A research on the removal of radioactive pollutants from metal surface by means of Ce (IV)/HNO3 decontamination technology

A decontamination study of iodine-131 contamination by Ce (IV)/HNO 3 was carried out using orthogonal tests for radioactive contamination of metal surfaces. The effects of nitric acid concentration, Ce (IV) concentration, temperature, and decontamination time on the decontamination factors of brass...

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Veröffentlicht in:	Journal of radioanalytical and nuclear chemistry 2023-06, Vol.332 (6), p.2349-2357
Hauptverfasser:	Ma, Guangnai, Zhou, Jianliang, Wang, Qichao, Li, Sheng, Wang, Chao
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum Chemistry Chemistry and Materials Science Contamination Decontamination Diagnostic Radiology Hadrons Heavy Ions Inorganic Chemistry Iodine 131 Iodine isotopes Metal surfaces Nitric acid Nuclear Chemistry Nuclear Physics Physical Chemistry
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Beschreibung
Zusammenfassung:	A decontamination study of iodine-131 contamination by Ce (IV)/HNO 3 was carried out using orthogonal tests for radioactive contamination of metal surfaces. The effects of nitric acid concentration, Ce (IV) concentration, temperature, and decontamination time on the decontamination factors of brass and aluminum were obtained. The maximum value of decontamination factor was 5.80 for brass: temperature was approximately equal to Ce (IV) concentration than decontamination time than nitric acid concentration, and the maximum value of decontamination factor was 319.49 for aluminum: Ce (IV) concentration than decontamination time than nitric acid concentration than temperature.
ISSN:	0236-5731 1588-2780
DOI:	10.1007/s10967-023-08812-9