Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors

Detalhes bibliográficos
Autor(a) principal: Matos, M.
Data de Publicação: 2010
Outros Autores: Costa, R., Pinto, R., 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/1822/35912
Resumo: Since the extensive research during the 70s, sequencing batch reactors (SBR) have become a quite common modification of activated sludge process. Additionally, the SBR can be combined with biofilm growth on the surface of a support material originating the Sequencing Batch Biofilm Reactors (SBBR). While several comparative studies between the two systems were done in terms of organic carbon and nutrients removal efficiency, a detailed comparison of their biocenoses is not documented in the literature. The present work aims to compare the biocenoses from SBR and SBBR. In order to reach this objective four reactors were operated in parallel. One reactor was operated just with suspended biomass (SBR1) while the others combined suspended biomass with biofilm cultivation. The biofilm was formed on a new type of polyethylene support developed by University of Minho, called DupUM. The bed formed by these supports occupied 5 % (SBBR2), 10 % (SBBR3) and 20 % (SBBR4) of the reactor volume. Microscopic inspection revealed that the quality of biocenoses from reactors started to differ very soon after the inoculation. The biocenose of SBR1 and SBBR2 was dominated by filamentous microorganisms, while in SBBR3 and SBBR4 the communities were clearly more complex. The incorporation of an optimized amount of support for biofilm growth apparently suppressed the overgrowth of filamentous microorganisms. The differences between the biocenoses of the reactors are documented in figure 1.
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spelling Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactorsSince the extensive research during the 70s, sequencing batch reactors (SBR) have become a quite common modification of activated sludge process. Additionally, the SBR can be combined with biofilm growth on the surface of a support material originating the Sequencing Batch Biofilm Reactors (SBBR). While several comparative studies between the two systems were done in terms of organic carbon and nutrients removal efficiency, a detailed comparison of their biocenoses is not documented in the literature. The present work aims to compare the biocenoses from SBR and SBBR. In order to reach this objective four reactors were operated in parallel. One reactor was operated just with suspended biomass (SBR1) while the others combined suspended biomass with biofilm cultivation. The biofilm was formed on a new type of polyethylene support developed by University of Minho, called DupUM. The bed formed by these supports occupied 5 % (SBBR2), 10 % (SBBR3) and 20 % (SBBR4) of the reactor volume. Microscopic inspection revealed that the quality of biocenoses from reactors started to differ very soon after the inoculation. The biocenose of SBR1 and SBBR2 was dominated by filamentous microorganisms, while in SBBR3 and SBBR4 the communities were clearly more complex. The incorporation of an optimized amount of support for biofilm growth apparently suppressed the overgrowth of filamentous microorganisms. The differences between the biocenoses of the reactors are documented in figure 1.Universidade do MinhoMatos, M.Costa, R.Pinto, R.Brito, A. G.Nogueira, R.20102010-01-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/35912engMatos, M.; Costa, R.; Pinto, R.; Brito, A. G.; Nogueira, R., Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors. Water Research Conference 2010. No. P067, Lisbon, Portugal, 11-14 April, 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:RCAAP2024-05-11T06:50:01Zoai:repositorium.sdum.uminho.pt:1822/35912Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T06:50:01Repositório 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 Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
title Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
spellingShingle Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
Matos, M.
title_short Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
title_full Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
title_fullStr Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
title_full_unstemmed Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
title_sort Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors
author Matos, M.
author_facet Matos, M.
Costa, R.
Pinto, R.
Brito, A. G.
Nogueira, R.
author_role author
author2 Costa, R.
Pinto, R.
Brito, A. G.
Nogueira, R.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Matos, M.
Costa, R.
Pinto, R.
Brito, A. G.
Nogueira, R.
description Since the extensive research during the 70s, sequencing batch reactors (SBR) have become a quite common modification of activated sludge process. Additionally, the SBR can be combined with biofilm growth on the surface of a support material originating the Sequencing Batch Biofilm Reactors (SBBR). While several comparative studies between the two systems were done in terms of organic carbon and nutrients removal efficiency, a detailed comparison of their biocenoses is not documented in the literature. The present work aims to compare the biocenoses from SBR and SBBR. In order to reach this objective four reactors were operated in parallel. One reactor was operated just with suspended biomass (SBR1) while the others combined suspended biomass with biofilm cultivation. The biofilm was formed on a new type of polyethylene support developed by University of Minho, called DupUM. The bed formed by these supports occupied 5 % (SBBR2), 10 % (SBBR3) and 20 % (SBBR4) of the reactor volume. Microscopic inspection revealed that the quality of biocenoses from reactors started to differ very soon after the inoculation. The biocenose of SBR1 and SBBR2 was dominated by filamentous microorganisms, while in SBBR3 and SBBR4 the communities were clearly more complex. The incorporation of an optimized amount of support for biofilm growth apparently suppressed the overgrowth of filamentous microorganisms. The differences between the biocenoses of the reactors are documented in figure 1.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/35912
url http://hdl.handle.net/1822/35912
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Matos, M.; Costa, R.; Pinto, R.; Brito, A. G.; Nogueira, R., Comparison of biocenoses from sequencing batch and sequencing biofilm batch reactors. Water Research Conference 2010. No. P067, Lisbon, Portugal, 11-14 April, 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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