Anaerobic ammonia oxidation reaction system

Abstract

The anaerobic ammonia oxidation reaction system provided by the utility model is provided with the detection device, so that the concentration of ammonia nitrogen and nitrite nitrogen in inlet water can be detected in real time, and the system can dynamically adjust the aeration process according to the detection result so as to cope with the fluctuation of water quality and create a stable growth environment for anaerobic ammonia oxidation bacteria; meanwhile, the stability of the wastewater treatment process is enhanced, and the wastewater treatment efficiency is improved. In addition, an MRB membrane assembly is installed in the anaerobic ammonia oxidation reactor, loss of granular sludge is effectively prevented, and the recovery rate of the sludge is increased. In order to keep the continuous and efficient operation of the membrane component, a backwashing pipeline is also arranged, so that the long-term stable and efficient operation of the whole anaerobic ammonia oxidation reaction system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sewage treatment, specifically relates to an anaerobic ammonia oxidation reaction system. BACKGROUND

[0002] The existing anaerobic ammonia oxidation treatment system mainly treats the sewage discharged from the workshop production, and due to the instability of water consumption and raw material use of the workshop, the wastewater quality often fluctuates. In order to ensure that the wastewater treatment can meet the discharge standard, the system design is often based on the worst water quality. However, in the actual operation process, the frequent change of water quality causes challenges to the anaerobic ammonia oxidation bacteria AnAOB with high environmental adaptability, resulting in the occurrence of the following problems:

[0003] (1) When the pollutant concentration in the wastewater is lower than the design expectation, the dissolved oxygen (DO) level is continuously high, which destroys the low dissolved oxygen environment required by the anaerobic ammonia oxidation process. If the aeration system is closed in order to reduce the DO value, the mass transfer effect of the sludge is poor, and the reaction efficiency and nitrogen removal rate are reduced. In addition, with the change of water quality, the equipment operation parameters need to be adjusted frequently, which not only increases the workload of manual operation, but also makes maintenance more difficult.

[0004] (2) The fluctuation of wastewater quality makes it difficult to stably maintain control parameters such as dissolved oxygen, pH value and temperature, thereby affecting the stability of the anaerobic ammonia oxidation reaction, and ultimately leading to poor nitrogen removal effect.

[0005] In addition, compared with traditional anaerobic granular sludge, anaerobic ammonia oxidation granular sludge is more fragile, has poor settling performance, and is easy to lose in the reactor. The large loss of such sludge will seriously weaken the treatment capacity of the reactor. INVENTION CONTENTS

[0006] In view of the problems of the existing water quality fluctuation affecting the activity of anaerobic ammonia oxidation bacteria and the treatment effect, and the loss of granular sludge, the utility model provides an anaerobic ammonia oxidation reaction system, which is equipped with a detection device to monitor the ammonia nitrogen value and nitrite nitrogen value of the influent in real time, and adjusts the aeration process according to the detection result to adapt to the water quality fluctuation, provides a stable growth environment for the anaerobic ammonia oxidation bacteria, and improves the stability of the treatment process and the wastewater treatment efficiency. At the same time, an MRB membrane assembly is arranged in the anaerobic ammonia oxidation reaction device to effectively intercept the granular sludge, reduce the loss, improve the sludge utilization rate, and is equipped with a backwashing pipe to maintain the performance of the membrane assembly, and ensure the long-term efficient operation of the entire anaerobic ammonia oxidation reaction device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An anaerobic ammonia oxidation reaction system, comprising: a water inlet unit and an anaerobic ammonia oxidation reaction device, the water inlet unit is provided with a detection device for detecting the ammonia nitrogen value and the nitrite nitrogen value of the inlet water; the anaerobic ammonia oxidation reaction device is provided with granular sludge containing ammonia oxidation bacteria and anaerobic ammonia oxidation bacteria and an aeration device; the detection device is in control connection with the aeration device, and the aeration device is controlled according to the detection result of the detection device.

[0009] In some embodiments, the anaerobic ammonia oxidation reaction device further comprises: an MBR membrane assembly, which is arranged near the outlet of the anaerobic ammonia oxidation reaction device.

