Coupled electrochemical processes for removing dye from soil and water
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128855000481792 |