An air purification device for livestock farms using bacteriophage atomization sterilization

Abstract

The utility model discloses a kind of livestock farm air purification device atomized by bacteriophage, including belonging to animal epidemic disease prevention and control and air treatment technical field.This device includes air inlet, prefilter, bacteriophage spray module, high efficiency filter, exhaust port and control system, wherein bacteriophage spray module is atomized by atomizing nozzle with bacteriophage solution, specificity cleavage pathogenic bacteria in air;Control system can be according to air quality parameter intelligent adjustment atomization frequency and filtration intensity, guarantee farm air sustained clean.This device has the advantages of high sterilization efficiency, safety and environmental protection, intelligent control, significantly reduce the respiratory disease risk of breeding animals, applicable to various scale farms.Experiment verification shows that this device can make pathogenic bacteria in air drop more than 95% within 8 hours, total concentration of air bacteria is reduced more than 90% after 7 days, bacteriophage maintains more than 90% activity within 14 days under the condition of 4 ℃.

Description

Technical Field

[0001] This utility model relates to the field of animal disease prevention and control and air purification technology, and in particular to an air purification device for livestock farms that utilizes bacteriophage atomization sterilization. Background Technology

[0002] In livestock farming, airborne pathogens (such as Escherichia coli, Salmonella, and Staphylococcus aureus) are a major cause of respiratory diseases in animals. Traditional air purification methods, such as ultraviolet irradiation or chemical spraying, while having some bactericidal effect, pose problems such as significant stress reactions in animals, drug residues, and health risks to personnel.

[0003] Bacteriophages are a type of natural virus that can specifically recognize and lyse bacteria. They are green, safe, and efficient, and their application in air purification has broad prospects. Utility Model Content

[0004] This invention provides an air purification device for livestock farms that utilizes bacteriophage atomization sterilization. By atomizing and spraying a specific bacteriophage solution into the air, it lyses airborne bacterial pathogens. Combined with a high-efficiency physical filtration system, it effectively purifies the breeding environment and reduces animal morbidity.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: An air purification device for livestock farms that utilizes bacteriophage atomization sterilization includes a shell, a pre-filter, a bacteriophage spray module, a high-efficiency filter, and a control system; The outer casing is provided with an air inlet and an exhaust outlet, and the pre-filter, the phage spray module, and the high-efficiency filter are arranged sequentially inside the outer casing from the air inlet to the exhaust outlet. The pre-filter is used to filter large particulate matter; The phage spray module is used to atomize the phage solution into the air for sterilization. The high-efficiency filter is used to capture residual pathogens, small particulate matter, and odorous gases in the air; The control system is located on the outer casing and is used to control the air intake and the atomization frequency of the phage solution.

[0006] Furthermore, the pre-filter includes a pre-filter frame and filter material disposed within the pre-filter frame; the filter material is a multi-layer mesh structure of polyester fiber or metal, and the filter material is capable of filtering airborne particles with a diameter greater than 10 μm, with a filtration efficiency of over 90%.

[0007] Furthermore, the phage spray module includes a phage solution storage tank and an atomizing nozzle. The phage solution storage tank stores phage solution, and the atomizing nozzle is connected to the phage solution storage tank via a liquid channel. The liquid channel is connected to an air pump via a pipeline.

[0008] Furthermore, the high-efficiency filter includes a filter frame and multi-stage filter material disposed within the filter frame; The multi-stage filtration material includes a HEPA filter and an activated carbon layer. The HEPA filter is located within the filter frame on the side closer to the phage spray module, and the activated carbon layer is located within the filter frame on the side farther away from the phage spray module.

[0009] Furthermore, the HEPA filter is capable of capturing particles with a diameter greater than 0.3 micrometers, with a filtration efficiency of over 99.97%; the HEPA filter and the activated carbon layer are detachably installed within the filter frame.

[0010] Furthermore, both the pre-filter outer frame and the filter frame are made of corrosion-resistant metal or plastic.

[0011] Furthermore, the phage spray module is capable of atomizing the phage solution into droplets with a diameter of 10-50 μm; The phage solution is a complex mixed phage group solution capable of lysing Escherichia coli, Salmonella, and Staphylococcus aureus, and the phage solution titer is 10. 8 PFU / mL.

