非均相催化臭氧化处理纺织印染废水研究进展

Research Progress on the Treatment of Textile Printing and Dyeing Wastewater by Heterogeneous Catalytic Ozonation

近年来,越来越多的纺织印染废水未经妥善处理排放到水体中,造成污染环境并威胁人们的健康,而非均相催化臭氧化技术在水体脱色、消毒、降解有毒有机污染物等方面有优异的处理效果。综述了金属氧化物型催化剂及负载金属氧化物型催化剂的研究进展,从活性位点和反应途径2个方面对催化机理进行了探讨,分析了反应体系中会对催化剂的催化性能产生影响的因素,并对臭氧非均相催化剂未来的发展进行了展望,以期为今后非均相催化臭氧化技术的发展提供理论借鉴。

In recent years,more and more textile printing and dyeing wastewater is discharged into water without proper treatment,thus polluting the environment and threatening people’s life and health.Heterogeneous catalytic ozonation has excellent treatment effect in water decolorization,disinfection and degradation of toxic organic pollutants.In this paper,the research progress of metal oxide catalyst and supported metal oxide catalyst is reviewed.The catalytic mechanism is discussed from two aspects of active site and reaction pathway,and the factors that affect catalytic performance in the reaction system are analyzed.The future development of ozone heterogeneous catalyst is prospected in order to provide theoretical reference for the development of heterogeneous catalytic ozonation technology in the future.