Application of artificial and solar UV radiation in the photocatalytic treatment of a tannery effluent

被引:9
作者
Pascoal, Salomao de Andrade
Pereira de Lima, Carlos Antonio
de Sousa, Jose Tavares
Cavalcante de Lima, Geralda Gilvania
Vieira, Fernando Fernandes
机构
[1] Univ Estadual Paraiba, Univ Fed Paraiba, BR-58109790 Campina Grande, PB, Brazil
[2] Univ Estadual Paraiba, Ctr Ciencias & Tecnol, Dept Quim, BR-58109790 Campina Grande, PB, Brazil
来源
QUIMICA NOVA | 2007年 / 30卷 / 05期
关键词
heterogeneous photocatalysis; artificial radiation; solar radiation;
D O I
10.1590/S0100-40422007000500006
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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 TiO2 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.
引用
收藏
页码:1082 / 1087
页数:6
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