基于紫外高级氧化工艺缓解超滤膜污染的研究进展

Research Progress of UV-Based AOP for Mitigation of UF Membrane Fouling

以超滤为代表的膜分离技术在水处理领域应用广泛,但在实际应用中仍面临着膜污染难题,制约了超滤的进一步发展。近年来,基于紫外(UV)的高级氧化工艺在缓解超滤膜污染方面受到了越来越多的关注。基于此,文中分析了UV与臭氧(O_(3))、过氧化氢(H_(2)O_(2))、氯(Cl)和过硫酸盐(PS)氧化技术联用的原理及特点,综述了基于UV的高级氧化工艺在缓解超滤膜污染方面的应用。结果表明,该工艺提高了净水效率,延长了超滤膜的使用寿命。最后,分析了UV氧化耦合膜滤技术在水厂中的应用潜力,对UV高级氧化在缓解膜污染方面的应用和发展作出总结和展望。

Membrane separation technology represented by ultrafiltration(UF)is widely used in the field of water treatment,but it still faces the problem of membrane fouling in practical applications,which restricts the further development of UF.In recent years,UV-based AOP has received more and more attention in alleviating UF membrane fouling.Based on this,the principles and characteristics of the combination of UV and ozone(O_(3)),hydrogen peroxide(H_(2)O_(2)),chlorine(Cl)and persulfate(PS)oxidation technology are analyzed,the application of UV-based advanced oxidation process in alleviating UF membrane fouling is reviewed and demonstrated.The results show that the process improves water purification efficiency and extends the life of UF membranes,the application potential of UV oxidation coupled membrane filtration technology in water plants is analyzed,and finally the application and development of UV advanced oxidation in mitigating membrane fouling are summarized and prospected.