INVESTIGADORES
SATUF Maria Lucila
artículos
Título:
Kinetic modelling of Escherichia coli inactivation in a photocatalytic wall reactor
Autor/es:
MARUGÁN, J.; VAN GRIEKEN, R.; PABLOS, C.; SATUF, M. L.; CASSANO, A. E; ALFANO, O. M.
Revista:
CATALYSIS TODAY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 240 p. 9 - 15
ISSN:
0920-5861
Resumen:
A kinetic model of the photocatalytic inactivation of Escherichia coli in an annular wall reactor is presented. The model is based on a reaction scheme that involves a series of events in which bacteria are progressively damaged and eventually led to cell lysis. The model explicitly takes into account radiation absorption effects. Photocatalytic inactivation experiments were carried out in a photoreactor operated in a closed recirculating circuit with a reservoir tank and irradiated with a 6 W black light lamp situated in the axis of the reactor. Immobilization of TiO2 Aeroxide P25 has been carried out by the dip-coating procedure onto the inner-tube wall of the annular reactor. Experimental results for different TiO2 layer thicknesses were used to estimate the kinetic parameters of the model. Good agreement between model predictions and inactivation experiments was achieved in the whole range of TiO2 thicknesses studied.