Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation

This work studies the remediation of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes by electrochemical oxidation. DNAPL-saturated groundwater contains up to 26 chlorinated organic compounds (COCs), including different isomers of hexachlorocyclohexane...

Full description

Bibliographic Details
Authors: Herraiz Carboné, Miguel, Santos López, Aurora, Hayat, Ana, Domínguez Torre, Carmen María, Cotillas Soriano, Salvador
Format: article
Publication Date:2024
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/121302
Online Access:https://hdl.handle.net/20.500.14352/121302
Access Level:Open access
Keyword:66
DNAPL
Electrochemical oxidation
Lindane
BDD anode
Groundwater
Ingeniería química
3303 Ingeniería y Tecnología Químicas
id ES_198efe2d4c1e14b2b1964b8ceab0b79d
oai_identifier_str oai:docta.ucm.es:20.500.14352/121302
network_acronym_str ES
network_name_str España
repository_id_str
spelling Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidationHerraiz Carboné, MiguelSantos López, AuroraHayat, AnaDomínguez Torre, Carmen MaríaCotillas Soriano, Salvador66DNAPLElectrochemical oxidationLindaneBDD anodeGroundwaterIngeniería química3303 Ingeniería y Tecnología QuímicasThis work studies the remediation of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes by electrochemical oxidation. DNAPL-saturated groundwater contains up to 26 chlorinated organic compounds (COCs), including different isomers of hexachlorocyclohexane (HCH). To do this, polluted groundwater was electrolysed using boron-doped diamond (BDD) and stainless steel (SS) as anode and cathode, respectively, and the influence of the current density on COCs removal was evaluated in the range from 5 to 50 mA cm−2. Results show that current densities higher than 25 mA cm−2 lead to the complete removal and mineralisation of all COCs identified in groundwater. The higher the current density, the higher the COCs removal rate. At lower current densities (5 mA cm−2), chlorobenzenes were completely removed, and degradations above 90 % were reached for COCs with more than five chlorine atoms in their molecules. The use of BDD anodes promotes the electrochemical generation of powerful reactive species, such as persulfate, hypochlorite or hydroxyl radicals, that contribute to the degradation and mineralisation of COCs. The applied current density also influences the generation of these species. Finally, no acute toxicity towards Vibrio fischeri was observed for the treated groundwater after the electrochemical oxidation performed at 5 and 10 mA cm−2. These findings demonstrate that electrochemical oxidation with BDD anodes at moderate current densities is a promising alternative for the remediation of actual groundwater contaminated with DNAPLs.ElsevierUniversidad Complutense de Madrid20242024-05-0120242024-05-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/121302reponame: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:20.500.14352/1213022026-06-02T12:44:21Z
dc.title.none.fl_str_mv Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
title Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
spellingShingle Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
Herraiz Carboné, Miguel
66
DNAPL
Electrochemical oxidation
Lindane
BDD anode
Groundwater
Ingeniería química
3303 Ingeniería y Tecnología Químicas
title_short Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
title_full Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
title_fullStr Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
title_full_unstemmed Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
title_sort Remediation of groundwater polluted with lindane production wastes by conductive-diamond electrochemical oxidation
dc.creator.none.fl_str_mv Herraiz Carboné, Miguel
Santos López, Aurora
Hayat, Ana
Domínguez Torre, Carmen María
Cotillas Soriano, Salvador
author Herraiz Carboné, Miguel
author_facet Herraiz Carboné, Miguel
Santos López, Aurora
Hayat, Ana
Domínguez Torre, Carmen María
Cotillas Soriano, Salvador
author_role author
author2 Santos López, Aurora
Hayat, Ana
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
Electrochemical oxidation
Lindane
BDD anode
Groundwater
Ingeniería química
3303 Ingeniería y Tecnología Químicas
topic 66
DNAPL
Electrochemical oxidation
Lindane
BDD anode
Groundwater
Ingeniería química
3303 Ingeniería y Tecnología Químicas
description This work studies the remediation of groundwater saturated with dense non-aqueous phase liquid (DNAPL) from lindane production wastes by electrochemical oxidation. DNAPL-saturated groundwater contains up to 26 chlorinated organic compounds (COCs), including different isomers of hexachlorocyclohexane (HCH). To do this, polluted groundwater was electrolysed using boron-doped diamond (BDD) and stainless steel (SS) as anode and cathode, respectively, and the influence of the current density on COCs removal was evaluated in the range from 5 to 50 mA cm−2. Results show that current densities higher than 25 mA cm−2 lead to the complete removal and mineralisation of all COCs identified in groundwater. The higher the current density, the higher the COCs removal rate. At lower current densities (5 mA cm−2), chlorobenzenes were completely removed, and degradations above 90 % were reached for COCs with more than five chlorine atoms in their molecules. The use of BDD anodes promotes the electrochemical generation of powerful reactive species, such as persulfate, hypochlorite or hydroxyl radicals, that contribute to the degradation and mineralisation of COCs. The applied current density also influences the generation of these species. Finally, no acute toxicity towards Vibrio fischeri was observed for the treated groundwater after the electrochemical oxidation performed at 5 and 10 mA cm−2. These findings demonstrate that electrochemical oxidation with BDD anodes at moderate current densities is a promising alternative for the remediation of actual groundwater contaminated with DNAPLs.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-05-01
2024
2024-05-01
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/20.500.14352/121302
url https://hdl.handle.net/20.500.14352/121302
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_ 1869404053208825856
score 15,812429

Similar Items