Research on Catalytic Oxidation-Membrane Technology for Organic Wastewater Treatment
Improper treatment of biorefractory organic wastewater control of difficult to degrade organic wastewater can seriously affect the ecological environment and human health.The development of deep treatment technology for organic wastewater has become a research hotspot.Catalytic oxidation-membrane separation technology has attracted much attention as a deep water purification technology that can combine physical separation and chemical oxidation at the same time.Catalytic membrane-coupled advanced oxidation processes(AOPs)can not only promote the removal of pollutants by improving the oxidation performance,but also inhibit membrane contamination by strengthening the generation of free radicals to realize"self-cleaning".In this paper,it summarizes the preparation methods of catalytic membranes according to the status of domestic and international research progresses,and focuses on the performance and mechanism of their coupling with photocatalysis,Fenton oxidation,persulfate activation,ozone oxidation and electrocatalytic oxidation processes.Meanwhile,a systematic comparison is made for the influencing factors,advantages and their problems of catalytic membrane-coupled oxidation processes.Finally,suggestions and outlooks are presented based on the future directions and research challenges of catalytic oxidation-membrane technology.
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