Advanced oxidation effect of the disinfection system using ultrasonically-generated ozone microbubbles

研究了一种利用中空超声变幅杆产生的臭氧微泡对水体进行消毒处理的方法，并考察了该方法对大肠杆菌的灭活效果。实验结果表明，这种处理涉及大肠杆菌的有效消毒。这种使用由中空超声变幅杆产生的臭氧微泡的处理导致有效的消毒，这是由于微泡的高溶解度以及臭氧和超声辐射的协同作用，即臭氧自分解和自由基产生的增强。

We developed a water disinfection treatment approach using ozone microbubbles generated by a hollow ultrasonic horn, and investigated the effect of inactivation for Escherichia coli with this treatment. Experimental results reveal that this treatment involves efficient disinfection of Escherichia coli. This treatment using ozone microbubbles generated by a hollow ultrasonic horn led to efficient disinfection, owing to the high solubility of the microbubbles and the synergism of the ozone and ultrasonic irradiation, i.e. the enhancement of ozone self-decomposition and radicals generation.