Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor

Detalhes bibliográficos
Autor(a) principal: Nogueira, R.
Data de Publicação: 2009
Outros Autores: Alves, Cláudia, Matos, Maria F., Brito, A. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/9187
Resumo: The aim of this work was the study of poly-β-hydroxybutyrate (PHB) formation and degradation in a sequencing batch biofilm reactor (SBBR). The SBBR was operated in cycles comprising three individual phases: mixed fill, aeration and draw. A synthetic substrate solution with acetate and ammonium was used. PHB was formed during the aeration phase immediately after acetate depletion, and was subsequently consumed for biomass growth, owing to the high oxygen concentration in the reactor. It was observed a combination of suspended and biofilm growth in the SBBR with predominance of the fixed form of biomass (506 Cmmol and 2102 Cmmol, respectively). Maximum PHB fraction of suspended biomass (0.13 Cmol/Cmol) was considerably higher than that of biofilm (0.01 Cmol/Cmol). This may possibly be explained by a combination of two factors: lower mass transfer limitation of acetate and higher fraction of heterotrophs in suspended biomass compared to the ones of biofilm.
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spelling Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactorPoly-β-hydroxybutyrate (PHB)Sequencing batch biofilm reactor (SBBR)Nitrogen removalPoly-beta-hydroxybutyrate (PHB)Science & TechnologyThe aim of this work was the study of poly-β-hydroxybutyrate (PHB) formation and degradation in a sequencing batch biofilm reactor (SBBR). The SBBR was operated in cycles comprising three individual phases: mixed fill, aeration and draw. A synthetic substrate solution with acetate and ammonium was used. PHB was formed during the aeration phase immediately after acetate depletion, and was subsequently consumed for biomass growth, owing to the high oxygen concentration in the reactor. It was observed a combination of suspended and biofilm growth in the SBBR with predominance of the fixed form of biomass (506 Cmmol and 2102 Cmmol, respectively). Maximum PHB fraction of suspended biomass (0.13 Cmol/Cmol) was considerably higher than that of biofilm (0.01 Cmol/Cmol). This may possibly be explained by a combination of two factors: lower mass transfer limitation of acetate and higher fraction of heterotrophs in suspended biomass compared to the ones of biofilm.Fundo Europeu de Desenvolvimento Regional (FEDER) - POCI 2010 (POCI/AMB/61155/2004)Fundação para a Ciência e a Tecnologia (FCT) - PRAXIS XXI BD/19687/99ElsevierUniversidade do MinhoNogueira, R.Alves, CláudiaMatos, Maria F.Brito, A. G.2009-042009-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/9187eng“Bioresource Technology”. ISSN 0960-8524. 100:7 (2009) 2106–2110.0960-852410.1016/j.biortech.2008.11.01319109011http://www.sciencedirect.cominfo: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:RCAAP2023-07-21T12:47:01Zoai:repositorium.sdum.uminho.pt:1822/9187Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:45:05.323762Repositório 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 Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
title Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
spellingShingle Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
Nogueira, R.
Poly-β-hydroxybutyrate (PHB)
Sequencing batch biofilm reactor (SBBR)
Nitrogen removal
Poly-beta-hydroxybutyrate (PHB)
Science & Technology
title_short Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
title_full Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
title_fullStr Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
title_full_unstemmed Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
title_sort Synthesis and degradation of poly-β-hydroxybutyrate in a sequencing batch biofilm reactor
author Nogueira, R.
author_facet Nogueira, R.
Alves, Cláudia
Matos, Maria F.
Brito, A. G.
author_role author
author2 Alves, Cláudia
Matos, Maria F.
Brito, A. G.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Nogueira, R.
Alves, Cláudia
Matos, Maria F.
Brito, A. G.
dc.subject.por.fl_str_mv Poly-β-hydroxybutyrate (PHB)
Sequencing batch biofilm reactor (SBBR)
Nitrogen removal
Poly-beta-hydroxybutyrate (PHB)
Science & Technology
topic Poly-β-hydroxybutyrate (PHB)
Sequencing batch biofilm reactor (SBBR)
Nitrogen removal
Poly-beta-hydroxybutyrate (PHB)
Science & Technology
description The aim of this work was the study of poly-β-hydroxybutyrate (PHB) formation and degradation in a sequencing batch biofilm reactor (SBBR). The SBBR was operated in cycles comprising three individual phases: mixed fill, aeration and draw. A synthetic substrate solution with acetate and ammonium was used. PHB was formed during the aeration phase immediately after acetate depletion, and was subsequently consumed for biomass growth, owing to the high oxygen concentration in the reactor. It was observed a combination of suspended and biofilm growth in the SBBR with predominance of the fixed form of biomass (506 Cmmol and 2102 Cmmol, respectively). Maximum PHB fraction of suspended biomass (0.13 Cmol/Cmol) was considerably higher than that of biofilm (0.01 Cmol/Cmol). This may possibly be explained by a combination of two factors: lower mass transfer limitation of acetate and higher fraction of heterotrophs in suspended biomass compared to the ones of biofilm.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
2009-04-01T00:00:00Z
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/1822/9187
url http://hdl.handle.net/1822/9187
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “Bioresource Technology”. ISSN 0960-8524. 100:7 (2009) 2106–2110.
0960-8524
10.1016/j.biortech.2008.11.013
19109011
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
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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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