Aquaculture water body nitrification treatment device
By using photocatalytic particles and oxidants in aquaculture water, the secondary pollution and high cost of chemical nitrification treatment in traditional aquaculture have been solved, achieving efficient and environmentally friendly water purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN EWATER AQUACULTURE EQUIP TECHLTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional aquaculture uses chemical agents for nitrification, which results in secondary pollution and high costs, and is also time-consuming, thus limiting the development of recirculating aquaculture.
The photocatalytic method involves filling the reaction chamber with photocatalytic particles and using an oxidant. The strong oxidizing hydroxyl radicals generated by the light source decompose ammonia nitrogen and nitrite. Combined with an oxygenation device and a reflective membrane, the purification efficiency is improved.
It achieves efficient water purification, avoids secondary pollution caused by chemical residues, reduces costs, and improves purification efficiency.
Smart Images
Figure CN224530673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to a device for nitrification treatment of aquaculture water. Background Technology
[0002] In aquaculture, nitrification is typically used to decompose ammonia nitrogen in the water, thereby purifying the water. Traditional aquaculture generally uses chemical agents or nitrifying bacteria for nitrification. This method easily leads to chemical residues in the water, causing secondary pollution. These residual chemicals can remain in the animals' bodies, affecting their development and harming their health. Furthermore, this method is time-consuming and costly, greatly limiting the development of recirculating aquaculture systems. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a nitrification treatment device for aquaculture water, which uses photocatalysis to purify the water, achieving high purification efficiency without causing secondary pollution.
[0004] A nitrification treatment device for aquaculture water according to an embodiment of the present invention includes: a reaction chamber having a reaction cavity and an inlet channel and an outlet channel connected to the reaction cavity, wherein the reaction cavity is filled with photocatalytic particles; an oxidant addition device disposed on one side of the reaction chamber and connected to the reaction cavity; and a first light source disposed on the side wall of the reaction chamber and arranged facing the reaction cavity, wherein the side wall of the reaction chamber has a first mounting cavity, the side wall of the first mounting cavity near the reaction cavity has a transparent first light-emitting part, and the first light source is installed in the first mounting cavity and arranged facing the first light-emitting part.
[0005] The aquaculture water nitrification treatment device according to the embodiments of this utility model has at least the following beneficial effects:
[0006] In the aquaculture water nitrification treatment device of this utility model embodiment, the first light source is set inside the side wall of the reaction chamber and facing into the reaction chamber. The reaction chamber is filled with photocatalytic particles, and the oxidant addition device can deliver oxidant into the reaction chamber. When in use, the aquaculture wastewater is input into the reaction chamber through the inlet channel and passes through the photocatalytic particles. The strong oxidizing hydroxyl radicals generated by the photocatalytic particles under the action of light can decompose the ammonia nitrogen and nitrite in the wastewater under the synergistic effect of the oxidant, and sterilize and disinfect the wastewater. Thus, the water is purified by using photocatalysis, which has high purification efficiency and will not leave harmful chemical substances in the water to cause secondary pollution.
[0007] According to some embodiments of the present invention, the first light source includes a plurality of first lamp beads arranged at intervals in the first mounting cavity, the number of first light-emitting parts is plurality and corresponds one-to-one with the first lamp beads, each of the first light-emitting parts protrudes from the side wall of the first mounting cavity near the reaction cavity into the reaction cavity, and each of the first lamp beads is embedded in the corresponding first light-emitting part and faces the reaction cavity.
[0008] According to some embodiments of the present invention, the first light source is a first light strip, and there are multiple first light sources. On each first light strip, all the first lamp beads are arranged sequentially along the length direction of the first light strip; the first light strip is arranged along the circumference of the reaction chamber, and all the first light strips are arranged sequentially at intervals along the up-down direction; or the first light strip is arranged along the up-down direction, and all the first light strips are arranged sequentially at intervals along the circumference of the reaction chamber.
[0009] According to some embodiments of the present invention, the inner peripheral wall of the reaction chamber is provided with a first reflective film.
[0010] According to some embodiments of the present invention, the outer peripheral wall of the first mounting cavity is provided with an air inlet and an air outlet communicating with the first mounting cavity; a first row of fans is provided at the air inlet, and the air outlet of the first row of fans is connected to the first mounting cavity; and / or a second row of fans is provided at the air outlet, and the air inlet of the second row of fans is connected to the first mounting cavity.
