Zhang Ruiyang, Huang Yu, Sun Chunbao, Xiaozhen Liang, Bentian Xinsi, Wang Zhenjun
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
Ultrason Sonochem. 2019 Jul;55:341-347. doi: 10.1016/j.ultsonch.2018.12.041. Epub 2018 Dec 31.
In this paper, the mechanism of enhanced membrane separation by ultrasound is analyzed. The main factors affecting the separation of enhanced membrane by ultrasonic technology is studied, the application and research progress of ultrasonic technology in membrane separation are studied. The conclusion are (a) cavitation caused by ultrasonic radiation is the main factor that increases the permeation flux of dextran solution (b) higher intensity of sound is helpful to the cleaning of the film; (c) ultrasound enhancement is related to temperature and operating pressure; (d) the film assembly shell material also affect the ultrasonic effect. In addition, the influence of ultrasonic wave on membrane structure is also discussed. Result indicates that the membrane separation process under the action of ultrasound does improve its permeability, but sometimes ultrasound can also cause damage to the membrane. Application of ultrasonic techniques for enhancing the separation process of membrane is also reviewed.
本文分析了超声强化膜分离的机理。研究了影响超声技术强化膜分离的主要因素，探讨了超声技术在膜分离中的应用及研究进展。结论如下：（a）超声辐射产生的空化作用是提高葡聚糖溶液渗透通量的主要因素；（b）较高的声强有助于膜的清洗；（c）超声强化与温度和操作压力有关；（d）膜组件外壳材料也会影响超声效果。此外，还讨论了超声波对膜结构的影响。结果表明，超声作用下的膜分离过程确实提高了其渗透性，但有时超声也会对膜造成损伤。还综述了超声技术在强化膜分离过程中的应用。