[0012] Furthermore, it also includes an air intake fan for introducing the air to be purified into the housing through the air intake.

[0013] Furthermore, it also includes a control system for monitoring and controlling the atomization frequency of the bacteriophage spray module based on air parameters and the concentration of pathogens in the air, as well as adjusting the operating parameters of the intake fan.

[0014] Furthermore, the phage solution storage tank has a double-layer insulation structure, and the phage solution storage tank is equipped with a constant temperature controller and a temperature sensor, and the temperature of the phage solution is maintained at 4-10℃.

[0015] The beneficial effects of this utility model are: This utility model discloses an air purification device for livestock farms that utilizes bacteriophage atomization sterilization. Air flows unidirectionally through the inlet, passing a pre-filter, a bacteriophage spray module, and a high-efficiency filter. The purified air is then discharged through the exhaust outlet. The pre-filter effectively filters particulate matter with a filtration efficiency of 90%. The bacteriophage spray module specifically lyses airborne pathogens. The high-efficiency filter captures fine particles, residual pathogens, and odorous gases, further enhancing the purification effect. The control system monitors air quality data in real time and automatically adjusts the device's operation to ensure purification effectiveness and improve the farming environment. The air to be purified first passes through the pre-filter to intercept large particles, then enters the bacteriophage spray module where atomized bacteriophages kill pathogens. Finally, the high-efficiency filter intercepts residual fine particles and untreated bacteriophage droplets, forming a complete purification chain of coarse filtration, sterilization, and fine filtration. This eliminates risks such as high animal stress, drug residues, and personnel health hazards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an air purification device for livestock farms that utilizes bacteriophage atomization sterilization, as disclosed in an embodiment of this utility model. Figure 2 This is a flowchart illustrating the working principle of an air purification device for livestock farms that utilizes bacteriophage atomization sterilization, as disclosed in this embodiment of the present invention. Figure 3 This is a functional block diagram of the control system of an air purification device for livestock farms that utilizes bacteriophage atomization sterilization, as disclosed in an embodiment of this utility model.

[0018] In the picture: 1. Outer casing; 11. Air inlet; 12. Exhaust outlet; 2. Pre-filter; 21. Pre-filter outer frame; 22. Filter material; 3. Phage spray module; 31. Phage solution storage tank; 32. Atomizing nozzle; 33. Liquid channel; 34. Piping; 35. Air pump; 4. High-efficiency filter; 41. Filter frame; 42. Multi-stage filter media; 421. HEPA filter screen; 422. Activated carbon layer; 5. Control system. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example: like Figure 1 The image shows an air purification device for livestock farms that utilizes bacteriophage atomization sterilization, as provided in this embodiment. It includes a shell 1, a pre-filter 2, a bacteriophage spray module 3, a high-efficiency filter 4, and a control system. The outer casing 1 is provided with an air inlet 11 and an exhaust outlet 12. The pre-filter 2, the bacteriophage spray module 3, and the high-efficiency filter 4 are arranged sequentially inside the outer casing 1 from the air inlet 11 to the exhaust outlet 12. The pre-filter 2 is used to filter large particulate matter; The phage spray module 3 is used to atomize the phage solution into the air for sterilization. The high-efficiency filter 4 is used to capture residual pathogens, small particulate matter and odorous gases in the air; The control system is located on the outer casing 1 and is used to control the air intake and the atomization frequency of the phage solution.

[0021] This utility model discloses an air purification device for livestock farms that utilizes bacteriophage atomization sterilization. The air to be purified first passes through a pre-filter to intercept large particles, then enters a bacteriophage spray module where atomized bacteriophage kills pathogens. Finally, it passes through a high-efficiency filter to intercept residual fine particles and unused bacteriophage droplets, forming a complete purification chain of coarse filtration, sterilization, and fine filtration. The air flows unidirectionally from the pre-filter → bacteriophage spray module → high-efficiency filter through the air inlet, and the purified air is discharged through the exhaust port. The pre-filter can filter particulate matter with a filtration efficiency of 90%. The bacteriophage spray module can specifically lyse pathogens in the air. The high-efficiency filter can capture fine particles, residual pathogens, and odorous gases, further improving the purification effect. The control system monitors air quality data in real time and automatically adjusts the device's operating status to ensure the purification effect and improve the farming environment.

