A method and system for treating high-concentration ammonia nitrogen wastewater by anaerobic ammonia oxidation.

Abstract

This invention discloses a method and system for treating high-concentration ammonia nitrogen wastewater by anaerobic ammonia oxidation, comprising a treatment frame and a sequencing batch reactor (SBR), and a feeding module. The SBR is located at the bottom of the inner wall of the treatment frame, and the left and right walls of the treatment frame are connected by connecting pipes. The feeding module includes a liquid injection frame, a control rod, a control plate, a liquid injection port, a feeding frame, a support frame, a liquid injection rack, a liquid injection spring, a feeding pipe, and a feeding port. The liquid injection frame is fixedly installed at the top of the treatment frame. The control rod rotates through the left and right walls of the liquid injection frame, and the feeding pipe moves downward, causing the liquid injection port to disengage from the treatment frame. The liquid injection port disengages from the treatment frame and releases its own seal. Intermittent sealing of the feeding pipe can form a physical barrier to prevent aerosol backflow, thereby reducing buffer failure caused by aerosol contamination. This invention has the characteristic of preventing a large amount of aerosol backflow from contaminating the buffer.

Description

Technical Field

[0001] This invention relates to the field of high-concentration ammonia nitrogen wastewater treatment technology, specifically to a method and system for treating high-concentration ammonia nitrogen wastewater by anaerobic ammonia oxidation. Background Technology

[0002] The pretreated wastewater enters the anaerobic reactor. In the anaerobic environment, anaerobic ammonia-oxidizing bacteria use ammonia nitrogen as an electron donor and nitrite nitrogen as an electron acceptor to convert both into nitrogen gas. The reaction process requires temperature and pH control, and the attachment of the bacterial community is enhanced by a carrier to ensure that the high concentration of ammonia nitrogen is fully degraded. In addition, a buffer needs to be added during this process to adjust the wastewater concentration.

[0003] Patent publication number CN221093932U relates to a UASB anaerobic ammonia oxidation treatment device for nitrogen-containing industrial wastewater. The device includes a base frame, on which a filtration sedimentation tank, a biological reaction chamber, and an anaerobic ammonia oxidation reactor are fixedly installed sequentially from left to right on the top of the base frame. A crushing mechanism is located on the top of the filtration sedimentation tank, adjacent to the gas collection hood. A sewage discharge sealing plate is fixedly installed at the bottom front end of the filtration sedimentation tank. A slot is fixedly opened at the front end of the filtration sedimentation tank, with sliding grooves fixedly opened on both sides inside the slot. A filtration mechanism is installed inside the slot. Through the combined use of the crushing and filtration mechanisms, the UASB anaerobic ammonia oxidation treatment device for nitrogen-containing industrial wastewater can directly crush larger impurities and debris in the wastewater after it is discharged through the pipeline, preventing blockage of the treatment device's pipeline and ensuring that the treatment device can treat wastewater normally and stably.

[0004] In the aforementioned patent, larger impurities and debris in the wastewater are directly crushed to prevent blockages in the treatment device's pipes, ensuring the device can treat wastewater normally and stably. However, aerosols of unreacted substrates are generated within the treatment frame due to agitation. If the feed pipe remains open for an extended period, these aerosols can flow back into the feed pipe via airflow, contaminating the buffer stored in the feed frame and causing secondary pollution during subsequent additions. Therefore, it is essential to design a highly practical anaerobic ammonia oxidation treatment system for high-concentration ammonia nitrogen wastewater that also prevents large amounts of aerosol from flowing back and contaminating the buffer. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for treating high-concentration ammonia nitrogen wastewater by anaerobic ammonia oxidation, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a treatment system for anaerobic ammonia oxidation of high-concentration ammonia nitrogen wastewater, comprising a treatment frame and a sequencing batch reactor (SBR), and further comprising a feeding module. The SBR is disposed at the bottom of the inner wall of the treatment frame, and the left and right walls of the treatment frame are provided with connecting pipes. The feeding module comprises a liquid injection frame, a control rod, a control plate, a liquid injection port, a feeding frame, a support frame, a liquid injection rack, a liquid injection spring, a feeding pipe, and a feeding port. The liquid injection frame is fixedly installed on the top of the treatment frame. The control rod rotates through the left and right walls of the liquid injection frame. The control plate is fixedly installed on the circumferential surface of the control rod. The feeding frame is fixedly installed on the top of the treatment frame. The support frame is fixedly installed on the inner wall of the feeding frame. The liquid injection rack is slidably installed... The liquid injection rack, installed on the inner wall of the feeding frame, is used to squeeze undissolved sodium bicarbonate. The liquid injection spring is located between the support frame and the liquid injection rack. When the liquid injection rack moves downward, it pulls the liquid injection spring, causing the spring to deform and store force. After the liquid injection rack disengages from the control panel, the liquid injection spring can drive the liquid injection rack to reset. The feeding pipe slides through the bottom of the feeding frame, and the feeding port and the liquid injection port are both located on the circumference of the feeding pipe. The feeding frame contains a buffer, which is a mixture of water and sodium bicarbonate particles. When the feeding pipe moves downward, the liquid injection port disengages from the processing frame, releasing its seal.

