Comparison of the TiO2 and Fe Cl3 treatments for waste waters with textile dye
Journal Title: Revista Lasallista de Investigación - Year 2007, Vol 3, Issue 2
Abstract
Introduction. This work exposes the experiment made with the Recoltive red dye with titanium dioxide, peroxide and fenton, using as a mean the UV lamp. The rehearsals made required variations of the quantity of these oxidants. Objective. To compare the treatments with titanium dioxide and fenton for waste waters with dye. Materials and methods. The equipment used included a glass bucket 41cm x 25,5 x 20 cm measures in which there was 15 L of the simple. A UV Mighty Pure lamp of 60 Hz and a bomb with a flux of 0,047 L/s. The dye was conditioned in the tank, and its final concentration was 00 Mg/L . The Ph was constantly measured to be adjusted in 5 when fenton was used and with TiO2 the Ph values were measured without adding acids or bases, because the stability is higher. Results. The best combination to treat water from the textile industry with an UV lamp and titanium dioxide is 100 mg/L of TiO2 and 2% v/v of H2O2. The rehearsal that showed an optimal degradation of the colour with fenton was that of 30mg/L of FeCl3 and 1 of v/v of H2O2. Conclusions. The use of advanced oxidation processes as, for instance, photocatalysis with TiO2 or photofenton, gave different results concerning the reduction of the degradation percentage of the dye and higher speeds of reaction, being the reaction of photofenton the one with the highest values and reaction times (E13 with 30 mg/L FeCl3 and 1%v/v of H2O2).
Authors and Affiliations
Luís Fernando Garcés Giraldo
Keywords
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