Nitrogen and phosphorus removal device for sewage

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a device for removing nitrogen and phosphorus in sewage, which can be used for repeatedly filtering for multiple times, effectively removing nitrogen and phosphorus components in the sewage and carrying out a secondary nitrogen and nitrogen removal treatment process, and has a good purification effect. Comprising a treatment box, a plurality of partition plates, a fixing frame, an adsorption assembly, a treatment assembly, a water inlet assembly and a water outlet assembly, the partition plates are alternately and obliquely installed on the inner walls of the left end and the right end of the treatment box, the fixing frame is fixedly installed at one ends of the partition plates, and the adsorption assembly penetrates through the side wall of the treatment box and is installed on the fixing frame; the treatment assembly is mounted at the upper end of the partition plate in the treatment box, the water inlet assembly is mounted at the right end of the top of the treatment box, and the water outlet assembly is mounted at the bottom end of the inner wall of the treatment box.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to a wastewater nitrogen and phosphorus removal device. Background Technology

[0002] Wastewater refers to polluted wastewater from domestic and industrial processes, water that has lost its original function. Nitrogen and phosphorus in wastewater can cause eutrophication. Unrestricted discharge of nitrogen- and phosphorus-containing wastewater leads to excessive algae growth and water quality deterioration. Direct discharge into rivers causes severe pollution and impacts the normal ecological environment. Existing technology publication CN211445416U proposes a wastewater treatment facility capable of recovering nitrogen and phosphorus, including a wastewater discharge outlet and a wastewater tank. The upper part of the wastewater tank has a partition wall dividing it into a sedimentation zone and a filtration zone. A first filtration unit for filtering wastewater discharged from the wastewater discharge outlet is detachably installed at the upper end of the sedimentation zone. The filtration zone is connected to the sedimentation zone through a detachably installed soil filtration unit at the bottom, filled with soil. The filtration zone has a drain outlet for external drainage. However, this method only performs a single adsorption filtration, making it difficult to guarantee the adsorption filtration effect and resulting in low efficiency. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a wastewater nitrogen and phosphorus removal device that can perform repeated filtration multiple times, effectively remove nitrogen and phosphorus components from wastewater, and carry out a secondary phosphorus and nitrogen removal process, resulting in a good purification effect.

[0004] This utility model discloses a wastewater nitrogen and phosphorus removal device, comprising a treatment tank, multiple partitions, a fixing frame, an adsorption component, a treatment component, an inlet component, and an outlet component. Multiple partitions are alternately and inclinedly installed on the inner walls of the left and right ends of the treatment tank. A fixing frame is fixedly installed at one end of each partition. The adsorption component is installed on the fixing frame through the side wall of the treatment tank. The treatment component is installed on the upper part of the internal partitions of the treatment tank. The inlet component is installed at the top right end of the treatment tank, and the outlet component is installed at the bottom end of the inner wall of the treatment tank. Wastewater is input into the treatment tank through the inlet component. The multiple partitions create a meandering channel inside the treatment tank. The adsorption component treats the wastewater, allowing for repeated and multiple filtrations to effectively remove nitrogen and phosphorus components. The treatment component performs a secondary phosphorus and nitrogen removal process, neutralizing phosphates and nitrogen compounds, resulting in good purification. The outlet component aerates the treated water before discharge.

[0005] Preferably, the adsorption assembly includes multiple mesh frames, multiple sealing plates, multiple mounting plates, multiple sealing rings, multiple sets of pull frames, multiple gravel packing materials, multiple soil packing materials, and multiple activated carbon packing materials. Multiple mesh frames are inserted into the fixed frames through the side walls of the treatment tank. Bagged gravel packing materials, soil packing materials, and activated carbon packing materials are sequentially added to the inside of each mesh frame from top to bottom. Sealing plates are connected to the outer walls of the mesh frames, and mounting plates are connected to the outer walls of the sealing plates. The mounting plates are bolted to the outer walls of the treatment tank, and sealing rings are fixedly connected to the inner walls of the mounting plates. Sealing grooves that mate with the sealing rings are formed on the outer walls of the treatment tank. Pull frames are installed on the outer walls of the mounting plates. Wastewater flows at the top of the partition, passing sequentially through the gravel packing materials, soil packing materials, and activated carbon packing materials to complete the adsorption process. This allows for repeated and multiple filtrations, effectively removing nitrogen and phosphorus components from the wastewater. Unscrewing the fixing bolts and pulling the pull frames removes the mounting plates, sealing plates, and mesh frames from the treatment tank, facilitating the replacement of the packing materials and ensuring the effectiveness of wastewater treatment. The sealing rings enhance the sealing effect.

