Application of Covalent Organic Framework Nanofiltration Membrane in Waste water Treatment
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.
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