A sewage treatment optimization operation device based on A2O process

Abstract

The present invention discloses a sewage treatment optimization operation device based on the A2O process, and specifically relates to the technical field of sewage treatment optimization operation devices, including a shell, a partition receiving component is fixedly installed at the lower end of the shell, an aerobic component is fixedly installed on the bottom wall of the shell, an anoxic tank is fixedly connected to the middle of the inner surface of the shell through a plurality of connecting rods, and an anaerobic tank is fixedly connected to the upper part of the inner surface of the shell through a plurality of connecting rods. The sewage treatment optimization operation device based on the A2O process described in the present invention can fully stir the sewage stored therein by using the power generated during aeration, thereby increasing the dissolved oxygen concentration, and at the same time, the aerobic component can disperse the bubbles generated during aeration, so that the gas can be evenly distributed in the sewage, and when the aerobic component performs aeration, the upward force of aeration can be used to push the residue generated on the surface of the sewage to the surroundings, thereby improving the subsequent processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment optimization operation devices, and in particular to a sewage treatment optimization operation device based on an A2O process. Background Art

[0002] The A2O process, whose full name is Anaerobic-Anoxic-Oxic process, is also known as the AAO process or AAO method. It is a commonly used secondary sewage treatment process. This process combines the characteristics of traditional activated sludge process, biological nitrification and denitrification process and biological phosphorus removal process, and can simultaneously achieve the functions of removing organic matter, denitrification and phosphorus removal. The A2O process achieves sewage purification through the organic coordination of three different environmental conditions, anaerobic, anoxic and aerobic, and microbial flora.

[0003] In the prior art, when aerating the aerobic zone to expose air to the sewage, the air cannot be evenly dispersed into the sewage, thereby reducing the dissolved oxygen concentration and aeration efficiency.

[0004] Chinese patent announcement number CN218320978U discloses an aeration device for an aerobic sewage treatment tank, including a main body, an oxygenation mechanism and a reinforcement mechanism, wherein the oxygenation mechanism is located at the inner end of the main body, and the reinforcement mechanism is located at the outer end of the main body, wherein the main body includes a shell, a connecting pipe 1, a water inlet pipe and a connecting pipe 2, wherein the connecting pipe 1 is fixedly installed at the left end of the shell, the water inlet pipe is fixedly installed at the left end of the connecting pipe 1, and the connecting pipe 2 is fixedly installed at the right end of the shell. The aeration device for an aerobic sewage treatment tank, by installing an oxygenation mechanism and a reinforcement mechanism, enables the aerobic sewage treatment tank to effectively improve the efficiency of aeration, enhance the sewage treatment effect of the aerobic sewage treatment tank, ensure the contact area between the sewage and the gas in the aerobic sewage treatment tank, make the sewage treatment speed of the aerobic sewage treatment tank faster, and greatly reduce the pollution caused by the aerobic sewage treatment tank to the environment.

[0005] Although the equipment in the above patent document can perform aeration treatment during aerobic sewage treatment during use, in actual use, it is unable to utilize the power generated by aeration to clean and collect the residue generated on the sewage surface, and it is also unable to utilize the power generated by aeration to stir the sewage, thereby reducing the dissolved oxygen concentration and aeration efficiency. Summary of the invention

[0006] The main purpose of the present invention is to provide a sewage treatment optimization operation device based on the A2O process, which can effectively solve the problem that the power generated by aeration cannot be used to clean and collect the residues generated on the sewage surface, and the power generated by aeration cannot be used to stir the sewage, thereby reducing the dissolved oxygen concentration and aeration efficiency.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A sewage treatment optimization operation device based on A2O process comprises a shell, an air flotation machine is fixedly connected to the upper end of the shell, a partition receiving component is fixedly installed on the lower end of the shell, an aerobic component is fixedly installed on the bottom wall of the shell, an anoxic tank is fixedly connected to the middle of the inner surface of the shell through a plurality of connecting rods, and an anaerobic tank is fixedly connected to the upper part of the inner surface of the shell through a plurality of connecting rods.

