Sonolytic destruction of methyl tert-butyl ether by ultrasonic irradiation: The role of O3, H2O2, frequency, and power density

Joon Wun Kang, Hui Ming Hung, Angela Lin, Michael R. Hoffmann

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159 Citations (Scopus)

Abstract

The kinetics of degradation of methyl tert-butyl ether (MTBE) by ultrasonic irradiation in the presence of ozone as functions of applied frequencies and applied power are investigated. Experiments are performed over the frequency range of 205-1078 kHz. The higher overall reaction rates are observed at 358 and 618 kHz and then at 205 and 1078 kHz. The observed pseudo-first-order rate constant, k(O), for MTBE degradation increases with increasing power density up to 250 W L-1. A linear dependence of the first- order rate constant, k(O3), for the simultaneous degradation of O3 on power density is also observed. Naturally occurring organic matter (NOM) is shown to have a negligible effect on observed reaction rates.

Original languageEnglish
Pages (from-to)3199-3205
Number of pages7
JournalEnvironmental Science and Technology
Volume33
Issue number18
DOIs
Publication statusPublished - 1999 Sep 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

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