[0010] In some embodiments, the aeration device comprises: a fan and a plurality of aeration pipes, the aeration pipes are arranged at the bottom of the anaerobic ammonia oxidation reaction device; the fan is in communication with the aeration pipes to deliver oxygen to the aeration pipes; the aeration pipes are provided with aeration pipe on-off valves, which are in control connection with the detection device to open and close according to the detection result of the detection device.

[0011] In some embodiments, the aeration device further comprises: a plurality of microporous aeration discs, which are uniformly arranged on the aeration pipes in the anaerobic ammonia oxidation reaction device.

[0012] In some embodiments, the anaerobic ammonia oxidation reaction system further comprises: a circulating tank, a circulating pipeline and a circulating water flow meter, the circulating tank is in communication with the outlet of the anaerobic ammonia oxidation reaction device, and the circulating tank is in communication with the water inlet unit through the circulating pipeline; the circulating water flow meter is arranged on the circulating pipeline to detect the circulating water flow in the circulating pipeline.

[0013] In some embodiments, the anaerobic ammonia oxidation reaction system further comprises: a plurality of perforated pipes and perforated pipe on-off valves arranged on the perforated pipes, the perforated pipes are arranged between the aeration pipes and the granular sludge and are connected with the aeration device, and the perforated pipes are provided with a plurality of uniformly distributed small holes; the perforated pipe on-off valves are in control connection with the detection device.

[0014] In some embodiments, the anaerobic ammonia oxidation reaction system further comprises: a backwashing pipe and a backwashing pipe on-off valve arranged on the backwashing pipe, the backwashing pipe is used for backwashing the MBR membrane assembly.

[0015] In some embodiments, the water inlet unit comprises: a water inlet tank and a water inlet pipe, the water inlet tank is in communication with the anaerobic ammonia oxidation reaction device through the water inlet pipe; the detection device comprises: an ammonia nitrogen detector and a nitrite nitrogen detector for detecting the ammonia nitrogen value and the nitrite nitrogen value of the wastewater in the water inlet tank, respectively.

[0016] In some embodiments, the anaerobic ammonia oxidation reaction system further comprises a dissolved oxygen detector for detecting the dissolved oxygen content in the anaerobic ammonia oxidation reaction device; and / or, the water inlet unit further comprises a water inlet flow pump arranged on the water inlet pipe; and / or, the water inlet unit further comprises a stirrer for stirring the wastewater in the water inlet tank.

[0017] In some embodiments, the water inlet unit further comprises a temperature control device for adjusting the temperature of the wastewater in the water inlet tank; and / or, the water inlet unit further comprises a pH measuring device for measuring the pH value of the water inlet and a pH adjusting device for adding a pH adjusting agent into the water inlet tank to adjust the pH value of the wastewater; and / or, the water inlet unit further comprises a nutrient salt adding device for adding nutrient elements for the growth of anaerobic ammonia oxidation bacteria into the water inlet tank.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1、 the utility model discloses through setting up detection device real -time detection ammonia nitrogen value and nitrite nitrogen value in wastewater water inlet, and based on the detection result, the intelligent control aeration process in reaction device can flexibly respond to the fluctuation and change of wastewater quality, creates a constant and suitable growth environment for anaerobic ammonia oxidation bacteria, such design not only greatly promotes the stability of the treatment process, maximizes the efficiency and quality of wastewater treatment greatly,

[0020] 2、 the utility model discloses setting up MRB membrane assembly in anaerobic ammonia oxidation reaction device, and the main function of this MRB membrane assembly is effectively intercepting the particle sludge carried in effluent, and the loss of particle sludge in the treatment process is greatly reduced, and this design not only improves the utilization rate of sludge, but also ensures the stability and processing efficiency of the system. Meanwhile, in order to maintain the long -term efficient operation of the membrane assembly, the backwash pipe that can regularly clean the membrane assembly is equipped, restores and keeps the excellent interception function of the membrane assembly, thereby ensuring that the whole anaerobic ammonia oxidation reaction device is in the best working state continuously,

