Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems

Producción Científica

Detalles Bibliográficos
Autores: Torres Franco, Andrés Felipe, Leroy Freitas, Deborah, Martínez Fraile, Cristina, Rodríguez, Elisa, García Encina, Pedro Antonio, Muñoz Torre, Raúl
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2024
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:dnet:uvadoc______::8b0541f2c3cf7f0ea2355c1a84b17b70
Acceso en línea:https://doi.org/10.1016/j.watres.2023.120834
https://uvadoc.uva.es/handle/10324/84871
Access Level:acceso abierto
Palabra clave:Activated sludge
Anaerobic treatment
Bacteriophages
Microalgae-based treatmen
Virus inactivation
Virus surrogates
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spelling Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systemsTorres Franco, Andrés FelipeLeroy Freitas, DeborahMartínez Fraile, CristinaRodríguez, ElisaGarcía Encina, Pedro AntonioMuñoz Torre, RaúlActivated sludgeAnaerobic treatmentBacteriophagesMicroalgae-based treatmenVirus inactivationVirus surrogatesProducción CientíficaAnaerobic and microalgae-based technologies for municipal wastewater treatment have emerged as sustainable alternatives to activated sludge systems. However, viruses are a major sanitary concern for reuse applications of liquid and solid byproducts from these technologies. To assess their capacity to reduce viruses during secondary wastewater treatment, enveloped Phi6 and nonenveloped MS2 bacteriophages, typically used as surrogates of several types of wastewater viruses, were spiked into batch bioreactors treating synthetic municipal wastewater (SMWW). The decay of Phi6 and MS2 in anaerobic and microalgae-based reactors was compared with the decay in activated sludge batch reactors for 96 h (Phi6) and 144 h (MS2). In each reactor, bacteriophages in the soluble and solids fractions were titered, allowing the assessment of virus partitioning to biomass over time. Moreover, the influence of abiotic conditions such as agitation, oxygen absence and light excess in activated sludge, anaerobic and microalgae reactors, respectively, was assessed using dedicated SMWW control reactors. All technologies showed Phi6 and MS2 reductions. Phi6 was reduced in at least 4.7 to 6.5 log10 units, with 0 h concentrations ranging from 5.0 to 6.5 log10 PFU mL−1. Similarly, reductions achieved for MS2 were of at least 3.9 to 7.2 log10 units, from starting concentrations of 8.0 to 8.6 log10 PFU mL−1. Log-logistic models adjusted to bacteriophages’ decay indicated T90 values in activated sludge and microalgae reactors of 2.2 and 7.9 h for Phi6 and of 1.0 and 11.5 h for MS2, respectively, all within typical hydraulic retention times (HRT) of full-scale operation. In the case of the microalgae technology, T99 values for Phi6 and MS2 of 12.7 h and 13.6 h were also lower than typical operating HRTs (2–10 d), while activated sludge and anaerobic treatment achieved less than 99 % of Phi6 and 50 % of MS2 inactivation within 12 h of typical HRT, respectively. Thus, the microalgae-based treatment exhibited a higher potential to reduce the disinfection requirements of treated wastewater.Junta de Castilla y León Regional Grant VA266P20Junta de Castilla y León, programa EU-FEDER (CLU 217-09)Elsevier2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttps://doi.org/10.1016/j.watres.2023.120834https://uvadoc.uva.es/handle/10324/84871reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://www.sciencedirect.com/science/article/pii/S0043135423012745?via%3Dihub#gs0001info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:dnet:uvadoc______::8b0541f2c3cf7f0ea2355c1a84b17b702026-06-13T12:44:47Z
dc.title.none.fl_str_mv Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
title Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
spellingShingle Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
Torres Franco, Andrés Felipe
Activated sludge
Anaerobic treatment
Bacteriophages
Microalgae-based treatmen
Virus inactivation
Virus surrogates
title_short Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
title_full Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
title_fullStr Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
title_full_unstemmed Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
title_sort Partitioning and inactivation of enveloped and nonenveloped viruses in activated sludge, anaerobic and microalgae-based wastewater treatment systems
dc.creator.none.fl_str_mv Torres Franco, Andrés Felipe
Leroy Freitas, Deborah
Martínez Fraile, Cristina
Rodríguez, Elisa
García Encina, Pedro Antonio
Muñoz Torre, Raúl
author Torres Franco, Andrés Felipe
author_facet Torres Franco, Andrés Felipe
Leroy Freitas, Deborah
Martínez Fraile, Cristina
Rodríguez, Elisa
García Encina, Pedro Antonio
Muñoz Torre, Raúl
author_role author
author2 Leroy Freitas, Deborah
Martínez Fraile, Cristina
Rodríguez, Elisa
García Encina, Pedro Antonio
Muñoz Torre, Raúl
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Activated sludge
Anaerobic treatment
Bacteriophages
Microalgae-based treatmen
Virus inactivation
Virus surrogates
topic Activated sludge
Anaerobic treatment
Bacteriophages
Microalgae-based treatmen
Virus inactivation
Virus surrogates
description Producción Científica
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.watres.2023.120834
https://uvadoc.uva.es/handle/10324/84871
url https://doi.org/10.1016/j.watres.2023.120834
https://uvadoc.uva.es/handle/10324/84871
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0043135423012745?via%3Dihub#gs0001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
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:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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