[0007] According to the above technical solution, the side of the control plate away from the control rod is set as an inclined surface, the control rod passes through the left side of the feeding frame, and a sealing ring is provided between the control rod and the feeding frame. The sealing ring can increase the sealing between the control rod and the feeding frame. The vertical reciprocating movement of the liquid feeding rack squeezes the undissolved sodium bicarbonate inside the feeding frame.

[0008] According to the above technical solution, it also includes a filtration module and a material guiding module. The filtration module is used to prevent foreign objects from interfering with the wastewater treatment effect, and the material guiding module is used to guide the additives. The filtration module includes a pressing plate, a pressing roller, a load-bearing plate, a filter plate, and a filter spring. The filter plate reciprocates to separate foreign objects entering the high-concentration ammonia nitrogen wastewater inside the treatment frame. The pressing plate is fixedly installed on the circumferential surface of the control rod. The pressing roller is rotatably installed on the inner wall of the pressing plate. The load-bearing plate is fixedly installed on the top of the inner wall of the treatment frame. The filter plate is slidably installed on the inner wall of the liquid feeding frame. The filter spring is set between the load-bearing plate and the filter plate. When the filter plate moves downward, it squeezes the filter spring. The filter spring deforms and stores force under the pressure of the filter plate. After the filter plate is separated from the pressing roller, the filter spring can drive the filter plate to reset.

[0009] According to the above technical solution, the filter module also includes a Y-shaped frame and a pressing port. The Y-shaped frame is fixedly installed on the top of the load-bearing plate, and the pressing port is opened on the top of the pressing plate. The pressing plate rotates to shield and buffer larger foreign objects in the high-concentration ammonia nitrogen wastewater, thereby preventing larger foreign objects from directly impacting the filter plate and causing deformation of the filter plate.

[0010] According to the above technical solution, the filter plate is in contact with the inner wall of the processing frame, and a torsion spring is provided between the pressing plate and the pressing roller, which can support the pressing plate and the pressing roller.

[0011] According to the above technical solution, the feeding module includes a connecting frame, a drive rack, a return spring, a liquid guide tube, and a dispensing tube. The rotation of the dispensing tube causes the buffer inside the dispensing tube to rotate. Under the action of centrifugal force, the buffer inside the dispensing tube is thrown out from the dispensing tube into the processing frame. The connecting frame is fixedly installed on the top of the inner wall of the processing frame. The drive rack is slidably installed on the top of the inner wall of the processing frame. The return spring is disposed between the connecting frame and the drive rack. The drive rack moves to the right to squeeze the return spring. The return spring is deformed and stores force under the squeezing of the drive rack. After the drive rack is separated from the filter plate, the return spring can drive the drive rack to return to its original position. The liquid guide tube is rotatably installed on the top of the inner wall of the processing frame, and the dispensing tube is fixedly installed on the circumferential surface of the liquid guide tube.

[0012] According to the above technical solution, the feeding module further includes a drive gear and a curved panel. The drive gear is fixedly installed on the circumferential surface of the liquid guide tube, and the curved panel is fixedly installed on the left side of the connecting frame. The liquid distribution tube is elastic and deforms under the reaction force of the curved panel.

[0013] According to the above technical solution, the drive gear meshes with the drive rack, the liquid distribution tube contacts the curved panel, the left side of the drive rack is set as an inclined surface, the drive rack contacts the bottom of the filter plate, and the liquid distribution tube will contact the curved panel and squeeze the curved panel when it rotates.

