An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater and its application

Abstract

The present invention relates to the technical field of high ammonia nitrogen wastewater treatment, and particularly to an equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater and its application. The device of the invention comprises a control room, a microbial inoculation area, a microbial interception area, a nutrition area and a growth area; the invention has a compact structure, convenient operation and high automation degree. The device can automatically adjust the operation parameters according to the changes of water temperature, pH value, dissolved oxygen concentration and microbial concentration, provide the most suitable growth environment for the high ammonia nitrogen resistant bacterial agent, continuously provide highly active microorganisms for the high ammonia nitrogen wastewater treatment process, promote the treatment efficiency of high ammonia nitrogen wastewater and maintain the stable operation of the high ammonia nitrogen wastewater treatment process.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to an equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater and its application. Background Art

[0002] Ammonia nitrogen in water bodies will be converted into nitrate nitrogen and nitrite nitrogen. Excessive nitrogen in water is one of the important reasons for water eutrophication, massive death of aquatic animals and plants, and black and odorous water bodies.

[0003] At present, although there is no clear definition of how high the ammonia nitrogen concentration should be for high ammonia nitrogen wastewater, generally, wastewater with an ammonia nitrogen concentration exceeding 200 mg / L is called high ammonia nitrogen wastewater. High ammonia nitrogen wastewater usually generates from manufacturing industries, livestock and poultry breeding industries, landfills and other places, and is difficult to treat with high costs. The main treatment technologies for high ammonia nitrogen wastewater are physical and chemical methods and biological methods. However, the physical and chemical methods require continuous addition of chemicals, usually resulting in secondary pollution or high costs. Although the biological method has the advantage of low operating costs, traditional microorganisms are also limited by high ammonia nitrogen, resulting in poor treatment effects.

[0004] High ammonia nitrogen resistant bacterial agents with heterotrophic nitrification-aerobic denitrification ability can achieve synchronous removal of ammonia nitrogen, nitrate nitrogen and nitrite nitrogen in the same aerobic environment. Moreover, the reported ammonia nitrogen tolerance of high ammonia nitrogen bacterial agents is even higher than 1000 mg / L, which is a new idea for treating high ammonia nitrogen wastewater. However, there are many high ammonia nitrogen bacterial agents in nature. The main reason for their lack of wide application is serious strain degradation and rapid loss in the sewage treatment process. Therefore, a technology that can continuously increase the high ammonia nitrogen bacterial agents in the system, maintain the function and quantity of high ammonia nitrogen bacterial agents, and achieve efficient biological treatment of high ammonia nitrogen wastewater is needed. For this reason, we have developed an equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater and its application of the present invention. Summary of the Invention

[0005] The purpose of the present invention is to provide an equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater and its application, which is used to solve the technical problem that the existing technology cannot continuously increase the high ammonia nitrogen bacterial agents in the system, resulting in serious strain degradation and rapid loss in the sewage treatment process.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater, the equipment includes a control room, a microbial inoculation area, a microbial interception area, a nutrient area and a growth area;

[0008] The control room is provided with a controller, a variable frequency air pump and a variable frequency water pump;

[0009] A number of microporous aerators are installed at the bottom positions inside the microbial inoculation area, nutrient area, and growth area. The microporous aerators are connected to the output end of the variable-frequency air pump through an air inlet pipe, and the input end of the variable-frequency air pump is connected to the outside of the equipment. The variable-frequency air pump is used to introduce gas into each microporous aerator;

[0010] The input end of the variable-frequency water pump is connected to a water inlet pipe. The water inlet of the water inlet pipe extends outside the equipment, and the output end of the variable-frequency water pump is connected to a water inlet pipe, through which water is introduced into the microbial inoculation area;

[0011] The microbial inoculation area is internally provided with inoculation packing and a variable-frequency heater;

[0012] An inoculation area overflow trough and an interception area water distribution trough are arranged at one side position at the top of the microbial inoculation area. When the water body exceeds the height of one side wall of the microbial inoculation area, it flows into the microbial interception area through the inoculation area overflow trough and the interception area water distribution trough;

