Integrated two-stage AO sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment devices, and discloses an integrated two-stage AO sewage treatment device which comprises a base, an anoxic tank is mounted at one end of one side of the upper surface of the base, and an aerobic tank communicated with the anoxic tank is mounted at one end of one side, close to the anoxic tank, of the upper surface of the base and far away from the anoxic tank. A sedimentation tank communicated with the aerobic tank is mounted on one side, far away from the aerobic tank, of one end, close to the aerobic tank, of the upper surface of the base; a moving frame is slidably mounted at the bottom in the sedimentation tank in the horizontal direction; when the integrated two-stage AO sewage treatment device is used, sediments generated in treated sewage can be concentrated, and the sediments generated in the moving frame in the sewage treatment device can be conveniently discharged, so that the sediments are prevented from being accumulated in the sewage treatment device; the sewage treatment effect of the sewage treatment device can be guaranteed, and normal use of the sewage treatment device is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment devices, specifically an integrated two-stage AO sewage treatment device. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater contains a large number of pollutants, and if discharged directly without treatment, it will cause serious pollution to natural water bodies (rivers, lakes, oceans, etc.). With the increasing scarcity of water resources, wastewater can be reused after treatment.

[0003] Two-stage AO wastewater treatment is a common wastewater treatment process. It can effectively remove organic matter and pollutants such as nitrogen and phosphorus from wastewater. Two-stage AO wastewater treatment consists of two sequentially operating wastewater treatment units. The A stage is an anoxic zone, which mainly removes pollutants such as nitrogen and phosphorus, while the O stage is an aerobic zone, which mainly removes organic matter. Through the degradation of organic matter and microbial activity in the two stages, the goal of efficient wastewater treatment can be achieved.

[0004] Currently, during the two-stage AO wastewater treatment process, sediment is generated in the treated wastewater. This makes it difficult to discharge the sediment generated in the wastewater treatment device, causing the sediment to accumulate inside the device. This not only affects the treatment effect but also the normal operation of the wastewater treatment device.

[0005] In view of this, we propose an integrated two-stage AO wastewater treatment device. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an integrated two-stage AO wastewater treatment device that can conveniently collect and discharge sediments generated in wastewater, solving the problem of inconvenient discharge of sediments generated within wastewater treatment devices in existing technologies.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An integrated two-stage AO wastewater treatment device includes a base. An anoxic tank is installed at one end of the upper surface of the base, and a stirring mechanism is installed in the middle of the anoxic tank. An aerobic tank connected to the anoxic tank is installed at the end of the upper surface of the base near the anoxic tank and away from the anoxic tank. An aeration mechanism is installed at the bottom of the aerobic tank. A sedimentation tank connected to the aerobic tank is installed at the end of the upper surface of the base near the aerobic tank and away from the aerobic tank. A movable frame is slidably installed at the bottom of the sedimentation tank in a horizontal direction. A retention hole is opened at the bottom of the sedimentation tank near the anoxic tank corresponding to the movable frame. The retention hole on the sedimentation tank is sealed to the movable frame. The top of the inner surface of the movable frame is sloped.

[0011] Preferably, a matching frame-shaped sealing gasket is fixed in the indwelling hole on the sedimentation tank. The inner surface of the frame-shaped sealing gasket is in a matching fit with the corresponding position on the moving frame. A hydraulic cylinder is installed at the bottom of the surface of the sedimentation tank away from the frame-shaped sealing gasket. The output rod of the hydraulic cylinder faces the sedimentation tank and penetrates the inner and outer surfaces of the sedimentation tank at the corresponding position. The end of the hydraulic cylinder output rod near the moving frame is fixedly connected to the corresponding position on the opposite surface of the moving frame.

[0012] Preferably, a first connecting pipe is installed between the lower sides of the middle of the opposite surfaces of the anoxic pool and the aerobic pool. Matching through holes are opened on the inner ring surface of the first connecting pipe on both the anoxic pool and the aerobic pool. A first delivery pump is installed in the middle of the first connecting pipe.