[0014] A method for treating high-concentration ammonia nitrogen wastewater using anaerobic ammonia oxidation, employing the aforementioned anaerobic ammonia oxidation system for treating high-concentration ammonia nitrogen wastewater, includes the following steps:

[0015] Step 1: A servo motor is installed on the left side of the liquid dispensing frame, and the output end of the servo motor is fixedly connected to the control rod. The operation of the servo motor drives the control rod to rotate, and the rotation of the control rod drives the control plate to rotate. The rotation of the control plate contacts the liquid dispensing frame and squeezes the liquid dispensing frame.

[0016] Step 2: The liquid feeding rack moves downward under the pressure of the control plate. The downward movement of the liquid feeding rack drives the feeding pipe to move downward. The downward movement of the feeding pipe causes the feeding port to contact the processing frame. The feeding port is blocked and sealed by the processing frame.

[0017] Step 3: The feed pipe moves downward so that the inlet is no longer in contact with the treatment frame. The inlet is no longer in contact with the treatment frame and the seal of the inlet is released. After the seal of the inlet is released, the metered buffer inside the feed pipe is added to the treatment frame through the inlet and mixed with the high-concentration ammonia nitrogen wastewater.

[0018] Step 4: Pump the high-concentration ammonia nitrogen wastewater mixed with buffer into the sequencing batch reactor, simultaneously add buffer and trace elements, and avoid inhibiting anaerobic ammonia oxidizing bacteria. In the closed sequencing batch reactor, ensure that the substrate and bacteria are in full contact by stirring. Adjust the reaction time according to the concentration and monitor the substrate concentration in real time to avoid toxicity accumulation.

[0019] Step 5: Stop stirring and allow the sludge to settle to achieve solid-liquid separation, and discharge the supernatant to ensure that the ammonia nitrogen in the effluent meets the standards.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0021] (1) In this invention, the quantitative buffer inside the feed pipe is added to the treatment frame through the liquid inlet and mixed with the high-concentration ammonia nitrogen wastewater. The quantitative addition of the buffer can avoid reaction stagnation caused by excessive or insufficient addition, thereby improving the stability of the high-concentration ammonia nitrogen wastewater treatment. Moreover, the timing of addition matches the reaction rhythm of the high-concentration ammonia nitrogen wastewater in the treatment frame, solving the problem of unstable buffer dosage and asynchronous reaction demand in traditional static addition. The liquid inlet spring drives the liquid inlet rack and feed pipe to reset upwards, and the intermittent sealing of the feed pipe can form a physical barrier to prevent aerosol backflow, thereby reducing buffer failure caused by aerosol pollution and further improving the treatment effect of high-concentration ammonia nitrogen wastewater.

[0022] (2) In this invention, the vertical reciprocating movement of the liquid feeding rack squeezes the undissolved sodium bicarbonate inside the feeding frame. The sodium bicarbonate is squeezed by the liquid feeding rack, thereby accelerating the dissolution of sodium bicarbonate and ensuring that the buffer concentration meets the standard. The squeezing action of the liquid feeding rack can accelerate the dissolution of sodium bicarbonate and increase its contact area with water, thereby enabling the buffer to take effect quickly and avoiding short-term pH loss of high-concentration ammonia nitrogen wastewater due to dissolution lag.

[0023] (3) The invention separates foreign matter from high-concentration ammonia nitrogen wastewater by reciprocating the filter plate. The downward movement of the filter plate will cause it to hit the Y-shaped frame and shake. The reciprocating movement and shaking of the filter plate will create water flow disturbance in the treatment frame, so that the fine suspended matter that is not intercepted is evenly dispersed, avoiding local accumulation, thereby stabilizing the treatment environment of high-concentration ammonia nitrogen wastewater.

[0024] (4) In this invention, the rotating pressing plate shields and buffers larger foreign objects in high-concentration ammonia nitrogen wastewater, thereby preventing larger foreign objects from directly impacting the filter plate and causing the filter plate to deform. Deformation of the filter plate will result in gaps or larger filter holes, and foreign objects that should have been intercepted will directly penetrate into the sequencing batch reactor. The rotating pressing plate can physically buffer and disperse the impact force, thereby ensuring a long-term stable filtration effect.

[0025] (5) In this invention, the buffer inside the separator is thrown out into the treatment frame under the action of centrifugal force. If the buffer relies only on gravity dripping or static injection, it is easy to form a high concentration area in a local area, which cannot neutralize the acid fluctuation of the whole water body in time. Under the action of centrifugal force, the buffer is thrown out in the form of fine droplets, the dispersion range is wider and the contact area with the wastewater is significantly increased, thereby avoiding the reduction of treatment effect caused by uneven dispersion of the buffer.