[0013] The microbial interception column includes an interception material and a support column;

[0014] An interception area overflow trough is arranged at one side position at the top of the microbial interception area. When the water body exceeds the height of one side wall of the microbial interception area, it flows into the nutrient area through the interception area overflow trough;

[0015] A porous basket is arranged in the nutrient area;

[0016] When the water body exceeds the height of the other side wall of the nutrient area, the water flows into the growth area; a water distribution trough is arranged at one side of the top of the growth area, and the water distribution trough is connected to a water outlet pipe; a microbial concentration monitor is also arranged at the upper end of the growth area; a multi-parameter water quality monitor is also arranged inside the growth area;

[0017] A variable-frequency reflux pump is also arranged at the bottom of the growth area. The input end of the variable-frequency reflux pump is connected to the inside of the growth area, the output end of the variable-frequency reflux pump is connected to a reflux pipe, and the water outlet of the reflux pipe is located inside the microbial inoculation area, for pumping the water body in the growth area back to the microbial inoculation area.

[0018] Furthermore, a check valve is also arranged on the air inlet pipe.

[0019] Furthermore, the inoculation packing is at least one of the following: elastic three-dimensional packing, combined packing, soft packing, and semi-soft packing;

[0020] The total volume of the inoculation packing accounts for 10%-30% of the total volume of the microbial inoculation area.

[0021] Furthermore, a V-shaped drainage trough is provided at the bottom of the microbial inoculation area, and a sewage discharge pipe is also connected to the lowest point of the V-shaped drainage trough;

[0022] The bottoms of the nutrition area and the growth area are also connected to the sewage discharge pipe, and the on-off of each is controlled by a different electromagnetic valve respectively.

[0023] Furthermore, a plurality of the support columns are fixed inside the microbial interception area, and a number of interception materials are installed on each support column.

[0024] Furthermore, the interception materials can be activated carbon fiber, sponge, polyethylene, polypropylene; the support columns are made of corrosion-resistant materials, including at least one of the following materials: stainless steel, carbon fiber, polypropylene, alloy; cylinders with a diameter of 1-5 mm.

[0025] Furthermore, at least one of the following components is placed inside the porous basket as a nutrient source: glucose, sodium acetate, polybutylene succinate, polylactic acid, polycaprolactone, polyvinyl alcohol, urea, sulfuric acid;

[0026] At least two basket supports are fixed to the bottom of the nutrition area, and a porous platform is fixedly installed at the top of the basket support, and the porous basket is placed on the porous platform.

[0027] Furthermore, a diversion plate is provided inside the nutrition area, and the diversion plate divides the nutrition area into two parts that are isolated at the upper end and connected at the lower end, and each of the two parts has at least one porous basket.

[0028] Furthermore, the multi-parameter water quality monitor at least includes a temperature sensor, a pH value sensor and a dissolved oxygen concentration sensor; the microbial concentration monitor characterizes the microbial concentration by the absorbance value measured at a wavelength of 600±20 nm and an optical path of 1 cm.

[0029] The application of the above equipment in the biological treatment of high ammonia nitrogen wastewater treatment technology is characterized in that the application is used for aerobic biological treatment.

[0030] The present invention has at least the following beneficial effects:

[0031] The device of the invention includes a control room, a microbial inoculation area, a microbial interception area, a nutrition area, and a growth area. It has a compact structure, convenient operation and high automation. The device can automatically adjust the operation parameters according to the changes in water temperature, pH value, dissolved oxygen concentration and microbial concentration, provide the most suitable growth environment for the high ammonia nitrogen resistant bacterial agent, continuously provide highly active microorganisms for the high ammonia nitrogen wastewater treatment process, promote the high ammonia nitrogen wastewater treatment efficiency, and maintain the stable operation of the high ammonia nitrogen wastewater treatment process. Description of the Drawings

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Front view of the device related to the present invention;

[0034] Figure 2 Top view of the device related to the present invention;

[0035] Figure 3 Side view of the nutrient area in the device related to the present invention;

[0036] Figure 4 Schematic diagram of the retention column in the device related to the present invention;

[0037] Figure 5 In Example 1, during the 30 days of the startup process of the device of the present invention, the daily average change diagram of the dissolved oxygen concentration, pH, temperature, and OD600 in the device;

[0038] Figure 6 In Example 2, installation position diagram of the present invention;

[0039] Figure 7 In Example 2, experimental effect of the device of the present invention for the MBBR process of high ammonia nitrogen wastewater treatment.

