Abstract: The effect of the inclined plate dissolved air flotation method on the treatment of oil bearing wastewater in oil field was studied. Influence of the different technological parameters, including inclined plate spacing, reflux ratio, surface load, coagulant dosage and bubble layer thickness, on the treatment effect of the inclined plate dissolved air flotation method was investigated, and the optimum parameters were determined. In view of the oil production wastewater treatment in an oilfield, compared with the traditional dissolved air flotation, the advantages of the continuous and stable treatment of the oil bearing wastewater by the inclined plate dissolved air flotation process were verified, and the oil content of the treated water was below 10 mg/L.

Key words: Dissolved air flotation,    , Oily wastewater,    , Flotation process,   ,  Wastewater treatment

摘要： 研究了斜板溶气气浮法对油田含油污水的处理效果。根据不同的工艺参数条件, 包括斜板间距、 回 流比、 表面负荷、 絮凝剂投加、 气泡层厚度等, 设计试验, 研究斜板溶气气浮法对含油污水的处理效果变化, 确定最优 的参数值。针对某油田的采油污水处理, 对比于传统的溶气气浮法, 验证了斜板溶气气浮法处理含油污水的持续、 稳定的优越效果, 处理后水体含油量控制在1 0m g / L以下。

关键词: 溶气气浮,  , 含油废水, 气浮工艺,  , 污水处理