Comprehensive treatment system for foul gas and carbon dioxide in livestock farm

Abstract

The utility model discloses a comprehensive treatment system for foul gas and carbon dioxide in a livestock farm. The comprehensive treatment system comprises an ammonia gas collecting chamber, an ammonia water collecting device and a reaction kettle which are communicated with the livestock farm. A negative pressure device for forming negative pressure is arranged in the ammonia gas collecting chamber, so that waste gas of the farm is sucked into the ammonia gas collecting chamber, an ultra-micro bubble generator is arranged at the top of the ammonia gas collecting chamber and is used for forming ionized ultra-micro bubbles, and a drainage water tank is arranged at the bottom of the ammonia gas collecting chamber and is used for draining the waste gas in the farm. Ammonia gas and carbon dioxide in the waste gas of the livestock farm are dissolved in the ultramicro bubbles and fall into the drainage water tank, the drainage water tank guides the collected mixed solution to the ammonia water collecting device, and the ammonia water collecting device collects the mixed solution and sends the mixed solution to the reaction kettle; after the mixed solution reacts with carbon dioxide and brine in the reaction kettle, byproducts such as ammonium salt and bicarbonate are obtained through solid-liquid separation, additional economic value is generated, carbon dioxide in a field area is neutralized, and the air quality of the farm is improved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a comprehensive treatment system for malodorous gas and carbon dioxide in a farm. Background Art

[0002] During the production and operation of intensive pig farms, a large amount of waste gas is generated due to the decomposition of organic matter such as animal manure and feed residues. These waste gases primarily include ammonia, carbon dioxide, and other malodorous gases, with ammonia having the highest concentration in the waste gas. During the breeding process, each fattened pig emits 107.18 to 424.42 mg / h of ammonia. For large-scale pig farms raising tens of thousands of pigs, the average daily nitrogen emissions can reach 105 kg. Ammonia not only has a pungent odor that affects air quality, but also poses a threat to animal health and the surrounding ecological environment. Therefore, ammonia needs to be promptly treated. Furthermore, during the pig breeding process, the large amount of carbon dioxide produced by respiration cannot be ignored. Excessive carbon dioxide in the farm not only affects air quality but also, to a certain extent, affects pig health.

[0003] In the prior art, waste gas is generally treated in the following ways:

[0004] 1. Remove ammonia and malodorous gases through ventilation equipment;

[0005] 2. Absorb ammonia and malodorous gases through adsorption materials;

[0006] 3. Decompose ammonia and malodorous gases through biodegradation.

[0007] Since ammonia is an important raw material for the nitrogen fertilizer industry, the above treatment methods do not rationally utilize the ammonia generated by farms, resulting in a waste of raw materials. Moreover, the removal of ammonia by ventilation, adsorption, etc. needs to take into account the need for further processing. For example, in the prior art, Chinese patent publication number CN221815725U discloses an ammonia purification and collection device for livestock and poultry breeding houses. The device utilizes an air intake chamber, a spray chamber, a collection chamber, and an exhaust chamber within a ventilation box. Due to the property that ammonia is soluble in water, the air containing ammonia in the livestock and poultry breeding house is sucked into the spray chamber by negative pressure. The ammonia is then covered and sprayed using a relatively inclined spray rack. The collection chamber can then facilitate the collection of ammonia water, but the ammonia water still needs to be processed later.

[0008] In view of this, the present invention proposes an efficient, green, environmentally friendly and economical ammonia and carbon dioxide treatment system to solve the above problems, complete the treatment of malodorous gases, and also treat carbon dioxide to achieve carbon solidification. Summary of the Invention

[0009] In order to overcome the shortcomings of the above-mentioned technologies, the utility model provides a comprehensive treatment system for malodorous gases and carbon dioxide in farms, which can collect ammonia and carbon dioxide in farms and combine chemical reaction with physical separation technology to achieve effective gas treatment and resource recycling.

[0010] A comprehensive treatment system for malodorous gases and carbon dioxide from a farm, comprising an ammonia collection chamber connected to the farm, an ammonia water collection device, a reactor, a brine storage tank for providing brine water to the reactor, and a carbon dioxide storage tank for providing carbon dioxide to the reactor; the ammonia collection chamber is provided with a negative pressure device for forming a negative pressure, so that waste gas from the farm is sucked into the ammonia collection chamber; the top of the ammonia collection chamber is provided with an ultrafine bubble generator for forming ionized ultrafine bubbles or is connected to a pipe outlet for spraying ionized ultrafine bubbles; the bottom of the ammonia collection chamber is provided with a drainage trough; ammonia and carbon dioxide in the waste gas from the farm dissolve in the ultrafine bubbles and fall into the drainage trough; the drainage trough guides the collected mixed solution to the ammonia water collection device; the ammonia water collection device is used to collect the mixed solution and send it to the reactor; the mixed solution reacts with the carbon dioxide and brine water in the reactor, and undergoes solid-liquid separation to obtain ammonium salt and bicarbonate.

