Servizio Comunitario di Informazione in materia di Ricerca e Sviluppo - CORDIS


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Project ID: ICA3-CT-2002-10016
Finanziato nell'ambito di: FP5-INCO 2
Paese: France

Study of disinfection by-product (DBP)

The disinfection of waters intended to human consumption consists above all in eliminating all pathogenic organisms that can affect public health. At the same time, formation of disinfection by-products (DBP) dangerous for health must be avoided. The aim of this work was to evaluate the potential formation of DBP during the dual photocatalysis-photosensitizing treatment. Taking into account principles of oxidation process, only bromate and organo-brominated compounds could be formed among the known DBP. In each studied cases (bromide in pure water, river water with naturally present bromide or river water spiked with bromide) never bromate and brominated organic compound were found in water after 3 to 7 hours of treatment on prototype (3 tubes of TiO2 supported on 1049 or 1048 Ahlstrom papers + 2 tubes of Ru strips), under artifical irradiation (> 350 nm) or sun light irradiation. However, it was observed sometimes a slight decreasing of bromide level in studied waters.


Bernard LEGUBE, (Head of unit)
Tel.: +33-5-49453917
Fax: +33-5-49453768