[0009] Preferably, the partition receiving assembly includes an annular shell fixedly connected to the lower end of the outer shell, an annular groove is provided on the outer side of the lower end of the outer shell, a water storage tank is provided in the middle part of the upper end of the annular shell, a discharge pipe 1 is fixedly connected to the lower side of the rear part of the outer surface of the annular shell, the front end of the discharge pipe 1 penetrates through the inner surface of the annular groove and extends to the inside of the water storage tank, a discharge pipe 2 is fixedly connected to the right side of the outer surface of the annular shell, the left end of the discharge pipe 2 penetrates through the outer surface of the annular shell and extends to the inside of the annular shell, and the inner surface of the discharge pipe 1 and the inner surface of the discharge pipe 2 are both threadedly connected with threaded plugs.

[0010] Preferably, a plurality of material dropping openings in an annular array are provided on the outer side of the bottom wall of the shell, and a mounting hole is provided in the middle of the bottom wall of the shell.

[0011] Preferably, the aerobic component includes an aerobic tank fixedly connected to the middle part of the bottom wall of the outer shell, a water outlet pipe is fixedly connected to the middle part of the lower end of the aerobic tank, the water outlet pipe is communicated with the inner cavity of the aerobic tank, the water outlet pipe is located on the inner surface of the mounting hole, an additive component is fixedly installed in the middle part of the left side of the outer surface of the outer shell, and an aeration component is fixedly installed in the middle part of the right side of the outer surface of the outer shell.

[0012] Preferably, the dosing assembly comprises a curved tube fixedly connected to the middle of the outer surface of the shell, the right side of the outer surface of the curved tube is located on the upper left side of the aerobic tank, and a feeding funnel is fixedly connected to the upper inner surface of the curved tube.

[0013] Preferably, the aeration assembly includes a mounting platform fixedly connected to the middle part of the right side of the outer surface of the outer shell, a booster pump is fixedly connected to the upper end of the mounting platform, an air pipe is fixedly connected to the right side of the outer surface of the outer shell, the left side of the outer surface of the air pipe is located in the inner cavity of the aerobic tank, the output end of the booster pump is fixedly connected to the right end of the air pipe, and a stirring assembly is rotatably installed on the other end of the air pipe.

[0014] Preferably, the stirring assembly comprises a single-way pipe rotatably connected to the other end of the gas pipe, and four spiral blades are fixedly connected to the outer surface of the single-way pipe in an annular array, and a plurality of air outlet holes are opened at the lower part of the outer surface of the four spiral blades.

[0015] Preferably, the interiors of the four spiral leaves are all hollow and communicate with the inner cavity of the single-way tube, and the plurality of air outlets are all inclined in the same direction.

[0016] Preferably, the upper end of the aerobic pool is arranged in an inclined shape.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can utilize the power generated during aeration to fully stir the sewage stored therein by using the aerobic component, thereby increasing the dissolved oxygen concentration. At the same time, the aerobic component can disperse the bubbles generated during aeration, thereby allowing the gas to be evenly distributed in the sewage. When the aerobic component performs aeration, the upward force of aeration can be utilized to push the residue generated on the surface of the sewage to the surrounding areas, thereby allowing the residue to be stored in the partition receiving component, thereby reducing the residue during subsequent sedimentation of the sewage, thereby improving the processing efficiency of subsequent processes.

[0019] The present invention can store the stored residue and the stored sewage separately by setting up the partition receiving components. At the same time, when the residue and sewage are discharged, they are both discharged through separate outlets, thereby avoiding the situation in which the residue and sewage are mixed when being discharged, causing the subsequent processing procedures to be more complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a schematic cross-sectional view of a local structure of the present invention;

[0023] Figure 4 It is a schematic cross-sectional view of the local structure of the aerobic component of the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the aeration assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the stirring component of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the dosing assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of the blanking opening and mounting hole structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the partition receiving component of the present invention;

[0029] Fig.10 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle.