[0013] Preferably, a second connecting pipe is installed between the lower sides of the middle of the opposite surfaces of the aerobic tank and the sedimentation tank. Matching through holes are opened on the inner ring surface of the second connecting pipe on both the aerobic tank and the sedimentation tank. A second delivery pump is installed in the middle of the second connecting pipe.

[0014] Preferably, an outlet pipe is fixedly installed on the lower side of the middle of the surface of the sedimentation tank away from the aerobic tank, a valve is installed in the middle of the outlet pipe, and a matching through hole is opened on the inner ring surface of the sedimentation tank corresponding to the outlet pipe.

[0015] Preferably, the stirring mechanism includes a rotating rod rotatably mounted at the center of the inner surface of the anoxic tank away from the aerobic tank. Several stirring rods are fixedly fixed at intervals along the horizontal direction on both sides of the outer ring surface of the rotating rod. A rotating motor is installed at the center of the surface of the anoxic tank away from the aerobic tank. The output shaft of the rotating motor passes through the inner and outer surfaces of the anoxic tank at the corresponding position and is fixedly connected between the opposite ends of the rotating rod.

[0016] Preferably, the aeration mechanism includes a plurality of aeration heads spaced apart in the horizontal direction. A connected aeration pipe is installed in the middle of the lower surface of each aeration head. An aerator is installed on the side of the aerobic tank away from the sedimentation tank. The end of the aeration pipe away from the aeration head passes through the inner and outer surfaces of the aerobic tank at the corresponding position and is connected to the aeration interface on the aerator.

[0017] Preferably, the tops of the anoxic tank, aerobic tank, and sedimentation tank are all covered with matching covers, and a handle is fixed to the middle of the upper surface of each cover.

[0018] Compared with the prior art, this utility model provides an integrated two-stage AO wastewater treatment device, which has the following beneficial effects:

[0019] 1. This integrated two-stage AO wastewater treatment device helps to collect sediment generated in the treated wastewater and facilitates the discharge of sediment generated in the moving frame of the device, preventing sediment accumulation and ensuring the effectiveness of wastewater treatment. This also facilitates the normal use of the device.

[0020] 2. This integrated two-stage AO wastewater treatment device uses a sloping top on the inner side of the moving frame to allow sediment in the wastewater to settle inside the moving frame. The output rod of the hydraulic cylinder can drive the moving frame to move along the inner side of the frame-type sealing gasket inside the sedimentation tank towards the outer side of the sedimentation tank. The frame-type sealing gasket can seal the sedimentation tank between the sedimentation tank and the moving frame. When the moving frame moves, it can move the sediment inside the moving frame, which helps to discharge the sediment in the sedimentation tank. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the aerobic tank structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rotating rod structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the movable frame structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the stirring rod structure of this utility model.

[0026] The components are as follows: 1. Base; 2. Anoxic tank; 3. Aerobic tank; 4. First connecting pipe; 5. Second connecting pipe; 6. Outlet pipe; 7. First transfer pump; 8. Second transfer pump; 9. Valve; 10. Cover; 11. Handle; 12. Rotating motor; 13. Rotating rod; 14. Stirring rod; 15. Aerator; 16. Aeration pipe; 17. Aeration head; 18. Dwelling hole; 19. Frame-type sealing gasket; 20. Hydraulic cylinder; 21. Moving frame; 22. Sedimentation tank. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 An integrated two-stage AO wastewater treatment device includes a base 1. An anoxic tank 2 is installed at one end of the upper surface of the base 1. A stirring mechanism is installed in the middle of the anoxic tank 2. An aerobic tank 3, connected to the anoxic tank 2, is installed at the end of the upper surface of the base 1 near the anoxic tank 2 and away from the anoxic tank 2. An aeration mechanism is installed at the bottom of the aerobic tank 3. A sedimentation tank 22, connected to the aerobic tank 3, is installed at the end of the upper surface of the base 1 near the aerobic tank 3 and away from the aerobic tank 3. A movable frame 21 is slidably installed at the bottom of the sedimentation tank 22 in the horizontal direction. A retention hole 18 is opened at the bottom of the sedimentation tank 22 near the anoxic tank 2, corresponding to the movable frame 21. The retention hole 18 on the sedimentation tank 22 is sealed with the movable frame 21. The top of the inner surface of the movable frame 21 is inclined.

