Removal of acid dyes by Fenton process

In this investigation Fenton process was applied to oxidize two commercial acid dyes, namely Acid Red 18, Acid Blue 62. This investigation reveals that this method can remove the color of these dyes completely. Moreover it only produces little sludge in wastewater that meet local effluent standards and do not need to further treat. The effects of Fe2+, H2O2 and solution pH on dye de-colorization are demonstrated in detail pHopt: 3.0 . Increasing the dose of FeSO4 enhances the dye de-colorization. The optimal levels of H2O2 required for the process are also examined. High levels of H2O2 appear to reduce dye de-colorization.

کلیدواژه ها:

Acid dye ، Dye de-colorization ، Fenton ، Oxidation