FIELD: household waste water biological activation purification. SUBSTANCE: the invention presents a method of household waste water biological activation purification and a installation for the method realization. The method is dealt with household waste water biological activation purification by an active sludge being in the suspension state and may be used in the detached small dwellings, cottages, farm-houses. The method of the household waste water biological activation purification by an activated sludge provides for two phases of operation of the indicated installation. In the first phase the raw water from the leveling tank is pumped over into an biological activation tank. Then from it the biologically purified water is running down in a settling tank, and from it - into the chamber with the porous filter and then into a tank for the storm water. Completely purified water is exported and operation of the installation is stopped. The leveling tank and the chamber with the porous filter are previously filled in with water by no more than 50 % of volume, and the biological activation tank and the chamber of stabilization of silt by no more than on 100 %. In the second phase they realize pumping a raw water from the leveling tank into the biological activation tank, and the silt is pumped over into the damper of the chamber of stabilization of silt; an overflow of the water displaced from the chamber of stabilization of silt - into the leveling tank; pumping the silt from the biological activation tank over into the leveling tank; pumping the settled water over into the upper section of the chamber with the porous filter; pumping the polluted water and foam out into the leveling tank. The installation for purification of the household waste water contains: a housing with a lid; located in it the leveling tank with active sludge and inlet pipes of the household waste water; a gauge to measure the water operational level; an aerator; a pump placed in a tubular filter for pumping the silt over; a pump placed in a tubular filter for pumping the raw water into the biological activation tank containing an air delivery with an aerator; a pump for pumping silt over and a settler with a large-bubbled aerator and a U-shaped air lift; an aeration chamber with the porous filter; a chamber of stabilization of silt with a damper; a storm water tank and a control unit. The technical result: production of the high-quality purified waste water, decrease of power inputs and an increase of operational reliability of installation and decrease of labor input. EFFECT: the invention allows to produce the high-quality purified waste water, to decrease power inputs and to increase the installation operational reliability and to decrease the labor input. 2 cl, 2 dwg