[0029] In this embodiment, a matching frame-shaped sealing gasket 19 is fixed inside the indwelling hole 18 on the sedimentation tank 22. The inner surface of the frame-shaped sealing gasket 19 is in a matching fit with the corresponding position on the moving frame 21. A hydraulic cylinder 20 is installed at the bottom of the surface of the sedimentation tank 22 away from the frame-shaped sealing gasket 19. The output rod of the hydraulic cylinder 20 faces the sedimentation tank 22 and penetrates the inner and outer surfaces of the sedimentation tank 22 at the corresponding position. The end of the output rod of the hydraulic cylinder 20 near the moving frame 21 is fixedly connected to the corresponding position on the opposite surface of the moving frame 21. The hydraulic cylinder 20 can drive the moving frame 21 to move horizontally. When the moving frame 21 moves horizontally, it will push out the sediment inside, so as to discharge the sediment inside the sedimentation tank 22. The frame-shaped sealing gasket 19 can seal the indwelling hole 18 on the sedimentation tank 22 and the moving frame 21, which can prevent leakage from occurring inside the sedimentation tank 22.

[0030] Furthermore, a first connecting pipe 4 is installed between the lower sides of the opposite surfaces of the anoxic tank 2 and the aerobic tank 3. Matching through holes are provided on the inner ring surface of the first connecting pipe 4 on both the anoxic tank 2 and the aerobic tank 3. A first delivery pump 7 is installed in the middle of the first connecting pipe 4. A second connecting pipe 5 is installed between the lower sides of the opposite surfaces of the aerobic tank 3 and the sedimentation tank 22. Matching through holes are provided on the inner ring surface of the second connecting pipe 5 on both the aerobic tank 3 and the sedimentation tank 22. A second delivery pump 8 is installed in the middle of the second connecting pipe 5. The first connecting pipe 4 facilitates communication between the anoxic tank 2 and the aerobic tank 3. The first delivery pump 7 can deliver the treated water from the anoxic tank 2 to the aerobic tank 3 through the first connecting pipe 4. The second connecting pipe 5 connects the aerobic tank 3 and the sedimentation tank 22. The second delivery pump 8 can deliver the treated water from the aerobic tank 3 to the sedimentation tank 22 through the second connecting pipe 5.

[0031] Furthermore, a water outlet pipe 6 is fixedly installed on the lower side of the surface of the sedimentation tank 22 away from the aerobic tank 3. A valve 9 is installed in the middle of the water outlet pipe 6. A matching through hole is opened on the inner ring surface of the sedimentation tank 22 corresponding to the water outlet pipe 6. The water outlet pipe 6 helps to discharge the treated water in the sedimentation tank 22, and the valve 9 can easily open and close the water outlet pipe 6.

[0032] In addition, the stirring mechanism includes a rotating rod 13 rotatably mounted on the middle of the inner surface of the end of the anoxic tank 2 away from the aerobic tank 3. Several stirring rods 14 are fixedly fixed at intervals along the horizontal direction on both sides of the outer ring surface of the rotating rod 13. A rotating motor 12 is installed on the middle of the surface of the end of the anoxic tank 2 away from the aerobic tank 3. The output shaft of the rotating motor 12 passes through the inner and outer surfaces of the corresponding position on the anoxic tank 2 and is fixedly connected to the opposite end of the rotating rod 13. The rotating motor 12 and the rotating rod 13 can drive the stirring rods 14 to rotate. The stirring rods 14 help to stir the sewage that needs to be treated in the anoxic tank 2, so as to facilitate the treatment of sewage.

