Author(s)

L. Sepulveda, G. Ciftientes & P. Rios

Abstract

The objective of this paper is to study the use of I^Oz and UV to remove Terasil Blue, with view to process design. Terasil Blue is an Antraquinone-type colorant, with the C=O as the colouring group. Experiments were carried out in a photochemical quartz reactor, using a 150W mercury lamp as a UV source. Microdispersed Terasil Blue solutions, with initial concentration in the range 50-200 (mg/dnf), were treated with hydrogen peroxide (68-3420 (mM), in the presence of UV light, at 40°C, for around 40 min Experiments show that neither %(% nor UV light had any effect on Terasil Blue, when these are used on their own. However, joint HfeCVUV treatment effectively decomposes this organic compound, reaching final reductions in colour of up to 98%. Colorant decomposition by Ha

Keywords