Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/154552 |
Resumo: | Funding Information: The authors would like to thank the staff at Hobro dairy for collection of acid whey samples. Also, special thanks to MemBrain s.r.o. and MEGA a.s. for providing us with the electrodialysis unit and the ion-exchange membranes. This present study is a part of the Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), Copenhagen University and Arla Foods. Publisher Copyright: © 2023 The Author(s) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy2D fluorescence spectroscopyAcid wheyElectrodialysisFoulingFTIRIon-exchange membranesAnalytical ChemistryFiltration and SeparationFunding Information: The authors would like to thank the staff at Hobro dairy for collection of acid whey samples. Also, special thanks to MemBrain s.r.o. and MEGA a.s. for providing us with the electrodialysis unit and the ion-exchange membranes. This present study is a part of the Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), Copenhagen University and Arla Foods. Publisher Copyright: © 2023 The Author(s)Acid whey (AW), a by-product from the production of acidified dairy products, contains high amounts of lactic acid and minerals that can be recovered by electrodialysis (ED). To better understand the process and improve its efficiency, the objective of this study was to investigate fouling of ion-exchange membranes (IEMs) during ED of AW and concentrated AW by reverse osmosis (ROAW), underlimiting (ULCD), limiting (LCD) and overlimiting current density operating conditions (OLCD). The structure, hydrophobicity, and chemical composition of membranes showed differences regarding fouling on anion- (AEM) and cation- (CEM) exchange membranes facing the diluate and the concentrate, both for AW and ROAW. Furthermore, operating at OLCD tends to reduce fouling compared to ULCD, due to the expected generation of electroconvective vortices. 2D fluorescence spectroscopy and Fourier-transform infrared spectroscopy (FTIR) provided complementary and more detailed information regarding the fouling and efficiency of the cleaning procedure. The 2D fluorescence spectra showed that the AEM surfaces in contact with the diluate change more than those in contact with the concentrate. The FTIR analyses showed the presence of lactose and lactic acid on the AEM surfaces in contact with the concentrate, which could not be detected by fluorescence.LAQV@REQUIMTEDQ - Departamento de QuímicaRUNNielsen, Emilie N.Cordin, UlysseGøtke, MathiasVelizarov, SvetlozarGalinha, Cláudia F.Skibsted, Leif H.Crespo, João G.Ahrné, Lilia M.2023-06-28T22:17:33Z2023-07-012023-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12application/pdfhttp://hdl.handle.net/10362/154552eng1383-5866PURE: 64722638https://doi.org/10.1016/j.seppur.2023.123814info: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:RCAAP2024-03-11T05:36:58Zoai:run.unl.pt:10362/154552Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:39.733630Repositório 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 |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
title |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
spellingShingle |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy Nielsen, Emilie N. 2D fluorescence spectroscopy Acid whey Electrodialysis Fouling FTIR Ion-exchange membranes Analytical Chemistry Filtration and Separation |
title_short |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
title_full |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
title_fullStr |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
title_full_unstemmed |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
title_sort |
Fouling of ion-exchange membranes during electrodialytic acid whey processing analysed by 2D fluorescence and FTIR spectroscopy |
author |
Nielsen, Emilie N. |
author_facet |
Nielsen, Emilie N. Cordin, Ulysse Gøtke, Mathias Velizarov, Svetlozar Galinha, Cláudia F. Skibsted, Leif H. Crespo, João G. Ahrné, Lilia M. |
author_role |
author |
author2 |
Cordin, Ulysse Gøtke, Mathias Velizarov, Svetlozar Galinha, Cláudia F. Skibsted, Leif H. Crespo, João G. Ahrné, Lilia M. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
LAQV@REQUIMTE DQ - Departamento de Química RUN |
dc.contributor.author.fl_str_mv |
Nielsen, Emilie N. Cordin, Ulysse Gøtke, Mathias Velizarov, Svetlozar Galinha, Cláudia F. Skibsted, Leif H. Crespo, João G. Ahrné, Lilia M. |
dc.subject.por.fl_str_mv |
2D fluorescence spectroscopy Acid whey Electrodialysis Fouling FTIR Ion-exchange membranes Analytical Chemistry Filtration and Separation |
topic |
2D fluorescence spectroscopy Acid whey Electrodialysis Fouling FTIR Ion-exchange membranes Analytical Chemistry Filtration and Separation |
description |
Funding Information: The authors would like to thank the staff at Hobro dairy for collection of acid whey samples. Also, special thanks to MemBrain s.r.o. and MEGA a.s. for providing us with the electrodialysis unit and the ion-exchange membranes. This present study is a part of the Platform for Novel Gentle Processing supported by the Dairy Rationalisation Fund (DDRF), Copenhagen University and Arla Foods. Publisher Copyright: © 2023 The Author(s) |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-06-28T22:17:33Z 2023-07-01 2023-07-01T00:00:00Z |
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/10362/154552 |
url |
http://hdl.handle.net/10362/154552 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1383-5866 PURE: 64722638 https://doi.org/10.1016/j.seppur.2023.123814 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
12 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 |
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1799138143622922240 |