[0011] Preferably, the farm malodorous gas and carbon dioxide integrated treatment system further comprises a salt field for obtaining brine, and the brine is stored in a brine storage tank. The saturated brine solution obtained by drying the brine in the salt field is formed into brine by adding excess CaCl2 and Ca(OH)2, and the brine is stored in the brine storage tank. + , Ca 2+ 、 Cl - OH - The mixed solution, brine, and carbon dioxide react to produce NaHCO3, CaCO3, and NH4Cl. The reaction equations involved in this process are as follows:

[0012] NH3+ H2O + CO2= NH4HCO3

[0013] NH4HCO3+NaCl=NaHCO3↓+NH4Cl

[0014] Ca 2+ +CO3 2- = CaCO3↓

[0015] Preferably, the ammonia water collection device includes an air collecting hood, a condenser, and a liquid storage tank. One end of the air collecting hood is connected to the ammonia collection chamber, and the other end of the air collecting hood is connected to the feed pipe of the condenser. The discharge pipe of the condenser is connected to the liquid storage tank; the negative pressure device forms a guide wind field to blow the air in the ammonia collection chamber to the air collecting hood, and the air collecting hood guides the air in the ammonia collection chamber to the condenser. The condenser condenses the air in the ammonia collection chamber, and the condensate obtained by condensation and the mixed solution collected in the drainage tank are stored in the liquid storage tank.

[0016] Preferably, the brine storage tank is connected to the reactor through a brine pipe, and the liquid storage tank is connected to the brine pipe through an ammonia pipe. The ammonia pipe is perpendicular to the brine pipe. The diameter of the brine pipe at the connection with the ammonia pipe is smaller than the diameter of the brine pipe at both ends. The brine pipe and the ammonia pipe constitute a Bernoulli device.

[0017] Preferably, a product outlet is provided at the bottom of the reactor, and a filter and a first storage tank are provided at the product outlet. The filter is used to separate the ammonium salt solution and the bicarbonate solid, and the first storage tank is used to store the bicarbonate solid.

[0018] Preferably, the integrated treatment system for farm malodorous gases and carbon dioxide also includes a condensation crystallization device for precipitating ammonium salts, a separator for separating the precipitated ammonium salt solids, and a second storage tank for storing the ammonium salt solids. The solution filtered by the separator is returned to the salt drying field.

[0019] Preferably, the integrated treatment system for malodorous gases and carbon dioxide from a farm also includes a catalytic treatment device, and the separator is a three-phase separation device. The separator is provided with a solid outlet, a liquid phase outlet, and a gas phase outlet. The solid outlet is connected to the second storage tank through a first pipe, the liquid phase outlet is connected to a second pipe extending to the salt field, and the gas phase outlet is connected to the catalytic treatment device through a third pipe.

[0020] Preferably, the farm malodorous gas and carbon dioxide integrated treatment system further comprises a neutralization tank, the reactor is provided with a pressure relief valve, the pressure relief valve is connected to the neutralization tank via a fourth pipeline, and the neutralization tank is provided with an acidic solution for absorbing ammonia.

[0021] Preferably, a stirring device is provided in the reactor.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This utility model first uses an ultrafine bubble generator to generate electrostatically charged ultrafine bubbles. These bubbles have a large specific surface area, increasing the contact area between ammonia and water. Furthermore, the ionized ultrafine bubbles attract ammonia molecules through the electrostatic effect, thereby improving the efficiency of ammonia collection. Furthermore, ammonia is highly soluble in water, and the ultrafine bubbles containing ammonia are alkaline, which facilitates the dissolution of carbon dioxide in farm waste gas into the ultrafine bubbles, thereby achieving the collection of carbon dioxide from the waste gas.

[0024] Because the ammonia content in the exhaust gas is greater than the carbon dioxide content, and ammonia reacts with carbon dioxide and water to form ammonium bicarbonate, the ultrafine bubbles contain ammonium bicarbonate and ammonia water. The mixed solution in the ammonia water collection device also contains ammonium bicarbonate and ammonia water, requiring further treatment. Therefore, the mixed solution needs to react with carbon dioxide and brine in a reactor to produce ammonium salts and bicarbonates.

