| Summary: | 碩士 === 國立成功大學 === 化學工程學系碩博士班 === 92 === The investigation used H2O2/Fe2+, one of the chemical oxidation methods called Fenton, to treat reactive dye-Black B. And added UV light or electric field to improve removal efficiencies. Experimental results showed that when dye degraded by Fenton, would product formic acid and oxalic acid, which’s COD were ca half of actual measured, were major intermediates. The COD removal efficiencies was Photo-Fenton＞Fered-Fenton>Fenton. Fered-Fenton process applied H2O2 and electrogenerated Fe2+ produced via the reduction of ferric ion. When Fered-Fenton was operated under nice current efficiency, have well removal efficiencies for formic acid, but not for oxalic acid. In contrast, Photo-Fenton have well removal efficiencies for formic acid and oxalic acid. Through my investigation verified that, the reaction mechanism of Photo-Fenton was UV light reacted with ferrioxalate, proceeded reduced Fe2+ and degraded oxalic acid.
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