Treatment of Oily Wastewater by Photocatalytic Degradation Using Nano Fe-TiO_2

摘要

The present study aimed at investigating the preparing nano-titania by sol-gel method and nano Fe-TiO_2 oxidation system for the treatment of oily wastewater. Reaction conditions were optimized concerning TiO_2 type, the dosage of Fe-TiO_2 and pH. The efficiency of oil removal and COD removal were ascertained and optimum process conditions for stable and effective operation were determined. Under the optimum conditions of Fe-TiO_2 1 g/L and pH 6.0, the process of UV/Fe-TiO_2 achieved removal efficiencies of oil and COD as 98.1% and 98.5%, respectively. Thus, this technique could be used as a treatment for oily wastewater.