WATER CLEANING METHOD UTILIZING OZONE GAS AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To enable treatment from small capacity to large capacity by a same structure and to realize ozone treatment at a low cost by a simple structure, in water cleaning treatment utilizing ozone. SOLUTION: A hermetically closed space S is formed to the upper part in the tank 1 foated on the surface of the water while a water housing part is formed to the lower part in the tank 1 and low layer water is raised in the water housing part from below as ozone gas mixed water through an air lift pipe 2 by an air lift phenomenon while brought into contact with ozone gas. The ozone gas mixed water is separated into treated water and waste ozone gas in the water area in the tank to discharge the waste ozone gas to the outside of the tank while naturally discharging treated water from the discharge ports 8, 9 and 10 provided to the lower part of the tank.