[0030] In the figure: 1, outer shell; 101, drop port; 102, mounting hole; 2, flotation machine; 3, partition receiving assembly; 31, annular shell; 32, annular groove; 33, discharge pipe 1; 34, discharge pipe 2; 35, threaded plug; 36, water storage tank; 4, aerobic assembly; 41, aerobic tank; 42, outlet pipe; 43, dosing assembly; 431, curved pipe; 432, feeding funnel; 44, aeration assembly; 441, mounting table; 442, booster pump; 443, air pipe; 444, stirring assembly; 4441, single-pass pipe; 4442, spiral blade; 4443, air outlet; 5, anoxic tank; 6, anaerobic tank. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Embodiment 1, as Figure 1 , Figure 2 As shown, a sewage treatment optimization operation device based on the A2O process includes a shell 1, an air flotation machine 2 is fixedly connected to the upper end of the shell 1, and a partition receiving component 3 is fixedly installed at the lower end of the shell 1. Through the partition receiving component 3, the stored residue and the stored sewage can be stored separately, and at the same time, when the residue and sewage are discharged, they are both separate discharge outlets, thereby avoiding the situation that the residue and sewage are mixed when they are discharged, causing the subsequent processing procedures to be more complicated;

[0033] The bottom wall of the housing 1 is fixedly mounted with an aerobic component 4. The aerobic component 4 can utilize the power generated during aeration to fully stir the sewage stored therein, thereby increasing the dissolved oxygen concentration. At the same time, the aerobic component 4 can disperse the bubbles generated during aeration, thereby allowing the gas to be evenly distributed in the sewage. When the aerobic component 4 performs aeration, the upward force of aeration can be utilized to push the residue generated on the surface of the sewage to the surroundings, thereby allowing the residue to be stored in the partition receiving component 3, thereby reducing the residue during subsequent sedimentation of the sewage, thereby improving the processing efficiency of subsequent processes.

[0034] The middle part of the inner surface of the shell 1 is fixedly connected to the anoxic tank 5 through a plurality of connecting rods, and the upper part of the inner surface of the shell 1 is fixedly connected to the anaerobic tank 6 through a plurality of connecting rods.

[0035] The above-mentioned air flotation machine 2, anoxic tank 5 and anaerobic tank 6 are all conventional settings in the prior art;

[0036] The main purpose of the air flotation machine 2 is to purify water quality. The air flotation machine 2 uses bubbles to bring tiny suspended matter suspended in the water, such as suspended solids, grease, colloids, etc., to the water surface to form scum or foam, thereby effectively removing these suspended matter. These suspended matter are often difficult to remove during the water treatment process. The air flotation machine 2 can effectively improve the transparency and clarity of the water.

[0037] Separation of grease and fat: For wastewater or industrial wastewater containing a large amount of grease and fat, the flotation machine 2 injects air bubbles into the water, causing them to adhere to the surface of grease and fat particles, prompting them to float to the surface of the water to form foam, thereby achieving effective separation and removal of grease and fat.

[0038] Reduction of chromaticity and turbidity: When treating wastewater with strong color, the air flotation machine 2 can effectively reduce the chromaticity in the water and improve the transparency of the water quality. In addition, for water bodies with high turbidity, the air flotation machine 2 can also effectively reduce the suspended particles in the water and improve the clarity of the water quality;

[0039] Sludge treatment: The scum or froth produced by the flotation machine 2 contains a large amount of suspended matter and grease. These sediments and froth can be further processed into sludge or other recyclable materials through subsequent treatment, thereby achieving resource reuse and waste reduction.

