Water disinfection with UVC radiation and H2O2. A comparative study

Marisol Daniela Labas; Rodolfo Juan Brandi; Cristina Susana Zalazar; Alberto Enrique Cassano

doi:10.1039/B817480F

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Water disinfection with UVC radiation and H₂O₂. A comparative study†

Marisol Daniela Labas,^a Rodolfo Juan Brandi,^a Cristina Susana Zalazar^a and Alberto Enrique Cassano^a

Author affiliations

^a INTEC (Universidad Nacional del Litoral and CONICET), Güemes 3450, Santa Fe, Argentina
E-mail: mlabas@santafe-conicet.gov.ar
Fax: +54 (0)342 4511 087

Abstract

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.

This article is part of the themed collection: Solar chemistry and photocatalysis - environmental applications

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Article information

DOI: https://doi.org/10.1039/B817480F
Article type: Paper
Submitted: 07 Oct 2008
Accepted: 24 Feb 2009
First published: 10 Mar 2009

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Photochem. Photobiol. Sci., 2009,8, 670-676

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Water disinfection with UVC radiation and H₂O₂. A comparative study

M. D. Labas, R. J. Brandi, C. S. Zalazar and A. E. Cassano, Photochem. Photobiol. Sci., 2009, 8, 670 DOI: 10.1039/B817480F

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Photochemical & Photobiological Sciences