Water disinfection with UVC radiation and H2O2. A comparative study.
A generalized kinetic model resulting from several modifications of the one originally known as the Series Event Model has been applied to describe three different disinfection processes and compare their efficiencies. The work was performed in a well-defined, versatile batch reactor employing Escherichia coli as a subrogate bacteria. The following systems were studied: (i) UVC radiation alone, (ii) hydrogen peroxide alone and (iii) UVC radiation combined with hydrogen peroxide. The kinetic parameters of the three models were determined. Within the range of studied operating conditions, the use of UVC alone has shown to produce the best results.
Universidad Nacional del Litoral and CONICET, Güemes 3450, Santa Fe, Argentina. mlabas@santafe-conicet.gov.ar
Marisol Daniela
MD
Labas
Rodolfo Juan
RJ
Brandi
Cristina Susana
CS
Zalazar
Alberto Enrique
AE
Cassano
D004203:Disinfection / Q000379:methods*; D004926:Escherichia coli / Q000187:drug effects; D006861:Hydrogen Peroxide / Q000737:chemistry* / Q000494:pharmacology; D016877:Oxidants / Q000494:pharmacology; D014466:Ultraviolet Rays; D018508:Water Purification / Q000379:methods*
D016877:Oxidants; D006861:Hydrogen Peroxide