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http://dx.doi.org/10.7857/JSGE.2016.21.1.086

Identifications of Optimal Conditions for Photo-Fenton Reaction in Water Treatment  

Oh, Tae Hyup (Department of Civil and Environmental Engineering, Hanyang University)
Lee, Hanuk (Department of Civil and Environmental Engineering, Hanyang University)
Park, Sung Jik (Department of Civil and Environmental Engineering, Hanyang University)
Park, Jae-Woo (Department of Civil and Environmental Engineering, Hanyang University)
Publication Information
Journal of Soil and Groundwater Environment / v.21, no.1, 2016 , pp. 86-93 More about this Journal
Abstract
Fenton is the reaction using the OH· radicals generating by interaction between hydrogen peroxide and Fe2+ which can oxidize the contaminants. Fe2+ ions are oxidized to Fe3+ ions by reaction with H2O2 and formed OH· radicals. UV-Fenton process includes the additional reaction that generates the OH· radicals by photodegradation of H2O2. In methylorange (MO) decolourization experiment with UV-Fenton, optimal Fe2+: H2O2 ratio was obtained at 1 : 10. Based on the obtained condition (H2O2= 10mM, Fe2+ = 1 mM) with/without UV-fenton experiment was carried out. Removal efficiency and sludge production were measured at 30 min. The case of w/o UV irradiation and only H2O2 was hardly treated and only Fe2+ showed 65% removal owing to coagulation. When UV-Fenton process in optimal ratio (Fe2+: H2O2 = 1 : 10), UV irradiation showed better removal efficiency than of w/o UV irradiation. Also, MO decolourization was a function of the hydrogen peroxide concentration (x1), Fe2+:H2O2 ratio (x2), and numbers of UV lamp (x3) from the application of the response surface methodology. Statistical results showed the order of significance of the independent variables to be hydrogen peroxide concentration > numbers of UV l amp > Fe2+: H2O2 ratio.
Keywords
Fenton; UV; Response surface mothodology;
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Times Cited By KSCI : 3  (Citation Analysis)
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