Composite dephosphorization integrated device

Abstract

A composite dephosphorization integrated device comprises a sewage tank, a reaction tank and an adsorption tank which are sequentially connected, an aerator is arranged on the outer wall, close to the sewage tank and the adsorption tank, of the reaction tank and at the end close to the ground, and a stirring structure is arranged in the center in the reaction tank. A scraping structure is arranged at the end, away from the ground, of the stirring structure. A spraying ring pipe and rotary adsorption structures are arranged in the adsorption tank, and the rotary adsorption structures comprise a first rotary adsorption structure and a second rotary adsorption structure. According to the composite phosphorus removal integrated device disclosed by the invention, the sewage tank, the reaction tank and the adsorption tank are arranged, so that total phosphorus in sewage is synergistically and compositely removed, and a rotary adsorption structure is arranged in the adsorption tank, so that the capability of adsorbing organic phosphorus by active coke is greatly improved; and finally, sewage which does not reach the standard can be subjected to repeated phosphorus removal treatment by arranging a circulating pipeline, so that the phosphorus removal capability is improved.

Description

Technical Field

[0001] The present invention relates to the field of biochemical water treatment, and more specifically, to an integrated composite phosphorus removal device. Background Art

[0002] In the field of biochemical water treatment, it is necessary to remove the total phosphorus in wastewater. The total phosphorus in wastewater includes phosphorus-containing organic matter and inorganic phosphorus compounds. Therefore, in the process of treating biochemical water, it is necessary not only to remove phosphorus-containing organic matter but also to remove inorganic phosphorus compounds in biochemical water. When the total phosphorus in biochemical water is removed by the traditional precipitation method, the phosphorus in the sediment may be diluted to the upper water body again through the suspension of particulate phosphorus and the turbulent diffusion of water, or when the soluble phosphorus in the sediment greatly exceeds the phosphorus concentration in the water body, it may be released into the water body again. Moreover, if the total phosphorus in biochemical water is removed by adsorption of granular activated coke alone, the suspended matter in the biochemical water will also affect the adsorption efficiency of the activated coke particles and reduce the adsorption capacity of the pores of the activated coke for total phosphorus.

[0003] Therefore, the problems existing in the prior art need to be further improved and developed. Summary of the invention

[0004] (I) Purpose of the invention: In order to solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an integrated composite phosphorus removal device.

[0005] (II) Technical solution: In order to solve the above technical problems, the present technical solution provides an integrated composite phosphorus removal device, comprising a sewage tank, a reaction tank, and an adsorption tank connected in sequence, wherein the reaction tank is connected to the sewage tank through a sewage channel, the reaction tank is connected to the adsorption tank through a pipeline, a circulation pipeline is connected to the outlet pipe of the adsorption tank, one end of the sewage channel is connected to the sewage inlet of the sewage tank, and the other end is connected to the sewage outlet of the reaction tank.

[0006] Aerators are respectively arranged on the outer walls of the reaction tank close to the sewage tank and the adsorption tank. The aerator is located at one end close to the ground. A stirring structure is arranged at the center of the reaction tank. A scraping structure is arranged at one end of the stirring structure away from the ground.

[0007] A spray ring pipe and a rotary adsorption structure are arranged inside the adsorption tank. The rotary adsorption structure comprises a first rotary adsorption structure and a second rotary adsorption structure.

[0008] Furthermore, the aerator includes an air inlet pipe, an air pump, and an aeration pipeline. The air pump is located at the end of the reaction tank close to the ground, one end of the air pump is connected to the air inlet pipe, and the other end is connected to the aeration pipeline. The air inlet pipe is located at the end away from the ground, and the aeration pipeline is located at the end close to the ground and enters the interior of the reaction tank through the aeration port on the reaction tank; an aeration plate is arranged on the aeration pipeline.

[0009] Furthermore, the stirring structure includes a stirring rod, a stirring shaft, and a stirring motor. One end of the stirring shaft is connected to the stirring motor at the end of the reaction tank top cover away from the ground, and the other end of the stirring shaft passes through the center position on the reaction tank top cover and extends toward the bottom of the reaction tank; the stirring rod is in the shape of a long rod fixed on the stirring shaft, and the stirring rod and the aeration plate are staggered.

