强化混凝法去除废水中超微细颗粒物(英文)  

Removal of Superfine Particulates From Wastewater by Enhanced Flocculation

作　　者：萧锦[1] 谢雄飞[1] 汪晓军[1] 朱云[1] 

机构地区：[1]华南理工大学环境科学与工程系,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2000年第8期44-49,共6页Journal of South China University of Technology(Natural Science Edition)

摘　　要：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 (<5μm) .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2 0 0L/h .当单独投加PAC时 ,出水的微细颗粒数为 6 80 0 0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 110 0 0个 /L ,滤膜系数为 40～ 6 0 ,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 to remove 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 two values 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.

关 键 词：强化混凝 油田废水 超微细颗粒 废水处理 

分 类 号：X741.031[环境科学与工程—环境工程]