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KMID : 1156220070330020150
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Journal of Environmental Health Sciences
2007 Volume.33 No. 2 p.150 ~ p.157
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Decolorization of Rhodamine B by Fenton, Fonton-like and Photo-Fenton-like Oxidation
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Kim Dong-Seog
Park Young-Seek
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Abstract
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The chemical and photochemical decolorization of Rhodamine B (RhB) in water has been carried out by Fenton, Fenton-like and photo-Fenton-like process. The effect of applied H₂O₂, Fe²? dosage (Fenton process), H₂O₂, Feo dosage (Fenton-like and photo-Fenton-like process), UV light power (photo-Fenton-like process) pH (all processes) have been studied. The results obtained showed that more than 98% of color removal was obtained for the RhB solutions in every process. However, Fenton-like process was not suitable for the color removal of RhB because Fenton-like process was required much more reagents than Fenton and photo-Fenton-like process. The Fenton and photo-Fenton-like process showed similar reagents need. Optimum pH for three processes in this study is about pH 3. The relative order of sensitivity for pH of each process was: Fenton-like ＞ photo-Fenton-like ＞ Fenton.
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KEYWORD
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Fenton, Fenton-like, photo-Fenton-like, optimum condition, pH
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