
摘要:净水资源短缺已成为人类可持续发展过程中面临的重要挑战之一,膜分离技术在污水资源化领域具有高效、易操作等显著优点。首先介绍了膜分离技术的分类,其中纳滤膜的分离机理为尺寸筛分效应和道南排斥效应。随后,重点阐述了共价有机框架(COFs)纳滤膜在海水淡化、工业废水处理及重金属废水处理中的应用。最后,总结了膜分离在水处理过程中的瓶颈问题,并对COFs纳滤膜的工业化应用进行了展望。
关键词:膜分离;共价有机框架;纳滤膜;水处理
Abstract: The shortage of water
purification resources has become one of the important challenges in the
process of sustainable development of human beings. Membrane separation
technology has significant advantages in the field of resourcezation of waste
water, such as high efficiency and easy operation. Firstly, the classification
of membrane separation technology is introduced. The separation mechanism of
nanofiltration membrane is size sieving effect and Donan exclusion effect.
Then, the application of covalent organic frameworks (COFs) nanofiltration
membrane in seawater desalination, industrial wastewater treatment and heavy
metal wastewater treatment is emphasized. Finally, the bottleneck problem of
membrane separation in water treatment process is summarized, and the industrial
application of COFs nanofiltration membrane is prospected.
Key words: membrane separation; covalent organic frameworks; nanofiltration
membrane; water treatment
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