[0026] (6) In this invention, the separator is deformed by the reaction force of the squeezed curved panel. The deformation of the separator prevents the separator from becoming blocked and causing the buffer to remain inside the separator. When the existing separator becomes blocked, the retained buffer will harden due to long-term standing, and the pipe needs to be disassembled for cleaning. The deformation design of the separator can achieve self-cleaning through the reaction force. The internal stress generated by the deformation will cause the residual buffer to be discharged, thereby ensuring the continuity of high-concentration ammonia nitrogen wastewater treatment. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the half-section structure of the processing frame of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal structure of the liquid dosing frame of the present invention;

[0031] Figure 4 This is the present invention. Figure 3 Enlarged schematic diagram of section A in the middle;

[0032] Figure 5 This is a schematic diagram of the position structure of the connecting frame and the curved panel of the present invention;

[0033] Figure 6 This is a schematic diagram of the position structure of the control lever and the pressing plate of the present invention;

[0034] Figure 7 This is a schematic diagram of a half-section of the feed frame structure of the present invention;

[0035] Figure 8 This is the present invention. Figure 7 Enlarged schematic diagram of part B in the middle.

[0036] In the diagram: 1. Processing frame; 2. Connecting pipe; 3. Liquid injection frame; 4. Control rod; 5. Control panel; 6. Liquid injection port; 7. Feeding frame; 8. Support frame; 9. Liquid injection rack; 10. Liquid injection spring; 11. Feeding pipe; 12. Feeding port; 131. Pressing plate; 132. Pressing roller; 133. Load-bearing plate; 134. Filter plate; 135. Filtering spring; 136. Y-shaped frame; 137. Pressing port; 141. Connecting frame; 142. Drive rack; 143. Reset spring; 144. Liquid guide pipe; 145. Liquid distribution pipe; 146. Drive gear; 147. Curved panel. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0038] Please see Figure 1-7This invention provides a technical solution: a treatment system for anaerobic ammonia oxidation of high-concentration ammonia nitrogen wastewater, comprising a treatment frame 1 and a sequencing batch reactor (SBR), and a feeding module. The SBR is located at the bottom of the inner wall of the treatment frame 1, and the left and right walls of the treatment frame 1 are connected by connecting pipes 2. The feeding module includes a liquid feeding frame 3, a control rod 4, a control plate 5, a liquid feeding port 6, a feeding frame 7, a support frame 8, a liquid feeding rack 9, a liquid feeding spring 10, a feeding pipe 11, and a feeding port 12. The liquid feeding frame 3 is fixedly installed on the top of the treatment frame 1. The control rod 4 rotates through the left and right walls of the liquid feeding frame 3. The control plate 5 is fixedly installed on the circumferential surface of the control rod 4. The feeding frame 7 is fixedly installed on the top of the treatment frame 1. The support frame 8 is fixedly installed on the inner wall of the feeding frame 7. The liquid feeding rack 9 is slidably installed on the inner wall of the feeding frame 7. The liquid feeding rack 9 is used to squeeze undissolved sodium bicarbonate. A liquid spring 10 is installed between the support frame 8 and the liquid feeding frame 9. When the liquid feeding frame 9 moves downward, it pulls the liquid feeding spring 10. The liquid feeding spring 10 deforms and stores force under the pull of the liquid feeding frame 9. After the liquid feeding frame 9 is separated from the control panel 5, the liquid feeding spring 10 can drive the liquid feeding frame 9 to reset. The feed pipe 11 slides through the bottom of the feed frame 7. The feed port 12 is opened on the circumferential surface of the feed pipe 11, and the liquid feeding port 6 is opened on the circumferential surface of the feed pipe 11. The feed frame 7 is filled with a buffer, which is made by mixing water and sodium bicarbonate particles. The liquid feeding spring 10 drives the liquid feeding frame 9 and the feed pipe 11 to reset upward. Intermittent sealing of the feed pipe 11 can form a physical barrier to prevent aerosol backflow, thereby reducing the failure of the buffer due to aerosol pollution and further improving the treatment effect of high-concentration ammonia nitrogen wastewater.