[0006] Preferably, the treatment assembly includes multiple nitrifying bacteria reactors and multiple polyphosphate-accumulating bacteria reactors. The multiple nitrifying bacteria reactors are evenly installed on the top of the second layer of partitions and on the inner wall of the treatment tank, and the multiple polyphosphate-accumulating bacteria reactors are evenly installed on the top of the third layer of partitions and on the inner wall of the treatment tank. The nitrifying bacteria reactors and polyphosphate-accumulating bacteria reactors enable a secondary phosphorus and nitrogen removal process for wastewater, neutralizing phosphorus and nitrogen compounds, improving the treatment effect of wastewater, and achieving good purification results.

[0007] Preferably, the water inlet assembly includes a distribution pipe, multiple inlet pipes, a baffle, an input pipe, and a cover plate. Multiple inlet pipes are evenly connected to the bottom of the distribution pipe. The inlet pipes are installed at the top left end of the treatment tank, and their output ends communicate with the interior of the treatment tank. The baffle is inserted into the right side wall of the treatment tank, and a cover plate is connected to the rear end of the baffle. The cover plate is sealed to the left side wall of the treatment tank. The input end of the distribution pipe is connected to the input pipe. Wastewater enters the distribution pipe through the input pipe and is evenly fed into the treatment tank through the inlet pipes. The baffle removes larger solid particles from the wastewater. The baffle can be removed from inside the treatment tank using the cover plate for easy cleaning, ensuring treatment quality.

[0008] Preferably, the system also includes a dosing pipe, a gearbox, a rotating rod, a drive motor, and multiple stirring rods. The dosing pipe is connected to the top of the treatment tank. The gearbox is fixedly installed on the left side wall of the treatment tank. The output end of the gearbox passes through the side wall of the treatment tank and is connected to the rotating rod. Multiple stirring rods of different lengths are evenly installed on the outer wall of the rotating rod. The input end of the gearbox is connected to the output end of the drive motor. The dosing pipe is opened to add denitrification and phosphorus removal chemicals into the treatment tank. The drive motor is started to drive the rotating rod to rotate through the gearbox. The rotating rod drives the stirring rod to rotate, mixing the chemicals and wastewater, separating harmful substances in the wastewater, and achieving denitrification and phosphorus removal treatment of the wastewater.

[0009] Preferably, the effluent assembly includes an aeration box, a connecting pipe, an aerator, an aeration pipe, an aeration head, and an effluent pipe. The aeration box is fixedly installed inside the treatment tank. The connecting pipe is fixedly installed at the lower end of the right side wall of the aeration box. A solenoid valve is installed inside the connecting pipe. The aerator is installed on the left side wall of the treatment tank. The output end of the aerator passes through the side wall of the treatment tank and is connected to the aeration pipe. An aeration head is installed on the aeration pipe. The treated wastewater is input into the aeration box through the connecting pipe. After the aerator is started, the treated water is aerated through the aeration pipe and the aeration head and then discharged out through the effluent pipe.

[0010] Preferably, the system also includes a nitrogen and phosphorus detector, a return pipe, a water pump, and a connector. The nitrogen and phosphorus detector is installed at the bottom right end of the treatment tank. The input end of the return pipe is connected to the lower part of the treatment tank. A water pump is installed on the return pipe, and the output end of the return pipe is connected to the rear end of the distribution pipe through the connector. The nitrogen and phosphorus detector is used to test the treated water. If the quality is not up to standard, the water pump is started to draw water through the return pipe and reintroduce it into the distribution pipe through the connector, so that the water re-enters the treatment tank for further purification. If the quality is up to standard, the solenoid valve is opened, and the water is discharged into the aeration tank through the connector.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: sewage is input into the treatment tank through the inlet component, and multiple baffles form a meandering cavity inside the treatment tank. The sewage is treated by the adsorption component, which can be repeatedly filtered multiple times to effectively remove nitrogen and phosphorus components from the sewage. The treatment component can perform a secondary phosphorus and nitrogen removal process to neutralize phosphorus and nitrogen compounds, resulting in good purification effect. The effluent component can aerate the treated water before discharge. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the rear internal three-dimensional structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the internal three-dimensional structure of this utility model;

