C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/08 (2006.01) C02F 3/02 (2006.01) C02F 3/12 (2006.01)
Patent
CA 2221721
A 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 comprises a cylindrical screen (13) and a liquid-collecting means (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 means is a pipe or a gutter having liquid-collecting holes, which is capable of collecting a liquid at a plurality of positions in the cylindrical screen. The carrier-separating and liquid-collecting mechanism may further comprise 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 and contact with the cylindrical screen. A surface of the cylindrical screen is covered with a bactericidal substance or an algicidal substance.
Mécanisme de séparation de supports et de récupération d'eau d'un équipement de traitement des eaux usées comportant un bassin de traitement dans lequel un micro-organisme immobilisé sur des substrats se trouve en suspension. Le mécanisme comporte un filtre cylindrique (13) et un dispositif de récupération d'eau (14) disposés à l'intérieur, et est disposé dans le bassin de traitement de telle manière que l'axe du filtre est sensiblement horizontal. Le dispositif de récupération est un tuyau ou une canalisation comportant des orifices permettant de recueillir de l'eau provenant de différentes parties du filtre. De plus, il peut être muni d'un mécanisme rotatif permettant de maintenir le filtre et de faire tourner de façon intermittente le filtre autour de son axe, ainsi que de brosses (18) fixées de façon à se trouver en parallèle avec le filtre et en contact avec celui-ci. Le cylindre est enduit d'une substance bactéricide ou algicide.
Katsukura Noboru
Tochikubo Eiji
Yamada Takehiko
Ebara Corporation
Riches Mckenzie & Herbert Llp
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