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Response surface optimization of the photocatalytic decolorization of a simulated dyestuff effluent

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: M.S. Secula, G.D. Suditu, I. Poulios, C. Cojocaru, I. Cretescu

Editorial: Elsevier, Chemical Engineering Journal, Volume 141, Issues 1-3, p.18-26, 2008.

Rezumat:

The experimental design methodology was applied for response surface modeling and optimization of the photocatalytic decolorization of a
simulated dyestuff effluent (SDE), containing the azo dye Reactive Black 5 (RB5) as colorant. The variables considered were the initial concentration
of TiO2, Fe3+ and H2O2. The multivariate experimental design allowed developing a quadratic model as a functional relationship between color
removal efficiency and the independent variables. Under the optimum conditions established, the performance of 99.3% for color removal was
experimentally reached. It was found that all factors considered have an important effect in the degradation efficiency of the organic matter.

Cuvinte cheie: Fotocataliza; apa uzata sintetic continand coloranti; RB5; TiO2; Optimizarea suprafetei de raspuns // Photocatalysis; Simulated dyestuff wastewater; Reactive Black 5; TiO2; Response surface optimization

URL: http://www.science-direct.com/science?_ob=ArticleURL&_udi=B6TFJ-4PV94H2-4&_user=5286814&_coverDate=07%2F15%2F2008&_alid=884296357&_rdoc=1&_fmt=high&_orig=search&_cdi=5228&_sort=d&_docanchor=&view=c&_ct=1&_acct=C000026732&_version=1&_urlVersion=0&_userid=5