3.9 Article

Sorption of selected radionuclides from liquid radioactive waste by sorbents of biological origin: The alkaline earth alginates

Journal

NUKLEONIKA
Volume 66, Issue 4, Pages 153-158

Publisher

SCIENDO
DOI: 10.2478/nuka-2021-0023

Keywords

Alginates; Biosorption; Radionuclides; Caesium; Strontium; Americium

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Calcium, strontium, and barium alginates showed prominent adsorption of 241Am3+, 85Sr2+, and 137Cs+ in the pH range of 5-6. The most favorable time for the adsorption process was found to be around 2 hours for calcium alginate and 4 hours for the other two sorbents.
The sorption of 241Am3+, 85Sr2+ and 137Cs+ by calcium, strontium and barium alginates has been studied under different operation conditions. The most prominent adsorption was found in the pH range of 5-6 for all systems, even if the observed dependence on the acidity of the solution was small. The most favourable time for the adsorption process was found to be about 2 h for calcium alginate and 4 h for the other two sorbents.

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