Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies

The biosorption of lead by the brown alga Sargassum filipendula was studied. pH 4.0 was the optimum value for the biosorption of lead. Isotherms indicated that for solutions containing 0.03 ± 0.001 up to 3.27 ± 0.04 mmol/L of lead, 2.0g/L was the optimum biomass concentration. The Langmuir model was...

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Autores principales:	Mesquita Vieira,Denise, Augusto da Costa,Antonio Carlos, Assumpção Henriques,Cristiane, Luiz Cardoso,Vicelma, Pessôa de França,Francisca
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2007
Materias:	biosorption, biosorption equilibrium continuous system lead Sargassum filipendula
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000300004
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spelling	oai:scielo:S0717-345820070003000042007-11-05Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studiesMesquita Vieira,DeniseAugusto da Costa,Antonio CarlosAssumpção Henriques,CristianeLuiz Cardoso,VicelmaPessôa de França,Francisca biosorption, biosorption equilibrium continuous system lead Sargassum filipendula The biosorption of lead by the brown alga Sargassum filipendula was studied. pH 4.0 was the optimum value for the biosorption of lead. Isotherms indicated that for solutions containing 0.03 ± 0.001 up to 3.27 ± 0.04 mmol/L of lead, 2.0g/L was the optimum biomass concentration. The Langmuir model was fitted to represent the experimental data, and the kinetics of biosorption presented equilibrium in 30 min. The continuous system operated for 56 hrs presenting a 100% binding of ionic lead, which corresponds to an accumulation of 168 g lead, equivalent to a load of 1.7 mmol ionic lead/g Sargassum filipendula. The results that were obtained in a continuous system showed a gradual saturation of the biomass in the reactorsinfo:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.10 n.3 20072007-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000300004en10.4067/S0717-34582007000300004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biosorption, biosorption equilibrium continuous system lead Sargassum filipendula
spellingShingle	biosorption, biosorption equilibrium continuous system lead Sargassum filipendula Mesquita Vieira,Denise Augusto da Costa,Antonio Carlos Assumpção Henriques,Cristiane Luiz Cardoso,Vicelma Pessôa de França,Francisca Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
description	The biosorption of lead by the brown alga Sargassum filipendula was studied. pH 4.0 was the optimum value for the biosorption of lead. Isotherms indicated that for solutions containing 0.03 ± 0.001 up to 3.27 ± 0.04 mmol/L of lead, 2.0g/L was the optimum biomass concentration. The Langmuir model was fitted to represent the experimental data, and the kinetics of biosorption presented equilibrium in 30 min. The continuous system operated for 56 hrs presenting a 100% binding of ionic lead, which corresponds to an accumulation of 168 g lead, equivalent to a load of 1.7 mmol ionic lead/g Sargassum filipendula. The results that were obtained in a continuous system showed a gradual saturation of the biomass in the reactors
author	Mesquita Vieira,Denise Augusto da Costa,Antonio Carlos Assumpção Henriques,Cristiane Luiz Cardoso,Vicelma Pessôa de França,Francisca
author_facet	Mesquita Vieira,Denise Augusto da Costa,Antonio Carlos Assumpção Henriques,Cristiane Luiz Cardoso,Vicelma Pessôa de França,Francisca
author_sort	Mesquita Vieira,Denise
title	Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
title_short	Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
title_full	Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
title_fullStr	Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
title_full_unstemmed	Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies
title_sort	biosorption of lead by the brown seaweed sargassum filipendula - batch and continuous pilot studies
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000300004
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Biosorption of lead by the brown seaweed Sargassum filipendula - batch and continuous pilot studies

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