Title: Hybrid gas-liquid electrical discharge for degradation of organic pollutants in aqueous solution

Authors: Li-nan Zhu, Jun Ma, Shi-dong Yang

Addresses: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. ' School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. ' School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China

Abstract: Hybrid gas-liquid electrical discharge for degradation of phenol was investigated. The removal rate increased with decreasing the phenol initial concentration and adding some catalysts, such as Fe2+, Fe3+and H2O2. Augmenting the particle diameter of activated alumina or exchanging beadings as padding would lead to the reduction of the removal rate of phenol. Local discharge promoted the phenol degradation in the thin water film. And the space-time distribution of gas-liquid phases was more uniform and the contact areas of activated species generated from the discharge and the pollutant molecules were much wider due to the effect of the activated alumina bed.

Keywords: hybrid gas-liquid electrical discharge; activated alumina; catalysts; phenol removal; degradation; organic pollutants; aqueous solutions; removal rate.

DOI: 10.1504/IJEWM.2008.021784

International Journal of Environment and Waste Management, 2008 Vol.2 No.4/5, pp.436 - 446

Available online: 04 Dec 2008 *

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