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dc.contributor.authorGiannakis, Stefanos
dc.contributor.authorDarakas, Efthymios
dc.contributor.authorEscalas Cañellas, Antoni
dc.contributor.authorPulgarin, César
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationGiannakis, S., Darakas, E., Escalas-Cañellas, A., Pulgarin, C. Solar disinfection modeling and post-irradiation response of Escherichia coli in wastewater. "Chemical engineering journal", 01 Desembre 2015, p. 588-598.
dc.description.abstractIn this work, an intensive assessment of solar disinfection of secondary wastewater was elaborated in controlled laboratory conditions. Batch tests of Escherichia coli-spiked synthetic secondary effluent, at nine different constant intensity levels, were followed by a 48-h dark storage. Solar disinfection was monitored in half-hourly intervals demonstrating distinct phases of lag followed by sharp inactivation. The results were fit to a shoulder log-linear and a Weibull distribution model. The solar-driven inactivation, the latency period and the effective disinfection time (for 4-log reduction) were correlated properly with the applied irradiance, resulting in a common, standardized dose for all intensities. Evolution of bacterial response in the dark was monitored for 48 h, and was in each case characterized as growth or decay. Also, the energy threshold, which was able to shift post-irradiation behavior from growth to decay, was analytically studied. In all intensity levels, this standard was approximately constant, as an effective bacteriostatic dose (EBD). Finally, similar dose-related disinfection and regrowth effects were observed, suggesting compliance with the reciprocity law, with minor deviations
dc.format.extent11 p.
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshSolar energy
dc.subject.lcshEscherichia coli
dc.subject.otherSolar energy
dc.subject.otherE. coli
dc.subject.otherintensity vs. dose
dc.titleSolar disinfection modeling and post-irradiation response of Escherichia coli in wastewater
dc.subject.lemacEscherichia coli (Bacteri)
dc.subject.lemacEnergia solar -- Aplicacions
dc.subject.lemacAigües residuals -- Anàlisi
dc.subject.lemacAigües residuals -- Depuració
dc.contributor.groupUniversitat Politècnica de Catalunya. ENMA - Enginyeria del Medi Ambient
dc.rights.accessOpen Access
dc.description.versionPostprint (author’s final draft)
upcommons.citation.authorGiannakis, S., Darakas, E., Escalas-Cañellas, A., Pulgarin, C.
upcommons.citation.publicationNameChemical engineering journal

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