[0016] Figure 5 This is a front cross-sectional structural diagram of the present invention;

[0017] The following are labels in the attached diagram: 1. Treatment box; 2. Partition plate; 3. Fixing frame; 4. Wire mesh frame; 5. Sealing plate; 6. Mounting plate; 7. Sealing ring; 8. Pulling frame; 9. Gravel packing; 10. Soil packing; 11. Activated carbon packing; 12. Nitrifying bacteria reactor; 13. Polyphosphate-accumulating bacteria reactor; 14. Water distribution pipe; 15. Inlet pipe; 16. Baffle net; 17. Input pipe; 18. Cover plate; 19. Dosing pipe; 20. Gearbox; 21. Rotating rod; 22. Drive motor; 23. Stirring rod; 24. Aeration box; 25. Connecting pipe; 26. Nitrogen and phosphorus detector; 27. Aerator; 28. Aeration pipe; 29. ​​Aeration head; 30. Outlet pipe; 31. Return pipe; 32. Water pump; 33. Connector. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Example 1

[0020] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, multiple partitions 2 are alternately inclined and installed on the inner walls of the left and right ends of the treatment tank 1. A fixing frame 3 is fixedly installed at one end of the partition 2. Multiple mesh frames 4 are inserted into the fixing frame 3 through the side wall of the treatment tank 1. Bagged gravel filler 9, soil filler 10 and activated carbon filler 11 are added to the inside of the mesh frame 4 from top to bottom. A sealing plate 5 is connected to the outer wall of the mesh frame 4. An installation plate 6 is connected to the outer wall of the sealing plate 5. The installation plate 6 is installed on the outer wall of the treatment tank 1 by bolts. A sealing ring 7 is fixedly connected to the inner wall of the installation plate 6. A sealing groove that mates with the sealing ring 7 is opened on the outer wall of the treatment tank 1. A pull frame 8 is installed on the outer wall of the installation plate 6. Multiple nitrifying bacteria reactors 12 are evenly installed on the top of the second layer of partitions 2 and on the inner wall of the treatment tank 1. Multiple polyphosphate-accumulating bacteria reactors 13 are evenly installed. On the top of the third partition 2 and the inner wall of the treatment box 1, multiple water inlet pipes 15 are evenly connected to the bottom of the water distribution pipe 14. The water inlet pipe 15 is installed at the top left end of the treatment box 1, and the output end of the water inlet pipe 15 is connected to the inside of the treatment box 1. The baffle 16 is inserted into the right side wall of the treatment box 1. The rear end of the baffle 16 is connected to the cover plate 18. The cover plate 18 is sealed and connected to the left side wall of the treatment box 1. The input end of the water distribution pipe 14 is connected to the input pipe 17. The aeration box 24 is fixedly installed inside the treatment box 1. The connecting pipe 25 is fixedly installed at the lower end of the right side wall of the aeration box 24. The connecting pipe 25 is equipped with a solenoid valve. The aerator 27 is installed on the left side wall of the treatment box 1. The output end of the aerator 27 passes through the side wall of the treatment box 1 and is connected to the aeration pipe 28. The aeration head 29 is installed on the aeration pipe 28.

[0021] Wastewater enters the distribution pipe 14 through the inlet pipe 17 and is evenly fed into the treatment tank 1 through the inlet pipe 15. Larger solid particles in the wastewater are removed by the baffle 16. The baffle 16 is removed from the treatment tank 1 through the cover plate 18 for easy cleaning, ensuring treatment quality. The wastewater flows at the top of the partition 2, passing sequentially through the gravel packing 9, soil packing 10, and activated carbon packing 11 for adsorption. This allows for repeated filtration, effectively removing nitrogen and phosphorus from the wastewater. Unscrewing the fixing bolts and pulling the pull frame 8 moves the mounting plate 6 and the sealing... The sealing plate 5 and the mesh frame 4 are removed from the treatment box 1 to facilitate the replacement of the packing material and ensure the treatment effect of the sewage. The sealing ring 7 can increase the sealing effect. The sewage can be treated by secondary phosphorus and nitrogen removal process through the nitrifying bacteria reactor 12 and the polyphosphate-accumulating bacteria reactor 13, neutralizing phosphorus and nitrogen compounds and improving the treatment effect of the sewage. The purification effect is good. The treated sewage is input into the aeration box 24 through the connecting pipe 25. The aerator 27 is started to aerate the treated water through the aeration pipe 28 and the aeration head 29, and then discharged to the outside through the outlet pipe 30.

