压力驱动膜分离过程的操作模式及其优化  

The operation modes of pressure-driven membrane processes and their optimization

作　　者：姚红娟[1] 王晓琳[1] 

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《膜科学与技术》2003年第6期38-43,共6页Membrane Science and Technology

基　　金：国家高技术研究发展计划资助项目(2001AA327050)

摘　　要：压力驱动膜过程主要包括微滤、超滤、纳滤和反渗透4种,操作时可采用浓缩和渗滤两种模式.典型操作过程由预浓缩、恒容渗滤和后浓缩3个阶段组成,对其进行优化,以使总过程时间最短和渗滤操作时渗滤溶剂的消耗量最小.Pressure-driven membrane processes include microfiltration, ultrafiltration, nanofiltration and reverse osmosis. These membrane separation processes are usually operated in concentration and diafiltration modes. A typical separation and purification process consists of three phases: preconcentration, constant -volume continuous diafiltration and post-concentration. The whole process can be optimized by minimizing both the overall processing time and the diafiltration solvent volume required during diafiltration.

关 键 词：压力驱动 膜分离 操作模式 浓缩 渗滤 

分 类 号：TB43[一般工业技术]