Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment

Soil Aquifer Treatment (SAT) is used to increase groundwater resources and enhance the water quality of wastewater treatment plant (WWTP) effluents. The resulting water quality needs to be assessed. In this study, we investigate attenuation pathways of nitrogen (N) compounds (predominantly NH4+) fro...

Descripción completa

Detalles Bibliográficos
Autores: Abu, Alex, Carrey Labarta, Raúl, Valhondo, Cristina, Domènech Ortí, Cristina, Soler i Gil, Albert, Martínez-Landa, Lurdes, Silvia Diaz-Cruz, Carrera, Jesús, Otero Pérez, Neus
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/195841
Acceso en línea:https://hdl.handle.net/2445/195841
Access Level:acceso abierto
Palabra clave:Desnitrificació
Cicles biogeoquímics
Contaminació de l'aigua
Geologia isotòpica
Denitrification
Biogeochemical cycles
Water pollution
Isotope geology
id ES_577bba67ded97ebfc6a8eb6980185919
oai_identifier_str oai:diposit.ub.edu:2445/195841
network_acronym_str ES
network_name_str España
repository_id_str
spelling Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatmentAbu, AlexCarrey Labarta, RaúlValhondo, CristinaDomènech Ortí, CristinaSoler i Gil, AlbertMartínez-Landa, LurdesSilvia Diaz-CruzCarrera, JesúsOtero Pérez, NeusDesnitrificacióCicles biogeoquímicsContaminació de l'aiguaGeologia isotòpicaDenitrificationBiogeochemical cyclesWater pollutionIsotope geologySoil Aquifer Treatment (SAT) is used to increase groundwater resources and enhance the water quality of wastewater treatment plant (WWTP) effluents. The resulting water quality needs to be assessed. In this study, we investigate attenuation pathways of nitrogen (N) compounds (predominantly NH4+) from a secondary treatment effluent in pilot SAT systems: both a conventional one (SAT-Control system) and one operating with a permeable reactive barrier (PRB) to provide extra dissolved organic carbon to the recharged water. The goal is to evaluate the effectiveness of the two systems regarding N compounds by means of chemical and isotopic tools. Water chemistry (NO3-, NH4+, Non-Purgeable Dissolved Organic Carbon (NPDOC), and O2) and isotopic composition of NO3- (ẟ15N-NO3- and ẟ18O-NO3-) and NH4+ (ẟ15N-NH4+) were monitored in the inflow and at three different sections and depths along the aquifer flow path. Chemical and isotopic results suggest that coupled nitrification-denitrification were the principal mechanisms responsible for the migration and distribution of inorganic N in the systems and that nitrification rate decreased with depth. At the end of the study period, 66% of the total N in the solution was removed in the SAT-PRB system and 69% in the SAT-Control system, measured at the outlet of the systems. The residual N in solution in the SAT-PRB system had an approximately equal proportion of N-NH4+ and N-NO3- while in the SAT-Control system, the residual N in solution was primarily N-NO3-. Isotopic data also confirmed complete NO3- degradation in the systems from July to September with the possibility of mixing newly generated NO3- with the residual NO3- in the substrate pool.Elsevier2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/195841Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.jenvman.2022.115927Journal of Environmental Management, 2022, vol. 321, num. 115927https://doi.org/10.1016/j.jenvman.2022.115927cc-by (c) The Author(s), 2022http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1958412026-05-27T06:46:51Z
dc.title.none.fl_str_mv Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
title Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
spellingShingle Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
Abu, Alex
Desnitrificació
Cicles biogeoquímics
Contaminació de l'aigua
Geologia isotòpica
Denitrification
Biogeochemical cycles
Water pollution
Isotope geology
title_short Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
title_full Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
title_fullStr Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
title_full_unstemmed Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
title_sort Pathways and efficiency of nitrogen attenuation in wastewater effluent through soil aquifer treatment
dc.creator.none.fl_str_mv Abu, Alex
Carrey Labarta, Raúl
Valhondo, Cristina
Domènech Ortí, Cristina
Soler i Gil, Albert
Martínez-Landa, Lurdes
Silvia Diaz-Cruz
Carrera, Jesús
Otero Pérez, Neus
author Abu, Alex
author_facet Abu, Alex
Carrey Labarta, Raúl
Valhondo, Cristina
Domènech Ortí, Cristina
Soler i Gil, Albert
Martínez-Landa, Lurdes
Silvia Diaz-Cruz
Carrera, Jesús
Otero Pérez, Neus
author_role author
author2 Carrey Labarta, Raúl
Valhondo, Cristina
Domènech Ortí, Cristina
Soler i Gil, Albert
Martínez-Landa, Lurdes
Silvia Diaz-Cruz
Carrera, Jesús
Otero Pérez, Neus
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Desnitrificació
Cicles biogeoquímics
Contaminació de l'aigua
Geologia isotòpica
Denitrification
Biogeochemical cycles
Water pollution
Isotope geology
topic Desnitrificació
Cicles biogeoquímics
Contaminació de l'aigua
Geologia isotòpica
Denitrification
Biogeochemical cycles
Water pollution
Isotope geology
description Soil Aquifer Treatment (SAT) is used to increase groundwater resources and enhance the water quality of wastewater treatment plant (WWTP) effluents. The resulting water quality needs to be assessed. In this study, we investigate attenuation pathways of nitrogen (N) compounds (predominantly NH4+) from a secondary treatment effluent in pilot SAT systems: both a conventional one (SAT-Control system) and one operating with a permeable reactive barrier (PRB) to provide extra dissolved organic carbon to the recharged water. The goal is to evaluate the effectiveness of the two systems regarding N compounds by means of chemical and isotopic tools. Water chemistry (NO3-, NH4+, Non-Purgeable Dissolved Organic Carbon (NPDOC), and O2) and isotopic composition of NO3- (ẟ15N-NO3- and ẟ18O-NO3-) and NH4+ (ẟ15N-NH4+) were monitored in the inflow and at three different sections and depths along the aquifer flow path. Chemical and isotopic results suggest that coupled nitrification-denitrification were the principal mechanisms responsible for the migration and distribution of inorganic N in the systems and that nitrification rate decreased with depth. At the end of the study period, 66% of the total N in the solution was removed in the SAT-PRB system and 69% in the SAT-Control system, measured at the outlet of the systems. The residual N in solution in the SAT-PRB system had an approximately equal proportion of N-NH4+ and N-NO3- while in the SAT-Control system, the residual N in solution was primarily N-NO3-. Isotopic data also confirmed complete NO3- degradation in the systems from July to September with the possibility of mixing newly generated NO3- with the residual NO3- in the substrate pool.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/195841
url https://hdl.handle.net/2445/195841
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.jenvman.2022.115927
Journal of Environmental Management, 2022, vol. 321, num. 115927
https://doi.org/10.1016/j.jenvman.2022.115927
dc.rights.none.fl_str_mv cc-by (c) The Author(s), 2022
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) The Author(s), 2022
http://creativecommons.org/licenses/by/3.0/es/
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 Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408455036502016
score 15,300724

Similares en LA Referencia