[0025] The comprehensive waste gas treatment system of the present invention not only treats ammonia in the site, neutralizes carbon dioxide in the site, and improves the air quality of the farm, but also produces by-products such as ammonium salts and bicarbonates, providing additional economic value, and combining waste treatment with green industry innovation.

[0026] 2. The ammonia collection device includes a gas collecting hood, a condenser, and a liquid storage tank. The negative pressure device forms a guide wind field to blow the ultrafine bubbles and air in the ammonia collection chamber that have not fallen into the drainage water tank to the gas collecting hood. The gas collecting hood guides these gases to the condenser. As the temperature decreases, the solubility of the gas increases. Under the action of condensation, the ammonia and carbon dioxide in the air that have not been collected dissolve in the ultrafine bubbles, further collecting the ammonia and carbon dioxide in the exhaust gas.

[0027] 3. The present invention utilizes the different solubilities of bicarbonate and ammonium salts to separate the reacted ammonium salt solution from the less soluble bicarbonate solid. The ammonium salt is then crystallized by graded cooling in a condensation crystallization device. This physical separation of the mixed product salts utilizes the difference in solubility, avoiding the use of chemical reagents for purification and reducing environmental pollution. Furthermore, the solution filtered through the separator is returned to the salt drying field, maximizing resource recycling.

[0028] 4. The reactor is equipped with a pressure relief valve, which is connected to the neutralization tank through a fourth pipe. The neutralization tank is equipped with an acidic solution for absorbing ammonia to prevent ammonia in the reactor from leaking into the air.

[0029] 5. The entire gas treatment system extracts the waste gas from the farm, creating a slightly negative pressure environment in the farm, preventing the odorous gas from spreading outward and protecting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1The utility model is a schematic diagram of a comprehensive treatment system for malodorous gas and carbon dioxide in a farm.

[0031] Figure 2 It is a schematic diagram of the ammonia collection chamber of the present utility model. DETAILED DESCRIPTION

[0032] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0033] An embodiment of the present utility model provides a comprehensive treatment system for malodorous gases and carbon dioxide in a farm, comprising an ammonia gas collection chamber 1 connected to the farm, an ammonia water collection device 2, and a reactor 3.

[0034] like Figure 2 As shown, the ammonia collection chamber 1 is provided with a negative pressure device 12, so that the waste gas from the farm is sucked into the ammonia collection chamber 1. The top of the ammonia collection chamber 1 is provided with an ultrafine bubble generator, which is used to form ionized ultrafine bubbles with a diameter of 50~300nm, and generates about 10 per milliliter of water. 9 Ultrafine bubbles are generated, and the ultrafine bubbles comply with the ISO / TC281 technical standard. In other embodiments, the top of the ammonia collection chamber 1 can also be connected to a pipe outlet that can spray out ionized ultrafine bubbles. Specifically, when water passes through the nozzle or orifice plate of the ultrafine bubble generator, the high-pressure water flow forms a low-pressure area, i.e., a gravity cavity. This low-pressure area makes it easier for gas to be inhaled and dissolved in water. Under the action of high pressure, the gas is forcibly injected into the water flow. Due to the existence of the gravity cavity, the gas can quickly disperse and form a large number of negatively charged ultrafine bubbles. Since the ultrafine bubbles all carry the same charge, the ultrafine bubbles are difficult to merge and can exist more stably in the air. In addition, the specific surface area of ​​the ultrafine bubbles is large, which increases the contact area between ammonia and water, and the ionized ultrafine bubbles can attract ammonia molecules through the electrostatic effect, thereby improving the efficiency of the ultrafine bubbles in collecting ammonia. Moreover, ammonia is highly soluble in water, and ultrafine bubbles containing ammonia are alkaline, which is conducive to the dissolution of carbon dioxide in farm waste gas in ultrafine bubbles, thereby realizing the collection of carbon dioxide in the waste gas.

[0035] A drainage trough 13 is located at the bottom of ammonia collection chamber 1. Ammonia and carbon dioxide in the farm waste gas dissolve in ultrafine bubbles and fall into drainage trough 13, which then directs the collected mixed solution to ammonia collection device 2. Because the ammonia content in the waste gas is greater than the carbon dioxide content, and ammonia reacts with carbon dioxide and water to form ammonium bicarbonate, the ultrafine bubbles contain ammonium bicarbonate and ammonia water. The mixed solution in the ammonia collection device also contains ammonium bicarbonate and ammonia water.

