Batch study of 85Sr adsorption from synthetic seawater solutions using phosphate sorbents

Sorption of the 85 Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the 85 Sr were investigated....

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2017, Vol.314 (3), p.2437-2447
Main Authors: Kitikova, Natalja V., Ivanets, Andrei I., Shashkova, Irina L., Radkevich, Artsiom V., Shemet, Lyudmila V., Kul’bitskaya, Lyudmila V., Sillanpää, Mika
Format: Article
Language:English
Subjects:
Ammonium phosphates
Calcium phosphates
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Dolomite
Hadrons
Heavy Ions
Inorganic Chemistry
Magnesium
Mathematical models
Nuclear Chemistry
Nuclear Physics
Phase transitions
Phosphates
Physical Chemistry
Seawater
Sorbents
Sorption
Strontium 85
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Summary:Sorption of the 85 Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the 85 Sr were investigated. Hydrolytic stability, phase transformation of sorbents in model seawater solutions and change of the pH pzc were established with the aim of identifying factors, which influence on the sorption efficiency towards the 85 Sr radionuclide. The best sorption parameters in all range of salt concentration were obtained for sorbent containing tertiary calcium and magnesium phosphates and magnesium–ammonium phosphates.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-017-5592-4