La(III), Cd(II) and Ni(II) biosorption using algae residue

Abstract

Brown algae have the capacity to accumulate metal ions, thanks mainly to the alginate present in the cell wall containing functional groups (hydroxyl, carboxyl, amines, etc.) [2]. During the extraction of bio-stimulants from algal biomass a residue is produced; the algae residue is currently poorly valorized. In this study, the residue issued from the treatment of brown algae Laminaria digitata was used for the biosorption of La3+, Cd2+ and Ni2+ from aqueous solution (single vs. binary metal solutions).