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http://dx.doi.org/10.5668/JEHS.2009.35.4.295

Effect of Operating Parameters on Electrochemical Degradation of Rhodamine B by Three-dimensional Electrode  

Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
Park, Young-Seek (Department of Health & Environment, Daegu University)
Publication Information
Journal of Environmental Health Sciences / v.35, no.4, 2009 , pp. 295-303 More about this Journal
Abstract
A simulated wastewater containing the dye Rhodamine B (RhB) was electrolytically treated using a three-dimensional electrode reactor equipped with granular activated carbon (GAC) as particle electrode. The effect of type of packing material (GAC, ACF, Nonwoven fabric fiber coated with activated carbon), amounts of GAC packing (25-100 g), current (0.5-3 A) and electrolyte concentration (0.5-3 g/l) was evaluated. Experimental results showed that performance for RhB decolorization of the 3 three-dimensional electrodes lie in: GAC > Nonwoven fabric fiber > ACF. When considered RhB decolorization, oxidants concentration and electric power, optimum GAC dosage was 50 g. Generated concentration of 3 oxidants ($ClO_2$, free Cl, $H_2O_2$) was increased with increase of applied current, however optimum current for RhB degradation was 2.5 A. The oxidants concentration was increased with increase of NaCl concentration and optimum NaCl dosage for RhB degradation was 1.5 g/l.
Keywords
three-dimensional electrode; GAC; oxidants; Rhodamine B; current;
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Times Cited By KSCI : 6  (Citation Analysis)
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