Sonolytic destruction of methyl tert-butyl ether by ultrasonic irradiation: The role of O-3, H2O2, frequency, and power density
Journal
Environmental Science & Technology
Journal Volume
33
Journal Issue
18
Pages
3199-3205
Date Issued
1999
Author(s)
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, k0, for MTBE degradation increases with increasing power density up to 250 W L-1. A linear dependence of the first-order rate constant, kO3, 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.
SDGs
Type
journal article