Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations

Detalhes bibliográficos
Autor(a) principal: Mota, M.
Data de Publicação: 2002
Outros Autores: Teixeira, J. A., Yelshin, Alexander
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/1186
Resumo: The problems related to tortuosity variation whenever filter cakes are composed of cells with different shapes and compressible biosuspensions are discussed. Presented examples show that neglecting the tortuosity variation may lead to significant miscalculations of cake porosity or of specific cake resistance. Specific cake resistance of rod-like particles in cross-flow filtration depends on the higher tortuosity obtained by the shear-induced ordered arrangement. In turn, spheroid cells such as baker’s yeast cells do not affect tortuosity as much as the rod-shaped cells. By including tortuosity as a parameter of compressible cakes, a more precise representation of cakes’ behaviour may be obtained. The tortuosity becomes a highly significant parameter with the increase in filtration pressure.
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spelling Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrationsCellsMembrane filtrationSpecific cake resistanceTortuosityPorosityScience & TechnologyThe problems related to tortuosity variation whenever filter cakes are composed of cells with different shapes and compressible biosuspensions are discussed. Presented examples show that neglecting the tortuosity variation may lead to significant miscalculations of cake porosity or of specific cake resistance. Specific cake resistance of rod-like particles in cross-flow filtration depends on the higher tortuosity obtained by the shear-induced ordered arrangement. In turn, spheroid cells such as baker’s yeast cells do not affect tortuosity as much as the rod-shaped cells. By including tortuosity as a parameter of compressible cakes, a more precise representation of cakes’ behaviour may be obtained. The tortuosity becomes a highly significant parameter with the increase in filtration pressure.North Atlantic Treaty Organisation (NATO) - Science fellowships Programme.ElsevierUniversidade do MinhoMota, M.Teixeira, J. A.Yelshin, Alexander20022002-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/1186eng“Separation and purification technology”. 27:2 (2002) 137-144.1383-586610.1016/S1383-5866(01)00202-7info: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:RCAAP2023-07-21T12:21:35Zoai:repositorium.sdum.uminho.pt:1822/1186Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:14:52.682094Repositório 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 Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
title Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
spellingShingle Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
Mota, M.
Cells
Membrane filtration
Specific cake resistance
Tortuosity
Porosity
Science & Technology
title_short Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
title_full Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
title_fullStr Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
title_full_unstemmed Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
title_sort Influence of cell-shape on the cake resistance in dead-end and cross-flow filtrations
author Mota, M.
author_facet Mota, M.
Teixeira, J. A.
Yelshin, Alexander
author_role author
author2 Teixeira, J. A.
Yelshin, Alexander
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Mota, M.
Teixeira, J. A.
Yelshin, Alexander
dc.subject.por.fl_str_mv Cells
Membrane filtration
Specific cake resistance
Tortuosity
Porosity
Science & Technology
topic Cells
Membrane filtration
Specific cake resistance
Tortuosity
Porosity
Science & Technology
description The problems related to tortuosity variation whenever filter cakes are composed of cells with different shapes and compressible biosuspensions are discussed. Presented examples show that neglecting the tortuosity variation may lead to significant miscalculations of cake porosity or of specific cake resistance. Specific cake resistance of rod-like particles in cross-flow filtration depends on the higher tortuosity obtained by the shear-induced ordered arrangement. In turn, spheroid cells such as baker’s yeast cells do not affect tortuosity as much as the rod-shaped cells. By including tortuosity as a parameter of compressible cakes, a more precise representation of cakes’ behaviour may be obtained. The tortuosity becomes a highly significant parameter with the increase in filtration pressure.
publishDate 2002
dc.date.none.fl_str_mv 2002
2002-01-01T00:00:00Z
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/1822/1186
url http://hdl.handle.net/1822/1186
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “Separation and purification technology”. 27:2 (2002) 137-144.
1383-5866
10.1016/S1383-5866(01)00202-7
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
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
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