[0039] The side of the control panel 5 away from the control rod 4 is set as an inclined surface. The control rod 4 passes through the left side of the feeding frame 7. A sealing ring is set between the control rod 4 and the feeding frame 7. The sealing ring can increase the sealing between the control rod 4 and the feeding frame 7. The liquid feeding rack 9 moves vertically and reciprocally to squeeze the undissolved sodium bicarbonate inside the feeding frame 7. The quantitative addition of buffer can avoid reaction stagnation caused by over- or under-addition, thereby improving the stability of the high-concentration ammonia nitrogen wastewater treatment system. The squeezing action of the liquid feeding rack 9 can accelerate the dissolution of sodium bicarbonate and increase its contact area with water, so that the buffer can take effect quickly and avoid short-term pH loss of high-concentration ammonia nitrogen wastewater due to dissolution lag.

[0040] A method for treating high-concentration ammonia nitrogen wastewater using anaerobic ammonia oxidation, employing the aforementioned anaerobic ammonia oxidation system for treating high-concentration ammonia nitrogen wastewater, includes the following steps:

[0041] Step 1: A servo motor is installed on the left side of the liquid dispensing frame 3, and the output end of the servo motor is fixedly connected to the control rod 4. The operation of the servo motor drives the control rod 4 to rotate, and the rotation of the control rod 4 drives the control plate 5 to rotate. The rotation of the control plate 5 contacts the liquid dispensing rack 9 and squeezes the liquid dispensing rack 9.

[0042] Step 2: The liquid feeding rack 9 moves downward under the pressure of the control plate 5. The downward movement of the liquid feeding rack 9 drives the feeding pipe 11 to move downward. The downward movement of the feeding pipe 11 causes the feeding port 12 to contact the processing frame 1. The feeding port 12 is blocked and sealed by the processing frame 1 when it contacts the processing frame 1.

[0043] Step 3: The feed pipe 11 moves downward so that the inlet 6 is no longer in contact with the treatment frame 1. The inlet 6 is no longer in contact with the treatment frame 1 and the seal of the inlet 6 is released. After the seal of the inlet 6 is released, the quantitative buffer inside the feed pipe 11 is added to the treatment frame 1 through the inlet 6 and mixed with the high concentration of ammonia nitrogen wastewater.

[0044] Step 4: Pump the high-concentration ammonia nitrogen wastewater mixed with buffer into the sequencing batch reactor, simultaneously add buffer and trace elements, and avoid inhibiting anaerobic ammonia oxidizing bacteria. In the closed sequencing batch reactor, ensure that the substrate and bacteria are in full contact by stirring. Adjust the reaction time according to the concentration and monitor the substrate concentration in real time to avoid toxicity accumulation.

[0045] Step 5: Stop stirring and allow the sludge to settle to achieve solid-liquid separation, and discharge the supernatant to ensure that the ammonia nitrogen in the effluent meets the standards.

[0046] During operation, a servo motor is installed on the left side of the liquid feeding frame 3, and the output end of the servo motor is fixedly connected to the control rod 4. The servo motor drives the control rod 4 to rotate, which in turn drives the control plate 5 to rotate. The control plate 5 rotates and contacts the liquid feeding rack 9, squeezing it. The liquid feeding rack 9 moves downward under the pressure of the control plate 5. As the servo motor continues to operate, it drives the control rod 4 to rotate continuously, which in turn drives the control plate 5 to rotate continuously. The control plate 5 rotates continuously and disengages from the liquid feeding rack 9. After the liquid feeding rack 9 disengages from the control plate 5, it moves upward and resets under the elastic force of the liquid feeding spring 10. The vertical reciprocating movement of the liquid feeding rack 9 dispenses undissolved bicarbonate into the feeding frame 7. Sodium is compressed, and sodium bicarbonate is compressed by the dosing rack 9, which accelerates the dissolution of sodium bicarbonate and ensures that the buffer concentration reaches the standard. At the same time, the dosing rack 9 moves downward, causing the feed pipe 11 to move downward. The feed pipe 11 moves downward, so that the feed port 12 contacts the treatment frame 1. The feed port 12 is blocked and sealed by the treatment frame 1. At the same time, the feed pipe 11 moves downward, so that the dosing port 6 is separated from the treatment frame 1. The dosing port 6 is separated from the treatment frame 1 and its own seal is released. After the seal of the dosing port 6 is released, the quantitative buffer inside the feed pipe 11 is added to the treatment frame 1 through the dosing port 6 and mixed with the high-concentration ammonia nitrogen wastewater, thereby improving the efficiency of high-concentration ammonia nitrogen wastewater treatment. Example