[0022] There is no risk of backflow between the three modules of the device. In practical applications, check valve-type backflow membranes can also be installed between the pre-filter 2 and the phage spray module 3, and between the phage spray module 3 and the high-efficiency filter 4, to ensure air permeability while preventing gas backflow.

[0023] In a specific embodiment, the pre-filter 2 includes a pre-filter outer frame 21 and a filter material 22 disposed within the pre-filter outer frame 21; the filter material 22 is a multi-layer mesh structure of polyester fiber or metal, and the filter material 22 can filter particulate matter with a diameter greater than 10 μm in the air with a filtration efficiency of over 90%.

[0024] Specifically, the mesh structure of the metal can be made of low-carbon steel / cold-rolled steel mesh, galvanized steel wire mesh, stainless steel mesh, or aluminum mesh. The polyester fiber filter material 22 in the pre-filter 2 is lightweight, breathable, and low-cost. Its multi-layered mesh structure further enhances the interception effect through fiber interweaving, making it suitable for small and medium-sized farms. The metal filter material 22 has advantages such as high temperature resistance, acid and alkali resistance, corrosion resistance, and easy cleaning and disinfection. It can adapt to the harsh environment of farms with high temperature and humidity, odors from livestock excrement, and corrosive gases (such as ammonia). It can be reused, reducing long-term consumable costs and allowing for flexible selection by farms of different sizes and environmental needs. For livestock farms, large particulate pollutants are not only physical impurities but may also be accompanied by pathogenic bacteria (such as E. coli and Salmonella). The efficient interception of large particles by the pre-filter 2 reduces the carriers of pollutants in the air, providing a foundation for the subsequent bacteriophage atomization sterilization module to focus on killing free pathogens. This avoids the waste of bacteriophages due to adsorption by large particles, thereby improving overall air purification efficiency. In this embodiment, a pre-filter 2 with galvanized steel wire mesh is selected, and the filter material 22 is detachably installed in the outer frame of the pre-filter 2, which facilitates the regular cleaning or replacement of the filter material 22.

[0025] In a specific embodiment, the phage spray module 3 includes a phage solution storage tank 31 and an atomizing nozzle 32. The phage solution storage tank 31 stores phage solution. The atomizing nozzle 32 is connected to the phage solution storage tank 31 via a liquid channel 33. The liquid channel 33 is connected to an air pump 35 via a pipe 34. The phage solution storage tank 31 delivers phage liquid to the atomizing nozzle 32 through the pump and the liquid channel 33. The air pump 35 provides pressurized gas to the atomizing nozzle 32 through the liquid channel 33, ensuring that the phage solution enters the atomizing nozzle 32 at a stable pressure to achieve the atomization function. At the same time, it ensures that the atomizing nozzle can continuously atomize the solution into droplets that meet the sterilization requirements.

[0026] In a specific embodiment, the high-efficiency filter 4 includes a filter frame 41 and multi-stage filter material 42 disposed within the filter frame 41; The multi-stage filter material 42 includes a HEPA filter 421 and an activated carbon layer 422. The HEPA filter 421 is located within the filter frame 41 near the phage spray module 3, and the activated carbon layer 422 is located within the filter frame 41 away from the phage spray module 3. The HEPA filter, located near the phage spray module 3, first captures airborne particles larger than 0.3 μm (including fine dust that may be contaminated with pathogens and unused phage particles), preventing these particles from clogging the pores of the activated carbon layer 422. The activated carbon layer 422, added after the HEPA filter 421, is used to adsorb odors and harmful gases in the air. After pretreatment by the filter, the air entering the activated carbon layer 422 is basically free of fine particulate matter, allowing the activated carbon layer 422 to focus on adsorbing odors and harmful gases, maximizing its adsorption efficiency. The combination of HEPA filter 421 and activated carbon layer 422 not only improves the purification effect of single pollutants, but also forms a synergistic purification of particulate matter interception and gas adsorption, perfectly adapting to the characteristics of multiple pollutants coexisting in the air of farms, and improving the purification effect.

