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Use of Cyclic Voltammetry to Evaluate Sorption Properties of Cork Residues Towards Mn(II) in Waters

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Abstract

Cyclic voltammetry is proposed for evaluating the ability of cork wastes to remove Mn(II) ions by sorption from waters to be used for public supply. As the first stage, the concentration of several naturally occurring cations (Ca2+, Mg2+, K+ and Na+) were analyzed in the acid washings that were performed to remove them from the cork. The obtained results were then related to the total concentrations of cations released, as measured by flame atomic absorption spectroscopy of solutions made by dissolving ashed samples. Cyclic voltammetry is proposed to measure the manganese concentration in the uptake solutions because it allows the metal oxidation state to be controlled, and was determined to be suitable for use with standard addition methods. Contact time and particle size effects on Mn(II) sorption were evaluated.

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Authors and Affiliations

  1. Dipartimento di Scienze Chimiche, Università di Cagliari, Cittadella Universitaria, 09042, Monserrato Cagliari, Italy

    Valeria M. Nurchi & Rosalba Pinna

  2. Chemical Engineering Department, Universitat de Girona, Avda Lluís Santaló, 17003, Girona, Spain

    Nuria Fiol & Isabel Villaescusa

Authors
  1. Valeria M. Nurchi
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  2. Rosalba Pinna
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  3. Nuria Fiol
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  4. Isabel Villaescusa
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Correspondence to Isabel Villaescusa.

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Nurchi, V.M., Pinna, R., Fiol, N. et al. Use of Cyclic Voltammetry to Evaluate Sorption Properties of Cork Residues Towards Mn(II) in Waters. J Solution Chem 37, 477–485 (2008). https://doi.org/10.1007/s10953-008-9247-5

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  • DOI: https://doi.org/10.1007/s10953-008-9247-5

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