[0036] The ammonia water collecting device 2 collects the mixed solution and sends it to the reactor 3. The mixed solution reacts with the carbon dioxide and brine in the reactor 3 and undergoes solid-liquid separation to obtain ammonium salt and bicarbonate.

[0037] Specifically, the negative pressure device 12 is a plurality of axial flow fans.

[0038] like Figure 1 As shown, the farm malodorous gas and carbon dioxide comprehensive treatment system also includes a salt field 4 and a brine storage tank 41. The saturated salt solution obtained by the salt field 4 is formed into brine by adding excess CaCl2 and Ca(OH)2. CaCl2 and Ca(OH)2 are used to remove MgSO4 in the saturated salt solution, generating byproducts CaSO4 and Mg(OH)2, so that the brine contains Na + , Ca 2+ 、 Cl - OH - The brine is stored in the brine storage tank 41. 2+ CO3 in brine 2- reaction to generate CaCO3, a by-product with economic value.

[0039] The ammonia collection device 2 includes a gas collecting hood 23, a condenser 21, and a liquid storage tank 22. One end of the gas collecting hood 23 is connected to the ammonia collection chamber 1, and the other end of the gas collecting hood 23 is connected to the feed pipe of the condenser 21. The negative pressure device 12 forms a guide wind field to blow the air from the ammonia collection chamber 1 to the gas collecting hood 23, and the gas collecting hood 23 guides the air from the ammonia collection chamber 1 to the condenser 21. Under the action of condensation, the ammonia and carbon dioxide in the air that are not collected dissolve in ultrafine bubbles, further collecting the ammonia and carbon dioxide in the exhaust gas. The condensate obtained by condensation and the mixed solution collected by the drainage tank 13 are both stored in the liquid storage tank 22.

[0040] Since the reactor 3 needs to be sealed during reaction, a liquid storage tank 22 is required to temporarily store the mixed solution containing ammonia water. When the reactor 3 needs to be fed, the mixed solution in the liquid storage tank 22 is transported to the reactor 3.

[0041] The brine storage tank 41 is connected to the reactor 3 through a brine pipe 411, and the liquid storage tank 22 is connected to the brine pipe 411 through an ammonia pipe 221. The ammonia pipe 221 is perpendicular to the brine pipe 411. The diameter of the brine pipe 411 at the connection with the ammonia pipe 221 is smaller than the diameters at both ends of the brine pipe 411, so that the flow rate of the brine pipe 411 at the connection with the ammonia pipe 221 is large and the pressure is small, which is conducive to the downstream mixing of ammonia water and brine; and the diameters at both ends of the brine pipe 411 are large, the flow rate is small, and the pressure is high, so that the pressure and flow rate in the brine pipe 411 are different, which is conducive to the full mixing of ammonia water and brine.

[0042] The integrated treatment system for farm malodorous gases and carbon dioxide further comprises a carbon dioxide storage tank 5, which is used to store carbon dioxide.

[0043] A product outlet is provided at the bottom of the reactor 3, and a filter 61 and a first storage tank 62 are provided at the product outlet. The filter 61 is used to separate the NH4Cl solution and the NaHCO3 and CaCO3 solids, and the first storage tank 62 is used to store the NaHCO3 and CaCO3 solids.

[0044] The integrated treatment system for farm malodorous gases and carbon dioxide also includes a condensation crystallization device 63 for precipitating NH4Cl, a separator 64 for separating the precipitated NH4Cl solid, and a second storage tank 65 for storing the NH4Cl solid. The solution filtered by the separator 64 is returned to the salt field 4.

[0045] The farm's integrated malodorous gas and carbon dioxide treatment system also includes a catalytic treatment device. Separator 64 is a three-phase separation device with a solids outlet, a liquid outlet, and a gaseous outlet. The solids outlet is connected to a second storage tank 65 via a first pipe 67. The liquid outlet is connected to a second pipe 68 extending to the salt drying field 4. The gaseous outlet is connected to a catalytic treatment device (not shown in the drawings) via a third pipe. The catalytic treatment device is used to treat the remaining malodorous waste gas.

[0046] The present invention utilizes the different solubilities of NaHCO₃, CaCO₃, and NH₄Cl to separate the reacted NH₄Cl solution from the insoluble NaHCO₃ and CaCO₃ solids. The solution is then cooled by a condensation crystallization device 63 to allow the NH₄Cl to crystallize. This physical separation of the mixed product salts utilizes the solubility differences, avoiding the use of chemical reagents for purification and reducing environmental pollution. Furthermore, the solution filtered by the separator 64 is returned to the salting field 4, maximizing resource recycling.

