Suspended Activated Carbon Particles and Ozone Formation in Aqueous-Phase Pulsed Corona Discharge Reactors

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• 作者：David R. Grymonpré ; Wright C. Finney ; Ronald J. Clark ; and Bruce R. Locke
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2003
• 出版时间：October 15, 2003
• 年：2003
• 卷：42
• 期：21
• 页码：5117 - 5134
• 全文大小：357K
• 年卷期：v.42,no.21(October 15, 2003)
• ISSN：1520-5045

文摘

The effects of suspended activated carbon particles and oxygen flow through the high-voltageelectrode in liquid-phase pulsed corona discharge reactors were evaluated for the degradationand removal of phenol. Experimental studies showed that phenol can be effectively degradedwith a wide range of reactor conditions; however, the most efficient removal of phenol occurredwhen activated carbon and ferrous sulfate solutions were utilized in the liquid-phase coronareactor. The most efficient TOC removal occurred in the above conditions with the addition ofoxygen flow. The oxygen gas flow leads to ozone formation, and the subsequent reactions of thedissolved ozone enhance reactions with the oxidation byproducts of phenol. The ferrous sulfateleads to Fenton's reactions from the hydrogen peroxide generated by the discharge. Throughthe combination of experimental measurements and a mathematical model accounting foradsorption, mass transfer, and surface reaction on the activated carbon, it was found that thereis a strong possibility that the activated carbon participates in catalytic reactions with phenoland its primary byproducts.