[0021] 3、 the anaerobic ammonia oxidation reaction system is configured with a circulating pipeline, and part of effluent of the reaction device is drained to the water inlet tank and is fully mixed with the wastewater to be treated, and the concentration of toxic substances and pollutants in the water inlet is effectively diluted, thereby avoiding the damage of the activity of ammonia oxidation bacteria and anaerobic ammonia oxidation bacteria due to the impact of toxic substances, and ensuring the stability of the microbial population and the efficient operation of the treatment system,

[0022] 4, The water inlet unit of the utility model is also equipped with equipment for accurately controlling the pH value and temperature and other parameters of wastewater inlet water, automatically makes corresponding adjustment according to the parameter change of water quality, is simple and efficient in operation process, reduces the burden of manual operation, reduces maintenance cost, and realizes efficient operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further illustrated below in combination with the drawings and examples.

[0024] Figure 1 The utility model provides anaerobic ammonia oxidation reaction system's structural schematic diagram for the utility model provides the structural schematic diagram of aeration device.

[0025] Figure 2 The utility model provides anaerobic ammonia oxidation reaction system's structural schematic diagram for the utility model provides the structural schematic diagram of aeration device.

[0026] The meanings of the signs in the drawings are as follows:

[0027] 1-wastewater inlet pipe;101-wastewater inlet flowmeter;

[0028] 2-inlet tank;201-mixer;202-steam pipeline;203-steam ejector;204-alkali adding device;205-nutrient salt adding device;206-pH measurement pipeline;207-pH / temperature detector;

[0029] 3-inlet pipe;301-inlet flow pump;

[0030] 4-anaerobic ammonia oxidation reaction device;401-particle sludge;402-MBR membrane assembly;403-outlet tank;404-outlet pipe;405-dissolved oxygen detector;

[0031] 5-fan;6-aeration pipe;601-aeration pipe on-off valve;602-micro-porous aeration disc;

[0032] 7-perforated pipe;701-perforated pipe on-off valve;

[0033] 8-backwash pipe;801-backwash pipe on-off valve;

[0034] 9-circulation tank;901-circulation pipeline;902-circulation pump;903-circulation water flowmeter;

[0035] 10-ammonia nitrogen detector;11-nitrite nitrogen detector. DETAILED DESCRIPTION

[0036] The utility model is further explained in detail below in combination with the description of the drawings and specific embodiments, but the following description including the embodiments is only used for the ordinary skilled in the art of the utility model to understand the principle and essence of the utility model more clearly, and does not mean to limit the utility model in any form.

[0037] Embodiment 1

[0038] As Figure 1 The utility model provides an anaerobic ammonia oxidation reaction system, comprising: water inlet unit and anaerobic ammonia oxidation reaction device 4, wherein the water inlet unit is equipped with detection device, is used for detecting the ammonia nitrogen value and nitrite nitrogen value of water inlet.

[0039] Anaerobic ammonia oxidation reaction device 4 is equipped with granular sludge 401 containing ammonia oxidation bacteria and anaerobic ammonia oxidation bacteria and aeration device, and the detection device is control connected with the aeration device, and the aeration device is controlled according to the detection result of the detection device to open and close and the control of aeration amount, and then the process of aeration to anaerobic ammonia oxidation reaction device 4 is controlled.

[0040] In some embodiments, the water inlet unit includes a water inlet tank 2 and a water inlet pipe 3, and the water inlet tank 2 is communicated with the water inlet at the top of the anaerobic ammonia oxidation reaction device 4 through the water inlet pipe 3 to send the wastewater in the water inlet tank 2 into the anaerobic ammonia oxidation reaction device 4 for treatment.

[0041] The above-mentioned detection device includes ammonia nitrogen detector 10 and nitrite nitrogen detector 11, which is used for detecting the ammonia nitrogen value and nitrite nitrogen value of the wastewater in the water inlet tank 2 respectively, and the aeration process can be controlled according to the ammonia nitrogen value, the nitrite nitrogen value and the ratio of the two of the wastewater.

[0042] In some embodiments, the above-mentioned aeration device includes: a fan 5 and a plurality of aeration pipes 6, and the aeration pipes 6 are arranged at the bottom of the anaerobic ammonia oxidation reaction device 4, and the fan 5 is communicated with the aeration pipes 6 to deliver oxygen to the aeration pipes 6. The fan 5 is preferably a blower 5.

