OZONE CONTACTOR HYDRODYNAMICS

Tracer tests were conducted at the 6,000 pounds of ozone per day Tucso n, CAP Water Treatment Plant in Tucson, Arizona. The tests were design ed to determine T-10 values through the contactors at various operatin g conditions. The tests were modeled using three techniques. Peclet Nu mber was calculated for each of the runs, which would indicate the hyd rodynamic conditions inside the ozone contactor. The results indicated that the increase in water flow rate and the number of cells with gas flow increased Peclet Number. The flow rate of liquid seemed to impac t the Peclet Number more than gas flow. The headless in each cell appe ared to be important in controlling the distribution of liquid and gas through the cell. A correlation was developed between the product of gas and liquid phase Reynolds Number and Peclet Number.