Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens

Detalhes bibliográficos
Autor(a) principal: Pinheiro, M. M.
Data de Publicação: 1988
Outros Autores: Melo, L. F., Bott, T. R., Pinheiro, J. D. R. S., Leitão, L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/41764
Resumo: Biofilm adhesion to metals (copper, aluminium and brass) was studied at two different velocities and pH values of 7 and 9. Both bacteria and metals showed negative surface charges at those values of pH, which tends to slow down adhesion. Film densities increased with the fluid velocity and were also affected by the pH and by the growth rate of the bacteria. Long duration tests based on heat transfer measurements were run at five different fluid velocities and at pH = 7, showing in general an asymptotic behaviour and a control of deposition by adhesion and growth phenomena.
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spelling Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescensBiofoulingFouling of metal surfacesDeposition surface effectsBiofilm adhesionDensityScience & TechnologyBiofilm adhesion to metals (copper, aluminium and brass) was studied at two different velocities and pH values of 7 and 9. Both bacteria and metals showed negative surface charges at those values of pH, which tends to slow down adhesion. Film densities increased with the fluid velocity and were also affected by the pH and by the growth rate of the bacteria. Long duration tests based on heat transfer measurements were run at five different fluid velocities and at pH = 7, showing in general an asymptotic behaviour and a control of deposition by adhesion and growth phenomena.On a ttudie l’adhesion de films biologiques sur des mttaux (cuivre, aluminium et laiton) h difftrentes vitesses et pour des pH de 7 et 9. Les charges de surface negatives des mttaux et des bacttries, obtenues pour ces valeurs de pH, tendent & ralentir l’adhesion. La densitt des films augmente avec la vitesse du fluide et est modifik par le pH ainsi que par la vitesse de croissance des bacttries. Des tests de longue durk utilisant des mesures de transfert de chaleur ont ttt effectues pour cinq vitesses de fluide difftrentes h un pH de 7, montrant un comportement asymptotique ainsi qu’un contr6le du dtpat par la croissance et l’adhesion; en outre, la deposition est contr61te par l’adhtsion.Canadian Society for Chemical Engineering (CSChE)Universidade do MinhoPinheiro, M. M.Melo, L. F.Bott, T. R.Pinheiro, J. D. R. S.Leitão, L.1988-021988-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/41764engPinheiro, M.; Melo, L. F.; Bott, T. R.; Pinheiro, J.; Leitão, L., Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens. Canadian Journal of Chemical Engineering, 66(1), 63-67, 19880008-403410.1002/cjce.5450660109http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1939-019Xinfo: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:RCAAP2023-07-21T12:04:38Zoai:repositorium.sdum.uminho.pt:1822/41764Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:54:56.708859Repositório 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 Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
title Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
spellingShingle Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
Pinheiro, M. M.
Biofouling
Fouling of metal surfaces
Deposition surface effects
Biofilm adhesion
Density
Science & Technology
title_short Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
title_full Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
title_fullStr Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
title_full_unstemmed Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
title_sort Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens
author Pinheiro, M. M.
author_facet Pinheiro, M. M.
Melo, L. F.
Bott, T. R.
Pinheiro, J. D. R. S.
Leitão, L.
author_role author
author2 Melo, L. F.
Bott, T. R.
Pinheiro, J. D. R. S.
Leitão, L.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pinheiro, M. M.
Melo, L. F.
Bott, T. R.
Pinheiro, J. D. R. S.
Leitão, L.
dc.subject.por.fl_str_mv Biofouling
Fouling of metal surfaces
Deposition surface effects
Biofilm adhesion
Density
Science & Technology
topic Biofouling
Fouling of metal surfaces
Deposition surface effects
Biofilm adhesion
Density
Science & Technology
description Biofilm adhesion to metals (copper, aluminium and brass) was studied at two different velocities and pH values of 7 and 9. Both bacteria and metals showed negative surface charges at those values of pH, which tends to slow down adhesion. Film densities increased with the fluid velocity and were also affected by the pH and by the growth rate of the bacteria. Long duration tests based on heat transfer measurements were run at five different fluid velocities and at pH = 7, showing in general an asymptotic behaviour and a control of deposition by adhesion and growth phenomena.
publishDate 1988
dc.date.none.fl_str_mv 1988-02
1988-02-01T00:00:00Z
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/1822/41764
url http://hdl.handle.net/1822/41764
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pinheiro, M.; Melo, L. F.; Bott, T. R.; Pinheiro, J.; Leitão, L., Surface phenomena and hydrodynamic effects on the deposition of Pseudomonas fluorescens. Canadian Journal of Chemical Engineering, 66(1), 63-67, 1988
0008-4034
10.1002/cjce.5450660109
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1939-019X
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 Canadian Society for Chemical Engineering (CSChE)
publisher.none.fl_str_mv Canadian Society for Chemical Engineering (CSChE)
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
_version_ 1799132333177044992

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