Sonophotolytic oxidation or the sono–photolysis hybrid advanced oxidation process (AOP), in which sonication and photolysis (UV–C/H2O2) are used simultaneously, has been shown to effectively degrade a variety of bio–recalcitrant pollutants. In the world of Textile Waste Water Treatment it is highly important in the system.
The majority of degradation reactions are caused by oxidizing (radical dot OH) radicals generated by photolysis. The contribution of Sonolysis to deterioration is quite minor when compared to photolysis due to the highly random nature of transitory cavitation.
Sonophotolytic oxidation Process :
- In the case of photocatalytic oxidation, the most common problem is the reduced efficiency of the photocatalyst with continuous operation.
- This is due to the adsorption of contaminants at the surface and blocking of the UV active sites.
- So a technique for proper continuous cleaning of the surface during the operation is required.
- Ultrasonic irradiation is one of the technique that can be used continually with the UV/solar irradiation.