Sewage advanced treatment device of square pipeline three-dimensional series box-type ozone reactor

The utility model discloses a sewage advanced treatment device of a square pipeline three-dimensional series box type ozone reactor, and relates to an ozone oxidation sewage treatment technology. Thedevice is characterized in that an inlet of an ejector (20) is respectively communicated with an outlet of sewage (00) and an outlet of an ozone generator (30), and an outlet of the ejector (20) is respectively communicated with a hydrogen peroxide dosing barrel (40), an outlet of an iron ion dosing barrel (50) and an inlet of an ozone reactor (10); a static mixer (60) is arranged at the inevitable part between the layers of the ozone reactor (10); oxidized water (70) is obtained at the outlet of the ozone reactor (10). According to the utility model, the ozone utilization rate is 100%; the mixing degree of ozone and sewage is high, the ozone and the sewage collide and turn back at the two ends, flow in a curve circuitous mode, are forcibly mixed through a middle gap bridge, turn back repeatedly, are completely mi