Electro-bioremediation at the prototype scale: what it should be learned for the scale-up

A large scale electro-bioremediation test is carried out in a prototype composed by an electrokinetic soil remediation reactor with soil-treatment capacity of 32 m3. Soil polluted with a mixture of Oxyfluorfen and 2,4-Dichlorophenoxyacetic acid undergoes a combined treatment in which the electrochem...

Descripción completa

Detalles Bibliográficos
Autores: Barba Piedrabuena, Silvia, López-Vizcaíno López, Rubén, Sáez Jiménez, Cristina, Villaseñor Camacho, José, Cañizares Cañizares, Pablo
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/17771
Acceso en línea:http://hdl.handle.net/10578/17771
Access Level:acceso abierto
Palabra clave:Scale-up
Full scale
Soil remediation
Electro-bioremediation
Electrokinetic
id ES_52a80f6c16cd9edeee2a466e02dbf9e6
oai_identifier_str oai:ruidera.uclm.es:10578/17771
network_acronym_str ES
network_name_str España
repository_id_str
spelling Electro-bioremediation at the prototype scale: what it should be learned for the scale-upBarba Piedrabuena, SilviaLópez-Vizcaíno López, RubénSáez Jiménez, CristinaVillaseñor Camacho, JoséCañizares Cañizares, PabloScale-upFull scaleSoil remediationElectro-bioremediationElectrokineticA large scale electro-bioremediation test is carried out in a prototype composed by an electrokinetic soil remediation reactor with soil-treatment capacity of 32 m3. Soil polluted with a mixture of Oxyfluorfen and 2,4-Dichlorophenoxyacetic acid undergoes a combined treatment in which the electrochemically assisted remediation produced by six electrodes placed in a hexagonal alternating configuration is aimed to be enhanced with the addition of concentrated activated sludge in a central position of the prototype. Results demonstrate that this technology can remove pollutants down to a very low concentration although, as compared to a previous study, its performance does not differ significantly of that followed in a process in which bioremediation was not included. In both studies, volatilization was found to be the key mechanisms to explain the removal of both herbicides. After a treatment period slightly over month, only 7.10% of the 2,4-D and 9.22% of the oxyfluorfen remained in soil and these values are very similar to those obtained by applying a non biological electrokinetic remediation fence process in which 10.10% of the 2,4-D and 13.03% of the oxyfluorfen remained in the soil after the treatment. Results pointed out that it is very difficult to optimize simultaneously electrokinetic and biological processes because most of the processes caused by the electric field affect negatively to the microorganisms viability. Results also pointed out the significance of the sampling procedure to characterize an electro-bioremediation process at full scale.ELSEVIER201820182018info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/17771reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/177712026-05-27T07:36:41Z
dc.title.none.fl_str_mv Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
title Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
spellingShingle Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
Barba Piedrabuena, Silvia
Scale-up
Full scale
Soil remediation
Electro-bioremediation
Electrokinetic
title_short Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
title_full Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
title_fullStr Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
title_full_unstemmed Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
title_sort Electro-bioremediation at the prototype scale: what it should be learned for the scale-up
dc.creator.none.fl_str_mv Barba Piedrabuena, Silvia
López-Vizcaíno López, Rubén
Sáez Jiménez, Cristina
Villaseñor Camacho, José
Cañizares Cañizares, Pablo
author Barba Piedrabuena, Silvia
author_facet Barba Piedrabuena, Silvia
López-Vizcaíno López, Rubén
Sáez Jiménez, Cristina
Villaseñor Camacho, José
Cañizares Cañizares, Pablo
author_role author
author2 López-Vizcaíno López, Rubén
Sáez Jiménez, Cristina
Villaseñor Camacho, José
Cañizares Cañizares, Pablo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Scale-up
Full scale
Soil remediation
Electro-bioremediation
Electrokinetic
topic Scale-up
Full scale
Soil remediation
Electro-bioremediation
Electrokinetic
description A large scale electro-bioremediation test is carried out in a prototype composed by an electrokinetic soil remediation reactor with soil-treatment capacity of 32 m3. Soil polluted with a mixture of Oxyfluorfen and 2,4-Dichlorophenoxyacetic acid undergoes a combined treatment in which the electrochemically assisted remediation produced by six electrodes placed in a hexagonal alternating configuration is aimed to be enhanced with the addition of concentrated activated sludge in a central position of the prototype. Results demonstrate that this technology can remove pollutants down to a very low concentration although, as compared to a previous study, its performance does not differ significantly of that followed in a process in which bioremediation was not included. In both studies, volatilization was found to be the key mechanisms to explain the removal of both herbicides. After a treatment period slightly over month, only 7.10% of the 2,4-D and 9.22% of the oxyfluorfen remained in soil and these values are very similar to those obtained by applying a non biological electrokinetic remediation fence process in which 10.10% of the 2,4-D and 13.03% of the oxyfluorfen remained in the soil after the treatment. Results pointed out that it is very difficult to optimize simultaneously electrokinetic and biological processes because most of the processes caused by the electric field affect negatively to the microorganisms viability. Results also pointed out the significance of the sampling procedure to characterize an electro-bioremediation process at full scale.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/17771
url http://hdl.handle.net/10578/17771
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
repository.mail.fl_str_mv
_version_ 1869408063728910336
score 15,300724

Similares en LA Referencia