催化臭氧氧化技术及其应用

Catalytic ozonation technology and application thereof

催化臭氧氧化技术作为一种绿色、环保、高效的高级氧化技术被广泛应用于难生物降解废水的深度处理。本文介绍了非均相催化臭氧氧化技术的原理;分析了反应体系pH、载体种类、活性金属种类和负载量、臭氧投加量及反应时间等因素对催化臭氧氧化效果的影响;对比了臭氧和催化臭氧氧化技术对不同废水的处理效果;总结了近年来国内催化臭氧氧化技术的实际应用情况。指出:影响催化臭氧氧化技术工业应用的主要问题是臭氧产生效率和催化剂的催化效率。

As a green,environmentally friendly and highly efficient advanced oxidation technology,catalytic ozonation technology is widely used in advanced treatment of refractory wastewater.This paper introduces the principle of heterogeneous catalytic ozonation technology,analyzes the factors affecting catalytic ozonation,such as:reaction system pH,carrier type,active metal species and loading amount,ozone dosage and reaction time.The treatment effect of ozonation and catalytic ozonationon different kinds of wastewater are compared.The domestic pilot-scale and practical application of catalytic ozonation technology in China in recent years are summarized,and it is pointed out that the main problem affecting the industrial application of catalytic ozonation technology is the generation efficiency of ozone and the catalytic efficiency of catalyst.