[0043] The aeration pipe 6 is provided with an aeration pipe switch valve 601, and the aeration pipe switch valve 601 is control connected with the detection device, and the aeration pipe switch valve 601 is controlled to open and close according to the detection result of the detection device, that is, the ammonia nitrogen value, the nitrite nitrogen value and the ratio of the two of the wastewater, and then the aeration process is controlled.

[0044] Preferably, as Figure 2 The aeration device further includes a plurality of microporous aeration discs 602, and the microporous aeration discs 602 are uniformly arranged on the aeration pipes 6 in the anaerobic ammonia oxidation reaction device 4. A large number of small bubbles can be generated through the small pore diameter on the microporous aeration disc 602, and these bubbles have a larger specific surface area in water, thereby improving the efficiency of oxygen transfer from the bubbles to the water.

[0045] Further, the anaerobic ammonia oxidation reaction system further comprises: a plurality of perforated pipes 7 and a perforated pipe on-off valve 701 arranged on the perforated pipes 7, the perforated pipes 7 being arranged between the aeration pipes 6 and the granular sludge 401 and being connected with the aeration device, and a plurality of uniformly distributed small holes being arranged on the perforated pipes 7, the small holes being directed towards the granular sludge 401.

[0046] The perforated pipes 7 are connected with the fan 5, the fan 5 provides oxygen for the perforated pipes 7, and the oxygen input by the aeration pipes 6 provides power for the mixing of the granular sludge 401 and the wastewater, the perforated pipes 7 are arranged at intervals with the aeration pipes 6, so as to ensure that the air stirring and aeration are uniform and the situation that the mixing effect of the sludge in some areas is poor does not occur.

[0047] The detection device is in control connection with the perforated pipe on-off valve 701, and the opening and closing of the perforated pipe on-off valve 701 is controlled according to the detection result.

[0048] In some embodiments, the anaerobic ammonia oxidation reaction system further comprises: a circulating tank 9, a circulating pipeline 901 and a circulating pump 902, and a circulating water flow meter 903, the outlet of the anaerobic ammonia oxidation reaction device 4 is in communication with the inlet of the circulating tank 9, the outlet at the top of the circulating tank 9 is used for discharging the purified water meeting the standard, one outlet of the circulating tank 9 is in communication with the water inlet tank 2 of the water inlet unit through the circulating pipeline 901, and the circulating water is mixed with the wastewater in the circulating tank 9, so that the water quality of the inlet water is more uniform, the concentration of toxic substances and pollutants in the inlet water can be diluted, a suitable reaction environment is provided for the anaerobic ammonia oxidation bacteria AnAOB, and the impact of water quality fluctuation on the strains is avoided to prevent a large number of strains from being killed.

[0049] The circulating pump 902 and the circulating water flow meter 903 are arranged on the circulating pipeline 901, the circulating pump 902 provides conveying power for the circulating water, and the circulating water flow meter 903 is used for detecting the circulating water flow in the circulating pipeline 901. The circulating pump 902 is a variable frequency motor, the circulating pump 902 is interlocked with the circulating water flow meter 903, and the frequency of the circulating pump 902 is automatically adjusted to achieve the required circulating flow.

[0050] In some embodiments, the anaerobic ammonia oxidation reaction device 4 further comprises: an MBR membrane assembly 402, the MBR membrane assembly 402 being arranged near the water outlet of the anaerobic ammonia oxidation reaction device 4, the MBR membrane assembly 402 being capable of effectively retaining the granular sludge 401 in the water outlet on one side of the membrane through the microporous structure thereof, allowing clear water molecules to pass through, preventing the granular sludge 401 from flowing out of the system, and ensuring the stable operation of the biological reactor.

[0051] The inside of the anaerobic ammonia oxidation reaction device 4 comprises, from bottom to top, an aeration pipe 6, a perforated pipe 7, a granular sludge 401 containing ammonia oxidation bacteria and anaerobic ammonia oxidation bacteria, an MBR membrane assembly 402, and a water outlet tank 403.

