Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants

This study assessed the impact of electrical conductivity (EC) on the microeukaryotic community and pollutant removal efficiency in full-scale wastewater treatment plants (WWTPs) in Catalonia, Spain. Monthly samples from seven WWTPs (2010 2021) were collected, with microbial communities identified b...

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Autores: Moyano Salcedo, Alvaro Javier, Cañedo-Argüelles, Miguel, Kaushal Sujay S., Ciriero-Cebrián, Eva Maria, Pérez-Blanco, Adrià, Salvadó i Cabré, Humbert
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:dnet:recercat____::e52dbd9e5ac599486318c662cd3b9fbe
Acceso en línea:https://hdl.handle.net/2445/228904
Access Level:acceso abierto
Palabra clave:Salinitat
Ecologia microbiana
Plantes
Salinity
Microbial ecology
Plants
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spelling Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plantsMoyano Salcedo, Alvaro JavierCañedo-Argüelles, MiguelKaushal Sujay S.Ciriero-Cebrián, Eva MariaPérez-Blanco, AdriàSalvadó i Cabré, HumbertSalinitatEcologia microbianaPlantesSalinityMicrobial ecologyPlantsThis study assessed the impact of electrical conductivity (EC) on the microeukaryotic community and pollutant removal efficiency in full-scale wastewater treatment plants (WWTPs) in Catalonia, Spain. Monthly samples from seven WWTPs (2010 2021) were collected, with microbial communities identified by microscopy and effluent quality parameters measured. Linear mixed-effects models (LMER), indicator species analysis (IndVal), and structural equation modeling (SEM) were used to evaluate the effects of EC on WWTP operation and microbial communities. EC levels varied widely among WWTPs (800 to 15,000 μS cm1), with mean removal rates generally low, not exceeding 26 %. EC removal was inversely correlated with organic matter removal (p < 0.05). IndVal analysis revealed distinct microbial communities associated with each WWTPs along the EC gradient (e.g., Beggiatoa spp. and Epistylis sp. were associated with high and low EC, respectively). High EC and peaks negatively affected the abundance of certain microorganisms (e.g., Acineria uncinata) (p < 0.05). Ciliate genera were most affected by EC peaks, with different species showing different salinity tolerance ranges (e.g. Holophyra discolor was affected by EC > 3000 μS cm-1). Seasonal variations did not significantly alter community sensitivity to salinity (p > 0.05). LMER and SEM analyses revealed strong adverse effects of high EC and EC peaks on microbial diversity, richness, and the efficiency of organic matter and TKN removal (p < 0.05). This highlights the importance of monitoring and controlling EC levels in WWTP influent to maintain optimal treatment performance and the need for effective technologies or biological processes to mitigate saline discharges into rivers.2026202620242026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion12 p.application/pdfhttps://hdl.handle.net/2445/228904https://hdl.handle.net/2445/228904reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1016/j.jwpe.2024.1059742024, vol. 66, p. 1-12https://doi.org/10.1016/j.jwpe.2024.105974cc-by-nc-nd (c) Moyano Salcedo, A.J. et al., 2024http://creativecommons.org/licenses/by/4.0/https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:dnet:recercat____::e52dbd9e5ac599486318c662cd3b9fbe2026-05-29T05:05:01Z
dc.title.none.fl_str_mv Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
title Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
spellingShingle Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
Moyano Salcedo, Alvaro Javier
Salinitat
Ecologia microbiana
Plantes
Salinity
Microbial ecology
Plants
title_short Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
title_full Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
title_fullStr Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
title_full_unstemmed Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
title_sort Assessing the effects of salinity on microbial communities and pollutantremoval in urban wastewater treatment plants
dc.creator.none.fl_str_mv Moyano Salcedo, Alvaro Javier
Cañedo-Argüelles, Miguel
Kaushal Sujay S.
Ciriero-Cebrián, Eva Maria
Pérez-Blanco, Adrià
Salvadó i Cabré, Humbert
author Moyano Salcedo, Alvaro Javier
author_facet Moyano Salcedo, Alvaro Javier
Cañedo-Argüelles, Miguel
Kaushal Sujay S.
Ciriero-Cebrián, Eva Maria
Pérez-Blanco, Adrià
Salvadó i Cabré, Humbert
author_role author
author2 Cañedo-Argüelles, Miguel
Kaushal Sujay S.
Ciriero-Cebrián, Eva Maria
Pérez-Blanco, Adrià
Salvadó i Cabré, Humbert
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Salinitat
Ecologia microbiana
Plantes
Salinity
Microbial ecology
Plants
topic Salinitat
Ecologia microbiana
Plantes
Salinity
Microbial ecology
Plants
description This study assessed the impact of electrical conductivity (EC) on the microeukaryotic community and pollutant removal efficiency in full-scale wastewater treatment plants (WWTPs) in Catalonia, Spain. Monthly samples from seven WWTPs (2010 2021) were collected, with microbial communities identified by microscopy and effluent quality parameters measured. Linear mixed-effects models (LMER), indicator species analysis (IndVal), and structural equation modeling (SEM) were used to evaluate the effects of EC on WWTP operation and microbial communities. EC levels varied widely among WWTPs (800 to 15,000 μS cm1), with mean removal rates generally low, not exceeding 26 %. EC removal was inversely correlated with organic matter removal (p < 0.05). IndVal analysis revealed distinct microbial communities associated with each WWTPs along the EC gradient (e.g., Beggiatoa spp. and Epistylis sp. were associated with high and low EC, respectively). High EC and peaks negatively affected the abundance of certain microorganisms (e.g., Acineria uncinata) (p < 0.05). Ciliate genera were most affected by EC peaks, with different species showing different salinity tolerance ranges (e.g. Holophyra discolor was affected by EC > 3000 μS cm-1). Seasonal variations did not significantly alter community sensitivity to salinity (p > 0.05). LMER and SEM analyses revealed strong adverse effects of high EC and EC peaks on microbial diversity, richness, and the efficiency of organic matter and TKN removal (p < 0.05). This highlights the importance of monitoring and controlling EC levels in WWTP influent to maintain optimal treatment performance and the need for effective technologies or biological processes to mitigate saline discharges into rivers.
publishDate 2024
dc.date.none.fl_str_mv 2024
2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/228904
https://hdl.handle.net/2445/228904
url https://hdl.handle.net/2445/228904
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.jwpe.2024.105974
2024, vol. 66, p. 1-12
https://doi.org/10.1016/j.jwpe.2024.105974
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Moyano Salcedo, A.J. et al., 2024
http://creativecommons.org/licenses/by/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Moyano Salcedo, A.J. et al., 2024
http://creativecommons.org/licenses/by/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
application/pdf
dc.source.none.fl_str_mv 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 15.811543

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