Apparatus for purifying waste water

FIELD: chemistry.

SUBSTANCE: apparatus for purifying waste water comprises an aeration tank-clarifier 1 with pipes for inlet 3 of waste water and outlet 4 of clarified liquid and a bioreactor 9. The aeration tank-clarifier 1 is in the form of an open-top cylindrical vessel with a bottom 2, consisting of an aeration chamber 5 with a device for feeding compressed air and a clarification chamber 6. The bioreactor 9 is integrated with the aeration chamber and is a hollow cylinder mounted on legs 10, resting on the flat bottom 2 of the aeration tank-clarifier. Inside the bioreactor 9 there are layers of alternating tilted surfaces in the form of cups 11 with a hollow bottom and cones 12. The device for feeding compressed air is located under the lower layer of cups 11 and is in the form of a socket 8 with a porous ceramic ferrule. The clarification chamber 6 is located in the annular cavity of the aeration tank-clarifier and has in the lower part a self-contained air source. The purification mechanism, which is in form of annular tubes 15, is equipped with liquid sprayers.

EFFECT: invention improves quality and efficiency of purifying waste water.

5 dwg

The invention relates to an integrated wastewater treatment and is intended for purification of wastewater from individual homes or groups of homes, as well as small, medium and large settlements.

Closest to the claimed device is known to the effluent treatment plant consisting of an aeration tank-clarifier with feeder pipelines wastewater and removal of the clarified liquid and a bioreactor. The aeration tank-clarifier is made in the form of an open top tank, separated by a vertical inner shell to the internal chamber lightening caps and outer chamber aeration with jet aerators in its upper part. The aeration tank-clarifier connected to the bioreactor using a pipe (patent RF №2469000, CL 02F 3/02 - prototype).

The disadvantages of the known installation is that in the upper part of the chamber aeration is the most contaminated fluid, mixed with fresh, newly admitted flows. It is from the upper part of the chamber aeration precariously ilovelena mixture enters the chamber of clarification. The camera bleaching lightens the fluid due to the long settling, that is the mechanical separation of precipitation, it takes about 18-19 hours. Activated sludge in this camera does not work, since the presence of oxygen is possible only in the upper part of the camera osvet is to be placed (in the top 2 caps). While the aeration chamber, where only active sludge is used inefficiently because precariously ilovelena mix is here a relatively short time. With such limited time process aeration was not provided with sufficient oxidation of organic substances and, therefore, of a high quality. In conditions of irregular formation of wastewater per day (for example, individual house) installation with such a small time aeration can't work, because in the absence of effluent for 8-10 hours will perish 80-90% of the microorganisms due to the lack of nutrients. With the inflow of wastewater re-starts the process of reproduction of microorganisms, therefore, in the initial period of sewage will be poor quality. Consequently, at similar facilities, it is imperative to build additional structure equalizing tank effluent, increasing their cost. In addition, this known device has a large energy consumption due to the feed effluent pump to greater heights and especially during the concentration of the effluent oxygen by the method of repeated recirculation of the liquid in the aerator, airlifting effect, reset and re-feed activated sludge.

Technically attainable result - improving the quality and efficiency of wastewater treatment accounts for the improved contact ilovedasey mixture with oxygen.

