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Copper, nickel and zinc removal by peanut hulls: batch and column studies in mo...
Oliveira, F. D.; Soares, A. D.; Freitas, Olga M.; Figueiredo, Sónia AdrianaThe main goal of this research study was the removal of Cu(II), Ni(II) and Zn(II) from aqueous solutions using peanut hulls. This work was mainly focused on the following aspects: chemical characterization of the biosorbent, kinetic studies, study of the pH influence in mono-component systems, equilibrium isotherms and column studies, both in mono and tri-component systems, and with a real industrial effluent f...
Removal of Cd(II), Zn(II) and Pb(II) from aqueous solutions by brown marine mac...
Freitas, Olga M.; Martins, Ramiro J. E; Delerue-Matos, Cristina; Boaventura, RuiSpecific marine macro algae species abundant at the Portuguese coast (Laminaria hyperborea, Bifurcaria bifurcata, Sargassum muticum and Fucus spiralis) were shown to be effective for removing toxic metals (Cd(II), Zn(II) and Pb(II)) from aqueous solutions. The initial metal concentrations in solution were about 75–100 mg L−1. The observed biosorption capacities for cadmium, zinc and lead ions were in the ranges...
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