Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/8253 |
Resumo: | The aim of this work is to evaluate the applicability of a biofilm to the removal of chromium in solution, at a pilot scale. The effect of the initial concentration of metal on the biosorption behavior of an Arthrobacter viscosus biofilm supported on granular activated carbon, in batch and column essays was also analyzed. Six isotherm equations have been tested in the present study. The best fit was obtained with the Freundlich model. It was observed that as the initial chromium concentration increases, the uptake increases too, but the removal percentage decreases, with values between 95.20% (C0 = 5 mg/l) and 38.28% (C0 = 1000 mg/l). The batch adsorption studies were used to develop a pilot bioreactor able to remove chromium from aqueous solutions. Data obtained in a pilot-scale reactor showed an average removal percentage of 99.9%, during the first 30 days, for the initial concentration of 10 mg/l and an average removal percentage of 72%, for the same period and for the initial concentration of 100 mg/l. Uptake values of 11.35 mg/g and 14.55 mg/g were obtained, respectively, for the initial concentration of 10 and 100 mg/l. The results obtained are very promising and encourage the utilization of this biofilm in environmental applications. |
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Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GACBiofilmBioreactorChromiumIsothermsModellingScience & TechnologyThe aim of this work is to evaluate the applicability of a biofilm to the removal of chromium in solution, at a pilot scale. The effect of the initial concentration of metal on the biosorption behavior of an Arthrobacter viscosus biofilm supported on granular activated carbon, in batch and column essays was also analyzed. Six isotherm equations have been tested in the present study. The best fit was obtained with the Freundlich model. It was observed that as the initial chromium concentration increases, the uptake increases too, but the removal percentage decreases, with values between 95.20% (C0 = 5 mg/l) and 38.28% (C0 = 1000 mg/l). The batch adsorption studies were used to develop a pilot bioreactor able to remove chromium from aqueous solutions. Data obtained in a pilot-scale reactor showed an average removal percentage of 99.9%, during the first 30 days, for the initial concentration of 10 mg/l and an average removal percentage of 72%, for the same period and for the initial concentration of 100 mg/l. Uptake values of 11.35 mg/g and 14.55 mg/g were obtained, respectively, for the initial concentration of 10 and 100 mg/l. The results obtained are very promising and encourage the utilization of this biofilm in environmental applications.FEDERFundação para a Ciência e a Tecnologia (FCT)Elsevier Ltd.Universidade do MinhoQuintelas, C.Fonseca, BrunaSilva, Bruna Andreia Nogueira AirosaFigueiredo, HugoTavares, M. T.20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/8253eng"Bioresource Technology". ISSN 0960-8524. 100:1 (2009) 220-226.0960-852410.1016/j.biortech.2008.05.01018565747info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:28:11Zoai:repositorium.sdum.uminho.pt:1822/8253Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:56.997881Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
title |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
spellingShingle |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC Quintelas, C. Biofilm Bioreactor Chromium Isotherms Modelling Science & Technology |
title_short |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
title_full |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
title_fullStr |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
title_full_unstemmed |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
title_sort |
Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC |
author |
Quintelas, C. |
author_facet |
Quintelas, C. Fonseca, Bruna Silva, Bruna Andreia Nogueira Airosa Figueiredo, Hugo Tavares, M. T. |
author_role |
author |
author2 |
Fonseca, Bruna Silva, Bruna Andreia Nogueira Airosa Figueiredo, Hugo Tavares, M. T. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Quintelas, C. Fonseca, Bruna Silva, Bruna Andreia Nogueira Airosa Figueiredo, Hugo Tavares, M. T. |
dc.subject.por.fl_str_mv |
Biofilm Bioreactor Chromium Isotherms Modelling Science & Technology |
topic |
Biofilm Bioreactor Chromium Isotherms Modelling Science & Technology |
description |
The aim of this work is to evaluate the applicability of a biofilm to the removal of chromium in solution, at a pilot scale. The effect of the initial concentration of metal on the biosorption behavior of an Arthrobacter viscosus biofilm supported on granular activated carbon, in batch and column essays was also analyzed. Six isotherm equations have been tested in the present study. The best fit was obtained with the Freundlich model. It was observed that as the initial chromium concentration increases, the uptake increases too, but the removal percentage decreases, with values between 95.20% (C0 = 5 mg/l) and 38.28% (C0 = 1000 mg/l). The batch adsorption studies were used to develop a pilot bioreactor able to remove chromium from aqueous solutions. Data obtained in a pilot-scale reactor showed an average removal percentage of 99.9%, during the first 30 days, for the initial concentration of 10 mg/l and an average removal percentage of 72%, for the same period and for the initial concentration of 100 mg/l. Uptake values of 11.35 mg/g and 14.55 mg/g were obtained, respectively, for the initial concentration of 10 and 100 mg/l. The results obtained are very promising and encourage the utilization of this biofilm in environmental applications. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/8253 |
url |
http://hdl.handle.net/1822/8253 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Bioresource Technology". ISSN 0960-8524. 100:1 (2009) 220-226. 0960-8524 10.1016/j.biortech.2008.05.010 18565747 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Ltd. |
publisher.none.fl_str_mv |
Elsevier Ltd. |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132702056644608 |