The invention relates to the technical field of
sewage treatment, in particular to an
ozone oxidation treatment device for
sewage treatment, which comprises an
aeration box, an
ozone generator, an
aeration pipe and a plurality of
aeration heads, the output end of the
sewage pipe extends into the upper part of the treatment chamber of the aeration box, the
rotational flow cylinder is mounted in the middle of the pretreatment chamber of the separation box, an outlet is formed in the lower end of the
rotational flow cylinder, the blow-off
pipe is mounted on the separation box and is concentric with the separation box, the lower end of the blow-off pipe is positioned in the middle of the
rotational flow cylinder, and the blow-off pipe is positioned in the middle of the rotational flow cylinder. The upper end of the blow-off pipe extends above the separation box, a
sediment discharge pipe is arranged at the lower end of the side wall of the separation box, the input end of the
water supply pipe extends into the middle lower part of the pretreatment chamber of the separation box and is positioned below the
cyclone cylinder, and the output end of the
water supply pipe extends into the bottom of the treatment chamber of the aeration box; the
sewage treatment device can be used for carrying out pretreatment for removing floating objects and sediments in sewage, and the
ozone oxidation treatment efficiency is improved.