Improved domestic wastewater AO process treatment equipment

Abstract

The utility model discloses improved domestic wastewater AO process treatment equipment, which belongs to the technical field of wastewater treatment and comprises a rectangular shell, a first partition plate is vertically arranged in the rectangular shell, the interior of the rectangular shell is divided into a sewage treatment cavity and an aerobic reaction cavity by the first partition plate, and a second partition plate is horizontally arranged in the sewage treatment cavity. The sewage treatment cavity is divided into an anaerobic reaction cavity and a precipitation cavity by a second partition plate, an anaerobic filler layer is arranged in the anaerobic reaction cavity, an aerobic filler layer is arranged in the aerobic reaction cavity, an inclined plate is arranged in the precipitation cavity, a water inlet pipe is arranged below the anaerobic filler layer, and one end of a first flow guide pipe is arranged above the anaerobic filler layer; the other end of the first flow guide pipe extends below the aerobic filler layer, one end of a second flow guide pipe is arranged above the aerobic filler layer, and the other end of the second flow guide pipe extends below the inclined plate; according to the device, the process is made into a vertical structure, so that the occupied space is saved while the original working procedures are reserved, and the wastewater purification capacity is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and particularly relates to an improved domestic wastewater AO process treatment device. Background Technique

[0002] The AO sewage treatment process originated in the 1990s and is a biological reactor. Through the alternating aerobic and anaerobic conditions, microorganisms continuously circulate in the reactor, thereby efficiently removing pollutants. Under aerobic conditions, organic matter is decomposed by microorganisms into carbon dioxide and water; under anaerobic conditions, microorganisms reduce nitrates and nitrites to hydrogen through denitrification to achieve the purpose of nitrogen removal.

[0003] Most of the current AO process equipment are large rectangular machines, and the sewage treatment process is laid out flat, so the occupied space is very large.

[0004] Therefore, it is very necessary to design an improved domestic wastewater AO process treatment device. Content of the Utility Model

[0005] Purpose of the utility model: An improved domestic wastewater AO process treatment device to solve the above problems existing in the prior art.

[0006] To solve the above technical problems, the utility model provides an improved domestic wastewater AO process treatment device, including a rectangular shell. A first partition is vertically arranged inside the rectangular shell. The interior of the rectangular shell is divided into a sewage treatment chamber and an aerobic reaction chamber by the first partition. A second partition is horizontally arranged inside the sewage treatment chamber. The sewage treatment chamber is divided into an anaerobic reaction chamber and a sedimentation chamber by the second partition. An anaerobic filler layer is arranged inside the anaerobic reaction chamber. An aerobic filler layer is arranged inside the aerobic reaction chamber. A sloping plate is arranged inside the sedimentation chamber. A water inlet pipe is arranged below the anaerobic filler layer. One end of a first diversion pipe is arranged above the anaerobic filler layer. The other end of the first diversion pipe extends below the aerobic filler layer. One end of a second diversion pipe is arranged above the aerobic filler layer. The other end of the second diversion pipe extends below the sloping plate.

[0007] As a preferred scheme, a first inclined plate is arranged below the sloping plate. The bottom wall of the sedimentation chamber inclines and converges towards the first inclined plate. A first sludge discharge pipe is arranged at the lower end of the first inclined plate. A first valve is arranged inside the first sludge discharge pipe.

[0008] As a preferred scheme, a second inclined plate is arranged below the anaerobic filler layer. The bottom wall of the anaerobic reaction chamber inclines and converges towards the second inclined plate. A second sludge discharge pipe is arranged at the lower end of the second inclined plate. A second valve is arranged inside the second sludge discharge pipe. A first spraying assembly is arranged above the second inclined plate.

[0009] As a preferred solution, the first spraying assembly includes a first spraying pipe disposed between the second inclined plate and the anaerobic packing layer. A plurality of first spray heads are evenly arranged on the first spraying pipe, and a third valve is disposed inside the first spraying pipe.

[0010] As a preferred solution, a third inclined plate is disposed below the aerobic packing layer. The bottom wall of the aerobic reaction chamber inclines and converges towards the third inclined plate. A third sludge discharge pipe is disposed at the lower end of the third inclined plate, and a fourth valve is disposed inside the third sludge discharge pipe. A second spraying assembly is disposed above the third inclined plate.

[0011] As a preferred solution, the second spraying assembly includes a second spraying pipe disposed between the third inclined plate and the aerobic packing layer. A plurality of second spray heads are evenly arranged on the second spraying pipe, and a fifth valve is disposed inside the first spraying pipe.

[0012] As a preferred solution, an aeration pipe is disposed on the second spraying pipe, and a sixth valve is disposed inside the aeration pipe. An air outlet pipe is disposed above the aerobic packing layer, above the water outlet and at the second diversion pipe.

[0013] As a preferred solution, both the first spraying pipe and the second spraying pipe are provided with a plurality of them, and the spraying directions of the first spray heads and the second spray heads face downward.

