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KMID : 1156220080340060439
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Journal of Environmental Health Sciences
2008 Volume.34 No. 6 p.439 ~ p.445
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Removal of Rhodamine B in Water by Ultraviolet Radiation Combined with Electrolysis(Ⅰ)
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Park Young-Seek
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Abstract
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The feasibility study for the application of the removal and mineralization of Rhodamine B (RhB) was performed in a batch electrochemical reactor. The electro/UV process was consisted of DSA (dimensionally stable anode) electrode and UV-C or ozone lamp. The experimental results showed that RhB removal by the ozone lamp was higher than that of the UV-C lamp. Optimum current of the electro/UV process was 1 A. The electrochemical, UV and electro/UV process could completely degrade RhB, while a prolonged treatment was necessary to reach a high level RhB mineralization. It was ohserved that RhB removal in electro/UV process is similar to the sum of the UV and electrolytic decolorization. However, it was found that the COD of RhE could be degraded more efficiently by the electrolUV process (90.2 %) than the sum of the two individual oxidation processes [UV (19.7%) and electrolytic process (50.8%)]. A synergetic effect was demonstrated between the UV and electrolysis.
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KEYWORD
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electrolysis, electro/UV process, dye, COD, color, synergetic effect
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