[0047] The integrated farm malodorous gas and carbon dioxide treatment system also includes a neutralization tank 7. Reactor 3 is equipped with a pressure relief valve 71, which is connected to neutralization tank 7 via a fourth pipe 72. Neutralization tank 7 contains an acidic solution for absorbing ammonia gas, preventing ammonia gas from leaking into the air. In this embodiment, the acidic solution is a NaHSO4 solution, and the chemical equation involved in the neutralization reaction is: 2NaHSO4 + 2NH3 = (NH4)2SO4 + Na2SO4 + H2O.

[0048] The reactor 3 is provided with a stirring device for stirring the ammonia water, brine and carbon dioxide to fully react. The air inlet of the ammonia collection chamber 1 is provided with a filtering device.

[0049] The process of treating farm waste gas in the embodiment of the present invention is as follows: First, the ultrafine bubble generator 11 forms ultrafine bubbles, which fall from the top of the ammonia collection chamber 1 and fill the entire ammonia collection chamber 1. Then the negative pressure device 12 works, and the ammonia collection chamber 1 is in a negative pressure state. The waste gas from the farm is sucked into the farm under the action of the negative pressure. The waste gas comes into contact with the ultrafine bubbles.

[0050] There are large amounts of carbon dioxide and ammonia. Ammonia is highly soluble in water, and the ultrafine bubbles are small in size and have a large specific surface area. The contact area between the ultrafine bubbles and the exhaust gas is large, causing most of the ammonia in the exhaust gas to dissolve in the ultrafine bubbles. The ammonia dissolved in the ultrafine bubbles makes the ultrafine bubbles alkaline. The alkaline ultrafine bubbles easily absorb the carbon dioxide in the exhaust gas, thus achieving the first step of collecting ammonia and carbon dioxide in the exhaust gas.

[0051] Afterwards, most of the ultrafine bubbles fall into the drainage trough 13 under the action of gravity. The drainage trough 13 is tilted toward the liquid storage tank, so that the mixed solution collected by the drainage trough 13 is tilted toward the liquid storage tank. A small number of ultrafine bubbles that do not fall into the drainage trough 13 are guided by the negative pressure device to form a guide wind field to blow the air in the ammonia collection chamber to the gas collection hood. The gas collection hood guides the air in the ammonia collection chamber to the condenser. The air in the ammonia collection chamber includes ultrafine bubbles, unabsorbed ammonia, and carbon dioxide. The condenser condenses the ultrafine bubbles through heat exchange, and because the lower the temperature, the higher the solubility of ammonia and carbon dioxide, so that ammonia and carbon dioxide further dissolve in the ultrafine bubbles, and the condensate obtained by condensation is transported and stored in the liquid storage tank, thereby realizing the second step of collecting ammonia and carbon dioxide in the exhaust gas. Most of the mixed solution in the liquid storage tank is ammonia water.

[0052] The mixed solution is transported to the brine pipe 411 through the ammonia pipe 221, and after being fully mixed with the brine in the brine pipe 411, it is transported to the reactor 3. The carbon dioxide from the carbon dioxide storage tank 5 is then transported to the reactor 3. After the transportation is completed, all inlets of the reactor 3 are closed, and the stirring device is turned on to stir the mixture in the reactor 3 and a chemical reaction occurs. The main reaction equations involved in this process are as follows: NH3 + H2O + CO2 = NH4HCO3, NH4HCO3 + NaCl = NaHCO3↓ + NH4Cl, Ca 2+ +CO3 2- = CaCO3↓.