[0014] Beneficial effects: The present utility model relates to an improved domestic wastewater AO process treatment device. When the device starts to work, wastewater is first introduced from the water inlet pipe. After the wastewater enters the anaerobic reaction chamber and undergoes anaerobic reaction in the anaerobic packing layer, it enters the aerobic reaction chamber through the first diversion pipe, and after undergoing aerobic reaction in the aerobic packing layer, it enters the sedimentation chamber through the second diversion pipe. The sludge mixed in the wastewater is precipitated through the inclined plate, and the clear water flows out from the water outlet. The device makes the process into a vertical structure, saving the occupied space while retaining the original process, and having a stronger ability to purify wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional view of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic cross-sectional view of the side structure of the sedimentation chamber of the present utility model.

[0017] Figure 3 It is a schematic cross-sectional view of the side structure of the anaerobic reaction chamber of the present utility model.

[0018] Figure 4Partial side structure sectional view of the aerobic reaction chamber of the present utility model

[0019] Each reference numeral in the figure is as follows: rectangular housing 1, first partition 2, second partition 3, aerobic packing layer 4, anaerobic packing layer 5, inclined plate 6, water inlet pipe 7, first diversion pipe 8, second diversion pipe 9, water outlet 10, first inclined plate 11, first sludge discharge pipe 12, first valve 13, second inclined plate 14, third valve 15, second sludge discharge pipe 16, second valve 17, first spray pipe 19, first spray head 20, third inclined plate 21, second spray pipe 22, second spray head 23, fifth valve 24, third sludge discharge pipe 25, fourth valve 26, aeration pipe 27, sixth valve 28, air outlet pipe 29. Specific implementation manner

[0020] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0021] The applicant's research found that most of the current AO process equipment are large cuboid machines, and the sewage treatment process is unfolded in a plane, so the occupied space is very large.

[0022] Therefore, the present utility model provides an improved domestic wastewater AO process treatment device. Please refer to Figures 1 to 4 , this device includes a rectangular housing 1, a first partition 2 is vertically arranged inside the rectangular housing 1, the inside of the rectangular housing 1 is divided into a sewage treatment chamber and an aerobic reaction chamber by the first partition 2, a second partition 3 is horizontally arranged inside the sewage treatment chamber, the sewage treatment chamber is divided into an anaerobic reaction chamber and a sedimentation chamber by the second partition 3, an anaerobic packing layer 5 is arranged inside the anaerobic reaction chamber, an aerobic packing layer 4 is arranged inside the aerobic reaction chamber, an inclined plate 6 is arranged inside the sedimentation chamber, a water inlet pipe 7 is arranged below the anaerobic packing layer 5, one end of a first diversion pipe 8 is arranged above the anaerobic packing layer 5, the other end of the first diversion pipe 8 extends below the aerobic packing layer 4, one end of a second diversion pipe 9 is arranged above the aerobic packing layer 4, and the other end of the second diversion pipe 9 extends below the inclined plate 6; during specific implementation, wastewater is first introduced from the water inlet pipe 7, after the wastewater enters the anaerobic reaction chamber and undergoes an anaerobic reaction in the anaerobic packing layer 5, it enters the aerobic reaction chamber through the first diversion pipe 8, and after undergoing an aerobic reaction in the aerobic packing layer 4, it enters the sedimentation chamber through the second diversion pipe 9. The sludge mixed in the wastewater is precipitated by the inclined plate 6, and the clear water flows out from the water outlet 10.

[0023] Preferably, a first inclined plate 11 is provided below the inclined plate 6, the bottom wall of the sedimentation chamber converges obliquely towards the first inclined plate 11, a first sludge discharge pipe 12 is provided at the lower end of the first inclined plate 11, and a first valve 13 is provided in the first sludge discharge pipe 12; in specific implementation, sludge can be gathered at the first sludge discharge pipe 12 through the bottom wall of the sedimentation chamber and the first inclined plate 11, and the first valve 13 is opened to discharge the sludge from the sedimentation chamber.

[0024] Preferably, a second inclined plate 14 is provided below the anaerobic filler layer 5, the bottom wall of the anaerobic reaction chamber converges obliquely towards the second inclined plate 14, a second sludge discharge pipe 16 is provided at the lower end of the second inclined plate 14, a second valve 17 is provided in the second sludge discharge pipe 16, and a first spraying assembly is provided above the second inclined plate 14; in specific implementation, water is sprayed onto the bottom wall of the anaerobic reaction chamber through the first spraying assembly, and the water flow passes through the bottom wall of the anaerobic reaction chamber and the second inclined plate 14 to gather the sludge in the anaerobic reaction chamber at the second sludge discharge pipe 16, and the second valve 17 is opened to discharge the sludge outside the anaerobic reaction chamber.

[0025] Further, the first spraying assembly includes a first spraying pipe 19 provided between the second inclined plate 14 and the anaerobic filler layer 5, a plurality of first spray heads 20 are uniformly arranged on the first spraying pipe 19, and a third valve 15 is provided in the first spraying pipe 19.