This is due to the fact that in the inventive device for the purification of wastewater containing aeration tank-clarifier with feeder pipelines wastewater and removal of the clarified liquid and the bioreactor, in which the aeration tank - clarifier is made in the form of an open top cylindrical tank with a bottom consisting of a camera aeration with compressed air and the camera clarification formed by dividing a cylindrical tank vertical inner wall on the inner cylindrical cavity and the outer ring, characterized in that the bioreactor combined with aeration chamber and is integrated into the internal cavity of the aeration tank-clarifier and is a hollow cylinder, mounted on legs resting on the flat bottom of the aeration tank-clarifier, inside a cylinder are circles alternately alternating slanted surface in the form of cups with a hollow bottom, rigidly attached to the wall of the cylinder and cones, which are attached to the wall using flexible rods, and the pipe feeding the wastewater is directly in the bioreactor in its upper part, and the compressed air in the lower part, under the lower tier of the cups, and comes in a tube with a porous ceramic tip, while the actual Luggage clarification is located in the annular cavity of the aeration tank is Svetlitsa and also has an independent source of air supply; located in its lower part, and the spray liquid of the cleaning mechanism; designed as a circular pipe, includes a hollow body with nozzle and the Central core, and the body is made with a channel for supplying a liquid and contains coaxially rigidly associated sleeve, pinned at the bottom of the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her conical socket set with an annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with the ring cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the channel of the housing for supplying liquid to the conical socket in its lower portion rigidly attached to the outlet end of a round plate with at least seven radial petals that are angled in the direction of the annular gap between the nozzle and the socket, and on the side surface of the socket is made of at least two rows of cylindrical draw selinah holes, with axes lying in planes perpendicular to the axis of the socket, and each row is made at least three holes, and in the end a circular plate made of at least three conical throttle openings with the angle at the vertex of the cone lying in the range from 45° to 90°, and on the inner surface of the cylindrical throttle holes formed on the side surface of the socket, there are spiral grooves.

Figure 1 presents the aeration tank-clarifier in section; figure 2, 3 are examples of the aeration tank-clarifier in the form of a family of bioreactors; figure 4 shows a filter drive figure 5 - scheme of the spray ring on the pipe.

The inventive device consists of an aeration tank-clarifier 1 with a flat bottom 2, which has a supply pipe 3 wastewater and drainage 4 clarified liquid (figure 1). The aeration tank-clarifier consists of 2 chambers: the internal aeration 5 with compressed air and outer annular clarification 6 containing tube 7 for Autonomous air supply. The compressed air into the aeration chamber 5 is made in the form of a pipe 8 with a porous ceramic tip. Bioreactor 9 combined with aeration chamber and is a hollow cylinder, mounted on legs 10, which are based on a flat bottom 2. Inside the bioreactor 9 posted by layers alternately che is abysinia slanted surface in the form of cups 11 with a hollow bottom and cones 12. Cup 11 is rigidly attached to the wall of the bioreactor 9, for example, rivets or welded connection. Cones 12 are suspended to the wall of the bioreactor using a flexible rod 13. The angle of inclination to the horizon of the walls of the cups 11 and cones 12 30-45°. Removal with the inclined surfaces of the cups 11 and cones 12 precipitation formed by the oxidation products of organic substances (especially at small angles (30°)in the bioreactor 9 includes a cleaning mechanism, made in the form of an annular pipe with nozzles 14 (figure 5)through which atomized liquid or gas. Ring pipe 14 are attached to the inside of the lateral surfaces of the cups and cones and is connected to a common collector (collector) 15. Sprayed water or air is washed by successive inclined surface located under the respective annular pipe 14, dumping her remains oxidized organic substances. Water or air is regulated by valves (not shown). Rinse (or blowing) installation is in the process without interruption of the bioreactor. Wash is a stream flowing with little speed, while the heavier sludge residues remain on inclined surfaces, giving them the vital activity of microorganisms. At the bottom of the aeration tank-clarifier 1 is a pipe 16 for removal of the collected precipitation.

For the sing of the claimed device in waste waters of different degrees of contamination and different amounts of possible execution (figure 2 and 3) aeration tank-clarifier in the form of a family of bioreactors 17, located in one total capacity of 18.

This bioreactors 17 have different volumes due to differences in the diameters of their hollow cylinder and, therefore, different power. In the Central part of the aeration tank-clarifier distribution is the Cup 19 with a tray 20 having a drain tube 21 connected to the respective bioreactors 17 for submission to the wastewater them.

Filter drive 22 (Fig 3) consists of an open top vessel with horizontal filter nozzle 23, which is located at some distance from its bottom, which is formed adfilternone space 24. Filter drive 22 has a pipe 25 to supply the purified liquid and the air source 26, which are located under the filter nozzle in the space 24. In adfilternone space 24 can be supplied to the air (for additional oxidation of organic substances). The amount of air can be regulated by means of shut-off and control valves (not labeled). Above the filter nozzle 23 is drive 27 and pump 28. The filter material (gravel, sand, polymeric materials of the type "UNDER"), which is made from filter cap, flushed each time a selection is made of the sludge from the bottom of the filter drive through pipe 29.

