Troubleshooting of filamentous bulking using biofilm reactors

Detalhes bibliográficos
Autor(a) principal: Matos, M.
Data de Publicação: 2010
Outros Autores: Pereira, M. A., Nicolau, Ana, Rodrigues, A. L., Brito, A. G., Nogueira, R.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/33211
Resumo: The present work aims to evaluate filamentous bulking control in systems combining suspended biomass with biofilm growth. For this study, four sequencing batch reactors (SBR)fed with an easy biodegradable substrate (acetate) were operated without (SBR1) and with support for biofilm growth [5 % (SBR2), 10 % (SBR3) and 20 % (SBR4) of the reactor volume]. The results demonstrated an overabundance of a filamentous fungi-like microorganism in the SBR operating just with suspended biomass. The incorporation of an optimized amount of support for biofilm growth (10 % and 20 %) seemed to suppress the overgrowth of this filamentous microorganism probably due to the combined effect of a decreased biomass loading rate and the physical cut or breakdown of filaments induced by particle-to-particle collisions. Besides the observed differences in terms of the filamentous fungi-like microorganism, the incorporation of a support material for biofilm growth was also found to induce increasing differences in the bacterial community structure as the concentration of support increased in the SBR.
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spelling Troubleshooting of filamentous bulking using biofilm reactorsBiofilm reactorsFilamentous bulkingFilamentous fungi-like microorganismMicrobial community compositionSupport concentrationThe present work aims to evaluate filamentous bulking control in systems combining suspended biomass with biofilm growth. For this study, four sequencing batch reactors (SBR)fed with an easy biodegradable substrate (acetate) were operated without (SBR1) and with support for biofilm growth [5 % (SBR2), 10 % (SBR3) and 20 % (SBR4) of the reactor volume]. The results demonstrated an overabundance of a filamentous fungi-like microorganism in the SBR operating just with suspended biomass. The incorporation of an optimized amount of support for biofilm growth (10 % and 20 %) seemed to suppress the overgrowth of this filamentous microorganism probably due to the combined effect of a decreased biomass loading rate and the physical cut or breakdown of filaments induced by particle-to-particle collisions. Besides the observed differences in terms of the filamentous fungi-like microorganism, the incorporation of a support material for biofilm growth was also found to induce increasing differences in the bacterial community structure as the concentration of support increased in the SBR.Universidade do MinhoMatos, M.Pereira, M. A.Nicolau, AnaRodrigues, A. L.Brito, A. G.Nogueira, R.20102010-01-01T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/33211engMatos, M.; Pereira, M. A.; Nicolau, Ana; Rodrigues, A. L.; Brito, A. G.; Nogueira, R., Troubleshooting of filamentous bulking using biofilm reactors. WEF/IWA Biofilm Reactor Technology Conference 2010. Portland, Oregon, USA, August 15 - 18, 162-175, 2010.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:RCAAP2024-05-11T07:11:44Zoai:repositorium.sdum.uminho.pt:1822/33211Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T07:11:44Repositório 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 Troubleshooting of filamentous bulking using biofilm reactors
title Troubleshooting of filamentous bulking using biofilm reactors
spellingShingle Troubleshooting of filamentous bulking using biofilm reactors
Matos, M.
Biofilm reactors
Filamentous bulking
Filamentous fungi-like microorganism
Microbial community composition
Support concentration
title_short Troubleshooting of filamentous bulking using biofilm reactors
title_full Troubleshooting of filamentous bulking using biofilm reactors
title_fullStr Troubleshooting of filamentous bulking using biofilm reactors
title_full_unstemmed Troubleshooting of filamentous bulking using biofilm reactors
title_sort Troubleshooting of filamentous bulking using biofilm reactors
author Matos, M.
author_facet Matos, M.
Pereira, M. A.
Nicolau, Ana
Rodrigues, A. L.
Brito, A. G.
Nogueira, R.
author_role author
author2 Pereira, M. A.
Nicolau, Ana
Rodrigues, A. L.
Brito, A. G.
Nogueira, R.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Matos, M.
Pereira, M. A.
Nicolau, Ana
Rodrigues, A. L.
Brito, A. G.
Nogueira, R.
dc.subject.por.fl_str_mv Biofilm reactors
Filamentous bulking
Filamentous fungi-like microorganism
Microbial community composition
Support concentration
topic Biofilm reactors
Filamentous bulking
Filamentous fungi-like microorganism
Microbial community composition
Support concentration
description The present work aims to evaluate filamentous bulking control in systems combining suspended biomass with biofilm growth. For this study, four sequencing batch reactors (SBR)fed with an easy biodegradable substrate (acetate) were operated without (SBR1) and with support for biofilm growth [5 % (SBR2), 10 % (SBR3) and 20 % (SBR4) of the reactor volume]. The results demonstrated an overabundance of a filamentous fungi-like microorganism in the SBR operating just with suspended biomass. The incorporation of an optimized amount of support for biofilm growth (10 % and 20 %) seemed to suppress the overgrowth of this filamentous microorganism probably due to the combined effect of a decreased biomass loading rate and the physical cut or breakdown of filaments induced by particle-to-particle collisions. Besides the observed differences in terms of the filamentous fungi-like microorganism, the incorporation of a support material for biofilm growth was also found to induce increasing differences in the bacterial community structure as the concentration of support increased in the SBR.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/33211
url http://hdl.handle.net/1822/33211
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Matos, M.; Pereira, M. A.; Nicolau, Ana; Rodrigues, A. L.; Brito, A. G.; Nogueira, R., Troubleshooting of filamentous bulking using biofilm reactors. WEF/IWA Biofilm Reactor Technology Conference 2010. Portland, Oregon, USA, August 15 - 18, 162-175, 2010.
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.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 mluisa.alvim@gmail.com
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