微纳米气泡控制膜污染研究进展

膜污染是阻碍膜分离技术大规模推广应用的主要问题之一,膜污染控制技术一直都是膜科学领域的研究热点.其中,基于气液两相流的膜污染防控技术已经得到了诸多研究和广泛应用.微纳米气泡因其不同于普通大气泡的独特物理化学性质,近年来在各个领域被广泛关注,而微纳米气泡控制膜污染的研究也日益活跃.文中综述了气液两相流控制膜污染技术的相关...

Research Advances on Micro-Nano Bubbles for Membrane Fouling Control

Membrane fouling is one of the main problems hindering the large-scale promotion and application of membrane separation technology.The research on controling technology of membrane fouling has always been a hotspot in the field of membrane science,and controlling technology of membrane fouling based on gas-liquid two-phase flow has been widely studied and applied.While micro-nano bubbles have unique physical and chemical properties that are different from ordinary bubbles,which makes them widely concerned in various fields in recent years,and research on controlling membrane fouling by micro-nano bubbles has become increasingly active.In this review,related research results of ordinary gas-liquid two-phase flow technology are covered.The effect and mechanism of micro-nano bubbles on controlling membrane fouling in membrane process of microfiltration,ultrafiltration,reverse osmosis,membrane distil-lation and other membrane processes are summarized.The key scientific problems in the application of micro-nano bubbles are analyzed,and future research direction of micro-nano bubbles in the field of controlling membrane fouling is also prospected.