Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors

Detalhes bibliográficos
Autor(a) principal: Pereira, Raquel
Data de Publicação: 2016
Outros Autores: Salvador, A. F., Dias, P., Pereira, M. F. R., Alves, M. M., Pereira, Luciana
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/42039
Resumo: Supplementary data related to this article can be found at http:// dx.doi.org/10.1016/j.watres.2016.06.004.
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spelling Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactorsAnaerobic bioreductionCarbon materialsMicrobial diversityRedox mediatorsUASB bioreactorScience & TechnologySupplementary data related to this article can be found at http:// dx.doi.org/10.1016/j.watres.2016.06.004.The catalytic effect of commercial microporous activated carbon (AC) and macroporous carbon nanotubes (CNT) is investigated in reductive bioreactions in continuous high rate anaerobic reactors, using the azo dye Acid Orange 10 (AO10) as model compound as electron acceptor and a mixture of VFA as electron donor. Size and concentration of carbon materials (CM) and hydraulic retention time (HRT) are assessed. CM increased the biological reduction rate of AO10, resulting in significantly higher colour removal, as compared to the control reactors. The highest efficiency, 98%, was achieved with a CNT diameter (d) lower than 0.25 mm, at a CNT concentration of 0.12 g per g of volatile solids (VS), a HRT of 10 h and resulted in a chemical oxygen demand (COD) removal of 85%. Reducing the HRT to 5 h, colour and COD removal in CM-mediated bioreactors were above 90% and 80%, respectively. In the control reactor, thought similar COD removal was achieved, AO10 decolourisation was just approximately 20%, demonstrating the ability of CM to significantly accelerate the reduction reactions in continuous bioreactors. AO10 reduction to the correspondent aromatic amines was proved by high performance liquid chromatography (HPLC). Colour decrease in the reactor treating a real effluent with CNT was the double comparatively to the reactor operated without CNT. The presence of AC in the reactor did not affect the microbial diversity, as compared to the control reactor, evidencing that the efficient reduction of AO10 was mainly due to AC rather than attributed to changes in the composition of the microbial communities.This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01- 0145-FEDER-006684). Raquel Pereira had a fellowship (SFRH/BD/ 72388/2010) and Luciana Pereira has the fellowship (SFRH/BPD/ 110235/2015) from FCT. The authors thank the FCT exploratory EXPL/AAG-TEC/0898/2013 project.ElsevierUniversidade do MinhoPereira, RaquelSalvador, A. F.Dias, P.Pereira, M. F. R.Alves, M. M.Pereira, Luciana20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/42039engPereira, Raquel; Salvador, A. F.; Dias, P.; Pereira, M. F. R.; Alves, M. Madalena; Pereira, Luciana, Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors. Water Research, 101, 441-447, 20160043-13540043-135410.1016/j.watres.2016.06.00427295618http://www.journals.elsevier.com/water-research/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:RCAAP2023-07-21T12:27:26Zoai:repositorium.sdum.uminho.pt:1822/42039Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:01.412030Repositório 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 Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
title Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
spellingShingle Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
Pereira, Raquel
Anaerobic bioreduction
Carbon materials
Microbial diversity
Redox mediators
UASB bioreactor
Science & Technology
title_short Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
title_full Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
title_fullStr Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
title_full_unstemmed Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
title_sort Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors
author Pereira, Raquel
author_facet Pereira, Raquel
Salvador, A. F.
Dias, P.
Pereira, M. F. R.
Alves, M. M.
Pereira, Luciana
author_role author
author2 Salvador, A. F.
Dias, P.
Pereira, M. F. R.
Alves, M. M.
Pereira, Luciana
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pereira, Raquel
Salvador, A. F.
Dias, P.
Pereira, M. F. R.
Alves, M. M.
Pereira, Luciana
dc.subject.por.fl_str_mv Anaerobic bioreduction
Carbon materials
Microbial diversity
Redox mediators
UASB bioreactor
Science & Technology
topic Anaerobic bioreduction
Carbon materials
Microbial diversity
Redox mediators
UASB bioreactor
Science & Technology
description Supplementary data related to this article can be found at http:// dx.doi.org/10.1016/j.watres.2016.06.004.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
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/1822/42039
url http://hdl.handle.net/1822/42039
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pereira, Raquel; Salvador, A. F.; Dias, P.; Pereira, M. F. R.; Alves, M. Madalena; Pereira, Luciana, Perspectives on carbon materials as powerful catalysts in continuous anaerobic bioreactors. Water Research, 101, 441-447, 2016
0043-1354
0043-1354
10.1016/j.watres.2016.06.004
27295618
http://www.journals.elsevier.com/water-research/
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
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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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