of crud from the rod surface. The material damages measured by corrosion surveilance specimen were very small and no localized corrosion were detected. The catalytic wet oxidation behaviors were also studied to decompose decontamination wastes. The Fe(II) catalyst was found to be effective. (Author).
Authors:
Oh, Won Zin; Won, Hui Zun; Kim, Hong Pyo; Jung, Chong Hun; Moon, Jei Kwon; Park, Sang Yun; Shim, Jun Bo; Choi, Wang Kyu; Jun, Yong Bum; Yoo, Kil Seong [1] 
  1. Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Publication Date:
Apr 01, 1991
Product Type:
Technical Report
Report Number:
KAERI-II/RR-22/90
Reference Number:
SCA: 220300; 400702; PA: AIX-23:014176; SN: 92000646645
Resource Relation:
Other Information: PBD: Apr 1991
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; DECONTAMINATION; CHROMIUM OXIDES; CLADDING; CORROSION; FERRITE; ION EXCHANGE; MANGANESE OXIDES; RADIOACTIVE WASTES; SPENT FUELS; 220300; 400702; FUEL ELEMENTS; PROPERTIES OF RADIOACTIVE MATERIALS
OSTI ID:
10113878
Research Organizations:
Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE92614813; TRN: KR9100146014176
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
421 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Oh, Won Zin, Won, Hui Zun, Kim, Hong Pyo, Jung, Chong Hun, Moon, Jei Kwon, Park, Sang Yun, Shim, Jun Bo, Choi, Wang Kyu, Jun, Yong Bum, and Yoo, Kil Seong. Decontamination and restoration technology development. Korea, Republic of: N. p., 1991. Web.
Oh, Won Zin, Won, Hui Zun, Kim, Hong Pyo, Jung, Chong Hun, Moon, Jei Kwon, Park, Sang Yun, Shim, Jun Bo, Choi, Wang Kyu, Jun, Yong Bum, & Yoo, Kil Seong. Decontamination and restoration technology development. Korea, Republic of.
Oh, Won Zin, Won, Hui Zun, Kim, Hong Pyo, Jung, Chong Hun, Moon, Jei Kwon, Park, Sang Yun, Shim, Jun Bo, Choi, Wang Kyu, Jun, Yong Bum, and Yoo, Kil Seong. 1991. "Decontamination and restoration technology development." Korea, Republic of.
@misc{etde_10113878,
title = {Decontamination and restoration technology development}
author = {Oh, Won Zin, Won, Hui Zun, Kim, Hong Pyo, Jung, Chong Hun, Moon, Jei Kwon, Park, Sang Yun, Shim, Jun Bo, Choi, Wang Kyu, Jun, Yong Bum, and Yoo, Kil Seong}
abstractNote = {This study is to develop a chemical decontamination technology applicable in a high radiation field such as spent fuel decontamination. A new decontamination formulation was developed in this study by adding ascorbic acid into the existing KAERI chemicals mainly consisting of EDTA and citric acid showed remarkable improvement in dissolution rate of nickel ferrite particles which were hard to be removed by conventional chemical decontamination reagents. The decontamination process development using the reagent was also carried out in this study. The hot loop decontamination tests using the specimens of Inconel-600 and SUS-304 contacted with the pressure boundary of primary coolant in Kori Unit 1 showed high decontamination factors which is as good as or even better than those of foreign processes such as LOMI and CAN-DECON. The decontamination test using spent fuel rod in Kori Unit 1 resulted in almost complete removal of crud from the rod surface. The material damages measured by corrosion surveilance specimen were very small and no localized corrosion were detected. The catalytic wet oxidation behaviors were also studied to decompose decontamination wastes. The Fe(II) catalyst was found to be effective. (Author).}
place = {Korea, Republic of}
year = {1991}
month = {Apr}
}