[0026] Further, a third inclined plate 21 is provided below the aerobic filler layer 4, the bottom wall of the aerobic reaction chamber converges obliquely towards the third inclined plate 21, a third sludge discharge pipe 25 is provided at the lower end of the third inclined plate 21, a fourth valve 26 is provided in the third sludge discharge pipe 25, and a second spraying assembly is provided above the third inclined plate 21; in specific implementation, water is sprayed onto the bottom wall of the aerobic reaction chamber through the second spraying assembly, and the water flow passes through the bottom wall of the aerobic reaction chamber and the third inclined plate 21 to gather the sludge in the aerobic reaction chamber at the third sludge discharge pipe 25, and the fourth valve 26 is opened to discharge the sludge outside the aerobic reaction chamber.

[0027] Further, the second spraying assembly includes a second spraying pipe 22 provided between the third inclined plate 21 and the aerobic filler layer 4, a plurality of second spray heads 24 are uniformly arranged on the second spraying pipe 22, and a fifth valve 23 is provided in the first spraying pipe 22.

[0028] Preferably, an aeration pipe 27 is provided on the second spray pipe 22, a sixth valve 28 is provided in the aeration pipe 27, and an air outlet pipe 29 is provided above the aerobic filler layer 4; during operation, air is introduced into the aeration pipe 27 by opening the sixth valve 28, and the air enters the aerobic reaction chamber from the second spray head 24 through the second spray pipe 22. Since the water level in the rectangular shell 1 is consistent with the highest value of the water outlet 10 and the second guide pipe 9, in order to avoid the water surface submerging the air outlet pipe 29 and causing exhaust difficulty, the air outlet pipe 29 is set to be higher than the water outlet 10 and the second guide pipe 9.

[0029] Preferably, the first spray pipe 19 and the second spray pipe 22 are both provided in plural numbers, and the spraying direction of the first spray head 20 and the second spray head 24 is downward, and the water sprayed from the first spray head 20 and the second spray head 24 can respectively flush the bottom wall of the anaerobic reaction chamber and the bottom wall of the aerobic reaction chamber, and flush and remove the sludge adhering to the bottom wall of the anaerobic reaction chamber and the bottom wall of the aerobic reaction chamber.

[0030] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An improved domestic wastewater AO process treatment equipment, characterized in that: include: Rectangular shell; A first partition plate is vertically arranged inside the rectangular shell; The interior of the rectangular shell is divided into a sewage treatment chamber and an aerobic reaction chamber by the first partition; A second partition plate is horizontally arranged in the sewage treatment chamber; The sewage treatment chamber is divided into an anaerobic reaction chamber and a sedimentation chamber by the second partition; An anaerobic filler layer is arranged in the anaerobic reaction chamber; an aerobic filler layer, arranged in the aerobic reaction chamber; An inclined plate is arranged in the sedimentation chamber; A water inlet pipe is arranged below the anaerobic filler layer; A first flow guide pipe, one end of which is arranged above the anaerobic filler layer and the other end of which extends to below the aerobic filler layer; A second flow guide pipe, one end of which is arranged above the aerobic filler layer and the other end of which extends to below the inclined plate; The water outlet is arranged above the inclined plate.

2. The improved domestic wastewater AO process treatment equipment according to claim 1 is characterized in that: A first inclined plate is arranged below the inclined plate, the bottom wall of the sedimentation chamber is inclined and converges toward the first inclined plate, a first mud discharge pipe is arranged at a lower end of the first inclined plate, and a first valve is arranged in the first mud discharge pipe.

3. The improved domestic wastewater AO process treatment equipment according to claim 1 is characterized in that: A second inclined plate is arranged below the anaerobic filler layer, the bottom wall of the anaerobic reaction chamber is inclined and converges toward the second inclined plate, a second mud discharge pipe is arranged at the lower end of the second inclined plate, a second valve is arranged in the second mud discharge pipe, and a first spray assembly is arranged above the second inclined plate.

4. The improved domestic wastewater AO process treatment equipment according to claim 3 is characterized by: The first spray assembly is composed of a first spray pipe, a first spray head and a third valve, the first spray pipe is arranged between the second inclined plate and the anaerobic filler layer, the first spray head is evenly arranged on the first spray pipe, and the third valve is arranged in the first spray pipe; A third inclined plate is arranged below the aerobic filler layer, the bottom wall of the aerobic reaction chamber is inclined and converges toward the third inclined plate, a third mud discharge pipe is arranged at a lower end of the third inclined plate, a fourth valve is arranged in the third mud discharge pipe, and a second spray assembly is arranged above the third inclined plate; The second spray assembly consists of a second spray pipe, a second spray head and a fifth valve. The second spray pipe is arranged between the third inclined plate and the aerobic filler layer. The second spray head is evenly arranged on the second spray pipe. The fifth valve is arranged in the second spray pipe.

5. The improved domestic wastewater AO process treatment equipment according to claim 4 is characterized in that: An aeration pipe is arranged on the second spray pipe, a sixth valve is arranged in the aeration pipe, and an air outlet pipe is arranged above the aerobic filler layer, above the water outlet and the second guide pipe.

6. The improved domestic wastewater AO process treatment equipment according to claim 4 is characterized by: The first spray pipe and the second spray pipe are both provided in plurality, and the spraying direction of the first spray head and the second spray head is downward.

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