[0040] The anaerobic tank 6 is a link in the sewage treatment system, in which the anoxic conditions, sometimes even anaerobic conditions, promote the growth and activity of some specific microbial groups, which can use organic matter to degrade, especially those organic matter that is more difficult to degrade, such as sulfur compounds and high molecular weight organic matter;

[0041] Removal of nitrogen and phosphorus: Under anaerobic conditions, some specific microorganisms can use nitrate nitrogen and nitrate as electron acceptors to carry out denitrification, reducing nitrate nitrogen to gaseous nitrogen N2, thereby achieving the purpose of nitrogen removal. In addition, anaerobic conditions also help the precipitation and removal of phosphorus, forming insoluble phosphides through the reduction of phosphates;

[0042] Formation of sediment: In the anaerobic tank 6, due to the microbial activity under anoxic conditions, the sediment produced sometimes contains substances such as metal ions or sulfides, which can be effectively removed from the water;

[0043] Removal of sulfide: The microorganisms in the anaerobic tank 6 can also use sulfate or other sulfides as electron acceptors to perform desulfurization, reducing sulfide to sulfur gas or other dissolved forms, thereby reducing the pollution effect of sulfide on the environment.

[0044] Meanwhile, the anoxic tank 5 is the next process of the anaerobic tank 6. The anoxic tank 5 is a sewage treatment unit that intentionally creates low oxygen or anaerobic conditions. Under such conditions, some specific microbial groups, such as anaerobic bacteria, can use organic matter as electron acceptors for degradation metabolism. These microorganisms decompose organic matter in sewage, especially those organic matter that is difficult to degrade under aerobic conditions, such as high molecular organic matter and sulfur-containing organic matter.

[0045] Removal of nitrogen and phosphorus: In anoxic environments, denitrification can also occur, that is, some microorganisms oxidize nitrate nitrogen into gaseous nitrogen N2, thereby removing nitrogen from the water. In addition, anaerobic conditions are also conducive to the precipitation and removal of phosphorus, which is captured and removed from the water by forming insoluble phosphides with metal ions;

[0046] Removal of sulfide: The anoxic tank 5 can also promote microorganisms to carry out reverse sulfidation, reducing sulfate to sulfide, thereby reducing the sulfide content in the sewage and reducing its impact on the environment.

[0047] Therefore, the above-mentioned flotation machine 2, anoxic tank 5, and anaerobic tank 6 are all conventional designs in the prior art, and their specific installation methods and control methods are all conventional designs, which will not be elaborated in detail in this solution.

[0048] Embodiment 2: Based on Embodiment 1, this embodiment aims to improve the dissolved oxygen concentration and aeration efficiency when aerobic treatment is performed on sewage.

[0049] For details, see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The dosing assembly 43 includes a curved tube 431 fixedly connected to the middle of the outer surface of the shell 1, the right side of the outer surface of the curved tube 431 is located on the upper left side of the aerobic tank 41, and a feeding funnel 432 is fixedly connected to the upper inner surface of the curved tube 431.

[0050] Furthermore, the aeration assembly 44 includes a mounting platform 441 fixedly connected to the middle part of the right side of the outer surface of the outer shell 1, a booster pump 442 is fixedly connected to the upper end of the mounting platform 441, an air pipe 443 is fixedly connected to the right side of the outer surface of the outer shell 1, the left side of the outer surface of the air pipe 443 is located in the inner cavity of the aerobic tank 41, the output end of the booster pump 442 is fixedly connected to the right end of the air pipe 443, and a stirring assembly 444 is rotatably installed on the other end of the air pipe 443.

[0051] Furthermore, the stirring component 444 includes a single-way pipe 4441 rotatably connected to the other end of the air supply pipe 443, and four spiral leaves 4442 are fixedly connected to the outer surface of the single-way pipe 4441 in an annular array, and a plurality of air outlet holes 4443 are opened at the lower part of the outer surface of the four spiral leaves 4442.

[0052] Furthermore, the interiors of the four spiral leaves 4442 are all hollow and communicate with the inner cavity of the single-way tube 4441 , and the plurality of air outlet holes 4443 are all inclined in the same direction.

