新型高级氧化技术在污水处理中的应用

为了能够对污水中有毒难生物降解的有机污染物进行更加有效的处理，采用了一种V-O型高级催化氧化技术，通过试验初步探讨了其催化机理、催化性能和活性及其影响因素。试验结果表明，在自制的6种催化剂中，V-O／SiO2／N2显示了较好的催化性能和活性；其催化机理为催化剂和臭氧反应。生成了氧化性极强的羟基自由基；催化臭氧化时间、催化剂用量、进气臭氧浓度、体系pH值等因素均对降解产生一定的影响。研究结果为该技术在环境保护领域的应用前景提供了可靠的理论根据。

Application of advanced oxidation in sewage disposal

In order to decompose organic contaminates effectively,six kinds of solid catalysts were made for catalytic ozonation of organic waste water,with silicon dioxide,titanium dioxide and zirconium dioxide as carrier,which were calcine in oxygen and nitrogen.The results show that the catalytic activity of V-O/SiO2/N2 is good.The function mechanism of VO catalyst is catalytic decomposition of ozone to produce highly active hydroxy radical,researched by experiments of adsorption and contacts.The time of catalytic ozonation,dosage of catalysts,concentration of ozone and pH affected the reactions.The research provides theoretical basis for the application prospect in the field of environmental protection.