[0040] In the figure: 1, control room; 2, controller; 3, water inlet pipe; 4, microbial inoculation area; 5, inoculation filler; 6, microbial interception area; 7, nutrient area; 8, porous basket; 9, growth area; 10, microbial concentration monitor; 11, return pipe; 12, water distribution tank; 13, multi-parameter water quality monitor; 14, variable frequency return pump; 15, micro-pore aerator; 16, variable frequency heater; 17, basket support; 18, porous platform; 19, microbial retention column; 20, V-shaped drainage trough; 21, variable frequency air pump; 22, air inlet pipe; 23, check valve; 24, variable frequency water pump; 25, solenoid valve; 26, water outlet pipe; 27, sewage pipe; 28, retention area overflow trough; 29, retention area water distribution trough; 30, inoculation area overflow trough; 31, water inlet pipe; 32, guide plate; 33, retention material; 34, support column; 35, nutrient area overflow trough. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] Specifically, please refer to Figure 1-4 , the present invention discloses a device for enhancing aerobic denitrification of high ammonia nitrogen wastewater.

[0043] Refer to Figure 1 , the device of the present invention includes a control room 1, a microorganism inoculation area 4, a microorganism interception area 6, a nutrition area 7 and a growth area 9;

[0044] Refer to Figure 1 and Figure 2 , the control room 1 is provided with a controller (PLC, S7-1200, Siemens) 2, a variable frequency air pump 21 and a variable frequency water pump 24;

[0045] Specifically, the controller 2 (PLC, S7-1200, Siemens) selected is the S7-1200 controller of Siemens. S7-1200 is a series of PLC products of small and medium-sized controllers launched by Siemens (Siemens) company, mainly used for small automation controllers and low-cost applications. The S7-1200 series PLC has the following characteristics: 1. Compact design: small volume, simple and generous appearance, convenient for installation and use. 2. High performance: Compared with other S7 series PLCs, S7-1200 has excellent performance in terms of performance. 3. Simple and easy to use: Supports simulation function, provides a graphical and intuitive programming interface, easy to learn and use. 4. High reliability: Supports backup mechanism and automatic recovery function to ensure the high reliability of the system. 5. Flexible and scalable: Supports a variety of input / output configurations and function modules, and can configure a variety of function modules for rapid expansion. S7-1200 can be widely used in the field of small automation, such as machinery manufacturing, automation testing, packaging machinery, building materials and other fields. Due to its low cost, high performance and easy-to-use characteristics, S7-1200 has been widely used in applications.

[0046] The input end of the variable frequency water pump 24 is connected to the water inlet pipe 31, the water inlet of the water inlet pipe 31 extends outside the device, and the output end of the variable frequency water pump 24 is connected to the water inlet pipe 3, and the water body is introduced into the microorganism inoculation area 4 through the water inlet pipe 3.

[0047] Specifically, a number of microporous aerators 15 are installed at the bottom positions inside the microorganism inoculation area 4, the nutrition area 7 and the growth area 9. The microporous aerators 15 are connected to the output end of the variable frequency air pump 21 through the air inlet pipe 22. The input end of the variable frequency air pump 21 is connected to the outside of the device. The gas is introduced into the microporous aerators 15 through the variable frequency air pump 21, and then the air is introduced into each area in the form of tiny bubbles through the microporous aerators 15 to oxygenate the water bodies inside the microorganism inoculation area 4, the nutrition area 7 and the growth area 9.

[0048] A check valve 23 is also provided on the intake pipe 22.

[0049] An inoculation filler 5 and a variable-frequency heater 16 are provided inside the microorganism inoculation area 4.

