研究了中试规模臭氧气泡扩散器接触器内的混合条件以及混合对臭氧残留浓度的影响。17英尺高，6英寸-直径接触器在逆流和顺流水流和气流中运行。当接触器在并流模式下运行时，它装有1-in。塑料鞍座。示踪剂和臭氧氧化试验表明，接触器中的混合条件从接近塞流到充分混合不等。随着气体流量的增加和水流量的减少，分散度增加，后者的依赖性更强。使用并流填充接触器进行试验时，观察到的分散度最低。开发了一个计算机模型，用于预测扩散数、臭氧浓度分布、臭氧残留量和CxT参数。观测到的示踪剂曲线和预测的示踪剂曲线之间的不一致可能是由于短时间的- 但总的来说，该模型很好地预测了臭氧残留。包括19个参考文献、表格和图表。

Mixing conditions inside a pilot-scale ozone bubble-diffuser contactor and the effect of mixing on ozone residual concentrations were investigated. The 17-ft-high, 6-in.-diameter contactor was operated with both counter-current and cocurrent water and gas flows. When the contactor was operated in the cocurrent mode, it was packed with 1-in. plastic saddles. Tracer and ozonation tests showed that mixing conditions in the contactor ranged from nearly plug-flow to well mixed. Dispersion increased as the gas flow rate increased and as the water flow rate decreased, with the latter dependency being stronger. The lowest dispersions were observed for tests run with the cocurrent packed contactor. A computer model was developed and used to predict dispersion numbers, ozone concentration profiles, ozone residuals, and C x T parameters. Disagreements between observed and predicted tracer curves might have been caused by short-circuiting, but in general the model predicted ozone residuals well. Includes 19 references, tables, figures.