SU971820A1 - Aerotank and settling tank with jet aeration - Google Patents

Description

The horizontally circular movement of the mixture in the chamber of aeraz III under the influence of the centrifugal force creates the conditions for its willowing (increasing pressure) in the periphery region (near the outer wall of the aeration chamber) and reducing the concentration of active la in the inner zone (at the entrance to the gravitational zone); near the wall, its walls), which promotes more complete; the clarification of water in the settling tank, and also makes it possible in general to increase the concentration of activated sludge in the aeration chamber and the resultant increase of the oxidizing power and effect of the installation. L / 1I get maximum value of 15

of the separation of the sludge mixture at the entrance to the gravity settling tank, as well as a more {uniform distribution of the rotational velocity of the syringe mixture over the height of the structure, the inlets of the submerged jets are located in the lower part of the aeration chamber for the entrance of the gravity tank to the settling tank of the aerated mixture. In this region, the highest centrifugal force takes place, which leads to uvedachesh. separation factor sludge mixture.

FIG. 1 depicts an aero-settling tank,: Mr-lanv; in fig. 2 shows a section A-A in FIG.

Aerotg to-sump with jet aeraidy. CodGrissGgg Kopnvc 1 cylindrical air cap, ring partition 2 with conical visor 3 dividing the aerotank: .ifl. Kaeru aerosc and in gravitational settling 5. forty 40, vertical pipeline 7 and tray 8 for collecting and putting in a clean turbine, nch {arms of a pion I pump 9 with a kiaor pipeline 10 and tangentially located suction pipe 1, inlet pipes 12 flooded their jet located tangentially to the lower part of the aerotank case at the level of the inlet of B, the gravity settling tank from the aeration chamber, outlet nozzles-aerators 13 for picking up free jets located above the surface of the liquid in the azrotechka at an angle of up to 60 °; pipeline 14 of the original waste water with an outlet nozzle, located obliquely, to the surface of the liquid in the aeration chamber in the direction of its rotation, pipe 15 to discharge excess active; silt.

Aero-sump with jet aerial work as follows.

 (stream waste water through pipe line1 ;;:.:, 1u 14 goes into aeration chamber 4, where: its displacement occurs with active sludge. The mixture is taken from the aerage chamber of i-seam through the suction pipe 11 of the caliper 9

the pitfall-pond settling tank is removed from the construction site. groom through the funnel 6, vertical pipe 7 and tray 8 for further processing. Excessive activated sludge is removed from the aeration chamber through a pipeline 15, which is flush at the bottom of the aeration chamber, tangentially to its body, which ensures a constant dose of activated sludge in the structure.

The proposed device has the most effective technology of mechanical separation of the sludge mixture, based on the use of centrifugal compaction of suspended impurities during the horizontal-circular movement of the fluid in the aeration chamber with subsequent clarification of the mixture in the gravity settling, which guarantees an effective two-stage separation of media.

The effect of separation of the sludge mixture, which is formed under the action of centrifugal forces as a result of horizontal circular movement of the fluid in the aeration chamber, allows the central part of the nitrogen tank to be used as a septic tank, and also to increase the dose of activated sludge in the aeration chamber by a factor of 2-3 by reducing its concentration (lighter (iii) at the entrance to the gravity settling tank, and, consequently, to increase the oxidative capacity and efficiency of the facility. Increasing the dose of activated sludge in the aeration tank makes it possible to reduce the size of the aeration tank by about 2 times.

Claims (1)

Invention Formula Aero tank-sump with Inkjet aeration, containing a round body in the plan, jet aerators in the form of nozzles above the liquid at an angle, a hydraulic pump, a suction pipe tangentially connected to the body, and a discharge pipe, pipe4 u7ioHkh: -a with a pump 9 to It is supplied through the pressure pipe 10 through the pipes 12 and the aerators 13 into the aeration chamber to create a horizontal-circular movement of the liquid and supply it with air (oxygen). The horizontal-circular movement of the sludge mixture creates in the aeration chamber under the action of centrifugal vultures its effect is divided w: better (increasing the dose of activated sludge) in the non-peripheral area (near the outside; -th cTSi-acH aeration chamber) at the entrance to the gravitational sedimentation x 5, where the liquid enters after the caazradia. The clarified liquid from the source conduit of primary no. 1 with exhaust nozzles, characterized in that, in order to increase the efficiency of use by increasing the dose of active sludge and the oxidizing power of the structure, it is equipped with a cylindrical partition not reaching to its bottom a visor, a vertical pipe, a funnel for collecting and discharging clarified water and located tangentially in the walls of the housing at the level of the visors of the coaxial partition inlet pipe with 6 pipes and The primary mixture is connected to the pressure pipe of the circulation pump, while the pipes of the source water pipeline are located obliquely to the surface of the liquid in the housing, which is equipped with a pipe of excess sludge attached tangentially to it. Sources of information taken into account in the examination 1. The Federal Republic of Germany patent No. 2404198, cl. C 02 C 1/10. 1978