Title :
Research on Treating Tannery Wastewater by Using Nanometer-Sized TiO2 Glass Thin Film
Author :
Jia, Song ; Peiyao, Xu ; Ya, Zhang ; Yana, Feng
Author_Institution :
Dept. of Environ. Sci. & Eng., North China Electr. Power Univ., Baoding, China
Abstract :
Nanometer-sized TiO2 thin films were prepared by sol-gel processing. Photocatalytic degradation of tannery wastewater has been studied by using the TiO2 films as photocatalyst. In the static experiments, by using the low pressure UV as light source, the best condition is that the time of light-catalyzed is 4 hours, initial pH is 6.7 and the volume of H2O2 is 0.3% (v/v). Then, we carried on the dynamic experiment under this condition by using the high pressure UV as light source and found that the removal rate of CODcr reached 85.79% after 40 min of irradiation and the removal rate of Cr6+ reached 84.62% after 110 min of irradiation. Besides, the effect of degradation of tannery wastewater improved by using the Fe3+/ TiO2 thin films.
Keywords :
catalysis; leather industry; photochemistry; radiation; sol-gel processing; thin films; wastewater treatment; TiO2; irradiation; nanometer-sized glass thin film; photocatalytic degradation; sol-gel processing; tannery wastewater degradation; tannery wastewater treatment; time 110 min; time 4 hour; time 40 min; Chromium; Degradation; Doping; Glass; Inductors; Light sources; Oxidation; Pollution; Transistors; Wastewater treatment; TiO2 thin film; doping Fe3+; sol-gel processing; tannery wastewater;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.411
