To provide a treatment method and treatment apparatus of infectious waste capable of efficiently treating the infectious waste without enlarging an ozonization apparatus.

Waste water containing the infectious waste which is discarded of from medical facilities or else is pretreated by using chlorine dioxide and, thereafter, is ozonized. The treatment apparatus of infectious waste is provided with a first treatment tank 1, a second treatment tank 2, a chlorine dioxide injector 3 which injects chlorine dioxide C as a sterilizer into the first treatment tank 1, a waste water supply device 5 which supplies the waste water D containing the infectious waste to the first treatment tank 1, a circulation device 7 which circulates the waste water D between the first and second treatment tanks 1 and 2, an ozone supply device 8 which supplies ozone into the circulating waste water and a discharge device 9 discharging the treated waste water.

COPYRIGHT: (C)2004,JPO