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设计了一套动力学模拟装置,研究了有机高分子絮凝剂CG-A与无机高分子混凝剂PAC配合去除油田含油废水中超微细颗粒(＜5 μm). 该装置由旋流混合器、流态化沉淀塔、沙滤池组成, 处理能力为200L/h. 当单独投加PAC时, 出水的微细颗粒数为68 000个/L, 滤膜系数为13～16, 而PAC与CG～A配合使用时,出水的微细颗粒数为11 000个/L, 滤膜系数为40～60, 显示CG～A和流化床沉淀塔具有良好的去除超微细颗粒的能力. 还讨论了强化混凝的机理.“,”In this research, polyaluminium chloride(PAC) and natural organic flocculant CG-A were applied tOremove superfine particulates (less than 5 μm) from oil field wastewater in a dynamic simulating device which consisted of spiral-flow mixer, fluidized sedimentation tower and sand filter. The device could dispose 200 liters of wastewater per hour and the mechanisms of flocculation were studied. When PAC and CG-A were used synergistically, the number of total particulates of final effluent was 11000 per liter, membrane factor (MF) value was 40～60, however, in a similar way except that CG-A was omitted, the twOvalues of disposed wastewater were 68000 and 13～16 respectively. The experiment results showed that CG-A and fluidized sedimentation tower were very efficient in removing superfine particulates from water.