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Détail de l'auteur
Auteur Javier Enrique Basurco Cayllahua
Documents disponibles écrits par cet auteur
Affiner la rechercheEvaluation of equilibrium, kinetic and thermodynamic parameters for biosorption of nickel(II) ions onto bacteria strain, Rhodococcus opacus / Javier Enrique Basurco Cayllahua in Minerals engineering, Vol. 22 N° 15 (Décembre 2009)
[article]
in Minerals engineering > Vol. 22 N° 15 (Décembre 2009) . - pp. 1318–1325
Titre : Evaluation of equilibrium, kinetic and thermodynamic parameters for biosorption of nickel(II) ions onto bacteria strain, Rhodococcus opacus Type de document : texte imprimé Auteurs : Javier Enrique Basurco Cayllahua, Auteur ; Roberto José De Carvalho, Auteur ; Mauricio Leonardo Torem, Auteur Année de publication : 2010 Article en page(s) : pp. 1318–1325 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Biotechnology Environmental Nickel(II) Bacteria (Rhodococcus opacus) Résumé : The present study explores the ability of Rhodococcus opacus bacteria strain for the removal of nickel(II) under different experimental conditions. The effects of relevant parameters such as solution pH, biomass loading, ionic strength, and temperature on nickel(II) biosorption capacity were evaluated. Although the tests were carried out using synthetic solutions, the results are representative of typical waste effluents from chemical, dyestuffs, battery manufacture, porcelain enameling, metallurgical industries and electroplating circuits. The sorption data followed the Langmuir, Freundlich, Temkin, Dubinin–Radushkevich, and Sips isotherms. The maximum sorption capacity was found to be 7.63 mg g−1 at pH 5. Thermodynamic parameters have also been evaluated and the results show that the sorption process was spontaneous and endothermic in nature. The dynamics of the sorption process were studied and the values of rate constants for different kinetic models were calculated. The activation energy of biosorption (Ea) was determined as 12.56 kJ mol−1 using the Arrhenius equation. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509001915 [article] Evaluation of equilibrium, kinetic and thermodynamic parameters for biosorption of nickel(II) ions onto bacteria strain, Rhodococcus opacus [texte imprimé] / Javier Enrique Basurco Cayllahua, Auteur ; Roberto José De Carvalho, Auteur ; Mauricio Leonardo Torem, Auteur . - 2010 . - pp. 1318–1325.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 15 (Décembre 2009) . - pp. 1318–1325
Mots-clés : Biotechnology Environmental Nickel(II) Bacteria (Rhodococcus opacus) Résumé : The present study explores the ability of Rhodococcus opacus bacteria strain for the removal of nickel(II) under different experimental conditions. The effects of relevant parameters such as solution pH, biomass loading, ionic strength, and temperature on nickel(II) biosorption capacity were evaluated. Although the tests were carried out using synthetic solutions, the results are representative of typical waste effluents from chemical, dyestuffs, battery manufacture, porcelain enameling, metallurgical industries and electroplating circuits. The sorption data followed the Langmuir, Freundlich, Temkin, Dubinin–Radushkevich, and Sips isotherms. The maximum sorption capacity was found to be 7.63 mg g−1 at pH 5. Thermodynamic parameters have also been evaluated and the results show that the sorption process was spontaneous and endothermic in nature. The dynamics of the sorption process were studied and the values of rate constants for different kinetic models were calculated. The activation energy of biosorption (Ea) was determined as 12.56 kJ mol−1 using the Arrhenius equation. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509001915