Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B

Detalhes bibliográficos
Autor(a) principal: Rosales, E.
Data de Publicação: 2012
Outros Autores: Pazos, M., Sanromán, M. A., 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/1822/16798
Resumo: A hybrid system combining the ion-exchange properties of a NaY zeolite and the characteristics of the bacterium Arthrobacter viscosus was investigated to treat polluted effluents with dye and toxic metals. In this study, the dye and the metal ion employed were a thiazine dye, Azure B, and chromium (VI), respectively. Initially, the removal of dye by the zeolite was tested. The analysis of dye equilibrium isotherms data was done using Langmuir, Freundlich, Sips and Redlich–Peterson models. Redlich–Peterson model gave the better fitting to data. In the dye adsorption studies, pseudo-second order kinetics showed the more reliable results. Operating at the optimised conditions in the treatment of single pollutants, a mixture of dye and metal solutions was treated reaching a removal higher than 50% for chromium (VI) and higher than 99% for dye, in 8 days.
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spelling Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure BAdsorption isothermsChromiumDye adsorptionKinetic studiesNaY zeoliteScience & TechnologyA hybrid system combining the ion-exchange properties of a NaY zeolite and the characteristics of the bacterium Arthrobacter viscosus was investigated to treat polluted effluents with dye and toxic metals. In this study, the dye and the metal ion employed were a thiazine dye, Azure B, and chromium (VI), respectively. Initially, the removal of dye by the zeolite was tested. The analysis of dye equilibrium isotherms data was done using Langmuir, Freundlich, Sips and Redlich–Peterson models. Redlich–Peterson model gave the better fitting to data. In the dye adsorption studies, pseudo-second order kinetics showed the more reliable results. Operating at the optimised conditions in the treatment of single pollutants, a mixture of dye and metal solutions was treated reaching a removal higher than 50% for chromium (VI) and higher than 99% for dye, in 8 days.This work was supported by Fundacao para a Ciencia e Tecnologia (FCT-Portugal) and Xunta de Galicia under programme 08MDS034 314PR. The authors are grateful to University of Vigo for financial support of the research of Emilio Rosales under a mobility grant.ElsevierUniversidade do MinhoRosales, E.Pazos, M.Sanromán, M. A.Tavares, M. T.20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/16798eng0011-916410.1016/j.desal.2011.08.049http://www.sciencedirect.com/info: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:RCAAP2023-07-21T12:27:46Zoai:repositorium.sdum.uminho.pt:1822/16798Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:29.658837Repositório 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 Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
title Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
spellingShingle Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
Rosales, E.
Adsorption isotherms
Chromium
Dye adsorption
Kinetic studies
NaY zeolite
Science & Technology
title_short Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
title_full Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
title_fullStr Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
title_full_unstemmed Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
title_sort Application of zeolite-Arthrobacter viscosus system for the removal of heavy metal and dye : chromium and azure B
author Rosales, E.
author_facet Rosales, E.
Pazos, M.
Sanromán, M. A.
Tavares, M. T.
author_role author
author2 Pazos, M.
Sanromán, M. A.
Tavares, M. T.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rosales, E.
Pazos, M.
Sanromán, M. A.
Tavares, M. T.
dc.subject.por.fl_str_mv Adsorption isotherms
Chromium
Dye adsorption
Kinetic studies
NaY zeolite
Science & Technology
topic Adsorption isotherms
Chromium
Dye adsorption
Kinetic studies
NaY zeolite
Science & Technology
description A hybrid system combining the ion-exchange properties of a NaY zeolite and the characteristics of the bacterium Arthrobacter viscosus was investigated to treat polluted effluents with dye and toxic metals. In this study, the dye and the metal ion employed were a thiazine dye, Azure B, and chromium (VI), respectively. Initially, the removal of dye by the zeolite was tested. The analysis of dye equilibrium isotherms data was done using Langmuir, Freundlich, Sips and Redlich–Peterson models. Redlich–Peterson model gave the better fitting to data. In the dye adsorption studies, pseudo-second order kinetics showed the more reliable results. Operating at the optimised conditions in the treatment of single pollutants, a mixture of dye and metal solutions was treated reaching a removal higher than 50% for chromium (VI) and higher than 99% for dye, in 8 days.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
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/1822/16798
url http://hdl.handle.net/1822/16798
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0011-9164
10.1016/j.desal.2011.08.049
http://www.sciencedirect.com/
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
publisher.none.fl_str_mv Elsevier
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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