Radiochemical studies of the sorption behavior of strontium and barium

Date
1995
Authors
Göktürk, H.
Eylem, C.
Hatipoĝlu, S.
Erten, H. N.
Advisor
Instructor
Source Title
Journal of Radioanalytical and Nuclear Chemistry Articles
Print ISSN
0236-5731
Electronic ISSN
Publisher
Kluwer Academic Publishers
Volume
198
Issue
2
Pages
449 - 456
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

The sorption behavior of strontium and barium on kaolinite, bentonite and chlorite-illite mixed clay was studied by radioanalytical techniques using the batch method.90Sr (29.1 y) and133Ba (10.5 y) were used as radiotracers. Characterization of the solid matrices was done by FTIR and XRD spectrometries and specific surface area measurements. Synthetic groundwater was used as the aqueous phase. The variation of the distribution ratio Rd, as a function of metal ion loading was examined. The sorption isotherms were fitted to various isotherm models. The sorption energies were calculated to be in the range of 8-10 kJ/mol suggesting an ion exchange type of sorption mechanism. In detailed experiments, chlorite-illite mixed clay was first presaturated with K+, Sr2+, Ca2+ and Al3+ ions, respectively, prior to sorption studies with Ba2+ ions. The results of Ca2+ pretreated chlorite-illite were very similar to those of natural chlorite-illite, suggesting that the Ba2+ ion exchanges primarily with the Ca2+ ion on the clay minerals. © 1995 Akadémiai Kiadó.

Course
Other identifiers
Book Title
Keywords
Barium, Ground water, Strontium, Adsorption, Radiochemistry, Waste management
Citation
Published Version (Please cite this version)