摘要
国内外超声场强化膜分离的研究日益增加,本文介绍了附加超声场强化膜滤过程的原理,以及超声强化膜滤过程的两种理论模型。阐述了影响超声辅助膜工艺处理效果的因素,主要有超声频率、超声场强、溶液性质、错流速度、温度、操作压力和超声作用方式等。介绍了超声强化膜滤研究中采用的新技术,主要有SEM和声致荧光法。最后列举了超声与几种其他工艺联合使用强化膜处理的工艺,如超声-电场、超声-活性炭、超声-MBR工艺等。
The researches of membrane separation strengthened with ultrasound at home and abroad are increasing.In this paper,the theory of membrane filtration strengthened with ultrasound as well as two models is introduced.It suggests that the performance depends on the factors such as ultrasound frequency,ultrasound intensity,solution property,cross-flow velocity,temperature,pressure and the action mode of ultrasound emitter.New technologies adopted in researches such as scanning electron microscope（SEM） and sonoluminescence are introduced.Finally it lists the processes of membrane treatment strengthened by ultrasound combined with some technologies else such as ultrasound-electric field process,ultrasound-active carbon process and ultrasound-MBR process.
出处
《四川环境》
2011年第1期126-132,共7页
Sichuan Environment
基金
建设部水体污染控制与治理科技重大专项(2008ZX07425-007)
关键词
超声
膜分离
强化
膜污染
Ultrasound
membrane separation
strengthen
membrane fouling
