Coupled electrochemical processes for removing dye from soil and water

Detalhes bibliográficos
Autor(a) principal: da Silva Mendonça de Paiva, Suelya
Data de Publicação: 2018
Outros Autores: Da Silva, Iasmin Bezerra, de Moura Santos, Elaine Cristina Martins, Rocha, Ingrid Medeiros Veras, Martínez-Huitle, Carlos Alberto [UNESP], dos Santos, Elisama Vieira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1149/2.0391809jes
http://hdl.handle.net/11449/171156
Resumo: In this work, a coupled remediation approach is studied by using electrochemical technologies (electrokinetic remediation (ER) and after that, BDD-electrolysis) to remove an azo dye from soil and after that, the elimination of dye from generated effluents was also attained. ER experiments were carried out using graphite electrodes, by applying 1 V cm−1 for 14 d, investigating the use of solutions containing with 0.05 M of Na2SO4 and 0.05 M of sodium dodecyl sulfate (SDS) in the anodic and cathodic reservoirs, respectively. The results clearly indicated that SDS favors the elimination of organic pollutant from the soil, achieving 65%. However, the removal efficiency is increased (89%) when sodium sulfate solution was used as supporting electrolyte. The transport of organic compound in the soil from the cathode to anode reservoir was due to the electromigration phenomenon. Toxicity tests were performed to evaluate the reuse of the soil after remediation, then, the germination of sunflower seeds was carried out, achieving significant percentage of germination in central soil positions (65% and 92%). Finally, the effluent generated by ER was treated with BDD-electrolysis, obtaining complete discoloration after 80 min and a quasi-complete elimination of organic matter (more than 95%) after 120 min due to the contribution of persulfate (S2O8 2−) electrochemically generated at BDD anode.
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spelling Coupled electrochemical processes for removing dye from soil and waterIn this work, a coupled remediation approach is studied by using electrochemical technologies (electrokinetic remediation (ER) and after that, BDD-electrolysis) to remove an azo dye from soil and after that, the elimination of dye from generated effluents was also attained. ER experiments were carried out using graphite electrodes, by applying 1 V cm−1 for 14 d, investigating the use of solutions containing with 0.05 M of Na2SO4 and 0.05 M of sodium dodecyl sulfate (SDS) in the anodic and cathodic reservoirs, respectively. The results clearly indicated that SDS favors the elimination of organic pollutant from the soil, achieving 65%. However, the removal efficiency is increased (89%) when sodium sulfate solution was used as supporting electrolyte. The transport of organic compound in the soil from the cathode to anode reservoir was due to the electromigration phenomenon. Toxicity tests were performed to evaluate the reuse of the soil after remediation, then, the germination of sunflower seeds was carried out, achieving significant percentage of germination in central soil positions (65% and 92%). Finally, the effluent generated by ER was treated with BDD-electrolysis, obtaining complete discoloration after 80 min and a quasi-complete elimination of organic matter (more than 95%) after 120 min due to the contribution of persulfate (S2O8 2−) electrochemically generated at BDD anode.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)School of Science and Technology Federal University of Rio Grande do NorteInstitute of Chemistry Federal University of Rio Grande do NorteUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of ChemistryUnesp National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of ChemistryCNPq: 2014/50945-4CNPq: 430121/2016-4CNPq: 446846/2014-7Federal University of Rio Grande do NorteUniversidade Estadual Paulista (Unesp)da Silva Mendonça de Paiva, SuelyaDa Silva, Iasmin Bezerrade Moura Santos, Elaine Cristina MartinsRocha, Ingrid Medeiros VerasMartínez-Huitle, Carlos Alberto [UNESP]dos Santos, Elisama Vieira2018-12-11T16:54:08Z2018-12-11T16:54:08Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleE318-E324application/pdfhttp://dx.doi.org/10.1149/2.0391809jesJournal of the Electrochemical Society, v. 165, n. 9, p. E318-E324, 2018.1945-71110013-4651http://hdl.handle.net/11449/17115610.1149/2.0391809jes2-s2.0-850492334722-s2.0-85049233472.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Electrochemical Society1,267info:eu-repo/semantics/openAccess2023-11-15T06:15:02Zoai:repositorio.unesp.br:11449/171156Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:45:53.122311Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Coupled electrochemical processes for removing dye from soil and water
