紫外-高级氧化法处理天然有机物的研究进展

Research Progress in Treatment of Natural Organic Matter by Ultraviolet-Advanced Oxidation Processes

水环境中的天然有机物(NOM)含量约为总有机碳含量的一半,含有大量的醌基、羧基、羰基、氨基等基团,导致水体可生化性很差。NOM能够与氯和金属离子结合生成消毒副产物(DBPs)及其它毒性更大的污染物,对环境产生巨大威胁。紫外-高级氧化法(UV-AOPs)能有效去除NOM,减少DBPs的生成,对控制水处理过程中NOM造成的膜污染具有积极作用。对UV-AOPs处理NOM的研究进展进行了综述,并展望了其应用与发展前景。

The content of natural organic matter(NOM)in the water environment is about half of the total organic carbon content,and NOM contains a large number of quinone,carboxyl,carbonyl,amino and other groups,resulting in poor biodegradability of water body.Moreover,NOM can combine with chlorine and metal ions to generate disinfection by-products(DBPs)and other more toxic pollutants,which pose a huge threat to the environment.Ultraviolet-advanced oxidation processes(UV-AOPs)can effectively remove NOM,reduce the generation of DBPs,and have a positive impact on the control of membrane pollution caused by NOM in the water treatment process.In this paper,we review the research progress of NOM treatment by UV-AOPs,and put forward the application and development prospects.