| 摘要 |
<p>An aeration tank of an organic liquor which comprises an outer tank (1) and an aeration pipe (2). The aeration pipe (2) is equipped with suction holes (3) at a lower peripheral wall thereof and scatter holes (4) at an upper peripheral wall thereof, and incorporates an air scatter head (6) connected to a blast pipe (5) at the lower part. The treated liquor decomposed biologically inside the outer tank (1) is exposed to air inside the aeration pipe (2), and a part of deposited organic matters and the resulting bubbles are scattered and returned into the outer tank (1) from the scatter holes (4) and are delivered to a sludge sedimentation tank. Thus, a plurality of aeration tanks are consecutively disposed so that the supernatant liquid of the bubbles sent from the first aeration tank is serially aerated and cycled to the remaining aeration tanks and is purified. In this way, pure water can be obtained and can be utilized as washing water of sheds and stalls or a liquefied fertilizer.</p> |
