Troubleshooting of filamentous bulking using biofilm reactors
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , |
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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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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1817545235460259840 |