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Coupling Ion Exchange and Biosorption for Copper(II) Removal From Wastewaters / Anna Gorka in Industrial & engineering chemistry research, Vol. 50 N° 6 (Mars 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3494–3502 Titre : Coupling Ion Exchange and Biosorption for Copper(II) Removal From Wastewaters Type de document : texte imprimé Auteurs : Anna Gorka, Auteur ; Justyna Zamorska, Auteur ; Dorota Antos, Auteur Année de publication : 2011 Article en page(s) : pp. 3494–3502 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ion  exchange  Removal  wastewaters Résumé : A coupled process of ion exchange and biosorption for recovery of copper(II) from wastewater has been proposed. In this process a cation exchanger has been used as a carrier for the biofilm formation. Two different types of microorganisms capable for copper biosorption have been selected for immobilization, i.e, effective microorganisms and activated sludge microorganisms. As a regenerating agent solutions of sodium bicarbonate with aqueous ammonia as an additive have been used, which allowed operating the column under mild pH conditions. The activity of biofilm was preserved after the cyclic process of ion exchange and regeneration. The effect of biofilm on the mass transfer kinetics and the ion exchange equilibrium was quantified by comparing the efficiency of ion exchange on the fresh bed and that covered by biofilm. The linear driving force model was used for simulations of the process dynamics. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101019s [article] Coupling Ion Exchange and Biosorption for Copper(II) Removal From Wastewaters [texte imprimé] / Anna Gorka, Auteur ; Justyna Zamorska, Auteur ; Dorota Antos, Auteur . - 2011 . - pp. 3494–3502. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3494–3502 Mots-clés : Ion  exchange  Removal  wastewaters Résumé : A coupled process of ion exchange and biosorption for recovery of copper(II) from wastewater has been proposed. In this process a cation exchanger has been used as a carrier for the biofilm formation. Two different types of microorganisms capable for copper biosorption have been selected for immobilization, i.e, effective microorganisms and activated sludge microorganisms. As a regenerating agent solutions of sodium bicarbonate with aqueous ammonia as an additive have been used, which allowed operating the column under mild pH conditions. The activity of biofilm was preserved after the cyclic process of ion exchange and regeneration. The effect of biofilm on the mass transfer kinetics and the ion exchange equilibrium was quantified by comparing the efficiency of ion exchange on the fresh bed and that covered by biofilm. The linear driving force model was used for simulations of the process dynamics. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101019s