Biosorption of thorium from aqueous solution by Ca-pretreated brown algae Cystoseira indica

Abstract

o C with pH of 3. The thermodynamic parameters indicated the biosorption of Th on the biomass was a feas- ible, spontaneous and endothermic process. Th sorption capacity remained unaffected or slightly affected (<10% in- hibition) in the presence of several interfering ions such as uranium (VI), nickel (II) and copper (II). The reusability of the biomass was also determined after five sorption-desorption cycles.