[0011] According to some embodiments of the present invention, the water inlet channel includes a first water inlet pipe and a second water inlet pipe. The first water inlet pipe is arranged horizontally above the reaction chamber, and the second water inlet pipe is connected to the first water inlet pipe and extends downward into the reaction chamber. The lower end of the second water inlet pipe is close to the bottom of the reaction chamber. The water outlet channel is located above the reaction chamber and is connected to the reaction chamber.
[0012] According to some embodiments of the present invention, a second mounting cavity is provided on the side wall of the second water inlet pipe, which is arranged circumferentially along the second water pipe. A second reflective film and a transparent second light-emitting part are provided on the outer peripheral wall of the second mounting cavity. A second light source is installed in the second mounting cavity and is arranged toward the second light-emitting part.
[0013] According to some embodiments of the present invention, an oxygenation device is provided at the bottom of the reaction chamber, which can input oxygen into the reaction chamber and drive the photocatalytic particles to move within the reaction chamber; the photocatalytic particles include a particle body and a photocatalytic layer attached to the outer surface of the particle body, and the particle body is made of polymer material.
[0014] According to some embodiments of this utility model, it also includes a control system and a detection device. The detection device is disposed in the reaction chamber and extends into the reaction cavity. The detection device is used to detect the water quality in the reaction cavity. The control system is electrically connected to the detection device, the oxygenation device, and the oxidant addition device. The control system can control the operation of the oxygenation device and the oxidant addition device according to the detection information fed back by the detection device.
[0015] According to some embodiments of this utility model, the reaction chamber is further provided with a drainage chamber, which is located above the reaction chamber and communicates with it. A filter screen for filtering foam is provided between the reaction chamber and the drainage chamber. The water inlet channel is located below the filter screen and communicates with the reaction chamber, and the water outlet channel is located above the filter screen and communicates with the drainage chamber. A cleaning device is also provided above the reaction chamber. The cleaning device includes a drive mechanism and a brush. The brush is located below the filter screen and contacts the lower surface of the filter screen. The drive mechanism is located above the reaction chamber. The output rod of the drive mechanism passes downward through the filter screen and is connected to the brush. The drive mechanism can drive the brush to rotate and clean the lower surface of the filter screen.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the nitrification treatment device for aquaculture water according to an embodiment of the present invention;
[0019] Figure 2 This is an internal schematic diagram of the nitrification treatment device for aquaculture water in an embodiment of this utility model;
[0020] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.
[0021] Figure label:
[0022] Reaction chamber 100, reaction cavity 110, water inlet channel 120, first water inlet pipe 121, second water inlet pipe 122, water outlet channel 130, first mounting cavity 140, first light-emitting part 141, air inlet 142, second exhaust fan 150, drainage cavity 160, conical cavity 170, and air outlet 171;
[0023] Oxidizing agent addition device 200;
[0024] Cleaning device 300, drive mechanism 310;
[0025] Oxygenation device 400. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0030] Reference Figures 1 to 3 This utility model provides an embodiment of a nitrification treatment device for aquaculture water, including a reaction chamber 100, an oxidant addition device 200, and a first light source. The reaction chamber 100 has a reaction cavity 110 and an inlet channel 120 and an outlet channel 130 connected to the reaction cavity 110. The reaction cavity 110 is filled with photocatalytic particles. The oxidant addition device 200 is located on one side of the reaction chamber 100 and connected to the reaction cavity 110. The first light source is located on the side wall of the reaction chamber 100 and faces the reaction cavity 110. A first mounting cavity 140 is formed in the side wall of the reaction chamber 100. A transparent first light-emitting part 141 is provided on the side wall of the first mounting cavity 140 near the reaction cavity 110. The first light source is installed in the first mounting cavity 140 and faces the first light-emitting part 141.
