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Phenol Conversion Properties in Aqueous Solution by Pulsed Corona Discharge  

Lee, Hyun-Don (Department of Environmental Engineering, Jinju National University)
Chung, Jae-Woo (Department of Environmental Engineering, Jinju National University)
Cho, Moo-Hyun (School of Environmental Science and Engineering, POSTECH)
Publication Information
Journal of Korean Society of Environmental Engineers / v.29, no.1, 2007 , pp. 40-46 More about this Journal
Abstract
A laboratory scale experiment on phenol conversion properties by pulsed corona discharge process was carried out. Effects of operating parameters such as applied voltage, input oxygen, and electrode geometry on phenol conversion and solution properties were investigated. Electrical discharges generated in liquid phase increased the liquid temperature by heat transfer from current flow, decreased the pH value by producing various organic acids from phenol degradation, and increased conductivity by generating charge carriers and organic acids. The oxygen supply enhanced the phenol conversion through the ozone generation dissolution and the production of OH radicals. Series type electrode configuration induced more ozone production than reference type configuration because it produced gas phase discharges as well as liquid phase discharges. Therefore, the higher phenol conversion and TOC(total organic carbon) removal efficiency were obtained in series type configuration.
Keywords
Pulsed Corona Discharges; Operating Parameters; Electrode Geometry; Phenol Conversion;
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