English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The oxidative reactions of OH, H, and O radicals, H 2 O 2 , and O 3  produced by plasma energy are widely applied to purify an aqueous solution and to decompose phenolic compounds and microorganisms. In this paper, the wet packed-barrier reactor (WPBR) filled with glass and the ZrO 2  pellets was used and the high voltage of frequency 20 ~ 30 kHz was applied to create the electrical discharge plasma. Electrodes of the reactor did not contact with water directly, because water contamination by the erosion of electrodes exposed to the water should be minimized. The effect of water conductivity on the dissolved ozone and hydrogen peroxide concentrations in water were investigated by comparing the results with tap water and those of distilled water. Active radicals and ozone generated in the plasma region may react with water to lead to the dissolved ozone and hydrogen peroxide formation simultaneously in water. Concentrations of the dissolved ozone and hydrogen peroxide in the case of tap water with the conductivity of 80 μS/cm was much higher than those in the case of the distilled water with the conductivity of about 0 S/cm. The maximum concentration of the dissolved O 3  and H 2 O 2  were 1.58 ppm and 2.4 ppm, respectively. After plasma treatment, the conductivity of the distilled water increased, but those of tap water decreased.

The Effect of Conductivity on Active Species Products by Electrical Discharge with Air Bubbles in Water