Scaling-up of slurry reactors for the photocatalytic degradation of 4-chlorophenol

SATUF, M.L.; BRANDI, R.J.; CASSANO, A.E.; ALFANO, O.M.

Las Palmas de Gran Canaria, España

Congreso; 4th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications - SPEA4; 2006

Photocatalysis employing titanium dioxide (TiO2) has proven to be a useful method to decompose a large number of organic and inorganic water pollutants. In the present work, we study the degradation of 4-chlorophenol (4-CP) in aqueous solution using artificial UV light and TiO2 in suspension. A kinetic model for the degradation of 4-CP is proposed. The model involved the formation and disappearance of the main intermediate products, 4- chlorocatechol (4-CC) and hydroquinone (HQ). The kinetics expressions are validated in a larger reactor of different configuration.