Biosorption of chromium(III) by Sargassum sp. biomass

Chromium is present in different types of industrial effluents, being responsible for environmental pollution. Traditionally, the chromium removal is made by chemical precipitation. However, this method is not completely feasible to reduce the chromium concentration to levels as low as required by e...

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Autores principales:	Sala Cossich,Eneida, Granhen Tavares,Célia Regina, Kakuta Ravagnani,Teresa Massako
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2002
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582002000200008
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spelling	oai:scielo:S0717-345820020002000082003-08-19Biosorption of chromium(III) by Sargassum sp. biomassSala Cossich,EneidaGranhen Tavares,Célia ReginaKakuta Ravagnani,Teresa Massako Chromium is present in different types of industrial effluents, being responsible for environmental pollution. Traditionally, the chromium removal is made by chemical precipitation. However, this method is not completely feasible to reduce the chromium concentration to levels as low as required by environmental legislation. Biosorption is a process in which solids of natural origin are employed for binding heavy metals. It is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this work the chromium biosorption process by Sargassum sp. seaweed biomass is studied. Sargassum sp. seaweed, which is abundant in the Brazilian coast, has been utilized with and without milling. The work considered the determination of chromium-biomass equilibrium data in batch system. These studies were carried out in order to determine some operational parameters of chromium sorption such as the time required for the metal-biosorbent equilibrium, the effects of biomass size, pH and temperature. The results showed that pH has an important effect on chromium biosorption capacity. The biosorbent size did not affect chromium biosorption rate and capacity.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.5 n.2 20022002-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582002000200008en
institution	Scielo Chile
collection	Scielo Chile
language	English
description	Chromium is present in different types of industrial effluents, being responsible for environmental pollution. Traditionally, the chromium removal is made by chemical precipitation. However, this method is not completely feasible to reduce the chromium concentration to levels as low as required by environmental legislation. Biosorption is a process in which solids of natural origin are employed for binding heavy metals. It is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this work the chromium biosorption process by Sargassum sp. seaweed biomass is studied. Sargassum sp. seaweed, which is abundant in the Brazilian coast, has been utilized with and without milling. The work considered the determination of chromium-biomass equilibrium data in batch system. These studies were carried out in order to determine some operational parameters of chromium sorption such as the time required for the metal-biosorbent equilibrium, the effects of biomass size, pH and temperature. The results showed that pH has an important effect on chromium biosorption capacity. The biosorbent size did not affect chromium biosorption rate and capacity.
author	Sala Cossich,Eneida Granhen Tavares,Célia Regina Kakuta Ravagnani,Teresa Massako
spellingShingle	Sala Cossich,Eneida Granhen Tavares,Célia Regina Kakuta Ravagnani,Teresa Massako Biosorption of chromium(III) by Sargassum sp. biomass
author_facet	Sala Cossich,Eneida Granhen Tavares,Célia Regina Kakuta Ravagnani,Teresa Massako
author_sort	Sala Cossich,Eneida
title	Biosorption of chromium(III) by Sargassum sp. biomass
title_short	Biosorption of chromium(III) by Sargassum sp. biomass
title_full	Biosorption of chromium(III) by Sargassum sp. biomass
title_fullStr	Biosorption of chromium(III) by Sargassum sp. biomass
title_full_unstemmed	Biosorption of chromium(III) by Sargassum sp. biomass
title_sort	biosorption of chromium(iii) by sargassum sp. biomass
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2002
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582002000200008
work_keys_str_mv	AT salacossicheneida biosorptionofchromiumiiibysargassumspbiomass AT granhentavaresceliaregina biosorptionofchromiumiiibysargassumspbiomass AT kakutaravagnaniteresamassako biosorptionofchromiumiiibysargassumspbiomass
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Biosorption of chromium(III) by Sargassum sp. biomass

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