[0022] Example 2

[0023] like Figures 2 to 4As shown, based on Example 1, it also includes a dosing pipe 19 connected to the top of the treatment tank 1, a gearbox 20 fixedly installed on the left side wall of the treatment tank 1, a rotating rod 21 connected to the output end of the gearbox 20 through the side wall of the treatment tank 1, a plurality of stirring rods 23 of different lengths evenly installed on the outer wall of the rotating rod 21, an input end of the gearbox 20 connected to the output end of the drive motor 22, a nitrogen and phosphorus detector 26 installed at the bottom right end of the treatment tank 1, an input end of the return pipe 31 connected to the lower part of the treatment tank 1, a water pump 32 installed on the return pipe 31, and an output end of the return pipe 31 connected to the rear end of the water distribution pipe 14 through a connector 33.

[0024] Open the dosing pipe 19 to add denitrification and phosphorus removal chemicals into the treatment tank 1. Start the drive motor 22 to drive the rotating rod 21 to rotate through the gearbox 20. The rotating rod 21 drives the stirring rod 23 to rotate to mix the chemicals and sewage, separating harmful substances in the sewage and achieving denitrification and phosphorus removal treatment. The treated water is tested by the nitrogen and phosphorus detector 26. If the quality is not up to standard, start the water pump 32 to draw water through the return pipe 31 and reintroduce it into the distribution pipe 14 through the connector 33, so that the water re-enters the treatment tank 1 for further purification treatment. If the quality is up to standard, the solenoid valve opens and the water is discharged into the aeration tank 24 through the connecting pipe 25.

[0025] like Figures 1 to 5 As shown, this utility model discloses a wastewater nitrogen and phosphorus removal device. During operation, wastewater enters through the input pipe 17 into the distribution pipe 14, and then is evenly fed into the treatment tank 1 through the inlet pipe 15. Larger solid particles in the wastewater are removed by the baffle 16. The dosing pipe 19 is opened to add denitrification and phosphorus removal chemicals into the treatment tank 1. The drive motor 22 is started, driving the rotating rod 21 via the gearbox 20. The rotating rod 21 drives the stirring rod 23 to mix the chemicals and wastewater, separating harmful substances from the wastewater. The wastewater flows at the top of the baffle 2, sequentially passing through gravel packing 9, soil packing 10, and activated carbon packing 11 to complete the adsorption process. This process can be repeated multiple times. The system filters effectively removes nitrogen and phosphorus from wastewater. A secondary phosphorus and nitrogen removal process is then performed using nitrifying bacteria reactor 12 and polyphosphate-accumulating bacteria reactor 13 to neutralize phosphorus and nitrogen compounds. The treated water is then tested using nitrogen and phosphorus detector 26. If the quality is substandard, water pump 32 is activated to extract water through return pipe 31 and re-input it into distribution pipe 14 via connector 33, allowing the water to re-enter treatment tank 1 for further purification. If the quality is acceptable, the solenoid valve opens, and wastewater is input into aeration tank 24 through connector 25. Aerator 27 is activated to aerate the treated water through aeration pipe 28 and aeration head 29 before discharging it through outlet pipe 30.

[0026] The gravel packing 9, soil packing 10, activated carbon packing 11, nitrifying bacteria reactor 12, polyphosphate-accumulating bacteria reactor 13, gearbox 20, drive motor 22, aerator 27 and water pump 32 of the wastewater nitrogen and phosphorus removal device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for removing nitrogen and phosphorus from sewage, characterized by comprising: The utility model relates to a water purifying device, including processing box (1), a plurality of partitions (2), fixed frame (3), adsorption subassembly, processing subassembly, water inlet subassembly and water outlet subassembly, a plurality of partitions (2) are alternately inclined installation in the left and right two ends inner wall of processing box (1), one end fixed mounting of partition (2) has fixed frame (3), adsorption subassembly is installed in the lateral wall of processing box (1) and is installed on fixed frame (3), processing subassembly is installed on the inside partition (2) upper end of processing box (1), water inlet subassembly is installed in the top right end of processing box (1), and water outlet subassembly is installed in the inner wall bottom end of processing box (1).

