System for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage

Abstract

The invention discloses a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage, and relates to the technical field of pig farm sewage deodorization treatment. The invention discloses a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage. The system comprises an air-water ratio self-absorption system, a photosynthetic oxygen self-production system and a double-sided binary deodorization system, wherein the air-water ratio self-absorption system is built above a sewage storage tank; and the photosynthetic oxygen self-production system and the double-sided binary deodorization system are built in the air-water ratio self-absorption system. The invention develops a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage, and the system is based on the characteristics of sewage and the dissolution and discharge rule of odor, combines a coating type photocatalyst and negative oxygen ion deodorization technology, integrates the photosynthetic oxygen production capacity of chlorella, and considers the factors of illumination and non-illumination, so that the water-soaked manure sewage treatment efficiency is improved, and the water-soaked manure sewage treatment efficiency is improved. According to the system disclosed by the invention, the interaction relationship among all factors is systematically researched, so that the effects of quickly removing and improving the deodorization efficiency can be achieved, and the framework structure constructed by the system is low in cost, easy to carry and reusable.

Description

Technical Field

[0001] The present invention relates to the technical field of deodorization treatment of pig farm sewage, and particularly relates to a system for removing ammonia and hydrogen sulfide from flushing manure sewage. Background Art

[0002] Flushing manure sewage is a typical organic wastewater, commonly found in northern pig farms and southern pig houses with facility conditions. This kind of wastewater contains a large amount of organic substances, such as fats, proteins, and carbohydrates, as well as various microorganisms, including odor source bacteria, putrefactive bacteria, etc. Due to its special composition and properties, flushing manure sewage often produces unpleasant odors during the treatment and discharge processes. The main sources of the odors are the smells of ammonia and hydrogen sulfide, and these odors seriously affect the hygiene and quality of life of the surrounding environment, and may even cause dissatisfaction and protests from the public.

[0003] With the acceleration of the urbanization process and the change of agricultural production methods, the generation and discharge amounts of flushing manure sewage show an upward trend, and the pressure on the environment is also increasing day by day. Therefore, carrying out research on the deodorization of flushing manure sewage not only helps to improve the air quality of the surrounding environment and reduce the impact of odors on the surrounding residents, but also can protect ecological systems such as water bodies and soils, and promote the sustainable development of the ecological environment.

[0004] Currently, the deodorization methods for livestock and poultry farms include chemical methods, physical methods, and biological methods. Chemical methods have secondary pollution, physical methods have saturation, and both have relatively high costs, although the removal efficiency is fast; while biological methods have low costs, but there is a possibility of low deodorization efficiency.

[0005] Therefore, the inventor believes that how to creatively build a system for removing ammonia and hydrogen sulfide from flushing manure sewage, which can quickly deodorize, reduce the operating cost of the system, and the deodorization device built during the deodorization process is easy to assemble and transport. These are the technical problems that need to be urgently solved by those skilled in the art at present.

[0006] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0007] In view of the above technical problems, an embodiment of the present invention provides a system for removing ammonia and hydrogen sulfide from flushing manure sewage to solve the problems raised in the above background art.

[0008] The present invention provides the following technical solutions: A system for removing ammonia and hydrogen sulfide from wastewater of flushing manure with water, comprising: an air-water ratio self-absorption system built above the sewage storage tank, and a photosynthetic oxygen self-production system and a double-sided binary deodorization system built in the air-water ratio self-absorption system.

[0009] Specifically, the sewage storage tank is mainly used to store the wastewater of flushing manure with water. In the actual use process, the sewage storage tank is mostly of a cement pool structure.

[0010] Preferably, the air-water ratio self-absorption system comprises: a first cuboid frame built above the storage tank, and a white transparent film covering the surface of the first cuboid frame;

[0011] Among them, the height of the first cuboid frame should be ensured such that the ratio of the volume of the air above the wastewater of flushing manure with water in the storage tank to the volume of the wastewater of flushing manure with water is greater than 0.85; the ratio of the diagonal length of the storage tank to the depth of the wastewater of flushing manure with water is greater than 0.65.

[0012] Research has found that with the design of the above proportional relationship, the hydrogen sulfide released from the surface of the sewage in the closed system of the air-water ratio self-absorption system can be oxidized by the oxygen in the air above the sewage, and the ammonia can be absorbed by the water molecules, which can maintain the rapid removal of hydrogen sulfide and ammonia escaping from the sewage surface within 6 hours;

[0013] When the ratio is 0.85 and the capacity of the cement pool is fully utilized, due to the relatively high sewage level, the ammonia and hydrogen sulfide at the bottom can be absorbed and dissolved, and combined with the removal of ammonia and hydrogen sulfide in the space, the effect of self-absorption and rapid removal can be achieved.

