Abstract
The degradation and decolorization of direct dye (Everdirect supra turquoise blue FBL), acidic dye (Isolan orange S-RL) and vat dye (Indanthrene red FBB) have been investigated by Fenton and UV/Fenton processes. The effects of solution pH, Fe2+ dosages and H2O2 dosages have been studied by jar-test experiments. A comparative study for Fenton and UV/Fenton reactions by photoreactor has also been carried out by scale-up the optimum conditions, obtained through jar-test experiments. Fenton process is highly efficient for color removal for three dyes tested and for TOC removal of FBB and FBL. UV/Fenton showed slighter increase in treatment efficiency than that of Fenton process for both FBB and FBL dye solutions. S-RL improved much more TOC removal% by UV-irradiation. Sludge productions were compared for FeCl3-, FeSO4-coagulation and Fenton reaction in order to prove the dual role of FeSO4 in Fenton process. © 2005 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | Dyes and Pigments |
| Volume | 73 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2007 |
Keywords
- AOP (Advanced oxidation process)
- Fenton process
- Free radicals
- Photo-Fenton process
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