Abstract
Advanced water treatment technologies using OH radical and O radical have been studied. The persistent organic substances such as dioxins which cannot be decomposed by even ozone. OH radical and O radical can decompose these substances since they have stronger oxidation potential than that of ozone. In this study, acetic acid was used as a model of persistent organic pollutant. Acetic acid decomposition experiments were carried out by using multiple bubble jets with nanosecond pulsed discharge. In order to obtain optimum conditions, the effects of various applied voltages and anode geometry on the decomposition rate and energy efficiency were clarified.