Naslov
Textile dyes degradation by UV/TiO2/H2O2 process ; a factorial experimental design approach

Autori
Grčić, Ivana ; Papić, Sanja ; Peternel, Igor ; Koprivanac, Natalija

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
2nd International Congress on Green Process Engineering & 2nd European Process Intensification Conference (GPE-EPIC 2009) : Proceedings / - Toulouse : INPACT, 2009, 1-6

Skup
International Congress on Green Process Engineering (2 ; 2009) ; European Process Intensification Conference (2 ; 2009)

Mjesto i datum
Venecija, Italija, 14.06.2009. - 17.06.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
advanced oxidation process (AOP); UV/TiO2/H2O2 process; reactive dyes; 23 factorial experimental design; statistical study; numerical optimization

Sažetak
Advanced oxidation process (AOP), UV/TiO2/H2O2, has been applied for a degradation of the commercially available reactive dyes, C.I. Reactive Yellow 3 (RY3) and C.I. Reactive Violet 2 (RV2), used as model organic pollutants in synthetic wastewater. In order to decolorize and to minimize the organic content of RY3-RV2 synthetic wastewater, the effects of key operating parameters such as initial pH, hydrogen peroxide and TiO2 concentrations on the oxidation of the dyes have been assessed. The statistical study of the process was performed using two-level 23 full factorial experimental design (DoE) with these three factors ; (X1) H2O2 concentration, (X2) TiO2 dosage and (X3) pH value of the system. Other process parameters ; initial concentration of dyes, UV light intensity, reaction time, temperature and stirring velocity were adjusted at fixed values. Individual factors and their interaction effects on decrease in concentration of both reactive dyes were determined. Optimal range for each key operating parameter was found. Numerical optimization resulted in several "points" i.e. combinations of investigated parameters with highest efficiency of mineralization and decolorization predicted.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

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