[0050] In a specific embodiment, the inoculation filler 5 can be an elastic three-dimensional filler, a combined filler, a soft filler, or a semi-soft filler. Moreover, the total volume of the inoculation filler 5 accounts for 10%-30% of the total volume of the microorganism inoculation area 4.

[0051] A V-shaped drainage trough 20 is provided at the bottom of the microorganism inoculation area 4, and a sewage discharge pipe 27 is connected to the lowest point of the V-shaped drainage trough 20 and is controlled by a solenoid valve 25 for opening and closing.

[0052] In addition, the bottoms of the nutrient area 7 and the growth area 9 are also connected to the sewage discharge pipe 27 and are respectively controlled by different solenoid valves 25 for opening and closing.

[0053] An inoculation area overflow trough 30 and an interception area water distribution trough 29 are provided at one side position at the top of the microorganism inoculation area 4. When the water body exceeds the height of one side wall of the microorganism inoculation area 4, it flows into the interception area water distribution trough 29 through the inoculation area overflow trough 30 and then flows into the microorganism interception area 6 through the interception area water distribution trough 29.

[0054] The microorganism interception area 6 is provided with a plurality of microorganism interception columns 19.

[0055] Refer to Figure 3 , the microorganism interception column 19 includes an interception material 33 and a support column 34. A plurality of the support columns 34 are fixed inside the microorganism interception area 6, and a plurality of interception materials 33 are installed on each support column 34.

[0056] In a specific embodiment, the interception material 33 can be activated carbon fiber, sponge, polyethylene, or polypropylene.

[0057] The support column 34 is made of a corrosion-resistant material and includes at least one of the following materials: stainless steel, carbon fiber, polypropylene, alloy; a cylinder with a diameter of 1-5 mm.

[0058] An interception area overflow trough 28 is provided at one side position at the top of the microorganism interception area 6. When the water body exceeds the height of one side wall of the microorganism interception area 6, it flows into the nutrient area 7 through the interception area overflow trough 28.

[0059] Refer to Figure 4 , a porous basket 8 is provided inside the nutrient area 7, and at least one of the following components is placed inside the porous basket 8 as a nutrient source: glucose, sodium acetate, polybutylene succinate, polylactic acid, polycaprolactone, polyvinyl alcohol, urea, ammonium sulfate.

[0060] Specifically, in one embodiment, at least two basket supports 17 are fixed to the bottom of the nutrient area 7, and a porous platform 18 is fixedly installed at the top of the basket support 17, and the porous basket 8 is placed on the porous platform 18.

[0061] Specifically, in one embodiment, a flow guide plate 32 is arranged inside the nutrient area 7, and the flow guide plate 32 divides the nutrient area 7 into two parts that are isolated at the upper end and connected at the lower end, and each of the two parts has at least one porous basket 8.

[0062] When the water body exceeds the height of the other side wall of the nutrient area 7, the water flow flows into the growth area 9;

[0063] A water distribution tank 12 is arranged on one side of the top of the growth area 9, and the water distribution tank 12 is connected with a water outlet pipe 26 for discharging the water body.

[0064] A microbial concentration monitor 10 is further arranged at the upper end of the growth area 9, and the microbial concentration monitor 10 characterizes the microbial concentration by the absorbance value measured at a wavelength of 600±20nm and a light path of 1 cm.

[0065] A multi-parameter water quality monitor 13 is further arranged inside the growth area 9, and the multi-parameter water quality monitor 13 at least includes a temperature sensor, a pH value sensor and a dissolved oxygen concentration sensor.

[0066] A variable frequency reflux pump 14 is further arranged at the bottom of the growth area 9. The input end of the variable frequency reflux pump 14 is connected with the inside of the growth area 9. The output end of the variable frequency reflux pump 14 is connected with a reflux pipe 11, and the water outlet of the reflux pipe 11 is located inside the microbial inoculation area 4 for pumping the water body in the growth area 9 back to the microbial inoculation area 4.

