Strontium and cesium contamination behavior on Q235b carbon steel of radioactive liquid waste tank in alkaline environment

Q235b carbon steel, main material of early alkaline radioactive liquid waste tank, can be contaminated by 90 Sr and 137 Cs. In this work, batch contamination experiments were conducted to simulate contamination of steel. The results indicated that Fe 3 O 4 , main corrosion product, fell off to form...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023-02, Vol.332 (2), p.261-272
Main Authors: Gu, Yu, Zhang, Yi, Li, Xin-Wei, Bi, Shi-Cheng, Zheng, Zuo-Xi
Format: Article
Language:English
Subjects:
Carbon steel
Carbon steels
Cesium 137
Cesium isotopes
Chemistry
Chemistry and Materials Science
Contamination
Corrosion
Corrosion products
Decontamination
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Iron oxides
Liquid wastes
Nuclear Chemistry
Nuclear energy
Nuclear fuel cycle
Nuclear Physics
Physical Chemistry
Sludge
Steel
Strontium
Strontium 90
Strontium carbonate
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Summary:Q235b carbon steel, main material of early alkaline radioactive liquid waste tank, can be contaminated by 90 Sr and 137 Cs. In this work, batch contamination experiments were conducted to simulate contamination of steel. The results indicated that Fe 3 O 4 , main corrosion product, fell off to form sludges. Furthermore, Sr existed mainly in form of SrCO 3 in oxide layer and sludge, and the corrosion made Sr enter into corrosion defects. While Cs was more limited to surface, mainly in form of CsNO 3 on the surface of oxide layer and sludge. The findings of this work will facilitate the development of efficient decontamination techniques. Graphic abstract
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-022-08722-2