The spray fluid (figure 5) contains a hollow body 30 with the channel 32 d is I the supply of liquid and coaxially, rigidly connected with the housing sleeve 31 mounted in the lower part of the nozzle, made in the form of two-stage cylindrical sleeve 33, the upper cylindrical notch 35 which are connected by threaded connection with a Central core consisting of a cylindrical part 36 and coaxially with her conical socket 37, mounted with annular gap 38 relative to the inner surface of the cylindrical sleeve 33. The annular gap 38 is connected at least with three radial channels 34, made in a two-stage sleeve 33 that connects the annular cavity 43 formed by the inner surface of the sleeve 31 and the outer surface of the upper cylindrical stage 35, and the annular cavity 43 is connected with the channel 32 of the housing 30 for supplying a fluid.

To the conical socket 37 in its lower portion rigidly attached to the outlet end of a round plate 40 with at least seven radial petals 41, which is bent in the direction of the annular gap 38 between the nozzle and the socket. On the side of the socket is made of at least two rows of cylindrical throttle openings 39, with axes lying in planes perpendicular to the axis of the socket 37, and each row is made at least three holes 39. In the end a circular plate 40 is made of at least three konicek the x throttle hole 42 with the angle at the vertex of the cone, lying in the range from 45° to 90°. On the inner surface of the cylindrical throttle openings 39, is made on the lateral surface of the socket 37, has helical grooves, which will increase melkodispersnoi fluid flow through the formation of turbulent eddies.

Installation for sewage treatment works in the following way.

Wastewater enters the aeration tank-clarifier 1 (figure 1) by gravity through a pipeline 3, getting directly in the bioreactor 9 and washing alternately alternating slanted surface of the cups 11 (inside) and cones 12 (outside). The slope of the cones and the walls of the cups equals 30°-45°. Between the cone and the wall of the bioreactor left a gap. The ratio of the areas of the bottom of the cups to the area of the annular gap between the walls of the bioreactor and the cone, as well as their relation to the cross-sectional area of the bioreactor and the number of cups and cones determines the speed and pattern of movement of the fluid inside the bioreactor 9. Getting from the pipe 3 into the upper Cup of the bioreactor, the fluid moves radially toward the center with a certain acceleration. Starting from the bottom of the Cup, the liquid abruptly changes its direction to the opposite radially to the circumference, i.e. the cylindrical wall of the bioreactor. The motion is repeated cyclically, and the number of cycles corresponds to the number of cups and the taper of the century In the thicker the liquid in the bioreactor having different speed. Aspiration of the fluid to come to equilibrium leads her (according to the law of statics) in a chaotic turbulent motion that is required for good mass transfer mixture liquid-air-yl. This is achieved without the influence of external forces, but only at the expense of structural features of the bioreactor. Liquid; washing successively inclined wall surfaces of the bioreactor 9 moves down. At the same time up, prototechno fluid moves the air forced through the porous ceramic tip of the nozzle 8. As a result, inside the bioreactor is a good mass transfer preferiranog ilovedasey mixture, mass oxidation of organic matter and precipitation down. A small excess pressure of the air supplied to the aeration in the semi-enclosed space (in contrast to the known invention) allows to do without air loss, using it efficiently and effectively for the treatment of wastewater. The complete oxidation of organic substances is also achieved by lengthening the aeration time to 10-12 hours. Further, the liquid past the bottom wall of the bioreactor 9, shimmers in the camera clarification 6, where through the tube 7 offline introduced air, which speeds up the lightening process fluid in the chamber 6, accompanying his docile who eat the remaining liquid organic substances. Clarified liquid rises in the annular space camera clarification 6. Fell to the bottom of the aeration tank-clarifier 1 precipitation periodically removed through the pipe 16. The clarified liquid through the pipeline 4 is discharged into the filter memory 22 (Fig 3) and the pipe 25 enters adfilternone space 24. The treated fluid passes the filling nozzle 23 and falls into the storage tank 27. Clean water from the drive 27 as necessary is pumped, for example, by means of a submersible pump 28. The purified water can obezzarazhivatelya using sodium hypochlorite.