[0067] In the above, the controller 2 is connected to the variable frequency air pump 21, the variable frequency water pump 24, the variable frequency heater 16, the microbial concentration monitor 10, the multi-parameter water quality monitor 13, the variable frequency reflux pump 14 and the electromagnetic valve 25.

[0068] It should be noted that the microorganisms inoculated in the microbial inoculation area 4 are high ammonia nitrogen resistant bacterial agents. Specifically, the high ammonia nitrogen resistant bacterial agents are heterotrophic nitrification-aerobic denitrification composite bacterial agents that can remove high ammonia nitrogen at low temperature, or heterotrophic nitrification-aerobic denitrification composite bacterial agents that are salt-tolerant and high ammonia nitrogen resistant, or ammonia nitrogen resistant composite bacterial agents.

[0069] The above equipment is used in the biological treatment technology of high ammonia nitrogen wastewater treatment technology, and is mainly used for aerobic biological treatment process:

[0070] The above equipment is mainly used for the treatment of wastewater with a suspended solid concentration <100 mg / L and an ammonia nitrogen concentration ≥200 mg / L in the influent.

[0071] The described equipment is controlled by a controller 2 to pump water into the microbial inoculation area 4 through a variable-frequency water pump 24. Then, the water flows through the inoculation area overflow tank 30 into the intercept area water distribution tank 29, and the water flow is evenly distributed and flows into the microbial interception area 6. Then, it flows out from the bottom of the microbial interception area 6, enters the left side of the nutrient area 7 after a baffle, then enters the right side of the nutrient area 7 from the lower end of the nutrient area baffle 32, and then enters the growth area 9 through the nutrient area overflow tank 35, and enters the water distribution tank 12 by means of overflow, and finally is discharged through the water outlet pipe 26.

[0072] The controller 2 uses the data of the multi-parameter water quality monitor 13 and the microbial concentration monitor 10 as feedback to change the operating frequencies of the variable-frequency water pump 24, the variable-frequency air pump 21, the variable-frequency heater 16, and the variable-frequency reflux pump 14, and always maintains the internal body temperature of the equipment controlled at 15 - 40 °C, the pH control range is 6 - 10, and the dissolved oxygen concentration is controlled at 2.0 - 8.0 mg / L.

[0073] The described equipment for enhancing aerobic denitrification of high ammonia-nitrogen wastewater is applicable to the field of high ammonia-nitrogen wastewater treatment and is used to continuously enhance the removal effect of microorganisms on ammonia-nitrogen under aerobic conditions. Example

[0074] Equipment startup

[0075] The intercepting material is selected as activated carbon fiber material, and the support column is a carbon fiber rope with a diameter of 2 mm. The inoculation filler is selected as activated carbon soft filler. The nutrient source is a spherical solid with a diameter of 1 - 2 cm, which is made by mixing polycaprolactone, sodium acetate, and ammonium sulfate in a mass ratio of 2:3:1 and dissolving them at high temperature. The high ammonia-nitrogen resistant bacterial agent is based on the bacterial agent prepared in the patent No. 201911106185.3, and this bacterial agent is made of Acinetobacter calcoaceticus-TNJ-1, Pseudomonas stutzeri, Halomonas nitrativorans, and Cupriavidus sp. SWA1.

[0076] Connect the device of the present invention. After the equipment is filled with water, close the water inlet, add the inoculation filler according to 10% of the volume ratio of the inoculation area, set 2 rows of intercepting materials, and each row has 10 - 15 support columns; set the temperature to 24 - 25 °C, control the dissolved oxygen concentration to be 3.0 - 6.0 mg / L, the initial pH to be 6.5 - 8.5, and control the microbial concentration OD600 to be 0.3 - 1.0. Add the high ammonia-nitrogen resistant bacterial agent with an OD600 value of 1.2 according to 10% of the volume of the equipment inoculation area; fill the porous basket with the nutrient source.