[0047] Please see Figure 1-8Based on Embodiment 1, this embodiment further includes a filtration module and a material guiding module. The filtration module is used to prevent foreign objects from interfering with the wastewater treatment effect, and the material guiding module is used to guide the additives. The filtration module includes a pressing plate 131, a pressing roller 132, a supporting plate 133, a filter plate 134, and a filter spring 135. The pressing plate 131 is fixedly installed on the circumferential surface of the control rod 4, the pressing roller 132 is rotatably installed on the inner wall of the pressing plate 131, the supporting plate 133 is fixedly installed on the top of the inner wall of the treatment frame 1, and the filter plate 134 is slidably installed on the inner wall of the liquid feeding frame 3. The filter spring 135 is positioned between the load-bearing plate 133 and the filter plate 134. The filter plate 134 moves downward and compresses the filter spring 135. The filter spring 135 deforms and stores force under the compression of the filter plate 134. After the filter plate 134 disengages from the press roller 132, the filter spring 135 can drive the filter plate 134 to reset. The reciprocating movement and shaking of the filter plate 134 will create water flow disturbance within the treatment frame 1, which will evenly disperse the fine suspended matter that has not been intercepted, avoid local accumulation, and thus stabilize the treatment environment of high-concentration ammonia nitrogen wastewater.

[0048] The filtration module also includes a Y-shaped frame 136 and a pressing port 137. The Y-shaped frame 136 is fixedly installed on the top of the load-bearing plate 133, and the pressing port 137 is opened on the top of the pressing plate 131. The pressing plate 131 rotates to shield and buffer larger foreign objects in high-concentration ammonia nitrogen wastewater, thereby preventing larger foreign objects from directly impacting the filter plate 134 and causing deformation of the filter plate 134. Deformation of the filter plate 134 will result in gaps or larger filter pore sizes, and foreign objects that should have been intercepted will directly penetrate into the sequencing batch reactor. The rotation shielding of the pressing plate 131 can physically buffer and disperse the impact force, thereby ensuring a long-term stable filtration effect.

[0049] The filter plate 134 contacts the inner wall of the processing frame 1. A torsion spring is provided between the pressing plate 131 and the pressing roller 132, which can support the pressing plate 131 and the pressing roller 132.

[0050] The feeding module includes a connecting frame 141, a drive rack 142, a return spring 143, a liquid guide pipe 144, and a liquid distribution pipe 145. The connecting frame 141 is fixedly installed on the top of the inner wall of the processing frame 1. The drive rack 142 is slidably installed on the top of the inner wall of the processing frame 1. The return spring 143 is located between the connecting frame 141 and the drive rack 142. When the drive rack 142 moves to the right, it squeezes the return spring 143. The return spring 143 deforms and stores force under the pressure of the drive rack 142. After the drive rack 142 disengages from the filter plate 134, the return spring 143 can drive the drive rack 142 to return to its original position. The liquid guide pipe 144 is rotatably installed on the top of the inner wall of the processing frame 1. The liquid distribution pipe 145 is fixedly installed on the circumferential surface of the liquid guide pipe 144. Under the action of centrifugal force, the buffer is thrown out in the form of fine droplets, resulting in a wider dispersion range and a significantly increased contact area with the wastewater, thereby avoiding the reduction in treatment effect caused by uneven dispersion of the buffer.

[0051] The feeding module also includes a drive gear 146 and a curved panel 147. The drive gear 146 is fixedly installed on the circumferential surface of the liquid guide tube 144, and the curved panel 147 is fixedly installed on the left side of the connecting frame 141. The liquid distribution tube 145 is elastic and deforms under the reaction force of the curved panel 147.

[0052] The drive gear 146 meshes with the drive rack 142, the liquid distribution pipe 145 contacts the curved panel 147, the left side of the drive rack 142 is set as an inclined surface, the drive rack 142 contacts the bottom of the filter plate 134, when the liquid distribution pipe 145 rotates, it will contact the curved panel 147 and squeeze the curved panel 147. When the existing liquid distribution pipe 145 is blocked, the retained buffer will harden due to long-term static storage, and the pipe needs to be disassembled and cleaned. The deformation design of the liquid distribution pipe 145 can achieve self-cleaning through reaction force. The internal stress generated by the deformation will cause the residual buffer to be discharged, thereby ensuring the continuity of high-concentration ammonia nitrogen wastewater treatment.

