膜科学与技术

聚合物渗透汽化脱盐膜的研究进展

作者：闫佳华，曹兵，李培，张睿

单位： 1北京化工大学化学工程学院；2北京化工大学材料科学与工程学院，北京 100029

关键词： PV膜，脱盐，海水淡化，渗透汽化

出版年,卷(期):页码： 2023,43(4):172-183

摘要：

高盐废水的资源化利用是工业界和学术界的研究热点。膜法脱盐是实现高盐废水资源化利用的有效方法。近年来，针对脱盐设计的渗透汽化膜（PV）的水通量是有机溶剂脱水的几十倍以上。如果能将PV的高截盐率、高水通量的优势与低品质热源有效结合，PV脱盐有望为高盐废水的资源化利用提供有力的支撑。高渗透通量、高截盐率、运行稳定且适于处理成分复杂的高浓盐水的PV脱盐膜仍是目前的研究热点。本文总结了近5年聚合物渗透汽化脱盐膜的研究进展，主要包括PV脱盐膜常用的材料、膜材料的分子结构设计及其改性方法、PV膜的脱盐性能等方面的内容。

Utilization of highly salty wastewater is a hot topic both in industry and academia. Membrane desalination is an effective method to fulfill this requirement. In recent years, water fluxes of pervaporation membranes (PV) designed for desalination have been dozens of times higher than that of PV membranes used for organic solvent dehydration. If low quality heat source is available for PV desalination process, this technology has a great potential for recycling highly salty wastewater. The key problem of PV desalination technology is still the lack of membrane materials with high flux, high salt rejection, excellent stability and suitable for treating concentrated brine solutions with complex composition. This paper summarizes the research progress of polymeric pervaporation desalination membranes in recent 5 years, including commonly used membrane materials, membrane material designs and modification methods, desalination performance and other aspects.

闫佳华（1999—），女，河北省邢台市，硕士研究生，研究方向为渗透汽化分离膜。E-mail：yanjiahua2021@163.com

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