Research of the application of synergistic ultrasonic- ultraviolet sterilization technology on drinkable natural water

The synergistic sterilization technology of ultrasonic- ultraviolet for drinkable natural water was investigated in this paper,which was applied in actual production.Through experiments and data analysis,the best sterilizing effect for ultrasonic- UV synchronizing was under the condition that the frequency of ultrasonic was 20 k Hz with the power of 500 W,and the exposure dose of UV was 30 m J / cm2 with the exposure period of 10 seconds.With the ultrasonic- UV sterilizing device running on water treatment for nearly 1 year,significant sterilizing effect was achieved by using the ultrasonic- UV combined device on water source treatment. Compared to the traditional single treatment of 0.3 mg / L O3 sterilizing,the ultrasonic- UV synchronizing technology combined with the 0.1 mg / L O3 sterilizing treatment,achieved more significant effect and an outstanding data with the bromate density lower than 0.005 mg / L,which meets national standard.In general,the synchronized ultrasonic- UV sterilizing technology for drinkable water was an alternative solution for the single way of O3 sterilizing method,it not only achieved sterilizing effect,lowered bromate contamination risk,but also assured the quality of drinkable water product.