[0033] In addition, the aeration mechanism includes several aeration heads 17 spaced horizontally. Each aeration head 17 has a connected aeration pipe 16 installed in the middle of its lower surface. An aerator 15 is installed on the side of the aerobic tank 3 away from the sedimentation tank 22. The end of the aeration pipe 16 away from the aeration head 17 passes through the inner and outer surfaces of the aerobic tank 3 at the corresponding position and is connected to the aeration interface on the aerator 15. The aerator 15 can aerate the aerobic tank 3 through the aeration pipe 16 and the aeration head 17, which helps to promote the reaction of organic matter in the wastewater with oxygen to remove organic matter.

[0034] It is worth noting that the tops of the anoxic tank 2, the aerobic tank 3, and the sedimentation tank 22 are all covered with matching covers 10, and handles 11 are fixed in the middle of the upper surface of each cover 10. The covers 10 help to shield and protect the tops of the anoxic tank 2, the aerobic tank 3, and the sedimentation tank 22, and the handles 11 help to place and remove the covers 10.

[0035] In use, the cover 10 on top of the anoxic tank 2 is removed by the handle 11, opening the top of the anoxic tank 2. Wastewater to be treated is then diverted into the anoxic tank 2, and microbial agents and sodium bicarbonate are added. The rotating motor 12 on the anoxic tank 2 is then turned on. The anoxic tank 2 supports and limits the rotating motor 12, facilitating stable operation. With the rotating motor 12 open, its output shaft drives the rotating rod 13 to rotate. The rotating rod 13 then drives the stirring rod 14 to rotate, mixing the wastewater, added microbial agents, and sodium bicarbonate. This ensures a uniform mixture, allowing the microbial agents and sodium bicarbonate to react with the organic matter in the wastewater in a denitrification reaction. Under anoxic conditions, denitrifying bacteria reduce nitrate nitrogen to nitrogen gas, thus achieving denitrification.

[0036] After the wastewater is treated in the anoxic tank 2, the first transfer pump 7 is turned on. When the first transfer pump 7 is turned on, it can transport the treated water in the anoxic tank 2 to the aerobic tank 3 through the first connecting pipe 4. The aerator 15 is also turned on. When the aerator 15 is turned on, it can aerate the wastewater in the aerobic tank 3 through the aeration pipe 16 and the aeration head 17, which helps to promote the reaction between organic matter and oxygen in the wastewater to remove organic matter. After the wastewater is treated in the aerobic tank 3, the second transfer pump 8 is turned on. When the second transfer pump 8 is turned on, it can transport the treated water in the aerobic tank 3 to the sedimentation tank 22 through the second connecting pipe 5, so that the wastewater settles in the sedimentation tank 22. Because the top of the inner side of the moving frame 21 is inclined, the sediment in the wastewater will settle to the inner side of the moving frame 21.

[0037] After the sediment in the sewage has settled, the equipment used for collecting the treated water is connected to the end of the outlet pipe 6 away from the sedimentation tank 22, and the valve 9 is opened. With the valve 9 open, the treated water at the top of the sedimentation tank 22 will be discharged through the outlet pipe 6 and the valve 9 to the equipment used for collecting the treated water. After the treated water is discharged, the hydraulic cylinder 20 on the sedimentation tank 22 is further opened. With the hydraulic cylinder 20 open, the output rod of the hydraulic cylinder 20 can drive the moving frame 21 to move along the inner side of the frame-type sealing gasket 19 inside the retention hole 18 on the sedimentation tank 22 toward the outer side of the sedimentation tank 22. The frame-type sealing gasket 19 can seal the gap between the retention hole 18 on the sedimentation tank 22 and the moving frame 21. When the moving frame 21 moves, it can drive the sediment inside the moving frame 21 to move, so as to push the sediment inside the moving frame 21 to the outer side of the sedimentation tank 22, which helps to discharge the sediment in the sedimentation tank 22.