[0053] Furthermore, the stirring component 444 includes a single-way pipe 4441 rotatably connected to the other end of the air supply pipe 443, and four spiral leaves 4442 are fixedly connected to the outer surface of the single-way pipe 4441 in an annular array, and a plurality of air outlet holes 4443 are opened at the lower part of the outer surface of the four spiral leaves 4442.

[0054] After the sewage is processed by the flotation machine 2, the anaerobic tank 6 and the anoxic tank 5, the treated sewage will be discharged into the aerobic tank 41. First, the chemical materials required for aerobic treatment are put into the feeding funnel 432, so that the chemical materials fall from the feeding funnel 432 into the curved pipe 431, and then fall onto the surface of the sewage stored in the aerobic tank 41. Then, the aeration component 44 can be started, so that the output end of the aeration component 44 pressurizes and inflates the inner cavity of the gas pipe 443, and then the gas inside the gas pipe 443 is discharged from the other end of the gas pipe 443 into the single-pass pipe 4441, and the four spiral leaves 4442 are all hollow. And they are all connected to the inner cavity of the single-way pipe 4441. As can be seen from the above, a plurality of air outlet holes 4443 are opened at the lower part of the outer surface of the four spiral leaves 4442, and the plurality of air outlet holes 4443 are all arranged in an inclined shape in the same direction. Therefore, when the gas is discharged into the inner cavity of the single-way pipe 4441 by the gas delivery pipe 443, the plurality of air outlet holes 4443 are arranged in the same inclined angle, so that when the gas is ejected from the plurality of air outlet holes 4443, the four spiral leaves 4442 can be pushed to drive the single-way pipe 4441 to rotate at the upper part of the other end of the gas delivery pipe 443. The plurality of air outlet holes 4443 are small and dense, so the aeration effect can be achieved.

[0055] During the aeration process, the bubbles will float upwards. When the bubbles float upwards, they will be scattered by the rotating spiral blades 4442. At the same time, the four spiral blades 4442 can stir the sewage at the same time when rotating, so that the bubbles and chemical materials can be fully mixed with the sewage, thereby improving the dissolved oxygen concentration and aeration efficiency.

[0056] When the gas gushes upward, the floating residues generated when the chemical materials and sewage are mixed can be pushed out to the surroundings, and then the pushed out floating residues will be collected by the partition receiving assembly 3.

[0057] The aeration assembly 44 described above is a conventional arrangement in the prior art, and its working principle is as follows:

[0058] Energy conversion: The aeration assembly 44 converts external energy into kinetic energy or pressure energy by mechanical or electrical means to increase the pressure of the fluid. In this process, there is usually a driving device, such as an electric motor or an internal combustion engine, to provide energy;

[0059] Suction phase: When the pump is started, a low pressure area is formed at the pump inlet, causing the fluid, liquid or gas, to be sucked into the pump;

[0060] Compression and discharge: When the fluid enters the pump, the aeration assembly 44 will compress the fluid and increase its pressure through a mechanism such as an impeller, a screw or a plunger. This process is similar to a mechanical supercharger, which pushes the fluid toward the outlet;

[0061] Discharge stage: The compressed fluid is pushed to the outlet of the pump. The pressure of the fluid at the outlet is higher than that at the inlet, thus completing the pressurization process.

[0062] Therefore, the aeration assembly 44 is a conventional setting in the prior art, and the specific installation method, circuit connection method and control method are all conventional designs, which will not be elaborated in detail in this solution.