[0052] Further, the anaerobic ammonia oxidation reaction system further comprises a backwashing pipe 8 and a backwashing pipe switch valve 801 arranged on the backwashing pipe 8, and the backwashing pipe 8 is used for backwashing the MBR membrane assembly 402, so that the membrane can be prevented from being blocked and unable to be used, and the service life of the membrane is prolonged.

[0053] The backwashing pipe 8 is preferably connected with the fan 5, and the granular sludge 401 intercepted by the MBR membrane assembly 402 is washed by using oxygen, and the backwashing pipe switch valve 801 is connected with the detection device in control.

[0054] Further, the anaerobic ammonia oxidation reaction system further comprises a dissolved oxygen detector 405 for detecting the content of dissolved oxygen in the anaerobic ammonia oxidation reaction device 4, and the dissolved oxygen detector 405 is interlocked with the air blower 5, so that the air blower 5 is adjusted in frequency to provide limited oxygen for the ammonia oxidation bacteria AOB, and the value of dissolved oxygen DO is determined according to the water quality on site.

[0055] In some embodiments, the water inlet unit described above further comprises a water inlet flow pump 301 arranged on the water inlet pipe 3, and the water inlet flow pump 301 can provide power for water inlet.

[0056] Further, the water inlet unit further comprises a wastewater inlet pipe 31 for conveying wastewater to the water inlet tank 2, and a wastewater inlet flow meter 101 is arranged on the wastewater inlet pipe 31 and used for monitoring and recording the flow of wastewater inlet.

[0057] Further, the water inlet unit described above further comprises a stirrer 201 for stirring the wastewater and the circulating water in the water inlet tank 2 so as to be uniformly mixed.

[0058] Further, the water inlet unit described above further comprises a temperature control device and a temperature detection device, the temperature control device is used for adjusting the temperature of the wastewater in the water inlet tank 2, and the temperature detection device is used for detecting the temperature of the wastewater in the water inlet tank 2, and a thermometer can be selected.

[0059] Preferably, the utility model discloses a steam pipeline 202 and a steam jet 203 for heating wastewater, such as Figure 1As shown, the steam ejector 203 is arranged at the bottom of the water inlet tank 2 and communicates with the steam pipeline 202, and the steam delivered by the steam pipeline 202 is ejected by the steam ejector 203 to heat the wastewater, so as to ensure that the water temperature is above 35℃. It should be noted that the wastewater heating mode is not limited to the above-mentioned steam mode, and the wastewater can also be directly heated by a heater, and the temperature control of the wastewater is not limited to heating, and a cooler can also be arranged to cool the high-temperature wastewater.

[0060] Further, the above-mentioned water inlet unit further comprises a pH measuring device and a pH adjusting device, the pH measuring device is used for measuring the pH value of the water inlet, and the pH adjusting device is used for adding a pH adjusting agent into the water inlet tank 2 to adjust the pH value of the wastewater.

[0061] Preferably, the above-mentioned pH adjusting device is an alkali adding device 204, which can add an alkaline reagent into the water inlet tank 2 to adjust the pH value of the wastewater to 6.5-8.0.

[0062] More preferably, the above-mentioned pH measuring device is a pH measuring pipeline 206 and a pH / temperature detector 207, the pH measuring pipeline 206 communicates with the water inlet tank 2, and the pH / temperature detector 207 is arranged on the pH measuring pipeline 206 to detect the temperature of the wastewater in the water inlet tank 2. It should be noted that the pH / temperature detector 207 can measure the temperature in addition to the pH value, and therefore, the pH value and the wastewater temperature value can be directly measured by the pH / temperature detector 207. The alkali adding device 204 is interlocked with the pH / temperature detector 207 to stably control the pH value of the wastewater in the water inlet tank 2 to be within 6.5-8.0.

[0063] Further, the water inlet unit further comprises a nutrient salt adding device 205, which is used for adding nutrient elements for the growth of anaerobic ammonia oxidation bacteria AnAOB to ensure the activity of the anaerobic ammonia oxidation bacteria AnAOB.