[0053] During operation, the control lever 4 rotates, causing the pressing plate 131 to rotate. The pressing plate 131 then rotates, causing the pressing roller 132 to rotate. The pressing roller 132 rotates and contacts the filter plate 134, squeezing it. The filter plate 134 moves downwards under the pressure of the pressing roller 132. As the control lever 4 continues to rotate, the pressing plate 131 continues to rotate, which in turn drives the pressing roller 132 to rotate continuously. The pressing roller 132 then disengages from the filter plate 134, allowing the filter plate to return to its original position. After the filter plate 134 disengages from the pressing roller 132, the filter plate 134 moves upward and resets under the elastic force of the filter spring 135. The filter plate 134 moves back and forth to separate foreign objects from the high-concentration ammonia nitrogen wastewater that enters the processing frame 1. The downward movement of the filter plate 134 will cause it to hit the Y-shaped frame 136 and vibrate. At the same time, the pressing plate 131 rotates to shield and buffer larger foreign objects in the high-concentration ammonia nitrogen wastewater, thereby preventing larger foreign objects from directly hitting the filter plate 134 and causing the filter plate 134 to deform.

[0054] The filter plate 134 moves downwards to contact the inclined surface of the drive rack 142 and squeezes the drive rack 142. The drive rack 142, squeezed by the filter plate 134, moves to the right, squeezing the drive gear 146. The drive gear 146 rotates due to the squeezing, causing the liquid guide tube 144 to rotate. The rotation of the liquid guide tube 144 causes the dispensing tube 145 to rotate, which in turn causes the buffer inside the dispensing tube 145 to rotate. Under centrifugal force, the buffer inside the dispensing tube 145 is thrown out from the dispensing tube 145 into the processing frame 1. When the filter plate 134 returns to its original position by the upward movement of the filter spring 135, the filter plate 134... The drive rack 142 moves upward to reset and disengage from the drive rack 142. After the drive rack 142 disengages from the filter plate 134, it moves to the left under the action of the reset spring 143. The leftward movement of the drive rack 142 drives the drive gear 146 to reverse and reset. The reverse reset of the drive gear 146 drives the liquid guide tube 144 to reverse and reset. The reverse reset of the liquid guide tube 144 drives the liquid distribution tube 145 to reverse and reset. At the same time, when the liquid distribution tube 145 rotates, it will contact the curved panel 147 and squeeze the curved panel 147. The liquid distribution tube 145 is deformed by the reaction force of the squeezed curved panel 147. The deformation of the liquid distribution tube 145 prevents the liquid distribution tube 145 from becoming blocked and causing the buffer to remain inside the liquid distribution tube 145.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A treatment system for anaerobic ammonia oxidation of high-concentration ammonia nitrogen wastewater, comprising a treatment frame (1) and a sequencing batch reactor, characterized in that: It also includes a feeding module, a filtering module and a guiding module. The sequencing batch reactor is located at the bottom of the inner wall of the processing frame (1), and the left and right walls of the processing frame (1) are provided with connecting pipes (2). The feeding module also includes a liquid injection frame (3), a control rod (4), a control plate (5), a liquid injection port (6), a feeding frame (7), a support frame (8), a liquid injection rack (9), a liquid injection spring (10), a feeding pipe (11), and a feeding port (12). The liquid injection frame (3) is fixedly installed on the top of the processing frame (1). The control rod (4) rotates through the left and right walls of the liquid injection frame (3). The control plate (5) is fixedly installed on the circumferential surface of the control rod (4). The feeding frame (7) is fixedly installed on the top of the processing frame (1). The support frame (8), the liquid injection rack (9), the liquid injection spring (10), the feeding pipe (11), and the feeding port (12) are all included. The frame (8) is fixedly installed on the inner wall of the feeding frame (7), the liquid feeding frame (9) is slidably installed on the inner wall of the feeding frame (7), the liquid feeding frame (9) is used to squeeze the undissolved sodium bicarbonate, the liquid feeding spring (10) is set between the support frame (8) and the liquid feeding frame (9), the feeding pipe (11) slides through the bottom of the feeding frame (7), the feeding port (12) is opened on the circumferential surface of the feeding pipe (11), the liquid feeding port (6) is opened on the circumferential surface of the feeding pipe (11), and the feeding frame (7) is provided with a buffer. The filtration module is used to prevent foreign objects from interfering with the wastewater treatment effect, and the material guiding module is used to guide the additives. The filtration module includes a pressing plate (131), a pressing roller (132), a load-bearing plate (133), a filter plate (134), and a filter spring (135). The pressing plate (131) is fixedly installed on the circumferential surface of the control rod (4). The pressing roller (132) is rotatably installed on the inner wall of the pressing plate (131). The load-bearing plate (133) is fixedly installed on the top of the inner wall of the processing frame (1). The filter plate (134) is slidably installed on the inner wall of the liquid feeding frame (3). The filter spring (135) is disposed between the load-bearing plate (133) and the filter plate (134). The filter module also includes a Y-shaped frame (136) and a pressing port (137). The Y-shaped frame (136) is fixedly installed on the top of the load-bearing plate (133), and the pressing port (137) is opened on the top of the pressing plate (131). The feeding module includes a connecting frame (141), a drive rack (142), a reset spring (143), a liquid guide tube (144), and a liquid separator (145). The connecting frame (141) is fixedly installed on the top of the inner wall of the processing frame (1). The drive rack (142) is slidably installed on the top of the inner wall of the processing frame (1). The reset spring (143) is disposed between the connecting frame (141) and the drive rack (142). The liquid guide tube (144) is rotatably installed on the top of the inner wall of the processing frame (1). The liquid separator (145) is fixedly installed on the circumferential surface of the liquid guide tube (144). It also includes a drive gear (146) and a curved panel (147), the drive gear (146) being fixedly mounted on the circumferential surface of the liquid guide tube (144), the curved panel (147) being fixedly mounted on the left side of the connecting frame (141), and the liquid distribution tube (145) being elastic; The drive gear (146) meshes with the drive rack (142), the liquid separator (145) contacts the curved panel (147), the left side of the drive rack (142) is set as an inclined surface, and the drive rack (142) contacts the bottom of the filter plate (134).

