Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorVillar-Navarro, Elenaen_US
dc.contributor.authorLevchuk, Irinaen_US
dc.contributor.authorRueda-Márquez, Juan Joséen_US
dc.contributor.authorHomola, Tomášen_US
dc.contributor.authorMoriñigo, Miguel Ángelen_US
dc.contributor.authorVahala, Rikuen_US
dc.contributor.authorManzano, Manuelen_US
dc.contributor.departmentDepartment of Built Environmenten
dc.contributor.groupauthorWater and Environmental Engineeringen
dc.contributor.organizationUniversity of Cádizen_US
dc.contributor.organizationMasaryk Universityen_US
dc.contributor.organizationUniversity of Málagaen_US
dc.contributor.organizationUniversity of Eastern Finlanden_US
dc.date.accessioned2021-09-29T10:00:26Z
dc.date.available2021-09-29T10:00:26Z
dc.date.issued2021-10en_US
dc.descriptionFunding Information: This work was supported by a national research project (SUNRAS PROJECT, Project AGL2016-80507-R) funded by Ministerio de Economía y Competitividad (Plan Nacional de I + D + i (2013-2016). The research was also supported by a PIF contract (UCA/REC01VI/2017) funded by Vicerrectorado de Investigación of Universidad de Cádiz. D.Sc. Juan Jose Rueda-Marquez is grateful for financial support from Academy of Finland within the project ″Combination of Advanced Oxidation Processes and Photobiotreatment for Sustainable Resource Recovery and Wastewater Reuse″ (application number 322339). T. Homola acknowledges financial support by Czech Science Foundation project 19-14770Y and project LM2018097 funded by the Ministry of Education, Youth and Sports of the Czech Republic. Funding Information: This work was supported by a national research project (SUNRAS PROJECT, Project AGL2016-80507-R) funded by Ministerio de Econom?a y Competitividad (Plan Nacional de I + D + i (2013-2016). The research was also supported by a PIF contract (UCA/REC01VI/2017) funded by Vicerrectorado de Investigaci?n of Universidad de C?diz. D.Sc. Juan Jose Rueda-Marquez is grateful for financial support from Academy of Finland within the project ?Combination of Advanced Oxidation Processes and Photobiotreatment for Sustainable Resource Recovery and Wastewater Reuse? (application number 322339). T. Homola acknowledges financial support by Czech Science Foundation project 19-14770Y and project LM2018097 funded by the Ministry of Education, Youth and Sports of the Czech Republic. Publisher Copyright: © 2021
dc.description.abstractIn this work the effect of water temperature (6 ± 1 °C and 22 ± 1 °C) on inactivation of bacteria (104 –106 CFU mL−1; Pseudomonas spp., Aeromonas spp. and Enterobacter spp.) in simulated aquaculture streams (SAS) using UVA based advanced oxidation processes (AOP) (H2O2-assisted UVA; photocatalysis; H2O2-assisted photocatalysis) and solar driven AOPs (H2O2-assisted solar disinfection, SODIS) was studied. Efficiency at 22 °C in terms of inactivation rate was higher using H2O2-assisted photocatalysis (H2O2/UVA-TiO2/polysiloxane) > H2O2-assisted UVA disinfection (UVA/H2O2 – 10 mg L-1) > photocatalysis (UVA-TiO2/polysiloxane) > UVA disinfection. At low temperature (6 °C) the inactivation rate increased with SODIS/H2O2 > SODIS > H2O2-assisted UVA disinfection (UVA/H2O2 – 10 mg L-1) > H2O2-assisted photocatalysis (H2O2/UVA-TiO2/polysiloxane) > photocatalysis (UVA-TiO2/polysiloxane). The main results indicate that the inactivation rates increased when hydrogen peroxide (10 mg L-1) was used during H2O2-assisted UVA disinfection and photocatalysis. In addition, exposure of SAS to hydrogen peroxide for 24 h (in absence of light) at room temperature decreased the subsequent exposure UVA irradiation dose by almost four times. Drastic increase of inactivation rate was observed at low water temperature (6 ± 1 °C) when UVA- and solar-based AOPs were employed compared to 22 ± 1 °C. The treatment with SODIS proved to be more effective in Finland than in Spain. The effect of the low temperature (6 ± 1 °C) was proposed as a critical factor during UVA disinfection (UVA/H2O2 and photocatalysis) that can increase the disinfection rate constant (kmax) by 1.3–5.2 times, leading to a reduction of the treatment costs (€ m−3) by 1.3–3.3 times. The mechanism of observed enhanced disinfection at low water temperature (6 ± 1 °C) when natural solar light and UVA are employed as irradiation sources for UVA/H2O2 and photocatalytic bacteria inactivation was proposed. No regrowth was observed in case of H2O2-assisted AOPs.en
dc.description.versionPeer revieweden
dc.format.extent13
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationVillar-Navarro, E, Levchuk, I, Rueda-Márquez, J J, Homola, T, Moriñigo, M Á, Vahala, R & Manzano, M 2021, 'Inactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methods', Solar Energy, vol. 227, pp. 477-489. https://doi.org/10.1016/j.solener.2021.09.029en
dc.identifier.doi10.1016/j.solener.2021.09.029en_US
dc.identifier.issn0038-092X
dc.identifier.issn1471-1257
dc.identifier.otherPURE UUID: d7e5a503-513b-4889-a94f-be9099642254en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/d7e5a503-513b-4889-a94f-be9099642254en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85115152498&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/67752499/1_s2.0_S0038092X21007866_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/110198
dc.identifier.urnURN:NBN:fi:aalto-202109299398
dc.language.isoenen
dc.publisherElsevier
dc.relation.ispartofseriesSolar Energyen
dc.relation.ispartofseriesVolume 227, pp. 477-489en
dc.rightsopenAccessen
dc.subject.keywordAquaculture streamsen_US
dc.subject.keywordLow temperatureen_US
dc.subject.keywordSolar AOPsen_US
dc.subject.keywordUVA-based AOPsen_US
dc.titleInactivation of simulated aquaculture stream bacteria at low temperature using advanced UVA- and solar-based oxidation methodsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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