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UVC inactivation of MS2-phage in drinking water – Modelling and field testing
dc.contributor.author | Baldasso V | |
dc.contributor.author | Lubarsky H | |
dc.contributor.author | Pichel N | |
dc.contributor.author | Turolla A | |
dc.contributor.author | Antonelli M | |
dc.contributor.author | Hincapie M | |
dc.contributor.author | Botero L | |
dc.contributor.author | Reygadas F | |
dc.contributor.author | Galdos-Balzategui A | |
dc.contributor.author | Byrne J.A | |
dc.contributor.author | Fernandez-Ibañez P. | |
dc.date.accessioned | 2022-09-14T14:34:20Z | |
dc.date.available | 2022-09-14T14:34:20Z | |
dc.date.created | 2021 | |
dc.identifier.issn | 431354 | |
dc.identifier.uri | http://hdl.handle.net/11407/7619 | |
dc.description | UVC disinfection has been recognised by the WHO as an effective disinfection treatment to provide decentralized potable water. Under real conditions there are still unknowns that limit this application including the influence of suspended solids and natural organic matter. This work aims to investigate the influence of two key parameters, suspended solids and natural organic matter, on the efficiency of UVC disinfection of surface water to achieve the drinking water quality requirements established by the WHO for point of use (POU) technologies. Kaolinite (turbidity agent) and humic acids (HA, model of organic matter) were used in a factorial design of experiments (Turbidity from 0 to 5 NTU, and HA from 0 to 3.5 mg/L) to investigate their effect on UVC inactivation of MS2 phage in surface water. A collimated beam (12 W) and a commercial UVC disinfection flow system (16 W) designed to provide drinking water at households were used. The UVC flow system both in the laboratory and in the field was able to achieve the reduction requirements established by WHO (LRV >3.5 for all tested conditions), confirming the good performance of the studied UVC disinfection system. The results found in the lab were used to establish a numerical model that predicts the disinfection rate constant as a function of water turbidity and transmittance at 254 nm (confidence level>95%). The model permitted to elucidate the critical effect of low concentrations of HA in reducing the inactivation rate by 40% for 3.5 mg/L-HA compared with 0, the non-significant detrimental effect of turbidity lower than 5 NTU, and the lack of synergistic effects between both parameters at these levels. The UVC flow system was also tested in the field, in Tzabalho, Chiapas (Mexico), and Antioquia (Colombia), with spiked MS2 into natural surface water. This investigation opens a potential application to monitor the performance of UVC systems with surface water by monitoring transmittance at 254 nm as a tool to control UVC domestic systems to deliver safe drinking water in a household without the need of expensive and laborious biological monitoring tools. © 2021 | eng |
dc.language.iso | eng | |
dc.publisher | Elsevier Ltd | |
dc.relation.isversionof | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112696534&doi=10.1016%2fj.watres.2021.117496&partnerID=40&md5=c83f133e1d2f9f445fc80fd2768a13cf | |
dc.source | Water Research | |
dc.title | UVC inactivation of MS2-phage in drinking water – Modelling and field testing | |
dc.type | Article | |
dc.rights.accessrights | info:eu-repo/semantics/restrictedAccess | |
dc.publisher.program | Ingeniería Ambiental | |
dc.type.spa | Artículo | |
dc.identifier.doi | 10.1016/j.watres.2021.117496 | |
dc.subject.keyword | Disinfection | eng |
dc.subject.keyword | Experimental factorial design | eng |
dc.subject.keyword | Humic acids | eng |
dc.subject.keyword | Kaolinite | eng |
dc.subject.keyword | MS2-bacteriophage | eng |
dc.relation.citationvolume | 203 | |
dc.publisher.faculty | Facultad de Ingenierías | |
dc.affiliation | Baldasso, V., Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), Piazza Leonardo da Vinci 32, Milano, 20133, Italy | |
dc.affiliation | Lubarsky, H., Nanotechnology and Integrated BioEngineering Centre, School of Engineering, Ulster University, Northern Ireland, BT37 0QB, United Kingdom | |
dc.affiliation | Pichel, N., Nanotechnology and Integrated BioEngineering Centre, School of Engineering, Ulster University, Northern Ireland, BT37 0QB, United Kingdom | |
dc.affiliation | Turolla, A., Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), Piazza Leonardo da Vinci 32, Milano, 20133, Italy | |
dc.affiliation | Antonelli, M., Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), Piazza Leonardo da Vinci 32, Milano, 20133, Italy | |
dc.affiliation | Hincapie, M., School of Engineering, University of Medellin, Ctra 87, 30-65, Medellin, 050026, Colombia | |
dc.affiliation | Botero, L., School of Engineering, University of Medellin, Ctra 87, 30-65, Medellin, 050026, Colombia | |
dc.affiliation | Reygadas, F., Fundación Cántaro Azul, Calzada Daniel Sarmiento 19, Los Alcanfores, 29246 San Cristóbal de las Casas, Chiapas, Mexico | |
dc.affiliation | Galdos-Balzategui, A., Fundación Cántaro Azul, Calzada Daniel Sarmiento 19, Los Alcanfores, 29246 San Cristóbal de las Casas, Chiapas, Mexico | |
dc.affiliation | Byrne, J.A., Nanotechnology and Integrated BioEngineering Centre, School of Engineering, Ulster University, Northern Ireland, BT37 0QB, United Kingdom | |
dc.affiliation | Fernandez-Ibañez, P., Nanotechnology and Integrated BioEngineering Centre, School of Engineering, Ulster University, Northern Ireland, BT37 0QB, United Kingdom | |
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dc.type.coar | http://purl.org/coar/resource_type/c_6501 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | |
dc.type.driver | info:eu-repo/semantics/article | |
dc.identifier.reponame | reponame:Repositorio Institucional Universidad de Medellín | |
dc.identifier.repourl | repourl:https://repository.udem.edu.co/ | |
dc.identifier.instname | instname:Universidad de Medellín |
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