Abstract
The decolorisation of reactive dyeing wastewater with ultraviolet radiation and ultrasonic vibration in the presence of hydrogen peroxide was investigated by a batch operation system. Kinetic studies of the reactive dye were conducted on the effects of pH and peroxide dosage, and the performance of ultrasonic vibration on the oxidation process was also investigated. It was found that the degradation of the reactive dye followed a pseudo‐first‐order kinetic model at different pH and peroxide dosages. The relationships between the rate constants and pH, as well as peroxide concentration, were established.
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