[0031] In the aquaculture water nitrification treatment device of this utility model embodiment, the first light source is set inside the side wall of the reaction chamber 100 and facing the reaction cavity 110. The reaction cavity 110 is filled with photocatalytic particles, and the oxidant addition device 200 can deliver oxidant into the reaction cavity 110. When the aquaculture wastewater is input into the reaction cavity 110 through the water inlet channel 120 and passes through the photocatalytic particles, the strong oxidizing hydroxyl radicals generated by the photocatalytic particles under the action of light can decompose the ammonia nitrogen and nitrite in the wastewater under the synergistic effect of the oxidant, and sterilize and disinfect the wastewater. Thus, by using photocatalysis to nitrify the water, the ammonia nitrogen in the water is removed and the water is purified. The purification efficiency is high and no harmful chemical substances are left in the water, which will cause secondary pollution to the water.
[0032] Furthermore, in the aquaculture water nitrification treatment device of this utility model embodiment, by opening a first mounting cavity 140 in the side wall of the reaction chamber 100, and providing a transparent first light-emitting part 141 on the side wall of the first mounting cavity 140 near the reaction chamber 110, an installation space can be provided for the first light source. The first light source is installed in the first mounting cavity 140 and arranged facing the first light-emitting part 141. This structure can not only provide light to the reaction chamber 110, but also protect the first light source. In addition, the setting of the first mounting cavity 140 can facilitate the installation of the first light source, while also avoiding the first light source occupying the space inside the reaction chamber 110, so that more aquaculture wastewater can be introduced into the reaction chamber 110. Moreover, the first mounting cavity 140 is arranged around the outer periphery of the reaction chamber 110, so that the first light source can be set on the outer periphery of the first mounting cavity 140, thereby providing light to the reaction chamber 110 more efficiently and directly, which is beneficial to improving the water purification efficiency.
[0033] Reference Figure 2 and Figure 3 In some embodiments, the first light source includes a plurality of first lamp beads arranged at intervals in the first mounting cavity 140. The number of first light-emitting parts 141 is multiple and corresponds one-to-one with the first lamp beads. Each first light-emitting part 141 protrudes from the side wall of the first mounting cavity 140 near the reaction cavity 110 into the reaction cavity 110. Each first lamp bead is embedded in the corresponding first light-emitting part 141 and faces the reaction cavity 110.
[0034] In the above structure, by protruding the first light-emitting part 141 from the side wall of the first mounting cavity 140 near the reaction cavity 110 into the reaction cavity 110, the LED can be embedded in the first light-emitting part 141 and extend into the reaction cavity 110. This allows the light emitted by the LED to completely illuminate the reaction cavity 110, which helps to improve light utilization and thus enhance water purification efficiency. Furthermore, by arranging multiple first LEDs within the first mounting cavity 140, which surrounds the outer periphery of the reaction cavity 110, the multiple first LEDs can be distributed around the outer periphery of the reaction cavity 110 and arranged towards the reaction cavity 110, thereby significantly improving light utilization and further enhancing water purification efficiency.
[0035] Reference Figure 2 and Figure 3 In some embodiments, the first light source is a first light strip, and there are multiple first light sources. On each first light strip, all the first LED beads are arranged sequentially along the length of the first light strip, which facilitates the installation of the first light source, and multiple first LED beads can be installed for each light strip. The first light strip is arranged along the circumference of the reaction chamber 110, and all the first light strips are arranged sequentially at intervals in the vertical direction; or the first light strip is arranged in the vertical direction, and all the first light strips are arranged sequentially at intervals along the circumference of the reaction chamber 110, so that all the LED beads can be distributed on the entire peripheral wall of the reaction chamber 110, thereby greatly improving the light utilization rate and further improving the water purification efficiency.
[0036] In some embodiments, the inner peripheral wall of the reaction chamber 110 is provided with a first reflective film. Thus, when the light emitted by the first lamp bead shines on the inner wall of the opposite side of the reaction chamber 110, the first reflective film can reflect the light back into the reaction chamber 110, thereby further improving the light utilization rate and further enhancing the water purification efficiency and water purification effect.
[0037] Reference Figure 1 and Figure 2 In some embodiments, the outer peripheral wall of the first mounting cavity 140 is provided with an air inlet 142 and an air outlet communicating with the first mounting cavity 140. A second row fan 150 is provided at the air outlet, and the air inlet of the second row fan 150 is connected to the first mounting cavity 140. This allows external cold air to be input into the first mounting cavity 140 from the air inlet 142 and discharged from the air outlet. When the cold air flows through the first light source, it can carry away the heat emitted by the first light source and cool the first light source, thereby protecting the first light source, extending its service life, saving energy, and reducing the operating cost of the aquaculture water nitrification treatment device.
