Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents

Detalhes bibliográficos
Autor(a) principal: Rita, Ana Isabel
Data de Publicação: 2022
Outros Autores: Nabais, Ana Rita, Neves, Luísa A., Huertas, Rosa, Santos, Maria, Madeira, Luís M., Sanches, Sandra
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/143183
Resumo: Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
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spelling Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic EffluentsAgingCeramic vs. polymeric membranesNanofiltrationNaphthenic spent caustic effluentChemical Engineering (miscellaneous)Process Chemistry and TechnologyFiltration and SeparationSDG 3 - Good Health and Well-beingPublisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.Spent caustic effluents are very challenging due to their very hazardous nature in terms of toxicity as well as their extreme pH (approximately 12–14). Spent caustic has presented a challenge for wastewater treatment in refineries, due to its composition rich in mercaptans, sulfides and other aromatic compounds. To address such problems, membrane filtration was studied using real effluents from Sines Refinery, in Portugal. The present study attempts to assess the potential for spent caustic treatment with nanofiltration (NF) polymeric and ceramic membranes, assessing membrane life expectancy. For that, membrane aging studies in static mode were performed with the polymeric membrane before attempting NF treatment (dynamic studies). A ceramic membrane was also tested for the first time with this type of effluents, though only in dynamic mode. Although the polymeric membrane performance was very good and in accordance with previous studies, its lifespan was very reduced after 6 weeks of contact with spent caustic, compromising its use in an industrial unit. Contrarily to expectations, the ceramic membrane tested was not chemically more resistant than the polymeric one upon direct contact with spent caustic (loss of retention capacity in less than 1 h in contact with the spent caustic). The results obtained suggest that a pH of 13.9 is very aggressive, even for ceramic membranes.DQ - Departamento de QuímicaLAQV@REQUIMTERUNRita, Ana IsabelNabais, Ana RitaNeves, Luísa A.Huertas, RosaSantos, MariaMadeira, Luís M.Sanches, Sandra2022-08-22T22:15:59Z2022-01-172022-01-17T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article21application/pdfhttp://hdl.handle.net/10362/143183eng0076-6356PURE: 42798470https://doi.org/10.3390/membranes12010098info: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:RCAAP2024-03-11T05:21:21Zoai:run.unl.pt:10362/143183Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:50:44.506813Repositório 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 Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
title Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
spellingShingle Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
Rita, Ana Isabel
Aging
Ceramic vs. polymeric membranes
Nanofiltration
Naphthenic spent caustic effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 3 - Good Health and Well-being
title_short Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
title_full Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
title_fullStr Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
title_full_unstemmed Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
title_sort Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents
author Rita, Ana Isabel
author_facet Rita, Ana Isabel
Nabais, Ana Rita
Neves, Luísa A.
Huertas, Rosa
Santos, Maria
Madeira, Luís M.
Sanches, Sandra
author_role author
author2 Nabais, Ana Rita
Neves, Luísa A.
Huertas, Rosa
Santos, Maria
Madeira, Luís M.
Sanches, Sandra
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Rita, Ana Isabel
Nabais, Ana Rita
Neves, Luísa A.
Huertas, Rosa
Santos, Maria
Madeira, Luís M.
Sanches, Sandra
dc.subject.por.fl_str_mv Aging
Ceramic vs. polymeric membranes
Nanofiltration
Naphthenic spent caustic effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 3 - Good Health and Well-being
topic Aging
Ceramic vs. polymeric membranes
Nanofiltration
Naphthenic spent caustic effluent
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Filtration and Separation
SDG 3 - Good Health and Well-being
description Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
publishDate 2022
dc.date.none.fl_str_mv 2022-08-22T22:15:59Z
2022-01-17
2022-01-17T00:00:00Z
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/10362/143183
url http://hdl.handle.net/10362/143183
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0076-6356
PURE: 42798470
https://doi.org/10.3390/membranes12010098
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 21
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
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