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Towards a Novel Combined Treatment Approach Using Light-Emitting Diodes and Photocatalytic Ceramic Membranes

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dc.contributor.authorBernardo, Jorge
dc.contributor.authorSério, João
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorMarques, Ana Paula
dc.contributor.authorHuertas Penela, Rosa María
dc.contributor.authorCrespo, João Goulão
dc.date.accessioned2025-09-22T10:54:45Z
dc.date.available2025-09-22T10:54:45Z
dc.date.issued2022-01-19
dc.descriptionThe registered version of this article, first published in Water, 2022, 14(3), 292 , is available online at the publisher's website: https://doi.org/10.3390/w14030292
dc.descriptionLa versión registrada de este artículo, publicado por primera vez en Water, 2022, 14(3), 292 , está disponible en línea en el sitio web del editor: https://doi.org/10.3390/w14030292
dc.descriptionThis research was funded by Fundação para a Ciência e a Tecnologia through the fellowship SFRH/BD/111150/2015 and project PTDC/EAM-AMB/30989/2017, the Associate Laboratory for Green Chemistry—LAQV (UIDB/50006/2020 and UIDP/50006/2020). iNOVA4Health—UIDB/04462/2020 and UIDP/04462/2020, a program financially supported by Fundação para a Ciência e Tecnologia/Ministério da Ciência, Tecnologia e Ensino Superior, through national funds is acknowledged. Funding from INTERFACE Programme, through the Innovation, Technology and Circular Economy Fund (FITEC), is gratefully acknowledged.
dc.description.abstractNatural disasters (such as earthquakes, floods, heatwaves and landslides), isolation and war affect the water access of millions of people worldwide. Developments in the areas of membrane filtration, photolysis and photocatalysis are important for safe water production and water re-use applications. This work aimed to test alternative ways to ensure effective disinfection of wastewater effluents: light-emitting diodes that emit at different wavelengths, photocatalytic membranes, and the combination of the two solutions. The different treatment processes were tested at the laboratory scale to assess their performance in the removal and inactivation of water quality indicator bacteria and fungi present in wastewater effluents. The membranes were found to be effective to retain the microorganisms (rejection values higher than 96%), while three small ultraviolet C light-emitting diodes that emitted light at 255 and 265 nm showed an excellent performance for inactivation (higher than 2.5-log inactivation of total coliforms and Escherichia coli after 10 min of exposure in real wastewater effluents). When photocatalytic membranes are used, ultraviolet A light-emitting diodes ensured effective treatment of the retentate (higher than 65%). The combination of these two processes is extremely promising since it ensures not only the production of a high quality permeate that can be reused, but also the treatment of the retentate.en
dc.description.provenanceMade available in DSpace on 2025-09-22T10:54:45Z (GMT). No. of bitstreams: 1 Huertas Penela_Rosa María_ Towards a Novel Co_ROSA MARIA HUERTAS P.pdf: 1146612 bytes, checksum: 50ab6dd8aa5566d2452ff0b6a3bcb3b8 (MD5) Previous issue date: 2022-01-19en
dc.description.versionversión publicada
dc.identifier.citationBernardo, J., Sério, J., Oliveira, B., Marques, A. P., Huertas, R., Crespo, J. G., & Pereira, V. J. (2022). Towards a Novel Combined Treatment Approach Using Light-Emitting Diodes and Photocatalytic Ceramic Membranes. Water (Switzerland), 14(3). https://doi.org/10.3390/W14030292
dc.identifier.doihttps://doi.org/10.3390/w14030292
dc.identifier.issn2073-4441
dc.identifier.urihttps://hdl.handle.net/20.500.14468/30105
dc.journal.issue3
dc.journal.titleWater
dc.journal.volume14
dc.language.isoen
dc.publisherMDPI
dc.relation.centerFacultad de Ciencias
dc.relation.departmentCiencias y Técnicas Fisicoquímicas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.es
dc.subject23 Química
dc.subject32 Ciencias Médicas
dc.subject.keywordsindicator bacteria and fungien
dc.subject.keywordswastewater effluenten
dc.subject.keywordslight-emitting diodesen
dc.subject.keywordsceramic membranesen
dc.subject.keywordsphotocatalytic membranesen
dc.subject.keywordscombined treatmenten
dc.subject.keywordsretention and disinfectionen
dc.titleTowards a Novel Combined Treatment Approach Using Light-Emitting Diodes and Photocatalytic Ceramic Membranesen
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublication559a1645-c7e7-4e61-a6dc-ff71cd98d6f5
relation.isAuthorOfPublication.latestForDiscovery559a1645-c7e7-4e61-a6dc-ff71cd98d6f5
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