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Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study

I. Grčić ; Faculty of Chemical Engineering and Technology, University of Zagreb, Maruliæev Trg 19, HR-10000, Zagreb, Croatia
D. Vujević ; Faculty of Chemical Engineering and Technology, University of Zagreb, Maruliæev Trg 19, HR-10000, Zagreb, Croatia
N. Koprivanac ; Faculty of Chemical Engineering and Technology, University of Zagreb, Maruliæev Trg 19, HR-10000, Zagreb, Croatia

Puni tekst: engleski, pdf (2 MB) str. 387-400 preuzimanja: 267* citiraj
APA 6th Edition
Grčić, I., Vujević, D. i Koprivanac, N. (2010). Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study. Chemical and Biochemical Engineering Quarterly, 24 (4), 387-400. Preuzeto s https://hrcak.srce.hr/62708
MLA 8th Edition
Grčić, I., et al. "Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study." Chemical and Biochemical Engineering Quarterly, vol. 24, br. 4, 2010, str. 387-400. https://hrcak.srce.hr/62708. Citirano 22.09.2019.
Chicago 17th Edition
Grčić, I., D. Vujević i N. Koprivanac. "Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study." Chemical and Biochemical Engineering Quarterly 24, br. 4 (2010): 387-400. https://hrcak.srce.hr/62708
Harvard
Grčić, I., Vujević, D., i Koprivanac, N. (2010). 'Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study', Chemical and Biochemical Engineering Quarterly, 24(4), str. 387-400. Preuzeto s: https://hrcak.srce.hr/62708 (Datum pristupa: 22.09.2019.)
Vancouver
Grčić I, Vujević D, Koprivanac N. Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study. Chemical and Biochemical Engineering Quarterly [Internet]. 2010 [pristupljeno 22.09.2019.];24(4):387-400. Dostupno na: https://hrcak.srce.hr/62708
IEEE
I. Grčić, D. Vujević i N. Koprivanac, "Statistical Evaluation of UV/TiO2/H2O2 and Fe2+/H2O2 Process for the Treatment of Coloured Wastewater; A Comparative Study", Chemical and Biochemical Engineering Quarterly, vol.24, br. 4, str. 387-400, 2010. [Online]. Dostupno na: https://hrcak.srce.hr/62708. [Citirano: 22.09.2019.]

Sažetak
In this work, two types of advanced oxidation processes; photocatalytic oxidation, UV/TiO2/H2O2 and classic Fenton oxidation, Fe2+/H2O2, have been applied for the treatment of a model wastewater containing reactive azo dyes, C.I. Reactive Violet 2 (RV2)
and C.I. Reactive Yellow 3 (RY3). In order to evaluate the effect of the initial concentration of catalysts, γ(TiO2) or [Fe2+], initial concentration of oxidant, [H2O2] or the initial oxidant/catalyst mole ratio [H2O2]/[Fe2+] and pH on apparent mineralization and decolourization rates, a response surface method (RSM) D-optimal design was used. Mineralization was described by pseudo-first-order kinetics with the highest observed rate constants; km,UV = 0.0065 min–1 in the case of UV/TiO2/H2O2 process and km,F = 0.0213 min–1 in the case of Fenton process. A kinetic model describing decolourization on wavelengths of maximum absorbance for studied dyes, λmaxRV2 550 nm, and λmaxRY3 385 nm, was composed of two first-order in-series reactions with corresponding decolourization rates. The effects of each factor on the efficiency of the applied processes were found to be significant.

Ključne riječi
Wastewater treatment; reactive azo dyes; photocatalytic oxidation; Fenton oxidation; response surface method (RSM); D-optimal design

Hrčak ID: 62708

URI
https://hrcak.srce.hr/62708

Posjeta: 507 *