Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes

Detalhes bibliográficos
Autor(a) principal: Zakmout, Asmaa
Data de Publicação: 2020
Outros Autores: Sadi, Fatma, Portugal, Carla A. M., Crespo, João G., Velizarov, Svetlozar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/117156
Resumo: UID/QUI/50006/2019
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spelling Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranesChitosan membranesChromium recoveryNanofiltrationReverse osmosisTannery effluentChemical Engineering (miscellaneous)Process Chemistry and TechnologyFiltration and SeparationSDG 6 - Clean Water and SanitationSDG 11 - Sustainable Cities and CommunitiesUID/QUI/50006/2019The objective of this work is to develop an appropriate technology for environmentally sound membrane-based purification of a tannery effluent assuring, simultaneously, the recovery of chromium, considered as the most hazardous inorganic water pollutant extensively used in leather tanning. A comparison between the permeate fluxes obtained during treatment of a synthetic tannery effluent through nanofiltration (NF270 and NF90 membranes) and reverse osmosis (BW30 and SW30) membranes was first performed. Then, a dedicated polymeric membrane was prepared by coating chitosan (cs) on a polyethersulfone (PES) microfiltration membrane (cs-PES MFO22) support. The resulting membrane was characterized by Fourier Transforms Infrared Spectroscopy Attenuated Total Reflectance (FTIR-ATR), Emission Scanning Electronic Microscopy (SEM) to confirm the process of surface modification and cross-linking of chitosan with glutaraldehyde. This membrane was found to be highly effective for chromium removal (>99%), which was more than eight times higher in reference to monovalent cations (e.g., Na+ and K+) and more than six times higher in reference to the divalent cations (Mg2+ and Ca2+) studied. The reverse osmosis permeate conforms to local Algerian regulations regarding being discharged directly into the natural environment (in this case, Reghaia Lake) or into urban sewers linked to wastewater biological treatment stations. While the SW30 membrane proved to be the most effective for purification of the tannery effluent, the chitosan modified membrane proved to be appropriate for recovery of chromium from the reverse osmosis concentrate.DQ - Departamento de QuímicaLAQV@REQUIMTERUNZakmout, AsmaaSadi, FatmaPortugal, Carla A. M.Crespo, João G.Velizarov, Svetlozar2021-05-05T23:27:36Z2020-11-282020-11-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20application/pdfhttp://hdl.handle.net/10362/117156eng0076-6356PURE: 28469134https://doi.org/10.3390/membranes10120378info: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:RCAAP2024-03-11T05:00:13Zoai:run.unl.pt:10362/117156Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:43:30.472925Repositório 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 Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
title Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
spellingShingle Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
Zakmout, Asmaa
Chitosan membranes
Chromium recovery
Nanofiltration
Reverse osmosis
Tannery effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 6 - Clean Water and Sanitation
SDG 11 - Sustainable Cities and Communities
title_short Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
title_full Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
title_fullStr Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
title_full_unstemmed Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
title_sort Tannery effluent treatment by nanofiltration, reverse osmosis and chitosan modified membranes
author Zakmout, Asmaa
author_facet Zakmout, Asmaa
Sadi, Fatma
Portugal, Carla A. M.
Crespo, João G.
Velizarov, Svetlozar
author_role author
author2 Sadi, Fatma
Portugal, Carla A. M.
Crespo, João G.
Velizarov, Svetlozar
author2_role author
author
author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Zakmout, Asmaa
Sadi, Fatma
Portugal, Carla A. M.
Crespo, João G.
Velizarov, Svetlozar
dc.subject.por.fl_str_mv Chitosan membranes
Chromium recovery
Nanofiltration
Reverse osmosis
Tannery effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 6 - Clean Water and Sanitation
SDG 11 - Sustainable Cities and Communities
topic Chitosan membranes
Chromium recovery
Nanofiltration
Reverse osmosis
Tannery effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 6 - Clean Water and Sanitation
SDG 11 - Sustainable Cities and Communities
description UID/QUI/50006/2019
publishDate 2020
dc.date.none.fl_str_mv 2020-11-28
2020-11-28T00:00:00Z
2021-05-05T23:27:36Z
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/10362/117156
url http://hdl.handle.net/10362/117156
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0076-6356
PURE: 28469134
https://doi.org/10.3390/membranes10120378
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 20
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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