[0063] In the above, the specific types of chemical materials added to the aerobic pool 41 are:

[0064] Carbon source: Organic pollutants are the main energy source for the growth and activity of microorganisms in aerobic tanks 41. Organic carbon sources such as glucose, ethanol, lactose, etc. are usually added to provide energy and carbon elements;

[0065] Nitrogen source: Nitrogen is one of the key elements for microorganisms to synthesize proteins and cells. Commonly used nitrogen sources include nitrates, ammonium nitrate, etc., and sometimes organic nitrogen compounds such as urea are also used;

[0066] Phosphorus source: Phosphorus plays an important role in the synthesis of biological macromolecules such as nucleic acids, fatty acids and phospholipids of microorganisms. Phosphate compounds such as potassium dihydrogen phosphate and trisodium phosphate are usually added;

[0067] Trace elements and vitamins: Microbial growth and metabolism require the presence of a variety of trace elements and vitamins, such as iron, manganese, zinc, nickel, cobalt, etc. These are usually added to the aerobic tank 41 in the form of trace additives;

[0068] Regulator: In order to control the pH value, temperature and other environmental conditions in the aerobic pool 41, it may be necessary to add an acid-base regulator, a buffer or a temperature regulating device.

[0069] Therefore, it is only necessary to add the above-mentioned chemical materials into the aerobic pool 41.

[0070] Embodiment 3: Based on Embodiment 2, this embodiment is to collect the scum and facilitate the subsequent discharge of the scum and treated sewage.

[0071] For details, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 ,and Fig. 9 The partition receiving assembly 3 includes an annular shell 31 fixedly connected to the lower end of the outer shell 1, an annular groove 32 is opened on the outer side of the lower end of the outer shell 1, a water storage tank 36 is opened in the middle part of the upper end of the annular shell 31, a discharge pipe 1 33 is fixedly connected to the lower side of the rear part of the outer surface of the annular shell 31, the front end of the discharge pipe 1 33 penetrates through the inner surface of the annular groove 32 and extends to the inside of the water storage tank 36, a discharge pipe 2 34 is fixedly connected to the right side of the outer surface of the annular shell 31, the left end of the discharge pipe 2 34 penetrates through the outer surface of the annular shell 31 and extends to the inside of the annular shell 31, and the inner surfaces of the discharge pipe 1 33 and the discharge pipe 2 34 are both threadedly connected with threaded plugs 35.

[0072] Furthermore, a plurality of material dropping openings 101 in an annular array are provided on the outer side of the bottom wall of the housing 1 , and a mounting hole 102 is provided in the middle of the bottom wall of the housing 1 .

[0073] Furthermore, the upper end of the aerobic pool 41 is arranged in an inclined shape.

[0074] As can be seen from the above, the upper end of the aerobic tank 41 is arranged in an inclined shape, so when the gas gushes upward and the scum is pushed out from the periphery of the aerobic tank 41, the scum will flow downward along the inclined part of the upper end of the aerobic tank 41, and then flow from a plurality of drop ports 101 opened in the annular array on the outer side of the upper end of the shell 1 to the inner cavity of the annular groove 32 for storage, and the sewage after aeration and chemical treatment will fall from the outlet pipe 42 into the inner cavity of the water storage tank 36 for storage, thereby achieving the effect of regional storage of the scum and the treated sewage;

[0075] When the scum and treated sewage need to be taken out later, the threaded plug 35 corresponding to the discharge pipe 1 33 is unscrewed, and the other end of the discharge pipe 1 33 is communicated with the inner cavity of the water storage tank 36. Therefore, after the threaded plug 35 threadedly connected to the discharge pipe 1 33 is unscrewed, the sewage in the inner cavity of the water storage tank 36 can be discharged, and after the threaded plug 35 corresponding to the discharge pipe 2 34 is unscrewed, the residue stored in the inner cavity of the annular groove 32 can be discharged along with part of the water.

[0076] Therefore, the present solution can avoid the mixed storage of residues and treated sewage by setting up the partition receiving component 3, thereby reducing the residues during the subsequent sedimentation of sewage and improving the processing efficiency of subsequent processes.

