在安大略省基奇纳的曼海姆水处理厂，对使用强化混凝提高后沉降臭氧氧化系统的消毒能力（C x T）进行了全面调查。使用多元线性回归评估不同水质、环境和工程参数对臭氧接触器中平均臭氧（O3）浓度（C avg）的影响。研究发现，转移O3剂量、沉淀水pH值、沉淀水不可蒸煮有机碳浓度、流速和水温对C avg有显著影响。 对于测试的特定水，模型预测表明，与传统的混凝相比，在强化混凝条件下运行工厂可以显著提高臭氧系统的消毒能力。模拟结果还表明，流速（即接触时间）对CxT的影响取决于O3的衰减速率。对于快速O3衰变条件，模型预测，随着流速的增加（即接触时间的减少），计算出的C x T会增加。包括41个参考文献、表格、图表。

Use of enhanced coagulation to improve disinfection capabilities (C x T) of a postsedimentation ozonation system was investigated at full scale at the Mannheim Water Treatment Plant in Kitchener, Ontario. Multiple linear regression was used to assess the effects of different water quality, environmental, and engineered parameters on the average ozone (O3) concentration (C avg) in the O3 contactor. It was found that C avg was significantly affected by the transferred O3 dose, the settled water pH, the settled water nonpurgeable organic carbon concentration, the flow rate, and the water temperature. For the specific water tested, model predictions indicated that operation of the plant under enhanced coagulation conditions could substantially improve the disinfection capacity of the ozone system, compared with conventional coagulation. Modeling results also showed that the effect of flow rate (i.e., contact time) on C x T depended on the rate of O3 decay. For rapid O3 decay conditions, models predicted an increase in calculated C x T with increasing flow rate (i.e., decreased contact time). Includes 41 references, tables, figures.