Disinfection device for semiconductor processing sewage treatment

The utility model relates to the field of sewage treatment devices, and discloses a disinfection device for semiconductor processing sewage treatment. A buffer pipe is welded to the outer surface of the reaction tank, a flow mixing pipe is welded to the outer surface of the end, away from the reaction tank, of the buffer pipe, an introduction pipe is welded to the outer surface of the end, away from the buffer pipe, of the flow mixing pipe, a connecting pipe is fixedly connected to the outer surface of the introduction pipe, and a storage tank is fixedly connected to the outer surface of the end, away from the introduction pipe, of the connecting pipe. During use, semiconductor processing sewage enters from the second ingress pipe, the storage tank is introduced from the ingress pipe through the connecting pipe, a liquid disinfection reagent is fused into the sewage, the whole sewage is flushed into the flow mixing pipe through subsequent sewage, and the inner wall of the flow mixing pipe adopts a spiral groo