The degradation of aqueous phenol solutions by pulsed positive corona discharges

W.F.L.M. Hoeben, E.M. Veldhuizen, van, W.R. Rutgers, C.A.M.G. Cramers, G.M.W. Kroesen

Research output: Contribution to journalArticleAcademicpeer-review

125 Citations (Scopus)

Abstract

he Advanced Oxidation Process pulsed corona discharges have been utilized for the degradation of phenol in aqueous solution. The pulsed positive corona discharges are struck in the ambient gas phase over the solution. Experiments have been performed using both an air and argon atmosphere. Phenol conversion and the production of major oxidation products in the solution have been determined, using ion-exclusion chromatography with UV absorbance and conductivity detectors in series. The corona pulse energy has been measured from voltage and current waveforms using capacitive current correction. Oxidation products are polyhydroxybenzenes and carboxylic acids. Even though phenol conversion efficiencies by pulsed positive corona discharges in air and argon are similar, the degradation pathways are different.
Original languageEnglish
Pages (from-to)361-369
Number of pages9
JournalPlasma Sources Science and Technology
Volume9
Issue number3
DOIs
Publication statusPublished - 2000

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