[0053] After the reaction is complete, the mixture in reactor 3 flows from the product outlet to filter 61. Due to the low solubility of NaHCO3 and CaCO3 and the high solubility of NH4Cl, most of the NaHCO3 and CaCO3 are solid precipitates. Filter 61 separates the NH4Cl solution from the NaHCO3 and CaCO3 solids. The filtered NaHCO3 and CaCO3 solids are stored in a first storage tank 62. The NH4Cl solution enters a condensation crystallization device 63. The crystallized NH4Cl is cooled at 5°C to 10°C and stored in a second storage tank 65. The remaining solution flows back to the salt field 4. The remaining malodorous gases are treated in a catalytic treatment device 66 before being discharged.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A comprehensive treatment system for malodorous gas and carbon dioxide in farms, characterized by: The invention comprises an ammonia collection chamber (1) connected to a farm, an ammonia water collection device (2), a reactor (3), a salt water storage tank (41) for providing brine to the reactor (3), and a carbon dioxide storage tank (5) for providing carbon dioxide to the reactor (3); a negative pressure device (12) for forming a negative pressure is provided in the ammonia collection chamber (1), so that waste gas from the farm is sucked into the ammonia collection chamber (1); an ultrafine bubble generator (11) or a device for forming ionized ultrafine bubbles is provided on the top of the ammonia collection chamber (1). A pipe outlet for ejecting ionized ultrafine bubbles is connected, and a drainage trough (13) is provided at the bottom of the ammonia collection chamber (1). Ammonia and carbon dioxide in the farm waste gas dissolve in the ultrafine bubbles and fall into the drainage trough (13). The drainage trough (13) guides the collected mixed solution to the ammonia collection device (2). The ammonia collection device (2) is used to collect the mixed solution and send it to the reactor (3). The mixed solution reacts with the carbon dioxide and brine in the reactor (3) and undergoes solid-liquid separation to obtain ammonium salt and bicarbonate.

2. A comprehensive treatment system for farm malodorous gas and carbon dioxide according to claim 1, characterized in that: It also includes a salt field (4) for obtaining brine, and the brine is stored in a brine storage tank (41).

3. A comprehensive treatment system for farm malodorous gas and carbon dioxide according to claim 2, characterized in that: The ammonia water collecting device (2) comprises an air collecting hood (23), a condenser (21), and a liquid storage tank (22); one end of the air collecting hood (23) is connected to the ammonia collecting chamber (1); the other end of the air collecting hood (23) is connected to the feed pipe of the condenser (21); the discharge pipe of the condenser (21) is connected to the liquid storage tank (22); the negative pressure device (12) forms a guide wind field to blow the air in the ammonia collecting chamber (1) to the air collecting hood (23); the air collecting hood (23) guides the air in the ammonia collecting chamber (1) to the condenser (21); the condenser (21) condenses the air in the ammonia collecting chamber (1); and the condensate obtained by condensation and the mixed solution collected by the drainage tank (13) are both stored in the liquid storage tank (22).

4. A comprehensive treatment system for farm malodorous gas and carbon dioxide according to claim 3, characterized in that: The brine storage tank (41) is connected to the reactor (3) via a brine pipe (411), and the liquid storage tank (22) is connected to the brine pipe (411) via an ammonia pipe (221). The ammonia pipe (221) is perpendicular to the brine pipe (411). The diameter of the brine pipe (411) at the junction with the ammonia pipe (221) is smaller than the diameters at both ends of the brine pipe (411). The brine pipe (411) and the ammonia pipe (221) form a Bernoulli device.

5. The integrated treatment system for malodorous gas and carbon dioxide from a farm according to claim 3, characterized in that: The bottom of the reactor (3) is provided with a product outlet, and a filter (61) and a first storage tank (62) are provided at the product outlet. The filter (61) is used to separate the ammonium salt solution and the bicarbonate solid, and the first storage tank (62) is used to store the bicarbonate solid.

6. A comprehensive treatment system for farm malodorous gas and carbon dioxide according to claim 5, characterized in that: It also includes a condensation crystallization device (63) for precipitating ammonium salt, a separator (64) for separating the precipitated ammonium salt solid, and a second storage tank (65) for storing the ammonium salt solid. The solution filtered by the separator (64) is returned to the salt drying field (4).

7. A comprehensive treatment system for malodorous gas and carbon dioxide from a farm according to claim 6, characterized in that: It also includes a catalytic treatment device, the separator (64) is a three-phase separation device, the separator (64) is provided with a solid outlet, a liquid phase outlet, and a gas phase outlet, the solid outlet is connected to the second storage tank (65) through a first pipe (67), the liquid phase outlet is connected to a second pipe (68) extending to the salt field (4), and the gas phase outlet is connected to the catalytic treatment device through a third pipe.

8. The integrated treatment system for malodorous gas and carbon dioxide from a farm according to claim 1, characterized in that: The reactor (3) further comprises a neutralization tank (7). The reactor (3) is provided with a pressure relief valve (71). The pressure relief valve (71) is connected to the neutralization tank (7) via a fourth pipe (72). An acidic solution for absorbing ammonia is provided in the neutralization tank (7).

9. The integrated treatment system for malodorous gas and carbon dioxide from a farm according to claim 1, characterized in that: The reactor (3) is provided with a stirring device.

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