基于群体平衡原理的絮凝反应模型  

Flocculation Reaction Model Based on Population Balance Principle

作　　者：周易[1] 雷挺[1] 郑志民[1] 郑国兴[1] 许嘉炯[1] 许龙[1] 蒋怀德[1] 王恒[2] 

机构地区：[1]上海市政工程设计研究总院<集团>有限公司,上海200092 [2]同济大学建筑设计研究院<集团>有限公司,上海200092

出　　处：《中国给水排水》2014年第21期54-57,共4页China Water & Wastewater

摘　　要：絮凝构筑物设计阶段普遍使用基于层流理论的甘布公式计算平均G值,对絮凝池内部细节设计缺乏紊流理论依据。为此,依据紊流理论,基于群体平衡原理,建立了完整的絮凝反应模型(Floc-SMEDI)。通过非定常湍流模型、多相流模型、群体平衡模型以及絮凝反应模型的耦合,模拟水处理絮凝阶段絮体的变化过程。经过多种池型的测试,该模型能有效模拟絮凝过程中絮体的变化情况,为絮凝池的优化设计以及新池型的研发提供了新依据。Camp formula theory of laminar flow is widely used to calculate the average G value in the design phase of flocculation structure, and there is lack of basis of turbulence theory for interior detail design of flocculation tank. A complete flocculation reaction model （Floc-SMEDI） was established based on the turbulence theory and the population balance principle. The change process of flocs during floccu- lation in water treatment was simulated by coupling transient turbulence model, multiphase model, popu- lation balance model and flocculation reaction model. After testing in various types of tanks, Floc-SMEDI could effectively simulate the change process of flocs during flocculation, which provided new basis for optimization design of flocculation tanks and development of new tanks.

关 键 词：絮凝反应 群体平衡模型 水处理仿真 

分 类 号：TU991.2[建筑科学—市政工程] X703[环境科学与工程—环境工程]