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KMID : 1156220090350030201
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Journal of Environmental Health Sciences
2009 Volume.35 No. 3 p.201 ~ p.208
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Electrochemical Degradation of Phenol by Electro-Fenton Process
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Kim Dong-Seog
Park Young-Seek
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Abstract
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Oxidation of phenol in aqueous media by electro-Fenton process using Ru-Sn-Sb/graphite electrode has been studied. Hydrogen peroxide was electrically generated by reaction of dissolved oxygen in acidic solutions containing supporting electrolyte and Fe²? was added in aqueous media. Phenol degradation experiments were performed in the presence of electrolyte media at pH 3. Effect of operating parameters such as current, electrolyte type (NaCl, KCl and Na₂SO₄) and concentration, Fe²? concentration, air flow rate and phenol concentration were investigated to find the best experimental conditions for achieving overall phenol removal. Results showed that current of 2 A, NaCl electrolyte concentration of 2 g/l, 0.5M concentration of Fe²?, air flow rate of 1 l/min were the best conditions for mineralization of the phenol by electro-Fenton.
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KEYWORD
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electro-Fenton, phenol, H₂O₂, electrolyte, Fe²?
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