Sorption of Cs and Sr radionuclides within natural carbonates

Understanding the mobility of radiocesium and radiostrontium within geological environment is important from ‘deep geological repository system’—safety assessment point of view. Cs and Sr radionuclide sorption studies have been carried out with a stalagmite sample collected from Lesser—Himalayas. De...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2017-04, Vol.312 (1), p.19-28
Main Authors: Sengupta, Pranesh, Sanwal, Jaishri, Mathi, P., Mondal, Jahur A., Mahadik, P., Dudwadkar, N., Gandhi, P. M.
Format: Article
Language:English
Subjects:
Analysis
Aragonite
Calcite
Calcite crystals
Carbonates
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Geology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Sorption
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Summary:Understanding the mobility of radiocesium and radiostrontium within geological environment is important from ‘deep geological repository system’—safety assessment point of view. Cs and Sr radionuclide sorption studies have been carried out with a stalagmite sample collected from Lesser—Himalayas. Detailed microstructural studies, backed up by micro-Raman and LIBS analyses, identified three different domains within the sample; constituted of microcrystalline calcite, botryoidal aragonite and palisadic calcite respectively. Experimental studies showed that both the radionuclides exhibit moderate to low sorption coefficients within all the different domains of stalagmite under acidic environment.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-017-5206-1