| 摘要 |
PURPOSE: A precipitation tank in which a mixing screw is installed is provided to minimize structure of a water treatment device by reducing the size of a reaction tank, and to discharge generated sludge easily by chemical reaction. CONSTITUTION: A precipitation tank in which a mixing screw is installed includes a main body(1), a purification tank(3), a sludge collecting hopper(5), a wastewater inflow pipe(6), and a screw(7). The purification tank is installed at an upper circumference of the main body, and stores the purified water. The sludge collecting hopper is installed at the bottom of the main body. A sludge discharging pipe(4) is installed at the sludge collecting hopper. The wastewater inflow pipe is installed at the center of the main body, and the bottom of the wastewater inflow pipe is located on the bottom of the main body. The screw is installed at the inside of the wastewater inflow pipe, and rotated by a motor.
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