In mnogofaktornykh aeration tanks-clarifiers (2 and 3) with the proposed mechanism for the distribution of liquid loading of each bioreactor is continuously and proportionally to their capacity (corresponding to their volume), regardless of the daily fluctuations in the volume and contamination of the incoming wastewater. Complementing the aeration tanks-clarifiers different "family" of bioreactors, you can ensure the creation of installations required power depending on the degree of contamination and volume of wastewater. In mnogofaktornykh aeration tanks - clarifiers wastewater coming into the Central distribution of the bowl 19 and rise upward to the discharge tray 20 located strictly on the same level, and evenly spread on them. With each tray 20, the via drain tube 21 wastewater spill in bioreactors 17. Continuous and simultaneous spill all bioreactors in proportion to their power regardless of variations in flow of wastewater per day is achieved through the creation of uniform flow velocities along the length of the tray 20 by reducing the cross-sectional area of the tray, change the sectional area of the discharge tubes 21 in proportion to the capacity of bioreactors and install the drain tube 21 with a threshold height of 3-4 cm, adjustable tip on the threaded connections (not labeled).

The sprayer (figure 5) is installed in a working condition in a vertical position.

Fluid under pressure 0,4...0,8 MPa is supplied to the body cavity 30 and then goes in two directions: first, in the annular cavity 43 through the radial channels 34 in the annular gap 38 between the nozzle and the Central core. When the pressure at the input of more than 0.2 MPa, the liquid is dispersed on the outer conical surface of the socket 37 with the formation of the liquid film, which is not detached from the outer surface of the socket 37. The acceleration of the liquid in the conical surface is accompanied by a decrease in her static pressure and vaporization and release of soluble gases. This phenomenon is additionally prepares the liquid to fragment into small drops. When reaching the liquid flow counter currents flowing from cilindric the ski throttle openings 39, multiple fragmentation of film formation of fine-dispersed phase.

The second direction, which supplies the fluid through the channel 32 for supplying a fluid into the cavity of the Central core, and then into the conical socket 37, from which part of the liquid will expire through the radial holes 39; and the conical part through the throttle hole 42. When this happens multiple crushing trickling streams of liquid flowing from the throttle hole.

Depending on the power required and the degree of treatment are selected certain bioreactors.

Device for the purification of wastewater containing aeration tank-clarifier with feeder pipelines wastewater and removal of the clarified liquid and the bioreactor, in which the aeration tank-clarifier is made in the form of an open top cylindrical tank with a bottom consisting of a camera aeration with compressed air and the camera clarification formed by dividing a cylindrical tank vertical inner wall on the inner cylindrical cavity and the outer ring, while the bioreactor combined with aeration chamber and is integrated into the internal cavity of the aeration tank-clarifier and is a hollow cylinder, mounted on legs resting on the flat bottom of the aeration tank-clarifier, inside the cylinder are tiered ass is b alternating slanted surface in the form of cups with a hollow bottom, rigidly attached to the wall of the cylinder and cones, which are attached to the wall using flexible rods, and the pipe feeding the wastewater is directly in the bioreactor in its upper part, and the compressed air in the lower part under the lower tier of the cups and is made in the form of a tube with a porous ceramic tip, while the actual Luggage clarification is located in the annular cavity of the aeration tank-clarifier and is also an independent source of air supply, located in its lower part, characterized in that the spray liquid of the cleaning mechanism, made in the form of an annular pipe includes a hollow body with nozzle and the Central core, and the body is made with a channel for supplying a liquid and contains coaxially rigidly associated sleeve, pinned at the bottom of the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her conical socket set with an annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with calcev the second cavity, formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the channel of the housing for supplying liquid to the conical socket in its lower portion rigidly attached to the outlet end of a round plate with at least seven radial petals that are angled in the direction of the annular gap between the nozzle and the socket, and on the side surface of the socket is made of at least two rows of cylindrical throttle openings with the axes lying in planes perpendicular to the axis of the socket, and each row is made at least three holes, and in the end a circular plate made of at least three conical throttle openings with the angle at the vertex of the cone lying in the range from 45° to 90°, and on the inner surface of the cylindrical throttle holes formed on the side surface of the socket, there are spiral grooves.

