Equilibrium of Cu(II) and Ni(II) biosorption by marine alga Sargassum filipendula in a dynamic system: Competitiveness and selectivity - IMT Mines Alès Accéder directement au contenu
Article Dans Une Revue Bioresource Technology Année : 2011

Equilibrium of Cu(II) and Ni(II) biosorption by marine alga Sargassum filipendula in a dynamic system: Competitiveness and selectivity

Résumé

The study focuses on the equilibrium of dynamic biosorption in single and binary systems containing Cu(II) and Ni(II) ions using Sargassum filipendula (a marine alga). The experiments were performed in fixed-bed columns with both single-component and bi-component metal solutions (using different molar concentrations). Experimental data were fitted with different equilibrium models such as Langmuir, Langmuir with inhibition, Jain and Snowyink and Langmuir–Freundlich equations. The biosorption of pure metal ions in solution presented adequate capacities both for Cu(II) and Ni(II). In binary solutions the preferential sorption of Cu(II) over Ni(II) was demonstrated by the displacement of Ni(II) (marked overshoot on the breakthrough curves).

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Chimie

Dates et versions

hal-04183202 , version 1 (18-08-2023)

Identifiants

Citer

S.J. Kleinübing, E.A. da Silva, M.G.C. da Silva, Guibal Eric. Equilibrium of Cu(II) and Ni(II) biosorption by marine alga Sargassum filipendula in a dynamic system: Competitiveness and selectivity. Bioresource Technology, 2011, 102 (7), pp.4610-4617. ⟨10.1016/j.biortech.2010.12.049⟩. ⟨hal-04183202⟩
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