(B, ) the utility model relates to an oil field fracturing fluid processing method and technical field are device for solid advanced oxidation treatment oil field fracturing is returned flowing back height and is gathered sewage, and fixed mounting has a first communicating pipe at the oxidation jar and between mix congealing jar for it, mix congeal jar with flocculation jar between fixed mounting have a second communicating pipe, fixed mounting has third communicating pipe between flocculation jar and settling cask, has the liquid of coming import on the oxidation jar, the oxidant adds medicine mouth and first stirring mouth, has the coagulant to add medicine mouth and second stirring mouthful mixing to congeal jar, have the flocculating agent to add the medicine mouth in flocculation jar and the third stirs the mouth, has the water purification mouth on the upper portion of settling cask, has pai nikou in the lower part of settling cask device for solid advanced oxidation treatment oil field fracturing is returned flowing back height and is gathered sewage can reduce the fracturing effectively and return (b) (b) COD (b) (b) value and the viscosity that the flowing back height gathers sewage for organic matter content in purifying waste water obviously descends, can reach the standard of recycling the oil field and purify waste water, the solid oxidant, and the addition of coagulant and flocculating agent is lower, thereby has reduced the fracturing and returned the treatment cost that the flowing back height gathers sewage, has the short advantage of easy operation and flow (B, )