WASTE WATER TREATMENT APPARATUS Russian patent published in 2014 - IPC C02F3/02 

FIELD: chemistry.

SUBSTANCE: apparatus comprises an aeration tank/clarification tank with pipes for feeding waste water and removing clarified liquid and a bioreactor, wherein the aeration tank/clarification tank is in form of an open-top cylindrical vessel with a bottom, which consists of an aeration chamber with a device for feeding compressed air and a clarification chamber, formed by dividing the cylindrical vessel by a vertical inner partition wall into an inner cylindrical cavity and an outer circular cavity, characterised by that the bioreactor is combined with aeration chamber and is built into the inner cavity of the aeration tank/clarification tank and is a hollow cylinder mounted on legs which rest on the flat bottom of the aeration tank/clarification tank; inside the cylinder there are stacks of alternating inclined surfaces in form of cups with a hollow bottom that are rigidly attached to the wall of the cylinder and cones which are mounted to the wall by fixable tension rods, wherein the pipe for feeding waste water is situated directly in the bioreactor in the top part thereof and the device for feeding compressed air is situated in the lower part thereof, under the bottom stack of cups, and is in form of a pipe with a porous ceramic tip, wherein the clarification chamber it located in the circular cavity of the aeration tank/clarification tank and also has a self-contained air supply source located in the lower part thereof, and the atomiser of the treatment mechanism is in form of a centrifugal atomiser, having a housing consisting of two coaxial, interlinked cylinder bushings: larger-diameter bushing and smaller-diameter bushing, wherein inside the smaller-diameter bushing, there is a coaxially arranged auger which is rigidly connected to the inner surface of said bushing, for example pressed into said bushing, wherein the outer surface of the auger is a helical groove, and inside the auger there is an opening with a screw thread, and in the larger-diameter bushing there is a coaxially arranged nozzle, which is rigidly mounted in said bushing, for example by a thread connection, through a gasket seal, wherein inside the nozzle there is a coaxial cylindrical opening which runs into an axially symmetric diffuser which is connected to the cylindrical chamber formed by the inner surface of the smaller-diameter bushing and the end surface of the auger.

EFFECT: high quality and efficiency of treating waste water by improving contact of the sludge-water mixture with atmospheric oxygen.

5 dwg