Reactor for biological sewage purification

摘要

PCT No. PCT/CZ94/00006 Sec. 371 Date Aug. 11, 1995 Sec. 102(e) Date Aug. 11, 1995 PCT Filed Feb. 7, 1994 PCT Pub. No. WO94/18131 PCT Pub. Date Aug. 18, 1994Reactor for biological sewage purification having a tank with a casing and a bottom surface and a funnel-shaped member in the tank. An activation space is defined between the casing and the funnel-shaped member and a separation space is defined inside the funnel-shaped member with a passage in the funnel-shaped member for communication between both spaces. A partition extends from the casing to the funnel-shaped member. A recirculation means defines an inlet communicating with the separation spaces and an outlet communicating with the activation space. A circulation circuit is formed for circulating fluid between the activation space and the separation space.