Résumé:
In this study, removal of Cresol Red (CR), a cationic triphenylmethane dye, by 300 kHz ultrasound was
investigated. The effect of additive such as potassium monopersulfate ( oxone) was studied. Additionally,
sonolytic degradation of CR was investigated at varying ultrasonic power . RC can be readily eliminated by the
ultrasound process. The obtained results showed that. Sonochemical degradation of CR was strongly affected by
ultrasonic power .The degradation rate of the dye increased substantially with increasing ultrasonic power in the
range of 20W to 80 W. This improvement could be explained by the increase in the number of active cavitation
bubbles. The ultrasonic degradation of dye was enhanced by potassium monopersulfarte (oxone) addition. It was
found that the degradation of the dye was accelerated with increased concentrations of oxone for a reaction time
of 75 minutes
