Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes
This work describes the treatment of soil polluted with the herbicide pendimethalin by the combination of surfactant-aided soil-washing (SASW) and electrochemical advanced oxidation processes. Results show that it is possible to completely extract the herbicide from soil using SDS (sodium dodecyl su...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/17537 |
| Acceso en línea: | https://doi.org/10.1016/j.apcatb.2017.05.008 http://hdl.handle.net/10578/17537 |
| Access Level: | acceso abierto |
| Palabra clave: | surfactant-aided soil washing electrolysis pendimethalin diamond anodes photoelectrolysis sonoelectrolysis |
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Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodesAlmazán-Sánchez, Perla TatianaCotillas, SalvadorSáez Jiménez, CristinaSolache Ríos, Marcos JoséMartínez-Miranda, VerónicaCañizares Cañizares, PabloLinares-Hernández, IvonneRodrigo Rodrigo, Manuel Andréssurfactant-aided soil washingelectrolysispendimethalindiamond anodesphotoelectrolysissonoelectrolysisThis work describes the treatment of soil polluted with the herbicide pendimethalin by the combination of surfactant-aided soil-washing (SASW) and electrochemical advanced oxidation processes. Results show that it is possible to completely extract the herbicide from soil using SDS (sodium dodecyl sulfate) solutions as soil washing fluid (SWF) and ratios SWF/soil higher than 10 dm3 kg−1. Soil washing effluents obtained after the application of the SASW consisted of a mixture of surfactant (high concentration) and pesticide (low concentration) and their degradation by electrolysis, photo-assisted electrolysis (photoelectrolysis) and sonoelectrolysis with diamond anodes has been compared with that obtained by the application of single photolysis and sonolysis. Opposite to photolysis and sonolysis, the different electrolytic techniques allow decreasing the concentration of herbicide and surfactant in the effluents. Competition between the surfactant and the herbicide oxidation is important and irradiation of high-frequency ultrasound or UV light do not seem to outperform very importantly the results obtained by single electrolysis in the effluents of the SASW obtained with low SDS/soil ratios. Opposite, photoelectrolysis becomes the most efficient technology for the treatment of SWF obtained at high SDS/soil ratios (those required for an efficient SASW). Catalytic effect of the sulfate released during the degradation of SDS (in particular the formation of sulfate radicals) can help to explain the differences observed. The removal efficiency is higher during sonoelectrolysis, reaching a final removal of the pesticide after 8 h of treatment of 86.22%. Photoelectrolysis (57.59%) shows higher efficiencies for the removal of SDS followed by sonoelectrolysis (52.64%) and, finally, electrolysis (48.29%), after 8 h of treatment.ELSEVIER201820182017info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.apcatb.2017.05.008http://hdl.handle.net/10578/17537reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/175372026-05-27T07:36:41Z |
| dc.title.none.fl_str_mv |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| title |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| spellingShingle |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes Almazán-Sánchez, Perla Tatiana surfactant-aided soil washing electrolysis pendimethalin diamond anodes photoelectrolysis sonoelectrolysis |
| title_short |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| title_full |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| title_fullStr |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| title_full_unstemmed |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| title_sort |
Removal of pendimethalin from soil washing effluents using electrolytic and electro-irradiated technologies based on diamond anodes |
| dc.creator.none.fl_str_mv |
Almazán-Sánchez, Perla Tatiana Cotillas, Salvador Sáez Jiménez, Cristina Solache Ríos, Marcos José Martínez-Miranda, Verónica Cañizares Cañizares, Pablo Linares-Hernández, Ivonne Rodrigo Rodrigo, Manuel Andrés |
| author |
Almazán-Sánchez, Perla Tatiana |
| author_facet |
Almazán-Sánchez, Perla Tatiana Cotillas, Salvador Sáez Jiménez, Cristina Solache Ríos, Marcos José Martínez-Miranda, Verónica Cañizares Cañizares, Pablo Linares-Hernández, Ivonne Rodrigo Rodrigo, Manuel Andrés |
| author_role |
author |
| author2 |
Cotillas, Salvador Sáez Jiménez, Cristina Solache Ríos, Marcos José Martínez-Miranda, Verónica Cañizares Cañizares, Pablo Linares-Hernández, Ivonne Rodrigo Rodrigo, Manuel Andrés |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
surfactant-aided soil washing electrolysis pendimethalin diamond anodes photoelectrolysis sonoelectrolysis |
| topic |
surfactant-aided soil washing electrolysis pendimethalin diamond anodes photoelectrolysis sonoelectrolysis |
| description |
This work describes the treatment of soil polluted with the herbicide pendimethalin by the combination of surfactant-aided soil-washing (SASW) and electrochemical advanced oxidation processes. Results show that it is possible to completely extract the herbicide from soil using SDS (sodium dodecyl sulfate) solutions as soil washing fluid (SWF) and ratios SWF/soil higher than 10 dm3 kg−1. Soil washing effluents obtained after the application of the SASW consisted of a mixture of surfactant (high concentration) and pesticide (low concentration) and their degradation by electrolysis, photo-assisted electrolysis (photoelectrolysis) and sonoelectrolysis with diamond anodes has been compared with that obtained by the application of single photolysis and sonolysis. Opposite to photolysis and sonolysis, the different electrolytic techniques allow decreasing the concentration of herbicide and surfactant in the effluents. Competition between the surfactant and the herbicide oxidation is important and irradiation of high-frequency ultrasound or UV light do not seem to outperform very importantly the results obtained by single electrolysis in the effluents of the SASW obtained with low SDS/soil ratios. Opposite, photoelectrolysis becomes the most efficient technology for the treatment of SWF obtained at high SDS/soil ratios (those required for an efficient SASW). Catalytic effect of the sulfate released during the degradation of SDS (in particular the formation of sulfate radicals) can help to explain the differences observed. The removal efficiency is higher during sonoelectrolysis, reaching a final removal of the pesticide after 8 h of treatment of 86.22%. Photoelectrolysis (57.59%) shows higher efficiencies for the removal of SDS followed by sonoelectrolysis (52.64%) and, finally, electrolysis (48.29%), after 8 h of treatment. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 2018 2018 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://doi.org/10.1016/j.apcatb.2017.05.008 http://hdl.handle.net/10578/17537 |
| url |
https://doi.org/10.1016/j.apcatb.2017.05.008 http://hdl.handle.net/10578/17537 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
ELSEVIER |
| publisher.none.fl_str_mv |
ELSEVIER |
| dc.source.none.fl_str_mv |
reponame:RUIdeRA. Repositorio Institucional de la UCLM instname:Universidad de Castilla-La Mancha |
| instname_str |
Universidad de Castilla-La Mancha |
| reponame_str |
RUIdeRA. Repositorio Institucional de la UCLM |
| collection |
RUIdeRA. Repositorio Institucional de la UCLM |
| repository.name.fl_str_mv |
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| repository.mail.fl_str_mv |
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1869411728336355328 |
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15,300719 |