[0010] Furthermore, the scraping structure includes a rotating scraper rod and a dirt trough. The rotating scraper rod is located on the stirring shaft and is arranged at one end of the dirt trough away from the stirring rod; the dirt trough is located below the rotating scraper rod and is arranged close to one end of the stirring rod.

[0011] Furthermore, the rotating scraper rod comprises a fixed plate and a scraper strip, wherein the scraper strip contacts the liquid surface and is fixed to the fixed plate at one end away from the liquid surface;

[0012] The sewage trough is open at the end away from the stirring rod, has a closed bottom at the end close to the stirring rod, and has an opening at the end close to the sewage outlet. The sewage trough is connected to the inner wall of the reaction tank at the end close to the sewage outlet as a whole, and is also flush with and connected to the sewage outlet. The height of the sewage trough in the direction away from the stirring rod is consistent with the height of the liquid level; the size of the opening is consistent with the size of the sewage outlet.

[0013] Furthermore, the pipeline includes a first pipeline and a second pipeline, the first pipeline is connected to the water inlet of the adsorption tank, the second pipeline is connected to the circulation port of the adsorption tank, the water inlet is located at one end away from the ground and close to the reaction tank, and the circulation port is located at one end close to the ground and close to the reaction tank.

[0014] Furthermore, the first pipeline is connected to the spray ring pipe, the spray ring pipe is a spiral pipe, a spray hole is arranged on one side of the spray ring pipe close to the central axis of the adsorption tank, and a nozzle is installed on the spray hole.

[0015] Furthermore, the second rotating adsorption structure includes a rotating plate, a first rotating shaft, and a first motor. The first motor is located at the center position of the top cover of the adsorption tank and is connected to the first rotating shaft. The first rotating shaft passes through the top cover of the adsorption tank and extends into the interior of the adsorption tank and is connected to the center position of the rotating plate. The first motor drives the rotating plate through the first rotating shaft.

[0016] Furthermore, axial holes are provided at both ends of the rotating plate away from the first rotating shaft, and the first rotating adsorption structure is installed on the rotating plate through the axial holes; the first rotating adsorption structure includes a second motor, a second rotating shaft, and a filter material frame, the second motor is located at one end of the rotating plate close to the top cover of the adsorption tank, and drives the filter material frame, the second motor is connected to the second rotating shaft, the second rotating shaft passes downward through the axial hole and is connected to the filter material frame, and the filter material frame is located at one end of the rotating plate close to the bottom of the adsorption tank.

[0017] Furthermore, the filter material frame has an inlet at one end close to the rotating plate and an outlet at one end close to the bottom of the adsorption tank. The filter material frame is a rectangular frame, and mesh surfaces are formed on the four peripheral surfaces of the filter material frame.

[0018] (III) Beneficial effects: The present invention provides an integrated composite phosphorus removal device which can fully treat inorganic phosphorus compounds and phosphorus-containing organic matter in sewage by setting up a sewage tank, a reaction tank and an adsorption tank. The ability of activated coke to adsorb organic phosphorus is greatly improved by setting up a rotating adsorption structure inside the adsorption tank. Finally, a circulation pipeline is set up so that sewage that does not meet the standards can be repeatedly treated for phosphorus removal, thereby improving the phosphorus removal capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall external structure of a composite phosphorus removal integrated device of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall internal structure of a composite phosphorus removal integrated device of the utility model;

[0021] Figure 3 It is a schematic diagram of the spray ring pipe structure;

[0022] Figure 4 It is a schematic diagram of the position structure of the sewage tank on the reaction tank from a top view;