[0027] In a specific embodiment, the selected HEPA filter 421 can capture particles with a diameter greater than 0.3 micrometers, with a filtration efficiency of over 99.97%. The HEPA filter 421 and the activated carbon layer 422 are detachably installed within the filter frame 41. The thickness of the HEPA filter 421 is preferably 20-30 mm. This thickness of the high-efficiency particulate air (HEPA) filter can increase the filter's dust holding capacity and the particle capture path, ensuring that the filtration efficiency for particles with a diameter > 0.3 μm (such as tiny pathogens not fully utilized by the phage spray module 3, residual phage droplets, and fine dust in the air of the farm) is stably maintained at over 99.97%. An activated carbon layer 422 is added behind the HEPA filter 421 to adsorb odors and harmful gases in the air. The thickness of the activated carbon layer 422 is preferably 10-15mm to fully adsorb the aforementioned harmful gases and odors, and to match the ventilation resistance of the HEPA filter, ensuring that after the air is finely filtered by the HEPA filter, it can smoothly pass through the activated carbon layer 422 to remove odors, so that the discharged clean air has no irritating odor and improves the overall air quality of the farm.

[0028] In a specific embodiment, both the pre-filter outer frame 21 and the filter frame 41 are made of corrosion-resistant metal or plastic. The corrosion-resistant metal can be 304 stainless steel, 316 stainless steel, or galvanized steel plate. The plastic material can be polypropylene (PP), polyvinyl chloride (PVC), or ABS engineering plastic. Livestock farms have high air humidity (such as water vapor generated from livestock drinking water and cleaning) and contain corrosive gases such as ammonia and hydrogen sulfide. Designing the filter frame 41 with the above-mentioned materials can ensure the structural stability and durability of the filter.

[0029] In a specific embodiment, the phage spray module 3 is capable of atomizing the phage solution into droplets with a diameter of 10-50 μm; The phage solution is a complex mixed phage group solution capable of lysing Escherichia coli, Salmonella, and Staphylococcus aureus (such as a complex phage group solution of Escherichia coli phage T4, Salmonella phage SPP1, and Staphylococcus aureus phage Φ11), and the phage solution titer is 10. 8 PFU / mL. This complex mixed phage solution can simultaneously lyse common pathogens in livestock farms, such as Escherichia coli, Salmonella, and Staphylococcus aureus, overcoming the limited sterilization range of single phages and adapting to the complex microbial environment of livestock farms. The titer is 10. 8 A PFU / mL phage solution ensures a sufficient number of phages for efficient infection and lysis of target bacteria while avoiding resource waste that may result from excessively high concentrations. Furthermore, phages specifically infect bacteria and are harmless to livestock, humans, and the environment, making them safer than chemical disinfectants. Atomizing the phage solution into tiny droplets with a diameter of 10-50 μm ensures that droplets smaller than 50 μm remain suspended in the air for a sufficiently long time, allowing for uniform diffusion throughout the farm. Droplets larger than 10 μm reduce the risk of phage inactivation due to rapid evaporation and prevent stress caused by inhaling ultrafine particles (<10 μm) into the respiratory tract of livestock, thus balancing sterilization efficiency and biosafety. The phage spray module 3 also includes a control system interface for connecting to the control system and receiving signals from the control system to adjust the spray volume of the phage solution. The phage spray module 3 works in conjunction with the device's pre-filter. The pre-filter first filters out large particulate pollutants, and then the phage atomization precisely inactivates pathogens in the air, forming a synergistic effect of physical filtration and biological sterilization, which significantly improves the air hygiene quality of the farm and reduces the risk of livestock and poultry disease transmission.

[0030] In a specific embodiment, an air intake fan is also included, which is used to introduce the air to be purified into the housing 1 (the device) through the air intake port, thereby realizing the air purification function of the device.

