Overview of Common Solid-Phase Ozone Catalysts and Catalytic Mechanism in Waste water Advanced Treatment
In recent years,research and application of catalytic ozonation process is more extensive and in-depth in wastewater advanced treatment,because of high organic pollutants removal rate and good wastewater treatment effect.The core of the catalytic ozonation process is that under the action of the catalyst,the concentration of hydroxyl free radicals(·OH)is significantly increased,thus enhancing the effect of sewage treatment.One key point of catalytic ozonation process is catalyst development.In this paper,several solid-phase catalysts without support material and their catalytic effect and mechanisms are summarized,including metal and metal oxides(eg:iron,manganese,cerium,nickel,cobalt,and titanium)and carbon materials(eg:active carbon,carbon nano tube,and graphene).In addition,the possible problems in practical application of these catalysts are also analyzed.The review can provide a theoretical basis for the continuous development and application of catalysts in catalytic ozonation process.
catalytic mechanismmetal and metal oxidecarbon materialcatalytic ozonationwastewater advanced treatment
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