[0023] Figure numerals: sewage tank 1, sewage channel 11, sewage outlet 111, reaction tank 2, dosing cartridge 21, rotating scraper rod 22, fixed plate 221, scraper bar 222, stirring structure 23, stirring rod 231, stirring shaft 232, stirring motor 233, sewage tank 24, adsorption tank 3, pipeline 4, first pipeline 41, second pipeline 42, water outlet pipeline 51, phosphorus monitoring structure 511, circulation pipeline 52, aerator 6, air inlet pipe 61, air pump 62, aeration pipeline 63, aeration disk 631, suction pump 7, rotating adsorption structure 8, first rotating adsorption structure 81, filter material frame 811, second rotating shaft 812, second motor 813, second rotating adsorption structure 82, rotating plate 821, first rotating shaft 822, first motor 823, spray ring pipe 83. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with preferred embodiments. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0025] The accompanying drawings are schematic diagrams of embodiments of the present invention. It should be noted that the drawings are only examples and are not drawn to scale, and should not be used to limit the actual protection scope of the present invention.

[0026] A composite phosphorus removal integrated device, such as Figure 1 As shown, it includes a sewage tank 1, a reaction tank 2, and an adsorption tank 3 connected in sequence, wherein a sewage channel 11 is provided at the upper end of the reaction tank 2, the end away from the ground, and the outer wall of one side close to the sewage tank 1, and a pipe 4 is provided at the upper end of the reaction tank 2 and the outer wall of one side close to the adsorption tank 3. The sewage channel 11 connects the sewage tank 1 with the reaction tank 2, and the first pipe 41 of the pipe 4 connects the reaction tank 2 with the internal space of the adsorption tank 3. Specifically, a circulation pipe 52 is provided at the lower end of the outer wall of the adsorption tank 3 away from the reaction tank 2 and the end close to the ground, and one end of the circulation pipe 52 is connected to the water outlet pipe 51 of the adsorption tank 3, and the other end is connected to the liquid inlet of the reaction tank 2.

[0027] Specifically, the sewage tank 1 is located at one end of the reaction tank 2 away from the adsorption tank 3, and is used to collect the sewage generated by the reaction tank 2. A sewage channel 11 is connected to one end of the sewage tank 1 close to the reaction tank 2 and to one end of the outer wall of the sewage tank 1 away from the ground. That is, one end of the sewage channel 11 is connected to the sewage inlet of the sewage tank 1, and the other end is connected to the sewage outlet 111 of the reaction tank 2, so that the sewage tank 1 is connected to the inside of the reaction tank 2. The height of the sewage outlet 111 connected to the sewage channel 11 and the reaction tank 2 is greater than the height of the sewage inlet on the sewage tank 1, so that the generated sewage can smoothly enter the inside of the sewage tank 1.

[0028] More specifically, a suction pump may be provided at the sewage inlet inside the sewage tank 1 so that the generated sewage enters the sewage tank 1 under the action of the suction force of the suction pump.

[0029] like Figure 2 As shown, an aerator 6 is respectively arranged on the outer wall of the reaction tank 2 close to the sewage tank 1 and the adsorption tank 3, and the aerator 6 is arranged at one end close to the ground. A stirring structure 23 is arranged at the center position inside the reaction tank 2. A scraping structure is arranged at the end of the stirring structure 23 away from the ground. A dosing cartridge 21 is also arranged near the center position of the top cover of the reaction tank 2. The dosing cartridge 21 adds an appropriate amount of medicine to the inside of the reaction tank 2, and the stirring structure 23 stirs the inside of the reaction tank 2 to fully dissolve the medicine and fully react with the biochemical water. The aerator 6 generates bubbles of 30μm~50μm to wrap the floccules generated by the reaction and make them rise to the water surface. The scraping structure scrapes the floccules that rise to the water surface into the inside of the sewage tank 1.

