| 摘要 |
PCT No. PCT/JP96/01364 Sec. 371 Date Mar. 9, 1998 Sec. 102(e) Date Mar. 9, 1998 PCT Filed May 23, 1996 PCT Pub. No. WO96/37443 PCT Pub. Date Nov. 28, 1996A carrier-separating and liquid-collecting mechanism in a liquid-waste treatment apparatus having a treatment tank in which carriers having microorganisms immobilized thereon are suspended. The carrier-separating and liquid-collecting mechanism includes a cylindrical screen (13) and a liquid-collecting devices (14) disposed in the cylindrical screen. The cylindrical screen is provided in the treatment tank, such that the axis of the cylindrical screen extends in a substantially horizontal direction. The liquid-collecting device is a pipe or a gutter having liquid-collecting holes, and is capable of collecting liquid at a plurality of positions through the cylindrical screen. The carrier-separating and liquid-collecting mechanism may further include a rotation mechanism for supporting the cylindrical screen and intermittently rotating the cylindrical screen on the axis thereof and a brush (18) which is fixed so as to be in parallel to the cylindrical screen in contact with the cylindrical screen. A surface of the cylindrical screen is covered with a bactericidal substance or an algicidal substance.
|
