ACOUSTIC CAVITATION NUMBER AND ITS EFFECT ON THE INTENSITY OF OXIDATIVE DEGRADATION OF CONGO RED DIAZO DYE

A combination of two periodate activation strategies was proposed for highly efficient and highly intensive oxidative degradation of Congo red diazo dye. It was found that at the average power of the ultrasound generator of 10.2 W, which corresponded to the value of the acoustic cavitation 720, the degradation degree of Congo red using the innovative ultrasound/KIO4/FeSO4 oxidation process was equal to 97.2 %, and the rate constant was 9.1·10-3 s-1. An increase in the intensity of the oxidative degradation of Congo red with a decrease in the acoustic cavitation number was revealed. The destruction

Congo red; diazo dye; oxidative degradation; periodate activation; acoustic cavitation number; ultrasound; iron sulfate
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