根据小型实验研究结果 ,分析了水中腐植酸的氧化反应特性 ,探讨了用 E2 54 ,TOC以及二者的比值E2 54 / TOC评价臭氧化功效的可能性 .臭氧化的主要功效不在于降低以 TOC为代表的水中有机物总量 ,而是改变了有机物的性质和结构 ,降低了有机物的紫外吸光度 E2 54 ,改善了有机物的生化降解性 . According to the results of small experimental studies, the oxidation reaction characteristics of humic acid in water were analyzed, and the possibility of ozonation was evaluated by E2 54, TOC and the ratio of E2 54 / TOC.The main effect of ozonation is not to reduce the oxidation of humic acid by TOC As the representative of the total amount of organic matter in the water, but changed the nature and structure of organic matter, reducing the UV absorbance of organic matter E2 54, improving the biodegradability of organic matter.