Removal of uranyl ions from UO 2(NO 3) 2 solution by means of Chlorella vulgaris and Dunaliella salina algae

Abstract

This paper deals with a study of the biosorption of UO 22+ ions on two green algae: Chlorella vulgaris and Dunaliella salina. By investigating the retention degree versus contact time from Langmuir and Freundlich biosorption isotherms, kinetic investigations and FTIR spectra it was found that the biosorption process was greater for Chlorella vulgaris than for Dunaliella salina. A new kinetics method is proposed to establish the reaction order concerning the biosorption process of uranyl ions on these biomasses. © Versita Sp. z o.o.