[0014] However, when there is too much organic matter in the sewage and it needs to be stored for a long time exceeding 6 hours, when the oxygen in the above space is consumed and the ammonia partial pressure on the sewage surface is relatively high, exceeding the carrying capacity of the air-water ratio self-absorption system, an oxygen production system and a deodorization system need to be equipped to achieve the purpose of long-term deodorization.

[0015] Preferably, the first cuboid frame is composed of stainless steel pipes with shrinkability, which is convenient for folding, transportation and maintenance.

[0016] Preferably, the photosynthetic oxygen self-production system comprises: a photobioreactor built in the air-water ratio self-absorption system, and the wastewater of flushing manure with water filled in the photobioreactor and several chlorella floating on the wastewater of flushing manure with water;

[0017] The photobioreactor includes a second cuboid frame and a white transparent film covering the surface of the second cuboid frame; the photobioreactor is connected to the storage tank through a pipeline and a first submersible pump, and the first submersible pump pumps the sewage in the storage tank to supplement the photobioreactor; a circulation pump is installed on the edge of the storage tank, and the circulation pump promotes the circulating flow of the bubbling manure sewage in the photobioreactor through the pipeline.

[0018] Preferably, the second cuboid frame is composed of stainless steel pipes, the frame depth is 30 cm, and the length is slightly longer than the width of the cement pool for easy construction; the water level inside is 20 cm, the width is greater than or equal to one-fifth of the long side of the cement pool, and the whole frame is placed on 3-5 support bars embedded in the side of the cement pool.

[0019] Preferably, the flow rate of the circulation pump promoting the circulating flow of the bubbling manure sewage in the photobioreactor is 2-3 m / s, and the circulation pump is started once every 3 hours, each circulation lasts for 0.5 h, and it circulates only during the day;

[0020] During the cultivation of Chlorella, the ammonia nitrogen in the bubbling manure sewage in the photobioreactor is less than 50 mg / L; if the ammonia nitrogen concentration is higher than 50 mg / L, the concentration of ammonia nitrogen needs to be diluted; the ratio of the sunshine and dark cycles is 14:10, and this light-dark ratio can ensure that the production efficiency of Chlorella is greater than 0.208 g / h·m 3 。

[0021] The CO2 of Chlorella comes from the respiration of microorganisms in the sewage in the cement pool. When the COD of the sewage is greater than 200 mg / L, it provides a carbon source for the growth of algae for photosynthesis and releases oxygen into the upper space, which combines with the double-sided binary deodorization system to accelerate the removal of ammonia and hydrogen sulfide.

[0022] Preferably, the water level in the cement pool should be about 3 cm higher than the bottom of the photobioreactor, and the overall reactor is lifted by relying on the buoyancy of the sewage and the support bars. If the deodorization time is long, one-tenth of the culture solution needs to be pumped out of the photobioreactor every day for soil irrigation, and at the same time, the corresponding volume of sewage is supplemented into the photobioreactor to achieve continuous cultivation and continuous oxygen production and deodorization. The photobioreactor, cement pool sewage, Chlorella, circulation pump, etc. are assembled into a photosynthetic self-oxygen production system.

[0023] Preferably, the double-sided binary deodorization system includes a double-sided binary deodorization curtain suspended in the air-water ratio self-absorption system;

[0024] The length and height of the double-sided binary deodorization curtain are the same as the length and height of the air-water ratio self-absorption system; the double-sided binary deodorization curtain is a transparent plastic film; the upper half of both sides of the film is sprayed with a negative oxygen ion coating, and the lower half of both sides of the film is sprayed with a quantum photocatalyst coating.

[0025] Preferably, the negative oxygen ion coating contains tourmaline powder and rare earth powder, and the spraying amount is > 0.23 L per square meter; the negative ion release amount of the negative oxygen ion coating is > 2000 ions / cm 3 ; the spraying amount of the quantum photocatalyst coating is > 0.015 L per square meter; the negative ion release amount of the quantum photocatalyst coating is > 1500 ions / cm 3 .