[0038] It is understandable that, in order to introduce cold air into the first mounting cavity 140 to cool the first light source, in addition to setting a second row of fans 150 at the air outlet, a first row of fans can also be set at the air inlet 142, with the air outlet of the first row of fans connected to the first mounting cavity 140. This utility model does not specifically limit this approach. Alternatively, a first row of fans can be set at the air inlet 142, while a second row of fans 150 is set at the air outlet; this utility model also does not specifically limit this approach.
[0039] Reference Figure 2 In some embodiments, the water inlet channel 120 includes a first water inlet pipe 121 and a second water inlet pipe 122. The first water inlet pipe 121 is arranged horizontally above the reaction chamber 100, and the second water inlet pipe 122 is connected to the first water inlet pipe 121 and extends downward into the reaction chamber 110. The lower end of the second water inlet pipe 122 is near the bottom of the reaction chamber 110. The water outlet channel 130 is located above the reaction chamber 100 and is connected to the reaction chamber 110. Thus, aquaculture wastewater can be input from the first water inlet pipe 121 and input to the bottom of the reaction chamber 110 through the second water inlet pipe 122. The wastewater accumulates from bottom to top in the reaction chamber 110 and is finally discharged from the water outlet channel 130. This structure can prolong the residence time of the wastewater in the reaction chamber 110, thereby prolonging the purification time of the wastewater in the reaction chamber 110, which is beneficial to further improve the water purification effect.
[0040] In some embodiments, a second mounting cavity is formed on the side wall of the second water inlet pipe 122, arranged circumferentially along the second water pipe. A second reflective film and a transparent second light-emitting portion are provided on the outer peripheral wall of the second mounting cavity. A second light source is installed inside the second mounting cavity, facing the second light-emitting portion. Thus, a second light source can be added to the outer periphery of the second water inlet pipe 122. The light emitted by the second light source can also illuminate the photocatalytic particles in the reaction chamber 110, thereby generating highly oxidizing hydroxyl radicals, which further enhances the photocatalytic effect and improves water purification efficiency and effectiveness. Furthermore, by providing a second reflective film on the outer peripheral wall of the second mounting cavity, the light from the first light source illuminating the second water inlet pipe 122 can be reflected back onto the photocatalytic particles in the reaction chamber 110, thereby greatly improving light utilization.
[0041] It is understood that the second light source can be configured with the same structure as the first light source. Specifically, in some embodiments, the second light source is a second light strip, and there are multiple second light sources. Each second light strip has multiple second LED beads, and all the second LED beads are arranged sequentially along the length of the second light strip. This facilitates the installation of the second light source, and multiple second LED beads can be installed for each second light strip. The second light strip is arranged circumferentially along the second water inlet pipe 122, and all the first light strips are arranged sequentially at intervals in the vertical direction; or the first light strips are arranged vertically, and all the first light strips are arranged sequentially at intervals along the circumference of the second light strip. This allows all the second LED beads to be distributed across the entire periphery of the second water inlet pipe 122, thereby greatly improving light utilization and further enhancing water purification efficiency.
[0042] Reference Figure 2 In some embodiments, an oxygenation device 400 is provided at the bottom of the reaction chamber 100. The oxygenation device 400 can input oxygen into the reaction chamber 110 and drive the photocatalytic particles to move within the reaction chamber 110. This can agitate the wastewater in the reaction chamber 110 and cause the photocatalytic particles to suspend and tumble, preventing the photocatalytic particles from accumulating within the reaction chamber 110. This can increase the light irradiation area on the surface of the photocatalytic particles and the contact area between the photocatalytic particles and the wastewater, thereby greatly improving the water purification efficiency.
[0043] It is understood that the oxygenation device 400 can specifically be an aeration device, such as an aeration disc, and this utility model does not specifically limit it.
[0044] In some embodiments, the photocatalytic particle includes a particle body and a photocatalytic layer attached to the outer surface of the particle body. The particle body is made of a polymer material, thereby allowing the photocatalytic particle to be suspended within the reaction chamber 110 and avoiding accumulation. Specifically, the density of the particle body is 0.95-0.98 g / cm³. 3 Specific surface area ≥ 500 m² 2 / g.
