Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment

The aim of this study was to determine the viability of electrochemical oxidation to degrade and mineralize poly- and perfluoroalkyl substances (PFASs) in wastewaters from an industrial facility dedicated to the production of side-chain-fluorinated polymers and fluorotelomer-based products for fire-...

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Autores: Gómez Ruiz, Beatriz, Gómez Lavín, Sonia|||0000-0002-4355-8683, Diban Gómez, Nazely|||0000-0002-2636-6305, Boiteux, Virginie, Colin, Adeline, Dauchy, Xavier, Urtiaga Mendia, Ana María|||0000-0002-8189-9171
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/11108
Acceso en línea:http://hdl.handle.net/10902/11108
Access Level:acceso abierto
Palabra clave:Poly- and perfluoroalkyl substances (PFASs)
6:2 FTSA and 6:2 FTAB
Perfluorocarboxylic acids
Electrochemical oxidation
Boron doped diamond anode
Industrial wastewater
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spelling Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatmentGómez Ruiz, BeatrizGómez Lavín, Sonia|||0000-0002-4355-8683Diban Gómez, Nazely|||0000-0002-2636-6305Boiteux, VirginieColin, AdelineDauchy, XavierUrtiaga Mendia, Ana María|||0000-0002-8189-9171Poly- and perfluoroalkyl substances (PFASs)6:2 FTSA and 6:2 FTABPerfluorocarboxylic acidsElectrochemical oxidationBoron doped diamond anodeIndustrial wastewaterThe aim of this study was to determine the viability of electrochemical oxidation to degrade and mineralize poly- and perfluoroalkyl substances (PFASs) in wastewaters from an industrial facility dedicated to the production of side-chain-fluorinated polymers and fluorotelomer-based products for fire-fighting foams. 6:2 fluorotelomer sulfonamide alkylbetaine (6:2 FTAB, 1111 μg/L), 6:2 fluorotelomer sulfonic acid (6:2 FTSA, 242.5 μg/L) and 6:2 fluorotelomer sulfonamide propyl N,N dimethylamine (M4, 34.4 μg/L) were the most abundant PFASs in the industrial wastewater, that also contained perfluorocarboxylic acids (ΣPFCAs, 12.2 μg/L), high TOC and chloride as main anion. 2 L samples were treated in bench scale experiments performed at a current density of 50 mA/cm2, in a commercial cell equipped with a boron doped diamond (BDD) anode (70 cm2). 97.1% of the initial PFASs content was removed after 8 h of electrochemical treatment. Furthermore, the TOC removal (82.5%) and the fluoride release confirmed the PFASs mineralization. Based on the evolution of the different PFASs, electrochemical degradation pathways were proposed. Fluorotelomers sulfonamides 6:2 FTAB and M4 would be degraded into 6:2 FTSA, which conversely would give rise to PFHpA and preferentially PFHxA. The latter PFCAs were transformed into shorter-chain PFCAs, and eventually into CO2 and fluoride. The reported results support the technical viability of BDD electrooxidation for the treatment of PFASs in industrial wastewater.This work was supported by the Spanish Ministry of Economy and Competitiveness (CTM2013-44081-R and CTM2016-75509-R). B. Gomez also thanks the FPI postgraduate research grant (BES-2014-071045).Elsevier SequoiaUniversidad de Cantabria20172017-08-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/11108Journal of Electroanalytical Chemistry, 2017, 798, 51-57reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/111082026-06-02T12:39:31Z
dc.title.none.fl_str_mv Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
title Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
spellingShingle Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
Gómez Ruiz, Beatriz
Poly- and perfluoroalkyl substances (PFASs)
6:2 FTSA and 6:2 FTAB
Perfluorocarboxylic acids
Electrochemical oxidation
Boron doped diamond anode
Industrial wastewater
title_short Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
title_full Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
title_fullStr Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
title_full_unstemmed Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
title_sort Boron doped diamond electrooxidation of 6:2 fluorotelomers and perfluorocarboxylic acids. Application to industrial wastewaters treatment
dc.creator.none.fl_str_mv Gómez Ruiz, Beatriz
Gómez Lavín, Sonia|||0000-0002-4355-8683
Diban Gómez, Nazely|||0000-0002-2636-6305
Boiteux, Virginie
Colin, Adeline
Dauchy, Xavier
Urtiaga Mendia, Ana María|||0000-0002-8189-9171
author Gómez Ruiz, Beatriz
author_facet Gómez Ruiz, Beatriz
Gómez Lavín, Sonia|||0000-0002-4355-8683
Diban Gómez, Nazely|||0000-0002-2636-6305
Boiteux, Virginie
Colin, Adeline
Dauchy, Xavier
Urtiaga Mendia, Ana María|||0000-0002-8189-9171
author_role author
author2 Gómez Lavín, Sonia|||0000-0002-4355-8683
Diban Gómez, Nazely|||0000-0002-2636-6305
Boiteux, Virginie
Colin, Adeline
Dauchy, Xavier
Urtiaga Mendia, Ana María|||0000-0002-8189-9171
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Poly- and perfluoroalkyl substances (PFASs)
6:2 FTSA and 6:2 FTAB
Perfluorocarboxylic acids
Electrochemical oxidation
Boron doped diamond anode
Industrial wastewater
topic Poly- and perfluoroalkyl substances (PFASs)
6:2 FTSA and 6:2 FTAB
Perfluorocarboxylic acids
Electrochemical oxidation
Boron doped diamond anode
Industrial wastewater
description The aim of this study was to determine the viability of electrochemical oxidation to degrade and mineralize poly- and perfluoroalkyl substances (PFASs) in wastewaters from an industrial facility dedicated to the production of side-chain-fluorinated polymers and fluorotelomer-based products for fire-fighting foams. 6:2 fluorotelomer sulfonamide alkylbetaine (6:2 FTAB, 1111 μg/L), 6:2 fluorotelomer sulfonic acid (6:2 FTSA, 242.5 μg/L) and 6:2 fluorotelomer sulfonamide propyl N,N dimethylamine (M4, 34.4 μg/L) were the most abundant PFASs in the industrial wastewater, that also contained perfluorocarboxylic acids (ΣPFCAs, 12.2 μg/L), high TOC and chloride as main anion. 2 L samples were treated in bench scale experiments performed at a current density of 50 mA/cm2, in a commercial cell equipped with a boron doped diamond (BDD) anode (70 cm2). 97.1% of the initial PFASs content was removed after 8 h of electrochemical treatment. Furthermore, the TOC removal (82.5%) and the fluoride release confirmed the PFASs mineralization. Based on the evolution of the different PFASs, electrochemical degradation pathways were proposed. Fluorotelomers sulfonamides 6:2 FTAB and M4 would be degraded into 6:2 FTSA, which conversely would give rise to PFHpA and preferentially PFHxA. The latter PFCAs were transformed into shorter-chain PFCAs, and eventually into CO2 and fluoride. The reported results support the technical viability of BDD electrooxidation for the treatment of PFASs in industrial wastewater.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-08-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/11108
url http://hdl.handle.net/10902/11108
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Sequoia
publisher.none.fl_str_mv Elsevier Sequoia
dc.source.none.fl_str_mv Journal of Electroanalytical Chemistry, 2017, 798, 51-57
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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