Pages: 281-287

Authors: Marija Z. Šljivić-Ivanović, Ivana V. Jelić, Aleksandra M. Lončar,
Dušan P. Nikezić, Slavko D. Dimović, and Boris B. Lončar

Abstract

The sorption properties of waste facade, brick, and asphalt sample towards Sr(II), Co(II), and Ni(II) ions from single and multicomponent solutions were investigated. The highest sorption capacity was found for Ni(II) ions, while the most effective sorbent was facade. Simplex Centroid Mixture Design was used in order to investigate the sorption processes of ions from solutions with different composition as well as the competition between the cations. Based on the statistical analysis results, the equations for data modeling were proposed. According to the observations, the investigated solid matrices can be effectively used for the liquid radioactive waste treatment. Furthermore, the applied methodology turned out to be an easy and operational way for the investigations of multicomponent sorption processes.

Key words: liquid radioactive waste, mixture design, sorption

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