[0045] It is understood that, in some embodiments, the photocatalytic layer on the surface of the particle body can specifically be a TiO2 photocatalyst coating.
[0046] In some embodiments, the aquaculture water nitrification treatment device is further equipped with a control system and a detection device. The detection device is located in the reaction chamber 100 and extends into the reaction cavity 110. The detection device is used to detect the water quality in the reaction cavity 110. The control system is electrically connected to the detection device, the aeration device 400, and the oxidant addition device 200. The control system can control the operation of the aeration device 400 and the oxidant addition device 200 according to the detection information fed back by the detection device. Thus, the operation of the aeration device 400 and the oxidant addition device 200 can be adjusted according to the water quality of the effluent in the reaction cavity 110. For example, when the detection device detects the effluent, the control system can adjust the operation of the aeration device 400 and the oxidant addition device 200 according to the water quality of the effluent in the reaction cavity 110. When the device detects that the effluent quality in the reaction chamber 110 is lower than the preset standard, the control system can control the aeration device 400 to increase the aeration power and control the oxidant addition device 200 to increase the amount or rate of oxidant addition, thereby increasing the purification level of the water. When the detection device detects that the effluent quality in the reaction chamber 110 is higher than the preset standard, the control system can control the aeration device 400 to decrease the aeration power and control the oxidant addition device 200 to decrease the amount or rate of oxidant addition, thereby realizing real-time data acquisition and linkage control of the aeration device 400 and the oxidant addition device 200.
[0047] It is understood that the detection device can detect the water quality of the tailwater in the reaction chamber 110. Specifically, the detection device may include a sensor for detecting the salinity of the water, a sensor for detecting the temperature of the water, a sensor for detecting the pH value of the water, etc. This utility model does not make specific limitations in this regard.
[0048] It is understood that in some embodiments, a level sensor for detecting the water level in the reaction chamber 110 and a flow rate sensor for detecting the water flow velocity are also included. A control valve for controlling the amount of tailwater input is provided at the water inlet channel 120. The level sensor, flow rate sensor and control valve are all electrically connected to the control system. The control system can control the operation of the control valve based on the information fed back by the level sensor and flow rate sensor, thereby adjusting the input flow rate of tailwater at the water inlet channel 120 in real time.
[0049] Reference Figure 2In some embodiments, the reaction chamber 100 is further provided with a drainage chamber 160, which is located above and connected to the reaction chamber 110. A filter screen for filtering foam is provided between the reaction chamber 110 and the drainage chamber 160. The reaction chamber 100 is also provided with a sewage discharge channel connected to the drainage chamber 160. A cleaning device 300 is also provided above the reaction chamber 100. The cleaning device 300 includes a drive mechanism 310 and a brush. The brush is located below the filter screen and contacts the lower surface of the filter screen. The drive mechanism 310 is located above the reaction chamber 100. The output rod of the drive mechanism 310 passes downward through the filter screen and is connected to the brush. The drive mechanism 310 can drive the brush to rotate and clean the lower surface of the filter screen, thereby cleaning the filter screen and preventing it from clogging. The foam generated by the flow of tailwater in the reaction chamber 110 can flow through the filter screen into the drainage chamber 160 and be discharged from the sewage discharge channel.
[0050] Reference Figure 2 In some embodiments, the bottom of the reaction chamber 110 is provided with a conical cavity 170 that is larger at the top and smaller at the bottom, and the bottom of the reaction chamber 100 is provided with an exhaust port 171 that communicates with the conical cavity 170, thereby facilitating the drainage of dirt accumulated in the reaction chamber 110.
[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A nitrification treatment device for aquaculture water, characterized in that, include: The reaction chamber (100) has a reaction cavity (110) and a water inlet channel (120) and a water outlet channel (130) connected to the reaction cavity (110), and the reaction cavity (110) is filled with photocatalytic particles; An oxidant adding device (200) is provided on one side of the reaction chamber (100) and connected to the reaction cavity (110); The first light source is disposed on the side wall of the reaction chamber (100) and arranged facing the reaction cavity (110). The reaction chamber (100) has a first mounting cavity (140) on its side wall. The first mounting cavity (140) has a transparent first light-emitting part (141) on its side wall near the reaction chamber (110). The first light source is installed in the first mounting cavity (140) and is positioned toward the first light-emitting part (141).