The invention relates to an integrated wastewater treatment and is intended for purification of wastewater from individual homes or groups of homes, as well as small, medium and large settlements.

Technically attainable result - improving the quality and efficiency of wastewater treatment by improving contact ilovedasey mixture with oxygen.

It reaches the I, that in the inventive device for the purification of wastewater containing aeration tank-clarifier with feeder pipelines wastewater and removal of the clarified liquid and the bioreactor, in which the aeration tank - clarifier is made in the form of an open top cylindrical tank with a bottom consisting of a camera aeration with compressed air and the camera clarification formed by dividing a cylindrical tank vertical inner wall on the inner cylindrical cavity and the outer ring, characterized in that the bioreactor combined with aeration chamber and is integrated into the internal cavity of the aeration tank-clarifier and is a hollow cylinder, mounted on legs resting on the flat bottom of the aeration tank clarifier, inside a cylinder are circles alternately alternating slanted surface in the form of cups with a hollow bottom, rigidly attached to the wall of the cylinder and cones, which are attached to the wall using flexible rods, and the pipe feeding the wastewater is directly in the bioreactor in its upper part, and the compressed air in the lower part, under the lower tier of the cups, and comes in a tube with a porous ceramic tip, while the actual Luggage clarification is located in the annular cavity of the aeration tank-clarifier and has also autono the significant source of air supply, located in its lower part, and the spray liquid of the cleaning mechanism, made in the form of an annular pipe includes a hollow body with nozzle and the Central core, and the body is made with a channel for supplying a liquid and contains coaxially rigidly associated sleeve, pinned at the bottom of the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her conical socket set with an annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with the ring cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the channel of the housing for supplying liquid to the conical socket in its lower portion rigidly attached to the outlet end of a round plate with at least seven radial petals that are angled in the direction of the annular gap between the nozzle and the socket, and on the side surface of the socket is made of at least two rows of cylindrical draw selinah holes, with axes lying in planes perpendicular to the axis of the socket, and each row is made at least three holes, and in the end a circular plate made of at least three conical throttle openings with the angle at the vertex of the cone lying in the range from 45° to 90°, and on the inner surface of the cylindrical throttle holes formed on the side surface of the socket, there are spiral grooves.

Device for the purification of wastewater containing aeration tank-clarifier with feeder pipelines wastewater and removal of the clarified liquid and the bioreactor, in which the aeration tank-clarifier is made in the form of an open top cylindrical tank with a bottom consisting of a camera aeration with compressed air and the camera clarification formed by dividing a cylindrical tank vertical inner wall on the inner cylindrical cavity and the outer ring, while the bioreactor combined with aeration chamber and is integrated into the internal cavity of the aeration tank-clarifier and is a hollow cylinder, mounted on legs resting on the flat bottom of the aeration tank-clarifier, inside the cylinder are tiered alternately alternating slanted surface in the form of cups with a hollow bottom, rigidly attached to the wall of the cylinder and cones, which are fastened to the extent the ke with flexible rods, moreover, the pipe feeding the wastewater is directly in the bioreactor in its upper part, and the compressed air in the lower part under the lower tier of the cups and is made in the form of a tube with a porous ceramic tip, while the actual Luggage clarification is located in the annular cavity of the aeration tank-clarifier and is also an independent source of air supply, located in its lower part, characterized in that the spray liquid of the cleaning mechanism, made in the form of an annular pipe includes a hollow body with nozzle and the Central core, and the body is made with a channel for supplying a liquid and contains coaxially rigidly an associated sleeve mounted in the lower part of the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her conical socket set with an annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with the ring cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindric the Russian stage, moreover, the annular cavity is connected with the channel of the housing for supplying liquid to the conical socket in its lower portion rigidly attached to the outlet end of a round plate with at least seven radial petals that are angled in the direction of the annular gap between the nozzle and the socket, and on the side surface of the socket is made of at least two rows of cylindrical throttle bores with axes lying in planes perpendicular to the axis of the socket, and each row is made at least three holes, and in the end a circular plate made of at least three conical throttle openings with the angle at the vertex cone lying in the range from 45° to 90°, and on the inner surface of the cylindrical throttle holes formed on the side surface of the socket, there are spiral grooves.