METHOD OF SEWAGE WATER PURIFICATION AND DEVICE FOR ITS REALIZATION Russian patent published in 2004 - IPC

FIELD: residential waste waters purification. SUBSTANCE: the invention presents a method used for residential waste waters purification and is dealt with devices of biological activation purification of residential waste waters by an active silt, that may be applied for the isolated small dwellings, cottages and farm-houses. The method of residential waste waters purification provides for two phases of operation of the device. In the first phase the raw water is pumped over from a leveling tank into an activation tank, realize an overflow of the biologically purified water into a settler, and from it - into a chamber with a porous filter and into an open tank. Then the completely purified water is removed and the operation of the device is stopped. The leveling tank and the chamber with the porous filter preliminary are filled with water by no more than 50% and the activation tank and the settler of silt by no more than 100 %. In the second phase the raw water from the leveling tank is pumped over into the activation tank and the silt is pumped into the stabilizer of the silt stabilization chamber; free flow of the displaced water from the silt stabilizing chamber is running into the leveling tank , the silt is pumped over from the activation tank into the leveling tank, pumping the settled water is pumped over into the upper section of the chamber with the porous filter, the polluted water and froth is pumped out into the leveling tank. The device for purification of the residential waste waters has a body with a cover. The body contains the leveling tank with the active silt and an inlet pipeline of the waste water, a gage of the waters operational level, an aerator, a pump located in a tubular filter for silt pumping over, a pump located in a tubular filter for raw water pumping over into the activation tank, that has an air inlet with an aerator; a pump for silt pumping over and a settler with a large bulb aerator and a U-shaped airlift; an aeration chamber with a porous filter; a chamber of stabilization of silt with a stabilizer; a free flow tank and a control unit. The technical result: production of high quality purified waste water, decrease of power consumption, an increase of operational reliability of the device and decrease of labor input. EFFECT: the invention allows to produce the high quality purified waste water, to decrease power consumption and labor input, to increase operational reliability of the device. 2 cl, 2 dwg