[0030] The aerator 6 includes an air inlet pipe 61, an air pump 62, and an aeration pipe 63. The air pump 61 is located at one end of the reaction tank 2 close to the ground. One end of the air pump 61 is connected to the air inlet pipe 62, and the other end is connected to the aeration pipe 63. The air inlet pipe 62 is located at the end away from the ground, and the aeration pipe 63 is located at the end close to the ground and enters the interior of the reaction tank 2 through the aeration port on the reaction tank 2. The aeration pipe entering the interior of the reaction tank 2 extends upward from the bottom of the reaction tank 2 to the middle of the reaction tank 2 near the inner wall of the reaction tank 2. Specifically, an aeration plate 631 is provided on the aeration pipe 63. The bubbles with a diameter of 30 μm to 50 μm generated by the aeration plate 631 wrap the flocculants and suspended matter generated on the inner wall of the reaction tank 2 and make them rise to the water surface. The aeration plates 631 may be provided in a plurality, and there is no limitation here. In the present invention, three aeration plates 631 are provided on each aeration pipe 63 to produce a larger aeration volume, and the heights of the aeration plates 631 corresponding to each other are consistent.

[0031] The stirring structure 23 includes a stirring rod 231, a stirring shaft 232, and a stirring motor 233. One end of the stirring shaft 232 is connected to the stirring motor 233 at the end of the top cover of the reaction tank 2 away from the ground, and the other end of the stirring shaft 232 passes through the center position on the top cover of the reaction tank 2 and extends toward the bottom of the reaction tank 2. The stirring rod 231 is a long rod fixed on the stirring shaft 232, and the stirring rod 231 and the aeration disk 631 are staggered to fully stir the biochemical water inside the reaction tank 2. In the utility model, it is preferred to set two layers of stirring rods, and each layer of stirring rods is set with two. Through the staggered arrangement of the stirring rods 231 and the aeration disk 631, the generated floccules can contact with microbubbles faster and be wrapped by bubbles and rise to the water surface, thereby optimizing the stirring efficiency.

[0032] The scraping structure includes a rotating scraper rod 22 and a dirt trough 24. The rotating scraper rod 22 is located on the stirring shaft and is disposed at one end of the dirt trough 24 away from the stirring rod 231. The dirt trough 24 is located below the rotating scraper rod 22 and is disposed close to one end of the stirring rod 231. The rotating scraper rod 22 scrapes the floccules into the dirt trough 24, and the floccules flow out from the dirt trough 24 into the dirt channel 11.

[0033] The rotating scraper 22 may be provided in multiple numbers, and preferably two are provided in the present invention. The rotating scraper 22 includes a fixed plate 221 and a scraper bar 222. The scraper bar 222 contacts the liquid surface and is fixed to the fixed plate 221 at one end away from the liquid surface. The scraper bar 222 is made of materials such as rubber or silicone, has a certain hardness, and can be bent to scrape the flocculants rising to the liquid surface into the waste tank 24.

[0034] The sewage tank 24 is open at one end away from the stirring rod 231, has a closed bottom at one end close to the stirring rod 231, and has an opening at one end close to the sewage outlet 111. The size of the opening is consistent with the size of the sewage outlet 111. Figure 2 , Figure 4 As shown, the sewage tank 24 is connected to the inner wall of the reaction tank 2 at one end close to the sewage outlet 111, and is flush with and communicated with the sewage outlet 111. The height of the sewage tank 24 in the direction away from the stirring rod 231 is consistent with the height of the liquid surface, that is, the sewage is injected into the interior of the reaction tank 2 and the liquid surface is flush with the height of the sewage tank 24, so that when the rotating scraper 22 rotates, the sewage will not enter the sewage tank 24, and the flocculants above the liquid surface are scraped off by the rotating scraper 22 and enter the sewage tank 24.

[0035] More specifically, a liquid level meter is also provided inside the reaction tank 2, so that the injection of sewage into the reaction tank 2 is stopped after reaching the preset liquid level position. The specific process of the reaction tank 2 is as follows: sewage is injected into the reaction tank 2, and an appropriate amount of medicine is added into the dosing cylinder 21. The stirring motor 232 is started, and the air pump 62 is started. The stirring rod 231 stirs in the reaction tank 2, and the aeration disk 631 generates bubbles of 30μm~50μm, and the generated floccules are wrapped by the bubbles and rise to the liquid surface. During the rotation of the rotating scraper 22, the floccules are scraped into the interior of the sewage tank 24, and enter the sewage channel 11 through the sewage outlet 111, and then enter the interior of the sewage tank 1.

