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Aplicação de radiação UV artificial e solar no tratamento fotocatalítico de efluentes de curtume

Salomão de Andrade Pascoal, Carlos Antônio Pereira de Lima, José Tavares de Sousa, Geralda Gilvania Cavalcante de Lima, Fernando Fernandes Vieira
2007 Química Nova  
Recebido em 18/1/06; aceito em 15/1/07; publicado na web em 17/7/07 APPLICATION OF ARTIFICIAL AND SOLAR UV RADIATION IN THE PHOTOCATALYTIC TREATMENT OF A TANNERY EFFLUENT. Tannery effluents are very dangerous for the environment since they contain large amounts of dangerous and biorecalcitrant contaminants (organic matter and Cr(VI)). This paper reports the efficiency of heterogeneous photocatalysis, based on the application of solar and artificial radiation, furnished by UV lamps, using TiO 2
more » ... lamps, using TiO 2 fixed on a flat plate, in the treatment of synthetic effluents. The results of COD and Cr(VI) demonstrate that the use of solar radiation is the most efficient way to perform the photocatalytic treatment of these effluents since a minimum removal of 62 and 61% was observed for Cr(VI) and organic matter, respectively.
doi:10.1590/s0100-40422007000500006 fatcat:h5q7fdmsjrdptd5ts5vtflooge