By such that while turning after the water to be treated an inlet portion inlet is 0.5 or less plug flow and to flow part outlet dispersion (Dispersion Number) discloses a turn-flow ozone contact tank so that the contact time is increased to improve the treatment efficiency.
Tank 200 to the inner turning Joe-flow contact with ozone according to the embodiment of the present invention having a flow area; After the water to be treated or the water containing ozone to be treated flowing inlet 300 is connected to one side of the water tank 200 to flow while turning in the flow space of the water tank 200; And the other outlet (400) connected to the water tank 200 to the water outlet by the ozone treatment; Is configured, including the water tank may flow is dispersed in the (200) (Dispersion Number) is to increase the contact time to improve the treatment efficiency to be 0.5 or less plug flow, the inlet 300 is the tank ( 200), the momentum flux (M) of water to be treated with the water or ozone to be processed containing flowing to achieve a water main flow direction with a predetermined angle and connected to the water tank 200 through the inlet 300 in the 2m ⁴ / hr ² to 70m may be ^4/2 hr.
Present invention by the configuration as described above can reduce the dispersion can be in the main flow direction of the water is allowed to flow while turning in the ozone contact tank, and Article ozone contacting water to be treated within the to be treated by more than 0.5, the process in the water to be able to ensure a plug flow from the tank ozone contact, and the contact time of the water from the ozone contact tank to be treated can be increased, and the water treatment efficiency sets of ozone contact can be improved, and thus is reduced the amount of ozone can have, a disinfection by-products of the water treatment can be reduced.