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Removal of carmine indigo dye with moringa oleifera seed extract / J. Beltrán-Heredia in Industrial & engineering chemistry research, Vol. 48 N° 14 (Juillet 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 14 (Juillet 2009) . - pp. 6512–6520 Titre : Removal of carmine indigo dye with moringa oleifera seed extract Type de document : texte imprimé Auteurs : J. Beltrán-Heredia, Auteur ; J. Sánchez-Martín, Auteur ; A. Delgado-Regalado, Auteur Année de publication : 2009 Article en page(s) : pp. 6512–6520 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Moringa  oleifera  Carmine  Indigo Résumé : Moringa oleifera has been tested as an active agent in removing various types of anionic dyes. Specially, removal of an indigoid dye, Carmine Indigo, has been tested. The fast kinetics of coagulant action and the high potential of this coagulant agent to treat wastewater from dyestuff has been revealed. Moringa oleifera is fully working in coagulation and flocculation process, and it achieves an average level of removal up to 80%. The pH does not affect the coagulant process, and temperature has a negative influence. By increasing initial dye concentration, lower dye percentage removal is achieved and higher q is presented. Coagulation and flocculation processes can be estimated by the Langmuir and Freundlich models, but the first one gives a better explanation of the coagulation and adsorption behavior (r2 equal to 0.97). Carmine Indigo removal presents an optimum q capacity at 343 mg·L−1 and 11.2 °C. Pilot plant installation gives a similar efficiency for dye removal. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004833 [article] Removal of carmine indigo dye with moringa oleifera seed extract [texte imprimé] / J. Beltrán-Heredia, Auteur ; J. Sánchez-Martín, Auteur ; A. Delgado-Regalado, Auteur . - 2009 . - pp. 6512–6520. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 14 (Juillet 2009) . - pp. 6512–6520 Mots-clés : Moringa  oleifera  Carmine  Indigo Résumé : Moringa oleifera has been tested as an active agent in removing various types of anionic dyes. Specially, removal of an indigoid dye, Carmine Indigo, has been tested. The fast kinetics of coagulant action and the high potential of this coagulant agent to treat wastewater from dyestuff has been revealed. Moringa oleifera is fully working in coagulation and flocculation process, and it achieves an average level of removal up to 80%. The pH does not affect the coagulant process, and temperature has a negative influence. By increasing initial dye concentration, lower dye percentage removal is achieved and higher q is presented. Coagulation and flocculation processes can be estimated by the Langmuir and Freundlich models, but the first one gives a better explanation of the coagulation and adsorption behavior (r2 equal to 0.97). Carmine Indigo removal presents an optimum q capacity at 343 mg·L−1 and 11.2 °C. Pilot plant installation gives a similar efficiency for dye removal. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004833