Nitrate electro-bioremediation and water disinfection for rural areas

Nitrate-contaminated groundwater is a pressing issue in rural areas, where up to 40 % of the population lacks access to safely managed drinking water services. The high costs and complexity of centralised treatment in these regions exacerbate this problem. To address this challenge, the present stud...

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Autores: Ceballos-Escalera, Alba, Pous Rodríguez, Narcís, Balaguer i Condom, Maria Dolors, Puig Broch, Sebastià
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/24657
Acceso en línea:http://hdl.handle.net/10256/24657
Access Level:acceso abierto
Palabra clave:Water treatment
Bioelectroquímica
Bioelectrochemistry
Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Desnitrificació
Denitrification
Bioremediació
Bioremediation
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spelling Nitrate electro-bioremediation and water disinfection for rural areasCeballos-Escalera, AlbaPous Rodríguez, NarcísBalaguer i Condom, Maria DolorsPuig Broch, SebastiàWater treatmentBioelectroquímicaBioelectrochemistryAigües subterrànies -- ContaminacióGroundwater -- PollutionDesnitrificacióDenitrificationBioremediacióBioremediationNitrate-contaminated groundwater is a pressing issue in rural areas, where up to 40 % of the population lacks access to safely managed drinking water services. The high costs and complexity of centralised treatment in these regions exacerbate this problem. To address this challenge, the present study proposes electro-bioremediation as a more accessible decentralised alternative. Specifically, the main focus of this study is developing and evaluating a compact reactor designed to accomplish simultaneous nitrate removal and groundwater disinfection. Significantly, this study has established a new benchmark for nitrate reduction rate within bioelectrochemical reactors, achieving the maximum reported rate of 5.0 ± 0.3 kg NO3− m−3NCC d−1 at an HRTcat of 0.7 h. Furthermore, thein-situ generation of free chlorine was effective for water disinfection, resulting in a residual concentration of up to 4.4 ± 1.1 mg Cl2 L−1 in the effluent at the same HRTcat of 0.7 h. These achievements enabled the treated water to meet the drinking water standards for nitrogen compounds (nitrate, nitrite, and nitrous oxide) as well as pathogens content (T. coliforms, E. coli, and Enterococcus). In conclusion, this study demonstrates the potential of the electro-bioremediation of nitrate-contaminated groundwater as a decentralised water treatment system in rural areas with a competitive operational cost of 1.05 ± 0.16 € m−3This work was funded through the European Union's Horizon 2020 project ELECTRA [no. 826244]. A.C-E. was supported by a PhD grant from the University of Girona (IF_UDG 2020). S.P. is a Serra Hunter Fellow (UdG-AG-575) and acknowledges the funding from the ICREA Academia award. LEQUIA has been recognised as a consolidated research group by the Catalan Government (2017-SGR-1552)Open Access funding provided thanks to the CRUE-CSIC agreement with Elsevier6Elsevier2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/24657Chemosphere, 2024, vol. 352, art. núm. 141370Articles publicats (D-EQATA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2024.141370info:eu-repo/semantics/altIdentifier/issn/0045-6535info:eu-repo/semantics/altIdentifier/eissn/1879-1298Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/246572026-05-29T05:05:01Z
dc.title.none.fl_str_mv Nitrate electro-bioremediation and water disinfection for rural areas
title Nitrate electro-bioremediation and water disinfection for rural areas
spellingShingle Nitrate electro-bioremediation and water disinfection for rural areas
Ceballos-Escalera, Alba
Water treatment
Bioelectroquímica
Bioelectrochemistry
Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Desnitrificació
Denitrification
Bioremediació
Bioremediation
title_short Nitrate electro-bioremediation and water disinfection for rural areas
title_full Nitrate electro-bioremediation and water disinfection for rural areas
title_fullStr Nitrate electro-bioremediation and water disinfection for rural areas
title_full_unstemmed Nitrate electro-bioremediation and water disinfection for rural areas
title_sort Nitrate electro-bioremediation and water disinfection for rural areas
dc.creator.none.fl_str_mv Ceballos-Escalera, Alba
Pous Rodríguez, Narcís
Balaguer i Condom, Maria Dolors
Puig Broch, Sebastià
author Ceballos-Escalera, Alba
author_facet Ceballos-Escalera, Alba
Pous Rodríguez, Narcís
Balaguer i Condom, Maria Dolors
Puig Broch, Sebastià
author_role author
author2 Pous Rodríguez, Narcís
Balaguer i Condom, Maria Dolors
Puig Broch, Sebastià
author2_role author
author
author
dc.subject.none.fl_str_mv Water treatment
Bioelectroquímica
Bioelectrochemistry
Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Desnitrificació
Denitrification
Bioremediació
Bioremediation
topic Water treatment
Bioelectroquímica
Bioelectrochemistry
Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Desnitrificació
Denitrification
Bioremediació
Bioremediation
description Nitrate-contaminated groundwater is a pressing issue in rural areas, where up to 40 % of the population lacks access to safely managed drinking water services. The high costs and complexity of centralised treatment in these regions exacerbate this problem. To address this challenge, the present study proposes electro-bioremediation as a more accessible decentralised alternative. Specifically, the main focus of this study is developing and evaluating a compact reactor designed to accomplish simultaneous nitrate removal and groundwater disinfection. Significantly, this study has established a new benchmark for nitrate reduction rate within bioelectrochemical reactors, achieving the maximum reported rate of 5.0 ± 0.3 kg NO3− m−3NCC d−1 at an HRTcat of 0.7 h. Furthermore, thein-situ generation of free chlorine was effective for water disinfection, resulting in a residual concentration of up to 4.4 ± 1.1 mg Cl2 L−1 in the effluent at the same HRTcat of 0.7 h. These achievements enabled the treated water to meet the drinking water standards for nitrogen compounds (nitrate, nitrite, and nitrous oxide) as well as pathogens content (T. coliforms, E. coli, and Enterococcus). In conclusion, this study demonstrates the potential of the electro-bioremediation of nitrate-contaminated groundwater as a decentralised water treatment system in rural areas with a competitive operational cost of 1.05 ± 0.16 € m−3
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/24657
url http://hdl.handle.net/10256/24657
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2024.141370
info:eu-repo/semantics/altIdentifier/issn/0045-6535
info:eu-repo/semantics/altIdentifier/eissn/1879-1298
dc.rights.none.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/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 Chemosphere, 2024, vol. 352, art. núm. 141370
Articles publicats (D-EQATA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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