THE TOWER-TYPE SMALL SIZED BIOFILTER Russian patent published in 2004 - IPC

FIELD: purification of household economy sewage and sewage with highly concentrated organic impurities. SUBSTANCE: invention presents the tower type small-sized biofilter , that has a working chamber with a lid, the lower perforated bottom, a nozzle made of Rashig rings, the upper distributive drain pan with openings, the system of artificial forced ventilation, the pipeline for supply of an incoming water. The ratio of cross-sectional area to the operating height is near or exceeds 1:6 at the cross-sectional area of 0.5-1.2 m sq. Above the working chamber there is a stream dissector with openings and two branch-pipes located under the lower perforated bottom: one is linked with the system of the incoming ventilations, and other has a butterfly cap with a rotation axis made in the form of a bolt for operation in the mode of a natural ventilation . There is a hydraulic lock made in form of a bent pipe mounted on an outlet pipeline. The stream dissector is mounted on the pipeline of supply of initial sewage and has a latch. The upper distributive drain pan has a stopper ring on its perimeter. The lid of the working chamber has the overhead outtake branch-pipe rising over the roof of the building. EFFECT: improved conditions of ventilation, increased oxidative power and resistance against vibration caused by quantities of flows and pollutions. 3 cl, 2 dwg