Complexation parameters of heavy metals by olive mill wastewater determined by a cation exchange resin |
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Authors: | M. Bejarano L. Madrid |
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Affiliation: | Instituto de Recursos Naturales y Agrobiología , CSIC , Apartado 1052, Sevilla, 41080, Spain |
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Abstract: | Abstract Complexing parameters in aqueous systems containing heavy metals and wastewater from olive‐oil mill (WOM) have been estimated using a cation exchange resin method. The parameters estimated were the maximum complexing ability (MCA), the stability constant (Kc) and a parameter indicating the stoichiometrical characteristics of the complex (a). MCA of WOM for Cu, Zn, Pb and Mn was 0.470, 0.314, 0.068 and 0.300 mmol (g WOM)‐1 respectively, and was related with the ionic radii of the various metal ions. The log Kc values followed the sequence: Cu>Pb>Zn>Mn in agreement with their respective electronegativities. In the case of Cu and Pb, data obtained here was compared with that determined in other work. |
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Keywords: | metal complexation olive‐oil mill wastewater |
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