Fluoride removal from natural waters by polymer inclusion membranes

A polymer inclusion membrane (PIM) containing commercial ionic liquid methyltrioctylammonium chloride (Aliquat 336) as a carrier and cellulose triacetate (CTA) as a base polymer has been used for the first time to remove fluoride from natural waters. Due to the anion-exchange characteristics of the...

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Detalles Bibliográficos
Autores: Alcalde Saña, Berta, Anticó i Daró, Ma. Enriqueta, Fontàs Rigau, Clàudia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/20827
Acceso en línea:http://hdl.handle.net/10256/20827
Access Level:acceso abierto
Palabra clave:Membranes (Tecnologia)
Membranes (Technology)
Aigua -- Depuració
Water -- Purification
Separació (Tecnologia)
Separation (Technology)
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spelling Fluoride removal from natural waters by polymer inclusion membranesAlcalde Saña, BertaAnticó i Daró, Ma. EnriquetaFontàs Rigau, ClàudiaMembranes (Tecnologia)Membranes (Technology)Aigua -- DepuracióWater -- PurificationSeparació (Tecnologia)Separation (Technology)A polymer inclusion membrane (PIM) containing commercial ionic liquid methyltrioctylammonium chloride (Aliquat 336) as a carrier and cellulose triacetate (CTA) as a base polymer has been used for the first time to remove fluoride from natural waters. Due to the anion-exchange characteristics of the carrier, a 1 M NaCl solution has been used as a receiving phase. It has been found that the addition of tributyl phosphate (TBP) in the formulation of the PIM increased the membrane's performance. Several parameters have been investigated using a PIM made of 30% CTA, 50% Aliquat 336, and 20% TBP (% in mass) including the effect of other ions such as chloride and sulphate and the effect of pH. Only when the feed phase contains high amounts of chloride (concentration 10 times higher than fluoride) a slight decrease on PIM's efficiency is observed (85% defluoridation). The separation system developed here has been used satisfactorily for fluoride removal from different naturally occurring waters. Moreover, the membrane's reusability has also been investigated, showing that the membrane can be used for four cycles without loss of efficiency in removing fluorideThis work was supported by the Ministerio de Ciencia, Innovación y Universidades (MCIU) through project PID2019-107033 GB-C22/AEI/10.13039/501100011033Open Access funding provided thanks to the CRUE-CSIC agreement with ElsevierElsevierAgencia Estatal de Investigación2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/20827http://hdl.handle.net/10256/20827Journal of Membrane Science, 2022, vol. 644, art.núm.120161Articles publicats (D-Q)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2021.120161info:eu-repo/semantics/altIdentifier/issn/0376-7388PID2019-107033GB-C22info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107033GB-C22Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/208272026-05-29T05:05:01Z
dc.title.none.fl_str_mv Fluoride removal from natural waters by polymer inclusion membranes
title Fluoride removal from natural waters by polymer inclusion membranes
spellingShingle Fluoride removal from natural waters by polymer inclusion membranes
Alcalde Saña, Berta
Membranes (Tecnologia)
Membranes (Technology)
Aigua -- Depuració
Water -- Purification
Separació (Tecnologia)
Separation (Technology)
title_short Fluoride removal from natural waters by polymer inclusion membranes
title_full Fluoride removal from natural waters by polymer inclusion membranes
title_fullStr Fluoride removal from natural waters by polymer inclusion membranes
title_full_unstemmed Fluoride removal from natural waters by polymer inclusion membranes
title_sort Fluoride removal from natural waters by polymer inclusion membranes
dc.creator.none.fl_str_mv Alcalde Saña, Berta
Anticó i Daró, Ma. Enriqueta
Fontàs Rigau, Clàudia
author Alcalde Saña, Berta
author_facet Alcalde Saña, Berta
Anticó i Daró, Ma. Enriqueta
Fontàs Rigau, Clàudia
author_role author
author2 Anticó i Daró, Ma. Enriqueta
Fontàs Rigau, Clàudia
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación
dc.subject.none.fl_str_mv Membranes (Tecnologia)
Membranes (Technology)
Aigua -- Depuració
Water -- Purification
Separació (Tecnologia)
Separation (Technology)
topic Membranes (Tecnologia)
Membranes (Technology)
Aigua -- Depuració
Water -- Purification
Separació (Tecnologia)
Separation (Technology)
description A polymer inclusion membrane (PIM) containing commercial ionic liquid methyltrioctylammonium chloride (Aliquat 336) as a carrier and cellulose triacetate (CTA) as a base polymer has been used for the first time to remove fluoride from natural waters. Due to the anion-exchange characteristics of the carrier, a 1 M NaCl solution has been used as a receiving phase. It has been found that the addition of tributyl phosphate (TBP) in the formulation of the PIM increased the membrane's performance. Several parameters have been investigated using a PIM made of 30% CTA, 50% Aliquat 336, and 20% TBP (% in mass) including the effect of other ions such as chloride and sulphate and the effect of pH. Only when the feed phase contains high amounts of chloride (concentration 10 times higher than fluoride) a slight decrease on PIM's efficiency is observed (85% defluoridation). The separation system developed here has been used satisfactorily for fluoride removal from different naturally occurring waters. Moreover, the membrane's reusability has also been investigated, showing that the membrane can be used for four cycles without loss of efficiency in removing fluoride
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/20827
http://hdl.handle.net/10256/20827
url http://hdl.handle.net/10256/20827
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2021.120161
info:eu-repo/semantics/altIdentifier/issn/0376-7388
PID2019-107033GB-C22
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107033GB-C22
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Journal of Membrane Science, 2022, vol. 644, art.núm.120161
Articles publicats (D-Q)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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