Ultrasonic cavitation wastewater sterilization treatment device and treatment method

The invention discloses an ultrasonic cavitation wastewater sterilization treatment device and a treatment method. The treatment device comprises a J-shaped water inlet device and a U-shaped water outlet device, wherein the J-shaped water inlet device is provided with a water inlet, a first opening and a second opening; the first opening is provided with an attached pipe; a jet pipe is arranged in the attached pipe; the U-shaped water outlet device is provided with a water outlet, a third opening and a fourth opening; the second opening of the J-shaped water inlet device is connected with the third opening of the U-shaped water outlet device; the fourth opening of the U-shaped water outlet device is provided with a sealed impact body. The treatment device has the advantages of simple structure and capabilities of generating an ultrasonic cavitation phenomenon and performing strong oxidization and sterilization on wastewater.