反渗透膜硅垢形成机理及抗硅垢膜研究进展  

Formation mechanism of silica scaling on reverse osmosis membrane and research progress of anti-silica scaling membrane

作　　者：张军[1] 赵颂[1] 郝展 王志[1] 王纪孝[1] ZHANG Jun;ZHAO Song;HAO Zhan;WANG Zhi;WANG Jixiao(Chemical Engineering Research Center,School of Chemical Engineering and Technology,Tianjin University,Tianjin Key Laboratory of Membrane Science and Desalination Technology,State Key Laboratory of Chemical Engineering(Tianjin University),Tianjin Collaborative Innovation Center of Chemical Science and Engineering,Tianjin 300350,China)

机构地区：[1]天津大学化工学院化学工程研究所天津市膜科学与海水淡化技术重点实验室化学工程联合国家重点实验室(天津大学)天津化学化工协同创新中心,天津300350

出　　处：《膜科学与技术》2022年第2期128-137,共10页Membrane Science and Technology

基　　金：国家自然科学基金项目(21776205)。

摘　　要：反渗透(RO)技术具有低能耗、易操作等优势,已被广泛应用于水处理过程,但膜结垢特别是硅垢导致的膜通量下降、膜寿命缩短问题严重制约着RO技术的进一步推广应用.本文首先阐述了硅垢形成机理,包括溶液中硅酸聚合过程和RO膜表面硅垢形成过程;然后对抗硅垢膜的研究进展进行了概述,如表面化学改性、界面聚合和层层自组装等;最后对未来RO系统膜硅垢问题的研究方向提出建议.Reverse osmosis(RO) technology has been widely used in water treatment processes due to the advantages of low energy consumption and easy operation. However, membrane scaling, especially silica scaling, has caused problems such as the reduced membrane flux and the shortened membrane life, which severely restrict the further popularization and application of RO technology. Firstly, the formation mechanism of silica scale is expounded, including the polymerization process of silicic acid in solution and the formation process of silica scale on the surface of RO membranes. Then, the research progress of anti-silica scaling membranes is summarized from the methods of surface chemical modification, interfacial polymerization and layer-by-layer self-assembly. Eventually, some suggestions are put forward for the future research direction of silica scaling on RO membranes.

关 键 词：反渗透 硅垢 形成机理 抗硅垢膜 研究进展 

分 类 号：TQ028.8[化学工程]