[0026] Preferably, the double-sided dual deodorizing curtain is hung on the wide side of the air-water ratio self-absorption system and is parallel to the long side of the air-water ratio self-absorption system; the distance between the double-sided dual deodorizing curtain and the long side of the air-water ratio self-absorption system is half of the height H of the air-water ratio self-absorption system;

[0027] When the width of the storage pool is greater than the height H of the air-water ratio self-absorption system, then the width of the air-water ratio self-absorption system is greater than the height H. At this time, it is necessary to add another double-sided dual deodorizing curtain at a distance of H from the first double-sided dual deodorizing curtain, and at the same time add a horizontally arranged single-sided unit deodorizing curtain above the two double-sided dual deodorizing curtains.

[0028] Preferably, the single-sided unit deodorizing curtain is 10 cm away from the top of the air-water ratio self-absorption system; its length is two-thirds of the long side of the air-water ratio self-absorption system;

[0029] The upper surface of the single-sided unit deodorizing curtain is sprayed with quantum photocatalyst, and the lower surface of the single-sided unit deodorizing curtain is sprayed with negative oxygen ion coating; the spraying amount of the quantum photocatalyst is > 0.015 L per square meter, and the negative ion release amount is > 1500 ions / cm 3 ; the negative oxygen ion coating contains tourmaline powder and rare earth powder, the spraying amount is > 0.23 L per square meter, and the negative ion release amount is > 2000 ions / cm 3 .

[0030] In the double-sided dual deodorizing system, the negative oxygen ion coating combines with water molecules to form negative oxygen ions and hydrogen ions, and releases ions at any time; the quantum photocatalyst combines with water molecules and oxygen under light conditions to release superoxide radicals and hydrogen peroxide radicals. Under light conditions, due to the photosynthesis of chlorella to produce oxygen and the formation of water vapor, the deodorizing effect is enhanced; when there is no light, the negative oxygen ion coating combines with water molecules to form negative oxygen ions to remove odors; the above combination realizes continuous deodorization for 24 hours and enhanced deodorization effect under light.

[0031] Preferably, the minimum distance between the water level in the storage pool and the ground is 17 cm. A second submersible pump is installed near the wall below the storage pool, and its head should be 20 cm higher than the depth of the sewage. The inlet of the second submersible pump is located at the bottom, and the outlet is located 20 cm away from the opposite wall. The opening is 10 cm above the water surface and perpendicular to the opposite wall. A shower head is installed at the opening end and directly splashes on the opposite wall to increase the contact area of the gas by generating water droplets through impact.

[0032] Preferably, when the width of the pond body is greater than 5 meters, a second submersible pump is installed every 5 meters along the width direction of the storage pond to achieve the overall agitation of the sewage pond, and the agitation flow rate is such that it takes 6 hours to complete one overall agitation of the sewage.

[0033] The ammonia and hydrogen sulfide removal system for flushing manure sewage provided by the embodiment of the present invention has the following beneficial effects: The present invention has developed an ammonia and hydrogen sulfide removal system for flushing manure sewage. Based on the characteristics of the sewage and the dissolution and emission law of the odor, it combines the coating-type photocatalyst and negative ion deodorization technology, integrates the oxygen-producing ability of chlorella photosynthesis, considers the factors of light and non-light, and systematically studies the interaction relationship between various factors, so as to achieve both rapid removal and increased deodorization efficiency. Moreover, the framework structure built by this system has low cost, is easy to carry and can be reused. Brief Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of the ammonia and hydrogen sulfide removal system for flushing manure sewage of the present invention;

[0035] Figure 2 It is a schematic structural diagram of the first cuboid frame structure of the hollow water ratio self-absorption system of the present invention;

[0036] Figure 3 It is a schematic structural diagram of the hollow water ratio self-absorption system of the present invention;

[0037] Figure 4 For the present invention Figure 3 Schematic structural diagrams of each structural component;

[0038] Figure 5 It is a schematic structural diagram of the storage pond filled with sewage with a photobioreactor of the present invention. Detailed Embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0041] In response to the problems mentioned in the above background technology, the embodiment of the present invention provides an ammonia and hydrogen sulfide removal system for flushing manure sewage to solve the above technical problems, and its technical solutions are as follows:

[0042] I. The conceptual principle of the ammonia and hydrogen sulfide removal system for flushing manure sewage of the present invention is as follows:

[0043] The present invention aims to provide an in-situ all-weather closed deodorization system for removing ammonia and hydrogen sulfide from flushing manure sewage, which can be used for deodorizing sewage stored for a long time and sewage that cannot be discharged in the short term. This method has a simple structure, can deodorize continuously for 24 hours, enhances the deodorization effect under light conditions, and can quickly remove the odor escaping from the sewage. After being equipped with a submersible pump, it can achieve the purpose of removing ammonia and hydrogen sulfide from the entire water body. The specific features are as follows:

