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Biosorptive uptake of Cr(VI) from aqueous solutions by Parthenium hysterophorous weed / V. Venugopal in Chemical engineering journal, Vol. 174 N° 1 (Octobre 2011) 

Public ISBD [article]  in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.151-158 Titre : Biosorptive uptake of Cr(VI) from aqueous solutions by Parthenium hysterophorous weed : Equilibrium, kinetics and thermodynamic studies Type de document : texte imprimé Auteurs : V. Venugopal, Auteur ; Kaustubha Mohanty, Auteur Année de publication : 2012 Article en page(s) : pp.151-158 Note générale : Génie chimique Langues : Anglais (eng) Mots-clés : Adsorption  Cr(VI)  Kinetics  Thermodynamics  Wastewater  treatment  Waste  biomass Résumé : In the present work the potential of Parthenium (P. hysterophorus L.) weed to remove Cr(VI) ions from aqueous solution was reported. FTIR was used to study the functional groups present on the surface of the biosorbent and it was found that carboxyl, amine and alkane groups were the leading Cr binding groups. Effect of various parameters such as contact time, temperature, pH, agitation speed, biosorbent dose and initial Cr(VI) concentration on the biosorption was investigated by batch process. The equilibrium data was well described by both Langmuir and Freundlich isotherms. The biosorption capacity of Parthenium weed for Cr(VI) was found. Highlights: A new biosorbent was developed from waste weed of Parthenium. Biosorbent developed was low-cost and renewable in nature. It was used successfully for removal of Cr(VI) ions from aqueous solutions. Maximum adsorption was found to ne 24.5mg/g at optimized conditions. The developed biosorbent has the potential of removing Cr(VI) in an environmentally friendly process. ISSN : 1385-8947 En ligne : http://scienceindex.com/stories/1823781/Biosorptive_uptake_of_CrVI_from_aqueous_ [...] [article] Biosorptive uptake of Cr(VI) from aqueous solutions by Parthenium hysterophorous weed : Equilibrium, kinetics and thermodynamic studies [texte imprimé] / V. Venugopal, Auteur ; Kaustubha Mohanty, Auteur . - 2012 . - pp.151-158. Génie chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.151-158 Mots-clés : Adsorption  Cr(VI)  Kinetics  Thermodynamics  Wastewater  treatment  Waste  biomass Résumé : In the present work the potential of Parthenium (P. hysterophorus L.) weed to remove Cr(VI) ions from aqueous solution was reported. FTIR was used to study the functional groups present on the surface of the biosorbent and it was found that carboxyl, amine and alkane groups were the leading Cr binding groups. Effect of various parameters such as contact time, temperature, pH, agitation speed, biosorbent dose and initial Cr(VI) concentration on the biosorption was investigated by batch process. The equilibrium data was well described by both Langmuir and Freundlich isotherms. The biosorption capacity of Parthenium weed for Cr(VI) was found. Highlights: A new biosorbent was developed from waste weed of Parthenium. Biosorbent developed was low-cost and renewable in nature. It was used successfully for removal of Cr(VI) ions from aqueous solutions. Maximum adsorption was found to ne 24.5mg/g at optimized conditions. The developed biosorbent has the potential of removing Cr(VI) in an environmentally friendly process. ISSN : 1385-8947 En ligne : http://scienceindex.com/stories/1823781/Biosorptive_uptake_of_CrVI_from_aqueous_ [...]