Treatment of chromium(VI) solutions in a pilot-scale bioreactor through a biofilm of arthrobacter viscosus supported on GAC

Detalhes bibliográficos
Autor(a) principal: Quintelas, C.
Data de Publicação: 2009
Outros Autores: Fonseca, Bruna, Silva, Bruna Andreia Nogueira Airosa, Figueiredo, Hugo, Tavares, M. T.
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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spelling 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
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