[0077] It should be noted that the specific installation method of the aeration assembly 44, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0078] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sewage treatment optimization operation device based on A2O process, comprising a housing (1), characterized in that: The upper end of the shell (1) is fixedly connected to an air flotation machine (2), the lower end of the shell (1) is fixedly installed with a partition receiving assembly (3), the bottom wall of the shell (1) is fixedly installed with an aerobic assembly (4), the middle of the inner surface of the shell (1) is fixedly connected to an anoxic tank (5) via a plurality of connecting rods, and the upper part of the inner surface of the shell (1) is fixedly connected to an anaerobic tank (6) via a plurality of connecting rods; A plurality of material dropping openings (101) in an annular array are provided on the outer side of the bottom wall of the housing (1), and a mounting hole (102) is provided in the middle of the bottom wall of the housing (1); The partition receiving assembly (3) comprises an annular shell (31) fixedly connected to the lower end of the outer shell (1), an annular groove (32) is provided on the outer side of the lower end of the outer shell (1), a water storage tank (36) is provided in the middle of the upper end of the annular shell (31), a discharge pipe (33) is fixedly connected to the lower side of the rear portion of the outer surface of the annular shell (31), the front end of the discharge pipe (33) passes through the inner surface of the annular groove (32) and extends to the inside of the water storage tank (36), a discharge pipe (34) is fixedly connected to the right side of the outer surface of the annular shell (31), the left end of the discharge pipe (34) passes through the outer surface of the annular shell (31) and extends to the inside of the annular shell (31), and a threaded plug (35) is threadedly connected to the inner surface of the discharge pipe (33) and the inner surface of the discharge pipe (34); The aerobic component (4) comprises an aerobic pool (41) fixedly connected to the middle of the bottom wall of the outer shell (1); a water outlet pipe (42) is fixedly connected to the middle of the lower end of the aerobic pool (41); the water outlet pipe (42) is communicated with the inner cavity of the aerobic pool (41); the water outlet pipe (42) is located on the inner surface of the mounting hole (102); a dosing component (43) is fixedly installed in the middle of the left side of the outer surface of the outer shell (1); and an aeration component (44) is fixedly installed in the middle of the right side of the outer surface of the outer shell (1); The aeration assembly (44) comprises a mounting platform (441) fixedly connected to the middle part of the right side of the outer surface of the shell (1); a booster pump (442) is fixedly connected to the upper end of the mounting platform (441); an air delivery pipe (443) is fixedly connected to the right side of the outer surface of the shell (1); the left side of the outer surface of the air delivery pipe (443) is located in the inner cavity of the aerobic tank (41); the output end of the booster pump (442) is fixedly connected to the right end of the air delivery pipe (443); and a stirring assembly (444) is rotatably mounted on the other end of the air delivery pipe (443).

2. According to claim 1, a sewage treatment optimization operation device based on A2O process is characterized in that: The dosing assembly (43) comprises a curved tube (431) fixedly connected to the middle of the outer surface of the housing (1), the right side of the outer surface of the curved tube (431) being located on the upper left side of the aerobic tank (41), and a feeding funnel (432) being fixedly connected to the upper part of the inner surface of the curved tube (431).

3. The sewage treatment optimization operation device based on A2O process according to claim 2 is characterized in that: The agitating component (444) comprises a single-way pipe (4441) rotatably connected to the other end of the air delivery pipe (443); four spiral leaves (4442) are fixedly connected in an annular array on the outer surface of the single-way pipe (4441); and a plurality of air outlet holes (4443) are provided at the lower portion of the outer surface of the four spiral leaves (4442).

4. The sewage treatment optimization operation device based on the A2O process according to claim 3 is characterized in that: The four spiral leaves (4442) are all arranged with cavities inside and are all connected to the inner cavity of the single-way tube (4441), and the plurality of air outlet holes (4443) are all arranged in an inclined shape in the same direction.

5. The sewage treatment optimization operation device based on A2O process according to claim 2 is characterized in that: The upper end of the aerobic pool (41) is arranged in an inclined shape.

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