气浮接触区气泡-颗粒碰撞效率影响因素分析  

Influential factor analysis of the bubble-particle collision efficiency in the contact zone of dissolved air flotation

作　　者：王静超[1] 马军[2] 刘芳[2] 

机构地区：[1]天津市自来水集团有限公司,天津300040 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《工业水处理》2008年第9期66-69,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(59825106)

摘　　要：对气浮接触区气泡-颗粒碰撞过程及其动力学模型进行了深入分析,并重点讨论了颗粒尺寸、气泡尺寸、水温、颗粒密度等参数对碰撞效率的影响。通过此项研究,可进一步加深对气浮净水机理的认识,对实际气浮净水工艺的设计、运行有较强的指导意义。The dynamic model and process of bubble-particle collision in the contact zone of dissolved air flotation （DAF） has been analyzed. The effects of the parameters, such as the sizes of particles and bubbles, water temperature, particle density, etc. on the collision efficiency are discussed emphatically. It shows that deeper understanding about the mechanism of air flotation water purification is obtained. It is beneficial to the design and operation of the DAF technology.

关 键 词：气浮 接触区 气泡 颗粒 碰撞效率 

分 类 号：TG174.2[金属学及工艺—金属表面处理]