[0036] Between the scraping structure and the aerator 6, a water pumping port is provided on the outer wall of the reaction tank 2 near the adsorption tank 3, and the water pumping port is connected to the pipe 4. The pipe 4 includes a first pipe 41 and a second pipe 42, wherein the first pipe 41 is connected to the water inlet of the adsorption tank 3, and the second pipe 42 is connected to the circulation port of the adsorption tank 3, and the second pipe 42 allows the sewage in the adsorption tank 3 to be circulated and adsorbed inside the adsorption tank 3. The water inlet is located at an end away from the ground and close to the reaction tank 2, and the circulation port is located at an end close to the ground and close to the reaction tank 2. A suction pump 7 is provided at one end of the first pipe 41 close to the reaction tank 2 to pump the sewage inside the reaction tank 2 into the adsorption tank 3. A suction pump 7 is also provided at one end of the second pipe 42 close to the circulation port, so that the phosphorus-containing organic matter in the sewage inside the adsorption tank 3 is fully removed.

[0037] A spray ring pipe 83 and a rotating adsorption structure 8 are provided inside the adsorption tank 3. After the inorganic phosphorus compound treatment is completed, the sewage is pumped into the spray ring pipe 83 of the adsorption tank 3 through the first pipe 41 connected to the water inlet of the adsorption tank 3. The sewage is evenly sprayed from the spray ring pipe 83 to the inside of the adsorption tank. The rotating adsorption structure 8 rotates inside the adsorption tank 3 to effectively adsorb the sprayed sewage and remove the phosphorus-containing organic matter inside the sewage. The water after phosphorus removal is discharged from the inside of the adsorption tank 3.

[0038] Wherein, the first pipeline 41 is connected to the spray ring pipe 83. Figure 3 As shown, the spray ring pipe 83 is a spiral pipe. A spray hole is provided on one side of the spray ring pipe 83 close to the central axis of the adsorption tank 3, and a nozzle is installed on the spray hole. The wastewater to be treated drawn from the reaction tank 2 enters the spray ring pipe 83 and is sprayed from the nozzle on the spray ring pipe 83 to the rotating adsorption structure 8 in the adsorption tank 3.

[0039] The rotating adsorption structure 8 includes a first rotating adsorption structure 81 and a second rotating adsorption structure 82. The first rotating adsorption structure 81 makes the filter frame rotate, and the second rotating adsorption structure 82 makes the filter frame revolve, thereby increasing the adsorption capacity of phosphorus-containing organic matter.

[0040] The second rotating adsorption structure 82 includes a rotating plate 821, a first rotating shaft 822, and a first motor 823. The first motor 823 is located at the center of the top cover of the adsorption tank 3 and is connected to the first rotating shaft 822. The first rotating shaft 822 passes through the top cover of the adsorption tank 3 and extends into the adsorption tank 3, and is connected to the center of the rotating plate 821. The first motor 823 drives the rotating plate 821 through the first rotating shaft 822.

[0041] Axial holes are provided at both ends of the rotating plate 821 away from the first rotating shaft 822. The first rotating adsorption structure 81 is installed on the rotating plate 821 through the axial holes.

[0042] Specifically, the first rotating adsorption structure 81 includes a second motor 813, a second rotating shaft 812, and a filter material frame 811. The second motor 813 is located at one end of the rotating plate 821 close to the top cover of the adsorption tank 3, and drives the filter material frame 811. The second motor 813 is connected to the second rotating shaft 812, and the second rotating shaft 812 passes downward through the shaft hole and is connected to the filter material frame 811. The filter material frame 811 is located at one end of the rotating plate 821 close to the bottom of the adsorption tank 3.

[0043] The first motor 823 drives the rotating plate 821 to rotate so that the filter frame 811 uniformly adsorbs the organic phosphorus wastewater inside the adsorption tank 3. The second motor 813 drives the filter frame 811 to rotate on its own, that is, to rotate within a small range, thereby increasing the contact area with the organic phosphorus wastewater and greatly improving the ability of activated coke to adsorb and remove organic phosphorus.

