膜分离技术在再生水中的应用及膜污染研究进展

传统的废水处理工艺在一定程度上成功地处理了排放的废水.然而,改善废水处理工艺是必要的,以便使处理后的废水能重复使用.膜技术已成为从不同的废水中回收再利用水的最佳选择.介绍了超滤膜、反渗透膜、微滤膜和纳滤膜的特征,阐述了这些膜在再生水中的研究近况以及膜污染的类型和清洗方法,最后展望了膜工艺在再生水中的应用与发展.

The Application of Membrane Separation Technology in Reclaimed Water and the Progress of Membrane Fouling Research

The traditional wastewater treatment technology has successfully treated the discharged wastewater to some extent. However, improvements in wastewater treatment processes are necessary so that treated wastewater can be reused in industry, agriculture and households. Membrane technology has become the best choice to recycle water from different waste water. Membrane separation technology has the advantages of easy operation and easy control. It will not produce secondary pollution in the separation process. The characteristics of ultrafiltration membrane, reverse osmosis membrane, microfiltration membrane and nanofiltration membrane are introduced. The research status of these membranes in reclaimed water and the types and cleaning methods of membrane fouling are described. The application and development of membrane technology in reclaimed water are prospected.