在这项研究中获得的结果加强了臭氧氧化/生物过滤的潜力 控制有机物、臭氧副产品（OBP）和氯化消毒副产品 （DBP）形成前体。总共有六种卤乙酸（HAA6）和三卤甲烷 过滤器中测得的（TTHM）符合试验第1阶段的要求 消毒副产品规则。大多数基质在空的3分钟内被移除 床上接触时间（EBCT）和一般情况下，额外的接触时间对治疗效果的影响很小 提高生物过滤器的性能。溶解有机碳（DOC）被去除至 在所有过滤器中，臭氧副产物的去除率均达到30%和高水平（即65%至84%）， 不管温度如何。第二阶段臭氧氧化的实施导致 显著节约臭氧，同时保持相似的CT信用和生物过滤器性能 比一级生物过滤更有效。处理中臭氧氧化放置的优化 train使应用的臭氧减少了20%。生物量和微生物活性 测量结果与过滤器性能密切相关。过滤器在低温下工作 经过适当的驯化后，温度和环境过滤器的性能相同。包括10个参考文献、表格和图表。

The results obtained during this study reinforced the potential of ozonation/biofiltration to control organics, ozone byproducts (OBP) and chlorinated disinfection byproducts (DBP) formation precursors. A total of six halaoacetic acids (HAA6) and total trihalomethanes (TTHM) measured in the filters were in compliance with Stage 1 of the Disinfection Byproduct Rule. Most substrates were removed within 3 minutes of empty bed contact time (EBCT) and, in general, additional contact times contribute very little to enhance biofilter performance. Dissolved organic carbon (DOC) was removed up to 30% and high removal of ozone byproducts was obtained in all filters (i.e., 65 to 84%), regardless of temperature regime. Implementation of second-stage ozonation resulted in significant ozone savings while maintaining similar CT credit and biofilter performance than first-stage biofiltration. Optimization of ozone oxidation placement in the treatment train resulted in a reduction of 20% in applied ozone. Biomass and microbial activity measurements correlated well with filter performance. Filters operated at cold temperatures performed as well as the ambient filters, after proper acclimation. Includes 10 references, tables, figures.