Show simple item record

Emerging micropollutant oxidation during disinfection processes using UV-C, UC-C/H2O2, UV-A/TiO2 and UV-A/TiO2/H2O2

dc.contributor.authorMarugán, Javier
dc.contributor.authorPablos, Cristina
dc.contributor.authorGrieken, Rafael van
dc.contributor.authorSerrano, Elena
dc.identifier.citationEmerging micropollutant oxidation during disinfection processes using UV-C, UC-C/H2O2, UV-A/TiO2 and UV-A/TiO2/H2O2. Cristina Pablos, Javier Marugán, Rafael van Grieken, Elena Serrano Water Research 47 (2013)
dc.descriptionLínea Investigación: Línea 1. Procesos de depuración de aguas residualeses
dc.description.abstractRegeneration of wastewater treatment plant effluents constitutes a solution to increase the availability of water resources in arid regions. Water reuse legislation imposes an exhaustive control of the microbiological quality of water in the operation of disinfection tertiary treatments. Additionally, recent reports have paid increasing attention on emerging micropollutants with potential biological effects even at trace level concentration. This work focuses on the evaluation of several photochemical technologies as disinfection processes with the aim of simultaneously achieving bacterial inactivation and oxidation of pharmaceuticals as examples of emerging micropollutants typically present in water and widely studied in the literature. UV-C-based processes show a high efficiency to inactivate bacteria. However, the bacterial damages are reversible and only when using H2O2, bacteria reproduction is affected. Moreover, a complete elimination of pharmaceutical compounds was not achieved at the end of the inactivation process. In contrast, UV-A/TiO2 required a longer irradiation time to inactivate bacteria but pharmaceuticals were completely removed along the process. In addition, its oxidation mechanism, based on hydroxyl radicals (¿OH), leads to irreversible bacterial damages, not requiring of chemicals to avoid bacteria regrowth. For UV-A/TiO2/H2O2 process, the addition of H2O2 improved E. coli inactivation since the cell wall weakening, due to ¿OH attacks, allowed H2O2 to diffuse into the bacteria. However, a total elimination of the pharmaceuticals was not achieved during the inactivation
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectMedio Ambientees
dc.subjectEscherichia Colies
dc.subjectImmobilized TiO2es
dc.subjectWastewater Effluentses
dc.titleEmerging micropollutant oxidation during disinfection processes using UV-C, UC-C/H2O2, UV-A/TiO2 and UV-A/TiO2/H2O2es
dc.subject.unesco2390 Química Farmacéuticaes
dc.description.departamentoTecnología Química y Ambiental

Files in this item

This item appears in the following Collection(s)

Show simple item record

Atribución-NoComercial-SinDerivadas 3.0 EspañaExcept where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España