[0044] More specifically, the filter frame 811 has an inlet at one end close to the rotating plate 821 and an outlet at one end close to the bottom of the adsorption tank 3. The filter frame 811 is a rectangular frame, and its four peripheral surfaces, i.e., the surfaces without inlet and outlet, are mesh surfaces, and granular activated coke is filled inside the filter frame 811. The mesh surface fixes the granular activated coke inside the filter frame 811, so that when the spray water is sprayed to the filter frame 811, the granular activated coke adsorbs the phosphorus-containing organic matter in the sewage.

[0045] A drain outlet is provided at one end of the adsorption tank 3 away from the reaction tank 2, and the drain outlet is connected to the water outlet pipe 51. Specifically, a phosphorus monitoring structure 511 is provided at one end of the water outlet pipe 51 close to the adsorption tank 3, which is used to monitor the total phosphorus content in the water discharged from the adsorption tank 3. A water outlet valve is provided at one end of the water outlet pipe 51 away from the adsorption tank 3, and the water outlet valve opens or closes the water outlet pipe. A circulation pipe 52 is provided between the water outlet valve and the phosphorus monitoring structure 511. One end of the circulation pipe 52 is connected to the water outlet pipe 51, and the other end is connected to the inside of the reaction tank 2. A control valve and a suction pump 7 are provided on the circulation pipe 52 to control the circulation of water. The control valve is used to control the opening and closing of the circulation pipe 52, and the suction pump 7 draws unqualified sewage into the inside of the reaction tank 2 for recirculation treatment.

[0046] The composite phosphorus removal integrated device also includes a control unit, and the control valve, the suction pump 7, and the water outlet valve are all connected to the control unit through wires, and the control unit controls the opening and closing of the control valve, the suction pump, and the water outlet valve. When the phosphorus-containing monitoring structure 511 detects that the total phosphorus content of the discharged water exceeds the first threshold value, the control unit controls the closing of the water outlet valve, opens the control valve, and sends the phosphorus-containing water along the circulation pipeline 52 into the interior of the reaction tank 2 through the suction pump, and continues the phosphorus removal treatment, thereby improving the treatment effect of the biochemical water phosphorus removal.

[0047] The utility model provides a composite phosphorus removal integrated device, by providing the sewage tank 1, the reaction tank 2, and the adsorption tank 3, so that the phosphorus-containing organic matter and the inorganic phosphorus compound are synergistically treated, and by providing the phosphorus-containing monitoring structure 511 and the circulation pipeline 52, the sewage that does not reach the preset threshold value can be circulated and treated inside the reaction tank 2 and the adsorption tank 3. Finally, by providing the rotating adsorption structure 8, the pore utilization rate of the activated coke is greatly improved when the phosphorus-containing organic matter is adsorbed, and the detachable filter frame is also convenient for the subsequent replacement of the activated coke.

[0048] The above content is an explanation of the preferred embodiments of the present invention, which can help those skilled in the art to more fully understand the technical solution of the present invention. However, these embodiments are merely illustrative, and it cannot be determined that the specific implementation methods of the present invention are limited to the description of these embodiments. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and transformations can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A composite phosphorus removal integrated device, comprising a sewage tank, a reaction tank, and an adsorption tank connected in sequence, characterized in that: The reaction tank is connected to the sewage tank through a sewage channel, the reaction tank is connected to the adsorption tank through a pipeline, a circulation pipeline is connected to the water outlet pipeline of the adsorption tank, one end of the sewage channel is connected to the sewage inlet of the sewage tank, and the other end is connected to the sewage outlet of the reaction tank; An aerator is respectively arranged on the outer wall of the reaction tank close to the sewage tank and the adsorption tank, and the aerator is located at one end close to the ground. A stirring structure is arranged at the center of the reaction tank, and a scraping structure is arranged at one end of the stirring structure away from the ground. A spray ring pipe and a rotary adsorption structure are arranged inside the adsorption tank. The rotary adsorption structure comprises a first rotary adsorption structure and a second rotary adsorption structure.

