Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes

This work evaluates the electrolysis of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes using mixed metal oxide (MMO) anodes to remove 26 Chlorinated Organic Compounds (COCs). Synthetic groundwater saturated with DNAPL from an industrial landfill was...

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Detalles Bibliográficos
Autores: Herraiz Carboné, Miguel, Santos López, Aurora, Checa Fernández, Cristina Alicia, Domínguez Torre, Carmen María, Cotillas Soriano, Salvador
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/121303
Acceso en línea:https://hdl.handle.net/20.500.14352/121303
Access Level:acceso abierto
Palabra clave:66
DNAPL
Electrolysis
Lindane
MO anode
Groundwater remediation
Ingeniería química
3303 Ingeniería y Tecnología Químicas
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oai_identifier_str oai:docta.ucm.es:20.500.14352/121303
network_acronym_str ES
network_name_str España
repository_id_str
spelling Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodesHerraiz Carboné, MiguelSantos López, AuroraCheca Fernández, Cristina AliciaDomínguez Torre, Carmen MaríaCotillas Soriano, Salvador66DNAPLElectrolysisLindaneMO anodeGroundwater remediationIngeniería química3303 Ingeniería y Tecnología QuímicasThis work evaluates the electrolysis of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes using mixed metal oxide (MMO) anodes to remove 26 Chlorinated Organic Compounds (COCs). Synthetic groundwater saturated with DNAPL from an industrial landfill was employed, and the influence of the current density (5–50 mA cm−2) was studied. Results show that removing COCs from DNAPL-saturated groundwater in 300 min is possible, reaching a final conversion of 0.99 when current densities of 50 mA cm−2 are applied. Under these operating conditions, the mineralisation conversion achieved is above 0.80. Low molecular weight COCs are rapidly oxidised because the evaporation also contributes to decrease their concentration in groundwater. Chlorine-based electrogenerated oxidants are the main species responsible for the removal of COCs. Toxicity and biodegradability tests performed on treated groundwater reveal that EC50 increases above 65 %, and 100 % biodegradability is obtained. The highest energy efficiencies are obtained during the treatment at 5 mA cm−2 (over 0.03 m3 kW-1h−1 for all COCs) due to the minimisation of parallel oxidation reactions promoted at higher current densities.ElsevierUniversidad Complutense de Madrid20242024-04-0120242024-04-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/121303reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1213032026-06-02T12:44:21Z
dc.title.none.fl_str_mv Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
title Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
spellingShingle Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
Herraiz Carboné, Miguel
66
DNAPL
Electrolysis
Lindane
MO anode
Groundwater remediation
Ingeniería química
3303 Ingeniería y Tecnología Químicas
title_short Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
title_full Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
title_fullStr Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
title_full_unstemmed Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
title_sort Removal of organochlorine pollutants from DNAPL-saturated groundwater using electrolysis with MMO anodes
dc.creator.none.fl_str_mv Herraiz Carboné, Miguel
Santos López, Aurora
Checa Fernández, Cristina Alicia
Domínguez Torre, Carmen María
Cotillas Soriano, Salvador
author Herraiz Carboné, Miguel
author_facet Herraiz Carboné, Miguel
Santos López, Aurora
Checa Fernández, Cristina Alicia
Domínguez Torre, Carmen María
Cotillas Soriano, Salvador
author_role author
author2 Santos López, Aurora
Checa Fernández, Cristina Alicia
Domínguez Torre, Carmen María
Cotillas Soriano, Salvador
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 66
DNAPL
Electrolysis
Lindane
MO anode
Groundwater remediation
Ingeniería química
3303 Ingeniería y Tecnología Químicas
topic 66
DNAPL
Electrolysis
Lindane
MO anode
Groundwater remediation
Ingeniería química
3303 Ingeniería y Tecnología Químicas
description This work evaluates the electrolysis of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes using mixed metal oxide (MMO) anodes to remove 26 Chlorinated Organic Compounds (COCs). Synthetic groundwater saturated with DNAPL from an industrial landfill was employed, and the influence of the current density (5–50 mA cm−2) was studied. Results show that removing COCs from DNAPL-saturated groundwater in 300 min is possible, reaching a final conversion of 0.99 when current densities of 50 mA cm−2 are applied. Under these operating conditions, the mineralisation conversion achieved is above 0.80. Low molecular weight COCs are rapidly oxidised because the evaporation also contributes to decrease their concentration in groundwater. Chlorine-based electrogenerated oxidants are the main species responsible for the removal of COCs. Toxicity and biodegradability tests performed on treated groundwater reveal that EC50 increases above 65 %, and 100 % biodegradability is obtained. The highest energy efficiencies are obtained during the treatment at 5 mA cm−2 (over 0.03 m3 kW-1h−1 for all COCs) due to the minimisation of parallel oxidation reactions promoted at higher current densities.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-04-01
2024
2024-04-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/121303
url https://hdl.handle.net/20.500.14352/121303
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869402885902565376
score 15.81155

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