[0044] (1) Air-water ratio self-absorption system, that is, there is a certain proportional relationship between the volume of sewage and the air space in the deodorization system, forming a closed system. The ammonia and hydrogen sulfide released by the sewage can be oxidized and dissolved in a certain space. At the same time, the ammonia and hydrogen sulfide at the bottom of the sewage can also be self-dissolved due to the volume and height of the water body itself. Therefore, a suitable proportional relationship between the volume of sewage and the air space volume can remove ammonia and hydrogen sulfide in a short time and dissolve the ammonia and hydrogen sulfide released from the bottom for a long time. However, when the ammonia and hydrogen sulfide released by the sewage exceed the carrying capacity of the space, a photosynthetic self-produced oxygen system and a double-sided binary deodorization system need to be established.

[0045] (2) Photosynthetic self-produced oxygen system, using sewage as the water source and the nutrient sources of nitrogen and trace elements, using the CO2 released during the sewage storage process as the carbon source, and using the sewage surface as the bearing capacity, to establish a Chlorella vulgaris cultivation system. Under the intermittent circulation of the external circulation pump, CO2 absorption and oxygen release are achieved through photosynthesis in a closed system. The released oxygen is used for deodorization and the respiration of microorganisms in the sewage. The produced Chlorella vulgaris culture solution is used as fertilizer for agricultural planting after primary treatment. Long-term oxygen release is achieved by continuously adding sewage until the deodorization ends.

[0046] (3) Double-sided binary deodorization system, which consists of a double-sided binary deodorization curtain and a single-sided unit deodorization curtain. Taking the long side of the closed system as the length, a transparent plastic film curtain is hung down from the top. The upper half of this curtain is sprayed with a negative ion coating, and the lower half is sprayed with quantum photocatalyst, and both sides are sprayed at corresponding positions. The hanging position is determined according to the height of the closed system. The number of double-sided binary deodorization curtains is determined by the width of the closed system. When the width is relatively large, a single-sided unit deodorization curtain is arranged parallel to the top surface at a distance of 10 cm from the top between two double-sided binary deodorization curtains, that is, the light-exposed side of the curtain is sprayed with quantum photocatalyst and the other side is sprayed with a negative ion coating. Multiple double-sided binary deodorization curtains and single-sided unit deodorization curtains form a double-sided binary deodorization system. The negative ion coating can electrolyze the water molecules generated by sewage evaporation to produce hydrogen ions and hydroxyl ions. The hydrogen ions combine with ammonia, and the hydroxyl ions combine with water molecules to form negative oxygen ions, which can react with the acidic gas hydrogen sulfide and are independent of light, achieving a 24-hour deodorization effect. Quantum photocatalyst requires sunlight irradiation and combines with the oxygen released by Chlorella vulgaris to form free radicals, enhancing the deodorization effect.

[0047] (4) At the same time, the framework of the air-water ratio self-absorption system is composed of shrinkable stainless steel pipes, which can shrink in both horizontal and vertical directions and is covered with a film on the outside; the double-sided binary deodorization system consists of transparent film curtains and has shrinkability; the width and length of the photobioreactor in the photosynthetic self-produced oxygen system do not have shrinkability; therefore, the volume of the overall deodorization system after shrinking is the volume of the photobioreactor, which can achieve integral handling and repeated use; for larger photobioreactors, they need to be constructed by splicing, which is also convenient for disassembly and transportation.

[0048] II. Specific implementation cases:

[0049] Taking a cement pool with a length of 10 meters, a width of 5 meters, and a depth of 2 meters as an example, the highest water level of the sewage in the cement pool is 1.73 meters, the sewage COD is 300 mg / L, ammonia nitrogen is 500 mg / L, the ammonia gas content is 130 mg / m 3 , and the hydrogen sulfide content is 80 mg / m 3 .