[0064] In summary, the operation process of the anaerobic ammonia oxidation reaction system is as follows:

[0065] The wastewater inlet pipeline 31 delivers the wastewater to be treated into the water inlet tank 2, the alkali adding system adds an alkaline reagent to adjust the pH value of the wastewater to 6.5-8.0, the nutrient salt adding device 205 adds trace nutrient elements to the wastewater to ensure the activity of the anaerobic ammonia oxidation bacteria AnAOB, the steam pipeline 202 and the steam ejector 203 deliver low-pressure steam to heat the wastewater, so as to ensure that the water temperature is above 35℃, and the wastewater with the parameters such as temperature and pH value meeting the standards is pumped into the anaerobic ammonia oxidation reaction device 4 for treatment through the water inlet pipeline 3.

[0066] After the wastewater enters the anaerobic ammonia oxidation reaction device 4, the aeration pipe 6 in the anaerobic ammonia oxidation reaction device 4 provides limited oxygen for the ammonia oxidation bacteria AOB, 50% of NH4 +- N is converted into nitrite nitrogen NO2-N by ammonia oxidizing bacteria AOB under the condition of limited oxygen supply, nitrite nitrogen NO2-N and NH4 + - N is converted into nitrogen gas, a small amount of nitrate nitrogen and water by anaerobic ammonia oxidizing bacteria AnAOB.

[0067] In the above process, the perforated pipe 7 blows air to provide mixed power for ammonia oxidizing bacteria AOB and anaerobic ammonia oxidizing bacteria AnAOB, and the backwashing pipe 8 periodically backwashes the MBR membrane to prevent the membrane from being blocked by bacteria and losing the filtering function.

[0068] Example 2

[0069] On the basis of Example 1, the present embodiment combines the above-mentioned anaerobic ammonia oxidation reaction system to illustrate the control process between the detection device and the aeration device.

[0070] (1) When the measured nitrite nitrogen value is less than 5 mg / L, and the sum of the ammonia nitrogen value and the nitrite nitrogen value is greater than 100 and less than 250 mg / L, then the aeration pipe switch valve 601 is opened to provide limited oxygen for ammonia oxidizing bacteria AOB, 50% of NH4 + - N is converted into NO2-N, nitrite nitrogen NO2-N and the remaining NH4 + - N is converted into nitrogen gas, a small amount of nitrate nitrogen and water by anaerobic ammonia oxidizing bacteria AnAOB.

[0071] (2) When the measured nitrite nitrogen value is less than 5 mg / L, and the sum of the ammonia nitrogen value and the nitrite nitrogen value is greater than 50 and less than 100 mg / L, then the aeration pipe switch valve 601 and the perforated pipe switch valve 701 are opened at the same time to provide a small amount of oxygen for ammonia oxidizing bacteria AOB, 50% of NH4 + - N is converted into NO2-N, nitrite nitrogen NO2-N and NH4 + - N is converted into nitrogen gas, a small amount of nitrate nitrogen and water by anaerobic ammonia oxidizing bacteria AnAOB. The perforated pipe 7 in this process can provide a certain amount of mixing power to ensure that the granular sludge 401 and the wastewater can be uniformly mixed.

[0072] (3) When the ratio of the ammonia nitrogen value to the nitrite nitrogen value is about 1, and the sum of the ammonia nitrogen value and the nitrite nitrogen value is less than 250 mg / L, then only the perforated pipe switch valve 701 is opened, and the aeration pipe switch valve 601 is closed, NO2-N and NH4 + - N is converted into nitrogen gas, a small amount of nitrate nitrogen and water by anaerobic ammonia oxidizing bacteria AnAOB.

[0073] The control process logic is stored in the PLC programmable controller, and the control program records the running time, and the backwashing pipe switch valve 801 is automatically opened every certain time interval to flush the MBR membrane, so that the particle sludge 401 adhered to the membrane is flushed down, and the filtering capacity of the MBR membrane is ensured.

[0074] It should be noted that the setting of the ammonia nitrogen value and the nitrite nitrogen value in the embodiment is only a reference standard, and in actual operation, these values will be determined and adjusted according to the actual operation condition of the on-site system.