[0077] Input the operating conditions into the controller. When the device is started for the first time, it is necessary to form a biofilm on the inoculated packing, that is, start the variable-frequency water pump once every 3 days, and the water inflow each time is 50% of the total installed water volume of the device, and run continuously for 15 days; then start the variable-frequency water pump, and the water inflow is 50% of the normal operating flow, and run continuously for 7 - 15 days. When the operating data is observed to be stable, the startup of the device ends. Then input the normal operating conditions into the controller, and the device can operate formally. As Figure 5 shown, within 0 - 20 days, the data fluctuates greatly. After 20 days, the data gradually stabilizes, and pH, dissolved oxygen concentration DO, microorganism concentration OD600, and temperature are maintained within the preset range. Example

[0078] An MBBR high ammonia nitrogen wastewater treatment process, using a biofilm process, there is no activated sludge in the system. The ammonia nitrogen concentration in the process influent is 400 - 600 mg / L, the total nitrogen concentration is 600 - 800 mg / L, the COD concentration is 4000 - 5000 mg / L, and the residence time in the MBBR pool is 3 days. Figure 7 The effluent water quality of the MBBR process from 0 - 20 days is shown in. When continuously monitoring the MBBR process on the 21st day, add a high ammonia nitrogen resistant bacterium agent with a patent number of 201911106185.3 to the MBBR pool. The added volume of the high ammonia nitrogen resistant bacterium agent is 10% of the volume of the MBBR pool, and the OD600 of the high ammonia nitrogen resistant bacterium agent is 1.2. Figure 7 The effluent water quality of the MBBR process after directly adding a high ammonia nitrogen resistant bacterium agent for strengthening from 21 - 40 days is shown in. Install the equipment of the present invention at the Figure 6 position shown. Figure 7 The effluent water quality of the MBBR process after the startup of the device of the present invention from 41 - 60 days is shown in. The parameters input into the controller of the device of the present invention are the control parameters in Example 1, and the variable-frequency water pump input into the device controls the residence time of the present invention to be 12 - 16 h.

[0079] As Figure 7 shown, within 0 - 20 days, the average ammonia nitrogen concentration in the process effluent is 124.9 mg / L, the average COD concentration is 1002.9 mg / L, and the average total nitrogen concentration is 249.4 mg / L. From 21 - 40 days, due to the addition of the high ammonia nitrogen resistant bacterium agent, the concentrations of ammonia nitrogen, total nitrogen, and COD in the process effluent all decreased, but the effect declined from 36 - 40 days. From 41 - 60 days, due to the startup of the device of the present invention, it can continuously provide a high ammonia nitrogen resistant bacterium agent for the MBBR pool, strengthening the removal effect of the MBBR pool on ammonia nitrogen, total nitrogen, and COD. Moreover, the average ammonia nitrogen concentration in the process effluent is 13.5 mg / L, the average total nitrogen concentration is 55.3 mg / L, the average COD concentration is 314.8 mg / L, and the removal effect has not occurred.