2. The aquaculture water nitrification treatment device according to claim 1, characterized in that, The first light source includes a plurality of first lamp beads arranged at intervals in the first mounting cavity (140). The number of first light-emitting parts (141) is plurality of and corresponds one-to-one with the first lamp beads. Each first light-emitting part (141) protrudes from the side wall of the first mounting cavity (140) near the reaction cavity (110) into the reaction cavity (110). Each first lamp bead is embedded in the corresponding first light-emitting part (141) and faces the reaction cavity (110).
3. The aquaculture water nitrification treatment device according to claim 2, characterized in that, The first light source is a first light strip, and there are multiple first light sources. On each first light strip, all the first LED beads are arranged sequentially along the length of the first light strip. The first light strip is arranged along the circumference of the reaction chamber (110), and all the first light strips are arranged at intervals in the vertical direction. Alternatively, the first light strip can be arranged in the vertical direction, and all the first light strips can be arranged sequentially at intervals along the circumference of the reaction chamber (110).
4. The aquaculture water nitrification treatment device according to claim 2, characterized in that, The inner peripheral wall of the reaction chamber (110) is provided with a first reflective film.
5. The aquaculture water nitrification treatment device according to claim 1, characterized in that, The outer peripheral wall of the first mounting cavity (140) is provided with an air inlet (142) and an air outlet that are connected to the first mounting cavity (140); A first row of fans is provided at the air inlet (142), and the air outlet of the first row of fans is connected to the first mounting cavity (140); And / or a second row of fans (150) is provided at the air outlet, and the air inlet of the second row of fans (150) is connected to the first mounting cavity (140).
6. The aquaculture water nitrification treatment device according to claim 1, characterized in that, The water inlet channel (120) includes a first water inlet pipe (121) and a second water inlet pipe (122). The first water inlet pipe (121) is arranged in the horizontal direction above the reaction chamber (100). The second water inlet pipe (122) is connected to the first water inlet pipe (121) and extends downward into the reaction chamber (110). The lower end of the second water inlet pipe (122) is close to the bottom of the reaction chamber (110). The water outlet channel (130) is located above the reaction chamber (100) and is connected to the reaction cavity (110).
7. The aquaculture water nitrification treatment device according to claim 6, characterized in that, The second water inlet pipe (122) has a second mounting cavity arranged circumferentially along the side wall of the second water inlet pipe. The outer peripheral wall of the second mounting cavity is provided with a second reflective film and a transparent second light-emitting part. A second light source is installed in the second mounting cavity facing the second light-emitting part.
8. The aquaculture water nitrification treatment device according to claim 1, characterized in that, An oxygenation device (400) is provided at the bottom of the reaction chamber (100). The oxygenation device (400) can input oxygen into the reaction chamber (110) and drive the photocatalytic particles to move in the reaction chamber (110). The photocatalytic particle includes a particle body and a photocatalytic layer attached to the outer surface of the particle body, wherein the particle body is made of a polymer material.
9. The aquaculture water nitrification treatment device according to claim 8, characterized in that, It also includes a control system and a detection device. The detection device is located in the reaction chamber (100) and extends into the reaction cavity (110). The detection device is used to detect the water quality in the reaction cavity (110). The control system is electrically connected to the detection device, the oxygenation device (400), and the oxidant addition device (200). The control system can control the operation of the oxygenation device (400) and the oxidant addition device (200) based on the detection information fed back by the detection device.
10. The aquaculture water nitrification treatment device according to claim 1, characterized in that, The reaction chamber (100) is also provided with a drainage chamber (160). The drainage chamber (160) is located above the reaction chamber (110) and is connected to the drainage chamber (160). A filter screen for filtering foam is provided between the reaction chamber (110) and the drainage chamber (160). The water inlet channel (120) is located below the filter screen and is connected to the reaction chamber (110). The water outlet channel (130) is located above the filter screen and is connected to the drainage chamber (160). A cleaning device (300) is also provided above the reaction chamber (100). The cleaning device (300) includes a drive mechanism (310) and a brush. The brush is located below the filter screen and contacts the lower surface of the filter screen. The drive mechanism (310) is located above the reaction chamber (100). The output rod of the drive mechanism (310) passes downward through the filter screen and is connected to the brush. The drive mechanism (310) can drive the brush to rotate and clean the lower surface of the filter screen.