[0038] During use, it helps to concentrate the sediment generated in the treated wastewater and facilitates the discharge of sediment generated in the moving frame 21 of this wastewater treatment device, so as to prevent the sediment from accumulating in this wastewater treatment device, which helps to ensure the treatment effect of this wastewater treatment device and is conducive to the normal use of this wastewater treatment device.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated two-stage AO wastewater treatment device, comprising a base (1), characterized in that: An anoxic pool (2) is installed at one end of the upper surface of the base (1). A stirring mechanism is installed in the middle of the anoxic pool (2). An aerobic pool (3) connected to the anoxic pool (2) is installed at the end of the upper surface of the base (1) that is close to the anoxic pool (2) and away from the anoxic pool (2). An aeration mechanism is installed at the bottom of the aerobic pool (3). A sedimentation tank (22) connected to the aerobic pool (3) is installed at the end of the upper surface of the base (1) that is close to the aerobic pool (3) and away from the aerobic pool (3). A movable frame (21) is slidably installed at the bottom of the sedimentation tank (22) in the horizontal direction. A retention hole (18) is opened at the bottom of the sedimentation tank (22) near the anoxic tank (2) corresponding to the movable frame (21). The retention hole (18) on the sedimentation tank (22) is sealed with the movable frame (21). The top of the inner surface of the movable frame (21) is inclined.

2. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: A matching frame-shaped sealing gasket (19) is fixed inside the indwelling hole (18) on the sedimentation tank (22). The inner surface of the frame-shaped sealing gasket (19) is in a matching fit with the corresponding position on the moving frame (21). A hydraulic cylinder (20) is installed at the bottom of the surface of the sedimentation tank (22) away from the frame-shaped sealing gasket (19). The output rod of the hydraulic cylinder (20) faces the sedimentation tank (22) and penetrates the inner and outer surfaces of the sedimentation tank (22) at the corresponding position. The end of the output rod of the hydraulic cylinder (20) near the moving frame (21) is fixedly connected to the corresponding position on the opposite surface of the moving frame (21).

3. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: A first connecting pipe (4) is installed between the lower sides of the opposite sides of the anoxic pool (2) and the aerobic pool (3). Matching through holes are opened on the inner ring surface of the first connecting pipe (4) on both the anoxic pool (2) and the aerobic pool (3). A first delivery pump (7) is installed in the middle of the first connecting pipe (4).

4. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: A second connecting pipe (5) is installed between the lower sides of the middle of the opposite surfaces of the aerobic tank (3) and the sedimentation tank (22). Matching through holes are opened on the inner ring surface of the second connecting pipe (5) on both the aerobic tank (3) and the sedimentation tank (22). A second delivery pump (8) is installed in the middle of the second connecting pipe (5).

5. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: A water outlet pipe (6) is fixedly installed on the lower side of the surface of the sedimentation tank (22) away from the aerobic tank (3). A valve (9) is installed in the middle of the water outlet pipe (6). A matching through hole is opened on the inner ring surface of the sedimentation tank (22) corresponding to the water outlet pipe (6).

6. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: The stirring mechanism includes a rotating rod (13) that is rotatably mounted on the middle of the inner surface of the end of the anoxic tank (2) away from the aerobic tank (3). Several stirring rods (14) are fixed at intervals along the horizontal direction on both sides of the outer ring surface of the rotating rod (13). A rotating motor (12) is installed on the middle of the surface of the end of the anoxic tank (2) away from the aerobic tank (3). The output shaft of the rotating motor (12) passes through the inner and outer surfaces of the anoxic tank (2) at the corresponding position and is fixedly connected to the opposite end of the rotating rod (13).

7. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: The aeration mechanism includes several aeration heads (17) spaced apart in the horizontal direction. Each aeration head (17) has a connected aeration pipe (16) installed in the middle of its lower surface. An aerator (15) is installed on the side surface of the aerobic tank (3) away from the sedimentation tank (22). The end of the aeration pipe (16) away from the aeration head (17) passes through the inner and outer surfaces of the aerobic tank (3) at the corresponding position and is installed between the aeration interface on the aerator (15).

8. The integrated two-stage AO wastewater treatment device according to claim 1, characterized in that: The tops of the anoxic tank (2), aerobic tank (3) and sedimentation tank (22) are all covered with matching baffles (10), and handles (11) are fixed in the middle of the upper surface of the baffles (10).

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