title Coupled electrochemical processes for removing dye from soil and water
spellingShingle Coupled electrochemical processes for removing dye from soil and water
da Silva Mendonça de Paiva, Suelya
title_short Coupled electrochemical processes for removing dye from soil and water
title_full Coupled electrochemical processes for removing dye from soil and water
title_fullStr Coupled electrochemical processes for removing dye from soil and water
title_full_unstemmed Coupled electrochemical processes for removing dye from soil and water
title_sort Coupled electrochemical processes for removing dye from soil and water
author da Silva Mendonça de Paiva, Suelya
author_facet da Silva Mendonça de Paiva, Suelya
Da Silva, Iasmin Bezerra
de Moura Santos, Elaine Cristina Martins
Rocha, Ingrid Medeiros Veras
Martínez-Huitle, Carlos Alberto [UNESP]
dos Santos, Elisama Vieira
author_role author
author2 Da Silva, Iasmin Bezerra
de Moura Santos, Elaine Cristina Martins
Rocha, Ingrid Medeiros Veras
Martínez-Huitle, Carlos Alberto [UNESP]
dos Santos, Elisama Vieira
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Federal University of Rio Grande do Norte
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv da Silva Mendonça de Paiva, Suelya
Da Silva, Iasmin Bezerra
de Moura Santos, Elaine Cristina Martins
Rocha, Ingrid Medeiros Veras
Martínez-Huitle, Carlos Alberto [UNESP]
dos Santos, Elisama Vieira
description In this work, a coupled remediation approach is studied by using electrochemical technologies (electrokinetic remediation (ER) and after that, BDD-electrolysis) to remove an azo dye from soil and after that, the elimination of dye from generated effluents was also attained. ER experiments were carried out using graphite electrodes, by applying 1 V cm−1 for 14 d, investigating the use of solutions containing with 0.05 M of Na2SO4 and 0.05 M of sodium dodecyl sulfate (SDS) in the anodic and cathodic reservoirs, respectively. The results clearly indicated that SDS favors the elimination of organic pollutant from the soil, achieving 65%. However, the removal efficiency is increased (89%) when sodium sulfate solution was used as supporting electrolyte. The transport of organic compound in the soil from the cathode to anode reservoir was due to the electromigration phenomenon. Toxicity tests were performed to evaluate the reuse of the soil after remediation, then, the germination of sunflower seeds was carried out, achieving significant percentage of germination in central soil positions (65% and 92%). Finally, the effluent generated by ER was treated with BDD-electrolysis, obtaining complete discoloration after 80 min and a quasi-complete elimination of organic matter (more than 95%) after 120 min due to the contribution of persulfate (S2O8 2−) electrochemically generated at BDD anode.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T16:54:08Z
2018-12-11T16:54:08Z
2018-01-01
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://dx.doi.org/10.1149/2.0391809jes
Journal of the Electrochemical Society, v. 165, n. 9, p. E318-E324, 2018.
1945-7111
0013-4651
http://hdl.handle.net/11449/171156
10.1149/2.0391809jes
2-s2.0-85049233472
2-s2.0-85049233472.pdf
url http://dx.doi.org/10.1149/2.0391809jes
http://hdl.handle.net/11449/171156
identifier_str_mv Journal of the Electrochemical Society, v. 165, n. 9, p. E318-E324, 2018.
1945-7111
0013-4651
10.1149/2.0391809jes
2-s2.0-85049233472
2-s2.0-85049233472.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Electrochemical Society
1,267
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv E318-E324
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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