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Photocatalytic Degradation of a Real Textile Wastewater using Titanium Dioxide , Zinc Oxide and Hydrogen Peroxide
| Content Provider | Semantic Scholar |
|---|---|
| Author | Khan, Wasi Z. Najeeb, Imad Ishtiaque, Shagufta |
| Copyright Year | 2016 |
| Abstract | --------------------------------------------------------ABSTRACT----------------------------------------------------------In this study, the photocatalytic degradation of textile wastewater from Gul Ahmad textile industry in Karachi, Pakistan, using TiO 2 , ZnO, and H2O2as photocatalyst was investigated. The experiments were carried out at 38 o C in astirrerbath reactor by using Ultra-Violet photo oxidation process. The degradation of wastewater using TiO 2 and ZnO under various pH and using TiO 2 and H2O2 were examined. Titanium dioxideand zinc oxide proved to be very effective catalysts in photocatlytic degradation of real textile industrial water. The maximum decolorization achieved was 95.29% by using TiO 2 and 64.41% by using ZnO at 37 o C and pH of 9, within 150minutes of irradiations. At pH of 7.3 the maximum decolorization was 90.48%. When TiO 2 was combined with H2O2 the maximum decolorization was about 86% but surprisingly within 50 minutes of the irradiation time. A higher reaction rate was found for Titanium dioxide. The results indicate that for real textile wastewater, TiO 2 is comparatively more effective than ZnO. This study proves that real textile wastewater reacts differently to catalysts than aqueous solution of azo-dyes, which is associated with surface steps and sensitization of the reaction rate by presence of other contaminants in real textile wastewater. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://theijes.com/papers/v5-i7/I050701061070.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
