전해 산화제에 의한 악취 원인 VOCs 제거 특성

Abstract

In this study, various conditions and phenomena that occur in the process of removing odorous VOCs by usingelectrolyzed oxidant were examined. The formation of hypochlorous acid, which is an oxidant produced byelectrolysis, was investigated and the properties of the oxidizing agent used to decompose toluene, xylene, andcyclohexane were investigated. As a result, it was found that the production rate and the final concentration ofthe oxidizing agent increased with the current density. It was found that the degree of removal varies dependingon the property of each pollutant. Interestingly, in the batch experiments in which the pH of the produced oxidantwas controlled, it was found that the degree of elimination varied depending on the pH of the substance. Theseresults suggest that the difference in the concentration and distribution of hypochlorous acid (HOCl) andhypochlorite (OCl−) due to the pH change leads to the difference in oxidizing power on the oxidation characteristicsof each substance. Styrene and terpineol showed better degradation characteristics than toluene and xylene inodorous VOC removal experiments by spraying electrolytic oxidant using a lab-scale continuous reactor. Inconclusion, the removal of odorous VOCs by the electrolytic oxidant can have various applications in that it canoxidize pollutants of various spectra.