2. The device for removing nitrogen and phosphorus from sewage according to claim 1, characterized in that, Adsorption subassembly includes a plurality of net frame (4), a plurality of sealing plate (5), a plurality of mounting plate (6), a plurality of sealing ring (7), a plurality of groups of pull frame (8), a plurality of gravel fillings (9), a plurality of soil fillings (10) and a plurality of activated carbon fillings (11), a plurality of net frame (4) are inserted and installed on fixed frame (3) through the lateral wall of processing box (1), the inside of net frame (4) is sequentially added from top to bottom with bagged gravel fillings (9), soil fillings (10) and activated carbon fillings (11), the outer wall of net frame (4) is connected with sealing plate (5), the outer wall of sealing plate (5) is connected with mounting plate (6), mounting plate (6) is installed on the outer wall of processing box (1) by bolt, the inner wall of mounting plate (6) is fixedly connected with sealing ring (7), the outer wall of mounting plate (6) is provided with sealing groove matched with sealing ring (7), and pull frame (8) is installed on the outer wall of mounting plate (6).

3. The device for removing nitrogen and phosphorus from sewage according to claim 1, characterized in that, Processing subassembly includes a plurality of nitrifying bacteria reactors (12) and a plurality of polyphosphorus bacteria reactors (13), a plurality of nitrifying bacteria reactors (12) are evenly installed on the top of the second layer partition (2) and the inner wall of processing box (1), and a plurality of polyphosphorus bacteria reactors (13) are evenly installed on the top of the third layer partition (2) and the inner wall of processing box (1).

4. The device for removing nitrogen and phosphorus from sewage according to claim 1, characterized in that, Water inlet subassembly includes a plurality of water inlet pipes (15), a baffle (16), an input pipe (17) and a cover plate (18), the bottom of the water distribution pipe (14) is uniformly connected with a plurality of water inlet pipes (15), the water inlet pipes (15) are installed on the top left end of the processing box (1), the output end of the water inlet pipe (15) is communicated with the inside of the processing box (1), the baffle (16) is inserted and installed on the right side wall of the processing box (1), the rear end of the baffle (16) is connected with the cover plate (18), the cover plate (18) is sealingly connected on the left side wall of the processing box (1), and the input end of the water distribution pipe (14) is connected with the input pipe (17).

5. The device for removing nitrogen and phosphorus from sewage according to claim 1, characterized in that, It also includes a dosing pipe (19), a transmission (20), a rotating rod (21), a driving motor (22) and a plurality of stirring rods (23), the dosing pipe (19) is connected to the top end of the processing box (1), the transmission (20) is fixedly installed on the left side wall of the processing box (1), the output end of the transmission (20) is connected with the rotating rod (21) through the lateral wall of the processing box (1), a plurality of stirring rods (23) with different lengths are uniformly installed on the outer wall of the rotating rod (21), and the input end of the transmission (20) is connected with the output end of the driving motor (22).

6. The device for removing nitrogen and phosphorus from sewage according to claim 1, characterized in that, The water outlet assembly comprises an aeration tank (24), a connecting pipe (25), an aerator (27), an aeration pipe (28), an aeration head (29) and a water outlet pipe (30), the aeration tank (24) is fixedly installed at the inner end of the treatment tank (1), the connecting pipe (25) is fixedly installed at the lower end of the right side wall of the aeration tank (24), an electromagnetic valve is arranged in the connecting pipe (25), the aerator (27) is installed on the left side wall of the treatment tank (1), the output end of the aerator (27) is connected with the aeration pipe (28) penetrating through the side wall of the treatment tank (1), and the aeration head (29) is installed on the aeration pipe (28).

7. The device for removing nitrogen and phosphorus from sewage according to claim 4, characterized in that, The nitrogen and phosphorus detector (26), the backflow pipe (31), the water pump (32) and the connecting head (33) are further included, the nitrogen and phosphorus detector (26) is installed at the bottom right end of the treatment tank (1), the input end of the backflow pipe (31) is communicated with the lower part of the treatment tank (1), the water pump (32) is installed on the backflow pipe (31), and the output end of the backflow pipe (31) is connected with the rear end of the water distribution pipe (14) through the connecting head (33).

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