非均相催化臭氧化去除水中有机物

hemical oxidation is defined as the method with the usage of oxidants for the mineralization or the oxidation byproducts production of water contaminants. As a advanced oxidation technology for water treatment, ozonation has been a significantly promising water treatment process for the remove of organic contaminants from water. Catalytic ozonation has recently received much attention because ozonation alone does not result in the total mineralisation of micro-organic pollutants presenting in resource water. Heterogeneous catalytic ozonation is based on the ozonation enhancement in the presence of solid metals, metal oxides or metals/metal oxides on supports, activated carbon and so on. In this paper, the chemical properties of ozone and reaction of ozone with organic compounds in water are briefly discussed, and catalytic ozonation with metal oxides and the mechanism investigations are introduced in detail including titanium oxide, iron oxide, manganese oxide, aluminum oxide, zinc oxide, copper oxide and noble metal oxide. The paper also summaries the development of research on catalytic ozonation by activated carbon. It presents the developmental direction of heterogeneous catalytic ozonation in the future.