[0031] In a specific embodiment, a control system 5 is also included, used to monitor and control the atomization frequency of the bacteriophage spray module based on air parameters and the concentration of pathogens in the air, and to adjust the operating parameters of the intake fan. The control system includes an air quality monitoring module and an intelligent control module. The air quality monitoring module monitors air parameters in the livestock farm (pathogen, bacteria, particulate matter content, etc.) and sends the monitored air quality data to the intelligent control module. Based on the obtained current air quality data and the concentration of pathogens in the air, the intelligent control module automatically adjusts the atomization frequency (spraying frequency) of the bacteriophage spray module and adjusts the operating parameters of the intake fan (running time, speed, flow rate, etc.) to change the air intake volume, thereby achieving an optimized balance between air purification efficiency and energy consumption. The data transmission, data transfer, and control processes related to the control system involved in this solution are all existing technologies, and their more specific principles will not be elaborated here.

[0032] In a specific embodiment, the phage solution storage tank 31 has a double-layer insulation structure. The phage solution storage tank 31 is equipped with a constant temperature controller and a temperature sensor. The temperature of the phage solution is maintained at 4-10℃. 4-10℃ is the optimal range for phage storage activity. The device maintains this temperature range through a temperature control system such as a constant temperature controller and a temperature sensor to ensure the long-term operational stability of the phage spray module.

[0033] In a specific embodiment, the bottom of the outer casing is provided with casters to facilitate the movement of the device.

[0034] The working principle of this device is as follows: 1. Air from the farm enters the device through air inlet 11 and passes through pre-filter 2 to filter out large particulate impurities. Pre-filter 2 can filter particles with a diameter greater than 10 micrometers, with a filtration efficiency of over 90%. 2. After being filtered by pre-filter 2, the air enters the phage spray module 3, where the phage solution is atomized and sprayed into the air, specifically lysing airborne pathogens; 3. The air treated by the bacteriophage enters the high-efficiency filter 4. The high-efficiency filter 4 captures tiny particles and residual pathogens. The HEPA filter 421 can capture particles with a diameter greater than 0.3 micrometers, with a filtration efficiency of over 99.97%. The activated carbon layer 422 can effectively remove odors and harmful gases from the air and improve air quality. 4. The purified air is discharged from the device through exhaust port 12, improving the breeding environment; 5. The control system monitors air quality parameters in real time and automatically adjusts the device's operating status to ensure purification effectiveness. The flowchart of the air purification working principle of this device is shown below. Figure 2 As shown, the functional block diagram of the control system of this device is as follows: Figure 3 As shown.

[0035] The purification effect of this device was verified by the following experiments: Verification Experiment 1: Air Quality Comparison Data (Before Installation vs. After Installation) Location: A closed chicken coop at a poultry farm, with an area of ​​approximately 200 m². 2 The chickens are 42 days old and there are 3,000 chickens in stock.

[0036] Time: June 2025, with a testing period of 7 days.

[0037] Tools: airborne bacteria sampler, PM2.5 laser detector, thermometer and hygrometer, ammonia detection tube.

[0038] Table 1. Air quality comparison data (before installation vs. after installation)

[0039] Air quality began to improve significantly from the third day after installation and stabilized on the fifth day. The results in Table 1 show that this device can effectively improve air quality and effectively purify the air used in aquaculture.

[0040] Verification Experiment 2: Inactivation of Pathogens (Dynamic Verification of Bacteriophage Effectiveness) Target strain: Escherichia coli O78 (respiratory type); Initial concentration: 10 7 CFU / m 3 ; Phage concentration: 10 8 PFU / mL (spray according to recommended settings after atomization); Monitoring time points: 0, 1, 2, 4, 6, and 8 hours.

[0041] Table 2. Pathogen inactivation status

[0042] The results in Table 2 show that 2-4 hours is the main inactivation window period, and continuous atomization can rapidly inhibit bacterial growth.

[0043] Verification Experiment 3: The relationship between the retention time of bacteriophage activity and the temperature control of the device; Storage temperature: 4℃, 10℃, 20℃, 25℃ (room temperature); Test duration: 0 days, 3 days, 7 days, 14 days; Activity indicator: phage titer (PFU / mL).

[0044] Table 3. Relationship between phage activity retention time and device temperature control

[0045] The results in Table 3 show that 4-10℃ is the optimal range for phage storage activity, and the device should be equipped with a temperature control system to maintain this temperature range to ensure long-term operational stability.

