Understanding the sorption behavior of tetra- and hexavalent plutonium on fungus Rhizopus arrhizus dead biomass

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• 作者：Preetam Kishor ; V. C. Adya ; Arijit Sengupta…
• 关键词：Plutonium ; Bio sorption ; Isotherm ; Sorption kinetics ; Radiolytic stability
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：311
• 期：1
• 页码：903-912
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
• 出版者：Springer Netherlands
• ISSN：1588-2780
• 卷排序：311

文摘

An attempt was made to understand the sorption behaviour of Pu4+ and PuO₂2+ on Rhizopus arrhizus fungus. The sorption data were analyzed using Langmuir, Dubinin–Radushkevich, Freundlich isotherm and Tempkin isotherms, which revealed that the sorption proceeds via chemisorption through mono layer following Langmuir isotherm. the sorption kinetics were analyzed by different models revealing the predominance of pseudo 2nd order kinetics. Oxalic acid and sodium carbonate were used for effective stripping of Pu4+ and PuO₂2+, respectively. This biomass was found to be radiolytically stable and finally was applied for processing of SHLW from RR and FBR origins.