Abstract
A water disinfection treatment using ozone microbubbles generated by a hollow ultrasonic horn was developed, and its disinfection ability to Escherichia coli in water was investigated. The treatment using ozone microbubbles generated by the hollow ultrasonic horn can completely sterilize within half the time required in a treatment using bubbles generated by a disperser. These results revealed that the disinfection treatment using ozone microbubbles generated by the hollow ultrasonic horn has high mass transfer efficiency and disinfection ability.