[0046] In summary, this device can reduce airborne pathogens by more than 95% within 8 hours and reduce the total concentration of airborne bacteria by more than 90% after 7 days. Bacteriophages maintain >90% activity for 14 days at 4℃. This device has the advantages of high sterilization efficiency, safety and environmental protection, and intelligent control, which significantly reduces the risk of respiratory diseases in farmed animals and is suitable for various large-scale farms.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air purification device for livestock farms that utilizes bacteriophage atomization sterilization, characterized in that, It includes a housing (1), a pre-filter (2), a phage spray module (3), a high-efficiency filter (4), and a control system; The outer shell (1) is provided with an air inlet (11) and an exhaust outlet (12). The pre-filter (2), the phage spray module (3), and the high-efficiency filter (4) are arranged in sequence inside the outer shell (1) from the air inlet (11) to the exhaust outlet (12). The pre-filter (2) is used to filter large particulate matter; The phage spray module (3) is used to atomize the phage solution into the air for sterilization; The high-efficiency filter (4) is used to capture residual pathogens, small particulate matter and odorous gases in the air; The control system is located on the outer shell (1) and is used to control the air intake and the atomization frequency of the phage solution.

2. The livestock farm air purification device utilizing bacteriophage atomization sterilization according to claim 1, characterized in that, The pre-filter (2) includes a pre-filter frame (21) and a filter material (22) disposed within the pre-filter frame (21); the filter material (22) is a multi-layer mesh structure of polyester fiber or metal, and the filter material (22) can filter particulate matter with a diameter greater than 10 μm in the air with a filtration efficiency of over 90%.

3. The livestock farm air purification device utilizing bacteriophage atomization sterilization according to claim 1, characterized in that, The phage spray module (3) includes a phage solution storage tank (31) and an atomizing nozzle (32). The phage solution storage tank (31) stores phage solution. The atomizing nozzle (32) is connected to the phage solution storage tank (31) via a liquid channel (33). The liquid channel (33) is connected to an air pump (35) via a pipeline (34).

4. The livestock farm air purification device using bacteriophage atomization sterilization according to claim 2, characterized in that, The high-efficiency filter (4) includes a filter frame (41) and multi-stage filter material (42) disposed within the filter frame (41). The multi-stage filter material (42) includes a HEPA filter (421) and an activated carbon layer (422). The HEPA filter (421) is located in the filter frame (41) on the side close to the phage spray module (3), and the activated carbon layer (422) is located in the filter frame (41) on the side away from the phage spray module (3).

5. The livestock farm air purification device using bacteriophage atomization sterilization according to claim 4, characterized in that, The HEPA filter (421) can capture particles with a diameter greater than 0.3 micrometers and has a filtration efficiency of over 99.97%. The HEPA filter (421) and the activated carbon layer (422) are detachably installed in the filter frame (41).

6. The livestock farm air purification device using bacteriophage atomization sterilization according to claim 4, characterized in that, Both the pre-filter outer frame (21) and the filter frame (41) are made of corrosion-resistant metal or plastic.

7. The livestock farm air purification device utilizing bacteriophage atomization sterilization according to claim 1, characterized in that, The phage spray module (3) can atomize the phage solution into droplets with a diameter of 10-50 μm; The phage solution is a complex mixed phage group solution capable of lysing Escherichia coli, Salmonella, and Staphylococcus aureus, and the phage solution titer is 10. 8 PFU / mL.

8. The livestock farm air purification device using bacteriophage atomization sterilization according to claim 1, characterized in that, It also includes an air intake fan for introducing the air to be purified into the housing (1) through the air intake.

9. The livestock farm air purification device using bacteriophage atomization sterilization according to claim 8, characterized in that, It also includes a control system (5) for monitoring and controlling the atomization frequency of the bacteriophage spray module based on air parameters and the concentration of pathogens in the air, and for adjusting the operating parameters of the intake fan.

10. The livestock farm air purification device utilizing bacteriophage atomization sterilization according to claim 3, characterized in that, The phage solution storage tank (31) has a double-layer insulation structure. The phage solution storage tank (31) is equipped with a constant temperature controller and a temperature sensor inside, and the temperature of the phage solution is maintained at 4-10℃.

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