2. The anaerobic ammonia oxidation treatment system for high-concentration ammonia nitrogen wastewater according to claim 1, characterized in that: The side of the control plate (5) away from the control rod (4) is set as an inclined surface. The control rod (4) passes through the left side of the feeding frame (7). A sealing ring is provided between the control rod (4) and the feeding frame (7).

3. The anaerobic ammonia oxidation treatment system for high-concentration ammonia nitrogen wastewater according to claim 2, characterized in that: The filter plate (134) is in contact with the inner wall of the processing frame (1), and a torsion spring is provided between the pressing plate (131) and the pressing roller (132).

4. A method for treating high-concentration ammonia nitrogen wastewater by anaerobic ammonia oxidation, using the anaerobic ammonia oxidation treatment system for high-concentration ammonia nitrogen wastewater as described in claim 3, characterized in that, Includes the following steps: Step 1: A servo motor is installed on the left side of the liquid dispensing frame (3), and the output end of the servo motor is fixedly connected to the control rod (4). The servo motor drives the control rod (4) to rotate, and the rotation of the control rod (4) drives the control plate (5) to rotate. The rotation of the control plate (5) contacts the liquid dispensing rack (9) and squeezes the liquid dispensing rack (9). Step 2: The liquid feeding rack (9) is squeezed downward by the control plate (5). The downward movement of the liquid feeding rack (9) drives the feeding pipe (11) to move downward. The downward movement of the feeding pipe (11) causes the feeding port (12) to contact the processing frame (1). The feeding port (12) is blocked and sealed by the processing frame (1). Step 3: The feed pipe (11) moves downward so that the inlet (6) is separated from the treatment frame (1). The inlet (6) is separated from the treatment frame (1) and the seal of the inlet (6) is released. After the seal of the inlet (6) is released, the quantitative buffer inside the feed pipe (11) is added to the treatment frame (1) through the inlet (6) and mixed with the high concentration of ammonia nitrogen wastewater. Step 4: Pump the high-concentration ammonia nitrogen wastewater mixed with buffer into the sequencing batch reactor, simultaneously add buffer and trace elements, and avoid inhibiting anaerobic ammonia oxidizing bacteria. In the closed sequencing batch reactor, ensure that the substrate and bacteria are in full contact by stirring. Adjust the reaction time according to the concentration and monitor the substrate concentration in real time to avoid toxicity accumulation. Step 5: Stop stirring and allow the sludge to settle to achieve solid-liquid separation, and discharge the supernatant to ensure that the ammonia nitrogen in the effluent meets the standards.

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