| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fluidized-bed method and a facility for treating waste water aerobically, wherein suspended microbes undesired to be accumulated can be discharged, and a carrier which is made low in specific gravity due to a biological film stuck thereto, can be prevented from being discharged. <P>SOLUTION: The facility for treating waste water aerobically is provided with: a reactor part 11 constituted so that an inner tube 15 for an airlift is arranged in a reactor main body 14 to which a waste water inflow pipe 13 is connected; a gas collection tube 21 which is arranged above the reactor part 11 and used for collecting gasses and overflowing waste water and the carrier; a separator part 12 constituted so that a precipitation layer 24 for separating waste water from the carrier is formed between the gas collection tube 21 and the upper tube part 20 of the reactor main body 14; a precipitation tube 26 arranged in the precipitation layer 24 for dividing the inner periphery of the precipitation layer from the outer periphery thereof; a drainage regulation member 34 arranged between the precipitation tube 26 and the upper tube part 20 of the reactor main body 14 for making a draining area variable to adjust an upward stream on the outer peripheral side of the precipitation layer 24. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