[0075] The technical scope of the utility model is not limited to the content in the description, and must be determined according to the scope of claims.

Claims

1. An anaerobic ammonia oxidation reaction system, characterized in that, includes: an influent unit and an anaerobic ammonia oxidation reaction device, the influent unit is provided with a detection device for detecting the ammonia nitrogen value and the nitrite nitrogen value of the influent water; the anaerobic ammonia oxidation reaction device is provided with granular sludge containing ammonia oxidizing bacteria and anaerobic ammonia oxidation bacteria and an aeration device; the detection device is in control connection with the aeration device, and the aeration device is controlled according to the detection result of the detection device.

2. The anaerobic ammonia oxidation reaction system according to claim 1, characterized in that, the anaerobic ammonia oxidation reaction device further comprises an MBR membrane assembly, the MBR membrane assembly is arranged near the effluent port of the anaerobic ammonia oxidation reaction device.

3. The anaerobic ammonia oxidation reaction system according to claim 1, characterized in that, the aeration device comprises a fan and a plurality of aeration pipes, and the aeration pipes are arranged at the bottom of the anaerobic ammonia oxidation reaction device; the fan is in communication with the aeration pipes to deliver oxygen to the aeration pipes; an aeration pipe on-off valve is arranged on the aeration pipe, and the aeration pipe on-off valve is in control connection with the detection device to be opened and closed according to the detection result of the detection device.

4. The anaerobic ammonia oxidation reaction system according to claim 3, characterized in that, the aeration device further comprises a plurality of microporous aeration discs, and the microporous aeration discs are uniformly arranged on the aeration pipes in the anaerobic ammonia oxidation reaction device.

5. The anaerobic ammonia oxidation reaction system according to claim 1, characterized in that, further comprising: a circulating tank, a circulating pipeline and a circulating water flow meter, the circulating tank is in communication with the outlet of the anaerobic ammonia oxidation reaction device, and the circulating tank is in communication with the influent unit through the circulating pipeline; the circulating water flow meter is arranged on the circulating pipeline to detect the circulating water flow in the circulating pipeline.

6. The anaerobic ammonia oxidation reaction system according to claim 3, characterized in that, further comprising a plurality of perforated pipes and a perforated pipe on-off valve arranged on the perforated pipes, the perforated pipes are arranged between the aeration pipes and the granular sludge and are connected with the aeration device, and a plurality of uniformly distributed small holes are arranged on the perforated pipes; the perforated pipe on-off valve is in control connection with the detection device.

7. The anaerobic ammonia oxidation reaction system according to claim 2, characterized in that, further comprising a backwashing pipe and a backwashing pipe on-off valve arranged on the backwashing pipe, the backwashing pipe is used for backwashing the MBR membrane assembly.

8. The anaerobic ammonia oxidation reaction system according to any one of claims 2-7, characterized in that, the influent unit comprises an influent tank and an influent pipe, and the influent tank is in communication with the anaerobic ammonia oxidation reaction device through the influent pipe; the detection device comprises an ammonia nitrogen detector and a nitrite nitrogen detector for detecting the ammonia nitrogen value and the nitrite nitrogen value of the wastewater in the influent tank, respectively.

9. The anaerobic ammonia oxidation reaction system according to claim 8, characterized in that, further comprising a dissolved oxygen detector for detecting the dissolved oxygen content in the anaerobic ammonia oxidation reaction device; and / or, The water inlet unit further comprises: a water inlet flow pump arranged on the water inlet pipe; and / or, The water inlet unit further comprises: a stirrer for stirring the wastewater in the water inlet tank.

10. The ANAMMOX reaction system according to claim 8, characterized in that, The water inlet unit further comprises: a temperature control device for adjusting the temperature of the wastewater in the water inlet tank; and / or, The water inlet unit further comprises: a pH measuring device for measuring the pH value of the water inlet, and a pH adjusting device for adding a pH adjusting agent into the water inlet tank to adjust the pH value of the wastewater; and / or, The water inlet unit further comprises: a nutrient salt adding device for adding nutrient elements for the growth of ANAMMOX bacteria into the water inlet tank.

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