UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes

In this work, it is studied the treatment of soil polluted with oxyfluorfen by Surfactant-Aided Soil-Washing (SASW) and after that, photo-electrolysis was used for the treatment of the soil-washing fluid produced. This liquid waste is characterized by the high concentration of micelles of pesticide...

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Authors: Santos, Elisama Vieira dos, Sáez, Cristina, Cañizares, Pablo Canizares, Martínez-Huitle, Carlos Alberto, Rodrigo, Manuel Andres
Format: article
Status:Published version
Publication Date:2017
Country:Brasil
Institution:Universidade Federal do Rio Grande do Norte (UFRN)
Repository:Repositório Institucional da UFRN
Language:English
OAI Identifier:oai:repositorio.ufrn.br:123456789/29775
Online Access:https://repositorio.ufrn.br/jspui/handle/123456789/29775
Access Level:Open access
Keyword:Oxyfluorfen
Photolysis
Photo-electrolysis
Soil washing
Boron doped diamond
Electrolysis
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spelling UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastesOxyfluorfenPhotolysisPhoto-electrolysisSoil washingBoron doped diamondElectrolysisIn this work, it is studied the treatment of soil polluted with oxyfluorfen by Surfactant-Aided Soil-Washing (SASW) and after that, photo-electrolysis was used for the treatment of the soil-washing fluid produced. This liquid waste is characterized by the high concentration of micelles of pesticide and surfactant (sodium dodecyl sulfate, SDS), whose initial size depends on the ratio soil-surfactant used in the soil washing treatment. The waste treatment is studied in terms of the decrease in size of the particles and the depletion of the pollutants. Results clearly demonstrate that photo-electrolysis with diamond electrodes is a very effective treatment technology with results that overcome those obtained by single photolysis and/or single electrolysis with diamond electrodes. The greater improvements attained by combining UV irradiation to the electrolysis were observed in the removal of the pesticide while the removal of the surfactant was little affected. Electrolysis does not only deplete the complete concentration of pesticide but it also shows to be very efficient in the depletion of the surfactant, preventing its potential recycle. The significant concentration of sulfate released during the attack to the surfactant and the effect of the peroxosulfate anions that are formed from the anodic oxidation of that anion, explain the improved performance of the technology in the treatment of washing fluids with higher concentrations of SDSElsevier2020-08-03T19:14:36Z2020-08-03T19:14:36Z2017-06-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSANTOS, E.V.; SÁEZ, C.; CAÑIZARES, P. ; MARTÍNEZ-HUITLE, C.A.; RODRIGO, M.A.. UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes. Chemical Engineering Journal, v. 318, p. 2-9, 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1385894716302455?via%3Dihub#! Acesso em: 30 jul. 2020. https://doi.org/10.1016/j.cej.2016.03.0151385-8947https://repositorio.ufrn.br/jspui/handle/123456789/2977510.1016/j.cej.2016.03.015ark:/41046/001300001sg3dengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessSantos, Elisama Vieira dosSáez, CristinaCañizares, Pablo CanizaresMartínez-Huitle, Carlos AlbertoRodrigo, Manuel Andres2023-02-01T20:15:29Zoai:repositorio.ufrn.br:123456789/29775Repositório InstitucionalPUBhttp://repositorio.ufrn.br/oai/repositorio@bczm.ufrn.bropendoar:2023-02-01T20:15:29Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.none.fl_str_mv UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
title UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
spellingShingle UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
Santos, Elisama Vieira dos
Oxyfluorfen
Photolysis
Photo-electrolysis
Soil washing
Boron doped diamond
Electrolysis
title_short UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
title_full UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
title_fullStr UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
title_full_unstemmed UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
title_sort UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes
dc.creator.none.fl_str_mv Santos, Elisama Vieira dos
Sáez, Cristina
Cañizares, Pablo Canizares
Martínez-Huitle, Carlos Alberto
Rodrigo, Manuel Andres
author Santos, Elisama Vieira dos
author_facet Santos, Elisama Vieira dos
Sáez, Cristina
Cañizares, Pablo Canizares
Martínez-Huitle, Carlos Alberto
Rodrigo, Manuel Andres
author_role author
author2 Sáez, Cristina
Cañizares, Pablo Canizares
Martínez-Huitle, Carlos Alberto
Rodrigo, Manuel Andres
author2_role author
author
author
author
dc.subject.por.fl_str_mv Oxyfluorfen
Photolysis
Photo-electrolysis
Soil washing
Boron doped diamond
Electrolysis
topic Oxyfluorfen
Photolysis
Photo-electrolysis
Soil washing
Boron doped diamond
Electrolysis
description In this work, it is studied the treatment of soil polluted with oxyfluorfen by Surfactant-Aided Soil-Washing (SASW) and after that, photo-electrolysis was used for the treatment of the soil-washing fluid produced. This liquid waste is characterized by the high concentration of micelles of pesticide and surfactant (sodium dodecyl sulfate, SDS), whose initial size depends on the ratio soil-surfactant used in the soil washing treatment. The waste treatment is studied in terms of the decrease in size of the particles and the depletion of the pollutants. Results clearly demonstrate that photo-electrolysis with diamond electrodes is a very effective treatment technology with results that overcome those obtained by single photolysis and/or single electrolysis with diamond electrodes. The greater improvements attained by combining UV irradiation to the electrolysis were observed in the removal of the pesticide while the removal of the surfactant was little affected. Electrolysis does not only deplete the complete concentration of pesticide but it also shows to be very efficient in the depletion of the surfactant, preventing its potential recycle. The significant concentration of sulfate released during the attack to the surfactant and the effect of the peroxosulfate anions that are formed from the anodic oxidation of that anion, explain the improved performance of the technology in the treatment of washing fluids with higher concentrations of SDS
publishDate 2017
dc.date.none.fl_str_mv 2017-06-15
2020-08-03T19:14:36Z
2020-08-03T19:14:36Z
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 SANTOS, E.V.; SÁEZ, C.; CAÑIZARES, P. ; MARTÍNEZ-HUITLE, C.A.; RODRIGO, M.A.. UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes. Chemical Engineering Journal, v. 318, p. 2-9, 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1385894716302455?via%3Dihub#! Acesso em: 30 jul. 2020. https://doi.org/10.1016/j.cej.2016.03.015
1385-8947
https://repositorio.ufrn.br/jspui/handle/123456789/29775
10.1016/j.cej.2016.03.015
dc.identifier.dark.fl_str_mv ark:/41046/001300001sg3d
identifier_str_mv SANTOS, E.V.; SÁEZ, C.; CAÑIZARES, P. ; MARTÍNEZ-HUITLE, C.A.; RODRIGO, M.A.. UV assisted electrochemical technologies for the removal of oxyfluorfen from soil washing wastes. Chemical Engineering Journal, v. 318, p. 2-9, 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1385894716302455?via%3Dihub#! Acesso em: 30 jul. 2020. https://doi.org/10.1016/j.cej.2016.03.015
1385-8947
10.1016/j.cej.2016.03.015
ark:/41046/001300001sg3d
url https://repositorio.ufrn.br/jspui/handle/123456789/29775
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
institution UFRN
reponame_str Repositório Institucional da UFRN
collection Repositório Institucional da UFRN
repository.name.fl_str_mv Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)
repository.mail.fl_str_mv repositorio@bczm.ufrn.br
_version_ 1853668170200514560
score 15.301629

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