| 摘要 |
PURPOSE: A pressure-floatation bath is provided to stabilize the flow of dissolved air circulating water by arranging a rotary paddle at the flowing path of the dissolved air circulating water and rotatably passing the dissolved air circulating water through the paddle. CONSTITUTION: A pressure-floatation bath includes an auxiliary floatation bath(110) floating the floc of feed water and a main flotation bath(120) removing the floc. A circulating pump(220) circulates a part of treated water as circulating water. A dissolved air circulating water generating unit(230) generates dissolved air circulating water by mixing the circulating water and air and feeds the dissolved air circulating water to a circulating water inlet. A circulating water distributing pipe(113) distributes the dissolved air circulating water to the auxiliary flotation bath. A spraying nozzle sprays the dissolved air circulating water from the circulating water distributing pipe to the auxiliary flotation bath. A plurality of rotary paddles(115) is arranged at the path of the sprayed dissolved air circulating water and rotates based on the dissolved air circulating water. |
