旋转剪切强化膜过滤技术研究进展  

Progress in rotary shear-enhanced membrane filtration process

作　　者：吕斯濠[1] 秦琦[2] 张杰琳[3] 范洪波[1] 梁志辉[1] 

机构地区：[1]东莞理工学院化学与环境工程学院,广东东莞523808 [2]中国环境科学研究院工程设计中心,北京100012 [3]华南理工大学环境科学与工程学院,广东广州510006

出　　处：《化工进展》2012年第11期2373-2383,共11页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金项目(20906014)

摘　　要：对旋转剪切强化膜过滤(RSEMF)技术的组件形式、剪切强化机理、渗透特性以及技术经济性评价等方面的研究进展进行了综述,分析了该技术的优缺点。阐述了激光流场测速技术和计算流体力学模拟对认识RSEMF的剪切强化机理、临界膜通量与单位通量能耗率对于评价RESMF的渗透特性与经济可行性的重要意义。指出RSEMF的研究应着重解决如何提高膜表面剪切强化作用的效果、简化膜组件的结构、提高有效膜面积的填充密度、降低单位通量能耗率以及膜组件的单位售价等问题。建议RSEMF技术的发展一方面要关注组件的优化、创新,另一方面要在特定物料的处理以及不同技术的集成方面进行更多的尝试。This paper reviewed the module types：shear enhancing mechanism,permeability characteristics and economic evaluation of rotary shear-enhanced membrane ？ltration process（RSEMF）.The advantages and drawbacks of the process were analyzed.It is recommended that the application of laser surveying instrument and computational fluid dynamics should be adopted for flow field observation and shear enhancing mechanism analyzing,and the critical flux and speci？c energy consumed per m3 of permeate are useful to analyze the permeability and evaluate the advantages of RESMF.To improve the performances of RESMF,more researches that are detailed should be conducted to investigate shear rate enhancement,module structure simplification,effective membrane surface increase,speci？c energy consumption decrease and the system cost.In addition,development of new modules,treatment of special solution with high concentration and the integration of RESMF and other types of membrane modules should also be considered as important factors.

关 键 词：动态过滤 旋转膜组件 剪切强化 渗透特性 

分 类 号：TQ028.8[化学工程]