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Publications in Scientific Journals:

J.H. Sterba, H. Sperrer, F. Wallenko, Jan Welch:
"Adsorption characteristics of a clinoptilolite-rich zeolite compound for Sr and Cs";
Journal of Radioanalytical and Nuclear Chemistry, online first (2018).



English abstract:
The Sr and Cs adsorption capacities of LithoFillTM, LithoGranTM and a competing clinoptilolite containing zeolite product were investigated by radioanalytical methods (85Sr and 134Cs gamma spectroscopy). The dependence of adsorption and adsorption rate on physical factors including temperature, available ions and time were assessed. In addition, the reversibility of adsorption under high ionic strength conditions was also examined. In general, cesium is more strongly adsorbed than strontium, adsorption yields are generally independent of temperature (from room temperature to 65 C) and adsorption is relatively rapid (identical results for 2 or 5 day adsorption times). As expected, increasing the concentration of other ions in solution tends to reduce adsorption of cesium and strontium. In general, Cs adsorption ranges between 54.5 and 45.2 mg/g for LitoFill and LitoGran samples and between 36.9 and 24.4 mg/g for the competing product. For Sr adsorption, ranges are 30-21 mg/g and 7.3-6.7 mg/g respectively, leading to the conclusion that the higher content of clinoptilolite in the LitoFill/LitoGran samples results in better adsorption characteristics.

Keywords:
Zeolite, Clinoptilolite, Strontium, Cesium, Ion exchange


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1007/s10967-018-6096-6

Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_271293.pdf


Created from the Publication Database of the Vienna University of Technology.