[0050] Construct an overall deodorization system above the cement pool. Among them, the air-water ratio self-absorption system has a length L of 10.5 meters, a width W of 5.5 meters, and a height H of 1.5 meters. The space volume is 102 [10.5×5.5×(1.5 + 0.27)] cubic meters, and the sewage volume is 86.5 cubic meters. The ratio of the two is 1.18, which is greater than 0.85, and the ratio of the diagonal to the sewage height is 6.57, which is greater than 0.65, meeting the air-water ratio requirements. The framework is composed of stainless steel shrinkable pipes, and the outside of the framework is covered with a transparent film. The ammonia gas content drops to the range of 1.1 - 4.3 mg / m 3 in 6 hours, and the hydrogen sulfide content drops to the range of 0.6 - 6.1 mg / m 3 . The deodorization in the closed system can be maintained for 6 hours. After 6 hours, the ammonia gas content reaches 74 mg / m 3 , and the hydrogen sulfide rises to 79 mg / m 3 . It is necessary to establish a photosynthetic self-produced oxygen system and a double-sided binary deodorization system to eliminate odors.

[0051] The photobioreactor in the photosynthetic self-produced oxygen system is built with stainless steel pipes and is spliced by 2 subtype photobioreactors. It is fixed on the edge of the cement pool. The entire photobioreactor has a length of 5 meters, a width of 2 meters, and a depth of 0.3 meters. The water level of the chlorella culture solution is 0.2 meters, and a plastic film is laid inside. The bottom is in contact with the sewage in the cement pool. A total of 2 cubic meters of water is filled, including 0.2 cubic meters of sewage and 1.8 cubic meters of tap water. Chlorella is inoculated to make the production efficiency of algae greater than 0.208 g / h·m 3 , and the energy source of the circulation pump can be electric energy or solar energy. Driven by an external circulation pump, the flow rate is 2 - 3 m / s, and the circulation pump is started once every 3 hours, each circulation lasting 0.5 h, and the circulation occurs during the day.

[0052] In the double-sided dual deodorization system, at a distance of 0.75 m from the long side of the self-absorption system, a double-sided dual deodorization curtain 1 with a length of 10 m and a height of 1.5 m is suspended. At a distance of 1.5 m from curtain 1, another double-sided dual deodorization curtain 2 is suspended. Since the width is 5 m, a total of 3 double-sided dual deodorization curtains and 2 single-sided unit deodorization curtains are required. The single-sided unit deodorization curtain is 10 cm from the top surface, with a length of 7 m and a width of 1.5 m. Under the combined action of negative oxygen ions and quantum photocatalysis, and under the photosynthesis of chlorella, the escaped odor gas can be removed by negative oxygen ions and free radicals. Especially under light conditions, the ammonia and hydrogen sulfide contents are reduced to 2.16 and 0.24 mg / m respectively within 1 h 3 , and the escaped odor gas can be removed more quickly.

[0053] When it is necessary to remove the odor gas in the sewage for a long time, under the action of a submersible pump, a total circulation of the sewage in the tank body can be completed within 6 h, and the removal effect can be achieved within 24 h. The ammonia and hydrogen sulfide contents are 0.11 and 0.18 mg / m respectively 3 . After the removal is completed, the above overall system is recycled to the size of a photobioreactor, which is composed of 2 subtype photobioreactors with a length of 2.5 m and a width of 1 m spliced together, facilitating transportation and reuse.

[0054] According to the above system, when the COD of the sewage in the cement tank is 1000 mg / L, the ammonia content is 288 mg / m 3 , and the hydrogen sulfide content is 152 mg / m 3 , it takes 48 h, and the ammonia and hydrogen sulfide contents are 2.31 and 0.24 mg / m respectively 3 . When the COD of the sewage in the cement tank is 2000 mg / L, the ammonia content is 546 mg / m 3 , and the hydrogen sulfide content is 189 mg / m 3 , it takes 72 h to remove, and the ammonia and hydrogen sulfide contents are 9.88 and 8.89 mg / m respectively 3 .

[0055] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A system for removing ammonia and hydrogen sulfide from flushing manure wastewater, characterized in that Including: An air-water ratio self-absorption system built above the sewage storage tank, and a photosynthetic self-produced oxygen system and a double-sided dual deodorization system built in the air-water ratio self-absorption system.

2. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 1, wherein The air-water ratio self-absorption system includes: a first cuboid frame built above the storage tank, and a white transparent film covering the surface of the first cuboid frame; Among them, the height of the first cuboid frame should be ensured that the ratio of the air volume above the bubble manure sewage in the storage tank to the volume of the bubble manure sewage is greater than 0.85; the ratio of the diagonal length of the storage tank to the depth of the bubble manure sewage is greater than 0.

65.

3. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 1, wherein The photosynthetic self-produced oxygen system includes: a photobioreactor built in the air-water ratio self-absorption system, and the bubble manure sewage filled in the photobioreactor and several chlorella floating in the bubble manure sewage; The photobioreactor includes a second cuboid frame, and a white transparent film covering the surface of the second cuboid frame; the photobioreactor is connected to the storage tank through a pipeline and a first submersible pump, and the first submersible pump pumps the sewage in the storage tank to supplement the photobioreactor; a circulation pump is installed on the edge of the storage tank, and the circulation pump drives the circulation of the bubble manure sewage in the photobioreactor through the pipeline.

4. The ammonia and hydrogen sulfide removal system for flush manure sewage according to claim 3, wherein, The flow rate of the circulation pump driving the circulation of the bubble manure sewage in the photobioreactor is 2-3 m / s, and it is ensured that the circulation pump is started once every 3 hours, each circulation for 0.5 h, and only circulates during the day; During the cultivation of Chlorella, the ammonia nitrogen in the bubble manure sewage in the photobioreactor is less than 50 mg / L; if the ammonia nitrogen concentration is higher than 50 mg / L, concentration dilution of ammonia nitrogen is required; the ratio of the sunshine and dark cycles is 14:10, and this light-dark ratio can ensure that the production efficiency of Chlorella is greater than 0.208 g / h·m 3 .

5. The ammonia and hydrogen sulfide removal system for flushing manure wastewater according to claim 1, wherein The double-sided dual deodorization system includes a double-sided dual deodorization curtain suspended in the air-water ratio self-absorption system; The length and height of the double-sided dual deodorization curtain are the same as the length and height of the air-water ratio self-absorption system; the double-sided dual deodorization curtain is a transparent plastic film; the upper half of both sides of the film is sprayed with a negative oxygen ion coating, and the lower half of both sides of the film is sprayed with a quantum photocatalyst coating.

6. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 5, wherein, The negative oxygen ion coating contains tourmaline powder and rare earth powder, and the spraying amount is > 0.23 L per square meter; the negative ion release amount of the negative oxygen ion coating is > 2000 ions / cm 3 ; the spraying amount of the quantum photocatalyst coating is > 0.015 L per square meter; the negative ion release amount of the quantum photocatalyst coating is > 1500 ions / cm 3 .

7. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 5, characterized in that, The double-sided dual deodorization curtain is suspended on the wide side of the air-water ratio self-absorption system and is parallel to the long side of the air-water ratio self-absorption system; The distance between the double-sided dual deodorization curtain and the long side of the air-water ratio self-absorption system is half of the height H of the air-water ratio self-absorption system; When the width of the storage tank is greater than the height H of the air-water ratio self-absorption system, the width of the air-water ratio self-absorption system is greater than the height H. At this time, another double-sided dual deodorization curtain needs to be added at a distance of H length from the first double-sided dual deodorization curtain, and a horizontally arranged single-sided unit deodorization curtain is added above the two double-sided dual deodorization curtains.

8. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 7, characterized in that, The single-sided unit deodorization curtain is 10 cm away from the top of the air-water ratio self-absorption system; its length is two-thirds of the long side of the air-water ratio self-absorption system; The upper surface of the single-sided unit deodorizing curtain is sprayed with quantum photocatalyst, and the lower surface of the single-sided unit deodorizing curtain is sprayed with a negative oxygen ion coating; the spraying amount of the quantum photocatalyst is > 0.015 L per square meter, and the negative ion release amount is > 1500 ions / cm 3 ; the negative oxygen ion coating contains tourmaline powder and rare earth powder, the spraying amount is > 0.23 L per square meter, and the negative ion release amount is > 2000 ions / cm 3 .

9. The ammonia and hydrogen sulfide removal system for flush manure wastewater according to claim 1, wherein The minimum distance between the water level of the storage tank and the ground is 17 cm. A second submersible pump is installed near the wall below the storage tank, and its lift should be 20 cm higher than the sewage depth. The inlet of the second submersible pump is at the bottom, and the outlet is 20 cm away from the opposite wall. The opening is 10 cm above the water surface and perpendicular to the opposite wall. A shower-type nozzle is installed at the opening end and directly splashes on the opposite wall to increase the contact area of the gas by generating water droplets through impact.

10. The ammonia and hydrogen sulfide removal system for flushing manure sewage according to claim 9, characterized in that When the width of the pool body is greater than 5 meters, a second submersible pump is installed every 5 meters along the width direction of the storage pool to achieve the overall agitation of the sewage pool, and the agitation flow rate is such that the whole agitation is completed in 6 hours.

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