Membrane-based treatment for tanning wastewaters 

Detalhes bibliográficos
Autor(a) principal: Catarino, Justina
Data de Publicação: 2013
Outros Autores: Mendonça, E., Picado, Ana, Lança, Ana, Silva, Luís, Pinho, Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/2359
Resumo: Tanning wastewater was subjected to different unit operations to select the best treatment sequences. Textile membrane filtration (TMF), microfiltration (MF), and ultrafiltration (UF) were complemented by screening, flocculation or flotation operations. The general chemical characterization determined that the wastewater had a high organic load. The ecotoxicological study classified the wastewater as highly ecotoxic. The sequence of screening–TMF – UF was found to be the optimal treatment for wastewaters of the first and second soaking stages, while the sequence of screening – TMF –flotation –UF proved to be adequate for the liming wastewater concerning productivity and water quality. Larger pore sizes MF membrane or higher molecular weight cut off (MWCO) UF membranes with higher permeability to pure water showed lower permeation fluxes for tanning wastewater. After membrane treatments, a decrease in the ecotoxicity was measured. The use of membrane treatment technology showed to be promising in removing organic pollutants and allowing the reuse of water and chemicals in the process.
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spelling Membrane-based treatment for tanning wastewaters Tanning wastewatersTanning wastewater was subjected to different unit operations to select the best treatment sequences. Textile membrane filtration (TMF), microfiltration (MF), and ultrafiltration (UF) were complemented by screening, flocculation or flotation operations. The general chemical characterization determined that the wastewater had a high organic load. The ecotoxicological study classified the wastewater as highly ecotoxic. The sequence of screening–TMF – UF was found to be the optimal treatment for wastewaters of the first and second soaking stages, while the sequence of screening – TMF –flotation –UF proved to be adequate for the liming wastewater concerning productivity and water quality. Larger pore sizes MF membrane or higher molecular weight cut off (MWCO) UF membranes with higher permeability to pure water showed lower permeation fluxes for tanning wastewater. After membrane treatments, a decrease in the ecotoxicity was measured. The use of membrane treatment technology showed to be promising in removing organic pollutants and allowing the reuse of water and chemicals in the process.ICE PublishingRepositório do LNEGCatarino, JustinaMendonça, E.Picado, AnaLança, AnaSilva, LuísPinho, Maria2014-03-31T10:16:40Z2013-01-01T00:00:00Z2013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2359engCatarino, J.; Mendonça, E.; Picado, A.; Lança, A.; Silva, L.; Pinho, M.N. Membrane-based treatment for tanning wastewaters. In: Journal of Environmental Engineering and Science, 2013, Vol. 8, nº 1, p. 69–751496-256Xinfo: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:RCAAP2022-09-06T12:27:19Zoai:repositorio.lneg.pt:10400.9/2359Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:15.283785Repositório 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 Membrane-based treatment for tanning wastewaters 
title Membrane-based treatment for tanning wastewaters 
spellingShingle Membrane-based treatment for tanning wastewaters 
Catarino, Justina
Tanning wastewaters
title_short Membrane-based treatment for tanning wastewaters 
title_full Membrane-based treatment for tanning wastewaters 
title_fullStr Membrane-based treatment for tanning wastewaters 
title_full_unstemmed Membrane-based treatment for tanning wastewaters 
title_sort Membrane-based treatment for tanning wastewaters 
author Catarino, Justina
author_facet Catarino, Justina
Mendonça, E.
Picado, Ana
Lança, Ana
Silva, Luís
Pinho, Maria
author_role author
author2 Mendonça, E.
Picado, Ana
Lança, Ana
Silva, Luís
Pinho, Maria
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Catarino, Justina
Mendonça, E.
Picado, Ana
Lança, Ana
Silva, Luís
Pinho, Maria
dc.subject.por.fl_str_mv Tanning wastewaters
topic Tanning wastewaters
description Tanning wastewater was subjected to different unit operations to select the best treatment sequences. Textile membrane filtration (TMF), microfiltration (MF), and ultrafiltration (UF) were complemented by screening, flocculation or flotation operations. The general chemical characterization determined that the wastewater had a high organic load. The ecotoxicological study classified the wastewater as highly ecotoxic. The sequence of screening–TMF – UF was found to be the optimal treatment for wastewaters of the first and second soaking stages, while the sequence of screening – TMF –flotation –UF proved to be adequate for the liming wastewater concerning productivity and water quality. Larger pore sizes MF membrane or higher molecular weight cut off (MWCO) UF membranes with higher permeability to pure water showed lower permeation fluxes for tanning wastewater. After membrane treatments, a decrease in the ecotoxicity was measured. The use of membrane treatment technology showed to be promising in removing organic pollutants and allowing the reuse of water and chemicals in the process.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01T00:00:00Z
2013-01-01T00:00:00Z
2014-03-31T10:16:40Z
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/10400.9/2359
url http://hdl.handle.net/10400.9/2359
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Catarino, J.; Mendonça, E.; Picado, A.; Lança, A.; Silva, L.; Pinho, M.N. Membrane-based treatment for tanning wastewaters. In: Journal of Environmental Engineering and Science, 2013, Vol. 8, nº 1, p. 69–75
1496-256X
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 ICE Publishing
publisher.none.fl_str_mv ICE Publishing
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
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