[0080] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater, characterized in that, The equipment includes a control room (1), a microbial inoculation area (4), a microbial interception area (6), a nutrient area (7), and a growth area (9); The control room (1) is provided with a controller (2), a variable-frequency air pump (21), and a variable-frequency water pump (24); A number of microporous aerators (15) are installed at the bottom inside the microbial inoculation area (4), the nutrient area (7), and the growth area (9). The microporous aerators (15) are connected to the output end of the variable-frequency air pump (21) through an air inlet pipe (22). The input end of the variable-frequency air pump (21) is connected to the outside of the equipment, and gas is introduced into each microporous aerator (15) through the variable-frequency air pump (21); The input end of the variable-frequency water pump (24) is connected to a water inlet pipe (31). The water inlet of the water inlet pipe (31) extends outside the equipment, and the output end of the variable-frequency water pump (24) is connected to a water inlet pipe (3), and water is introduced into the microbial inoculation area (4) through the water inlet pipe (3); The microbial inoculation area (4) is internally provided with an inoculation filler (5) and a variable-frequency heater (16); An inoculation area overflow tank (30) and an interception area water distribution tank (29) are arranged at one side of the top of the microbial inoculation area (4). When the water level exceeds the height of one side wall of the microbial inoculation area (4), it flows into the microbial interception area (6) through the inoculation area overflow tank (30) and the interception area water distribution tank (29); The microbial interception area (6) is provided with a plurality of microbial interception columns (19). The microbial interception columns (19) include an interception material (33) and a support column (34); An interception area overflow tank (28) is arranged at one side of the top of the microbial interception area (6). When the water level exceeds the height of one side wall of the microbial interception area (6), it flows into the nutrient area (7) through the interception area overflow tank (28); A porous basket (8) is arranged inside the nutrient area (7); When the water level exceeds the height of the other side wall of the nutrient area (7), the water flows into the growth area (9). A water distribution tank (12) is arranged at one side of the top of the growth area (9), and the water distribution tank (12) is connected to a water outlet pipe (26). A microbial concentration monitor (10) is also arranged at the upper end of the growth area (9). A multi-parameter water quality monitor (13) is also arranged inside the growth area (9); A variable-frequency return pump (14) is also arranged at the bottom of the growth area (9). The input end of the variable-frequency return pump (14) is connected to the inside of the growth area (9), and the output end of the variable-frequency return pump (14) is connected to a return pipe (11). The water outlet of the return pipe (11) is located inside the microbial inoculation area (4) for pumping the water in the growth area (9) back to the microbial inoculation area (4); At least one of the following components is placed inside the porous basket (8) as a nutrient source: glucose, sodium acetate, polybutylene succinate, polylactic acid, polycaprolactone, polyvinyl alcohol, urea, sulfuric acid; At least two basket supports (17) are fixedly installed at the bottom of the nutrient area (7), and a porous platform (18) is fixedly installed at the top of the basket support (17), and the porous basket (8) is placed on the porous platform (18).

2. The equipment for enhancing aerobic denitrification of high ammonia-nitrogen wastewater according to claim 1, characterized in that, A check valve (23) is further provided on the air inlet pipe (22).

3. The equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater according to claim 1, characterized in that, The inoculation filler (5) is at least one of the following: elastic three-dimensional filler, combined filler, soft filler, and semi-soft filler; The total volume of the inoculation filler (5) accounts for 10%-30% of the total volume of the microbial inoculation area (4).

4. An equipment for enhancing aerobic denitrification of high ammonia-nitrogen wastewater according to claim 1, characterized in that, A V-shaped drainage trough (20) is provided at the bottom of the microbial inoculation area (4), and a sewage discharge pipe (27) is further connected to the lowest point of the V-shaped drainage trough (20); The bottoms of the nutrient area (7) and the growth area (9) are also connected to the sewage discharge pipe (27), and the on-off control is respectively carried out through different solenoid valves (25).

5. An apparatus for enhancing aerobic denitrification of high ammonia nitrogen wastewater according to claim 1, characterized in that, A plurality of the support columns (34) are fixedly installed inside the microbial interception area (6), and a plurality of interception materials (33) are installed on each support column (34).

6. An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater according to claim 1, characterized in that, The interception material (33) is activated carbon fiber, sponge, polyethylene, polypropylene; the support column (34) is made of corrosion-resistant material, including at least one of the following materials: stainless steel, carbon fiber, polypropylene, alloy; a cylinder with a diameter of 1-5 mm.

7. An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater according to claim 1, characterized in that, A flow guide plate (32) is arranged inside the nutrient area (7), and the flow guide plate (32) divides the nutrient area (7) into two parts that are isolated at the upper end and communicated at the lower end, and each of the two parts has at least one porous basket (8).

8. An equipment for enhancing aerobic denitrification of high ammonia nitrogen wastewater according to claim 1, characterized in that, The multi-parameter water quality monitor (13) at least includes a temperature sensor, a pH value sensor, and a dissolved oxygen concentration sensor; the microbial concentration monitor (10) characterizes the microbial concentration by the absorbance value measured at a wavelength of 600±20 nm and a light path of 1 cm.

9. Use of the equipment according to any one of claims 1-8 in biological treatment in the high ammonia nitrogen wastewater treatment technology, characterized in that, The application is used for aerobic biological treatment.

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