2. The integrated composite phosphorus removal device according to claim 1, characterized in that: The aerator includes an air inlet pipe, an air pump, and an aeration pipeline. The air pump is located at the end of the reaction tank close to the ground. One end of the air pump is connected to the air inlet pipe, and the other end is connected to the aeration pipeline. The air inlet pipe is located at the end away from the ground, and the aeration pipeline is located at the end close to the ground and enters the interior of the reaction tank through the aeration port on the reaction tank. An aeration plate is arranged on the aeration pipeline.

3. A composite phosphorus removal integrated device according to claim 2, characterized in that: The stirring structure includes a stirring rod, a stirring shaft, and a stirring motor. One end of the stirring shaft is connected to the stirring motor at the end of the reactor top cover away from the ground, and the other end of the stirring shaft passes through the center position on the reactor top cover and extends toward the bottom of the reactor. The stirring rod is a long rod fixed on the stirring shaft, and the stirring rod and the aeration plate are staggered.

4. The integrated composite phosphorus removal device according to claim 1, characterized in that: The scraping structure includes a rotating scraping rod and a dirt trough. The rotating scraping rod is located on the stirring shaft and is arranged at one end of the dirt trough away from the stirring rod. The dirt trough is located below the rotating scraping rod and is arranged close to one end of the stirring rod.

5. The integrated composite phosphorus removal device according to claim 4, characterized in that: The rotating scraper comprises a fixed plate and a scraper strip, wherein the scraper strip contacts the liquid surface and is fixed to the fixed plate at one end away from the liquid surface; The sewage trough is open at the end away from the stirring rod, has a closed bottom at the end close to the stirring rod, and has an opening at the end close to the sewage outlet. The sewage trough is connected to the inner wall of the reaction tank at the end close to the sewage outlet as a whole, and is also flush with and connected to the sewage outlet. The height of the sewage trough in the direction away from the stirring rod is consistent with the height of the liquid level; the size of the opening is consistent with the size of the sewage outlet.

6. The integrated composite phosphorus removal device according to claim 1, characterized in that: The pipeline includes a first pipeline and a second pipeline, the first pipeline is connected to the water inlet of the adsorption tank, the second pipeline is connected to the circulation port of the adsorption tank, the water inlet is located at one end away from the ground and close to the reaction tank, and the circulation port is located at one end close to the ground and close to the reaction tank.

7. The integrated composite phosphorus removal device according to claim 6, characterized in that: The first pipeline is connected to the spray ring pipe, which is a spiral pipe. A spray hole is arranged on one side of the spray ring pipe close to the central axis of the adsorption tank, and a nozzle is installed on the spray hole.

8. The integrated composite phosphorus removal device according to claim 1, characterized in that: The second rotating adsorption structure includes a rotating plate, a first rotating shaft, and a first motor. The first motor is located at the center position of the top cover of the adsorption tank and is connected to the first rotating shaft. The first rotating shaft passes through the top cover of the adsorption tank and extends into the interior of the adsorption tank and is connected to the center position of the rotating plate. The first motor drives the rotating plate through the first rotating shaft.

9. The integrated composite phosphorus removal device according to claim 8, characterized in that: Axial holes are provided at both ends of the rotating plate away from the first rotating shaft, and the first rotating adsorption structure is installed on the rotating plate through the axis holes; the first rotating adsorption structure includes a second motor, a second rotating shaft, and a filter material frame, the second motor is located at one end of the rotating plate close to the top cover of the adsorption tank, and drives the filter material frame, the second motor is connected to the second rotating shaft, the second rotating shaft passes downward through the axis hole and is connected to the filter material frame, and the filter material frame is located at one end of the rotating plate close to the bottom of the adsorption tank.

10. The integrated composite phosphorus removal device according to claim 9, characterized in that: The filter material frame has a material inlet at one end close to the rotating plate and a material outlet at one end close to the bottom of the adsorption tank. The filter material frame is a rectangular frame, and mesh surfaces are formed on the four peripheral surfaces of the filter material frame.

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