Device and method for treating aquaculture tail water by bacteria-algae combination

Abstract

The application belongs to the technical field of tail water treatment, and discloses a device and method for treating aquaculture tail water by combining bacteria and algae, which comprises a treatment box, further comprises: a bacteria and algae storage assembly installed at the top end of the treatment box, a motor for driving the bacteria and algae storage assembly arranged at the top of the treatment box; a mixing assembly fixed to the bottom of the bacteria and algae storage assembly; a material injection assembly installed at the bottom of the bacteria and algae storage assembly; and a swing assembly fixed to the bottom of the material injection assembly. The tail water at the upper end of the treatment box is sucked by the rotation of the circulating pipe and sprayed at the lower end of the treatment box through the S-shaped guide pipe, so that the water in the treatment box flows up and down in a circulating manner, the dead zone or sedimentation phenomenon of the tail water in the treatment box is avoided, the overall treatment effect of the tail water is affected, and the viscous substances in the tail water can also avoid blocking the stirring paddle and the aeration head.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a device and method for treating aquaculture wastewater using a combination of bacteria and algae. Background Technology

[0002] The combined microbial-algae treatment of aquaculture wastewater is a technology that utilizes the synergistic effects of microorganisms (bacteria) and algae to purify aquaculture wastewater. This technology combines the decomposition capabilities of microorganisms with the photosynthetic characteristics of algae, effectively removing pollutants such as organic matter, nitrogen, and phosphorus from the water while improving water quality. It is mainly suitable for treating wastewater from fish, shrimp, and shellfish aquaculture. Heterotrophic bacteria (such as Bacillus subtilis and Pseudomonas) can decompose organic matter (such as feed residue and excrement) in the wastewater, converting it into carbon dioxide, water, and inorganic salts, thereby reducing chemical oxygen demand (COD) and biochemical oxygen demand (BOD) and mitigating water pollution. Nitrifying bacteria convert ammonia nitrogen into nitrite, while denitrifying bacteria convert nitrite into harmless nitrogen gas, reducing the nitrogen content in the water.

[0003] In the process of treating aquaculture wastewater using the combined bacteria and algae technology, the wastewater usually needs to be circulated to ensure sufficient contact between bacteria / algae and pollutants in the wastewater, thereby improving treatment efficiency. Existing wastewater treatment methods typically use mechanical stirring or aeration devices to circulate the wastewater. However, unreasonable distribution and height of the stirring paddles or insufficient power can lead to uneven mixing of the water, causing some areas to become "dead zones" due to insufficient stirring, thus affecting the overall treatment effect. If the layout of the aeration heads is too concentrated or sparse, it may result in some areas having excessively high or low dissolved oxygen concentrations. Uneven aeration can affect the distribution and metabolic activities of bacteria and algae. At the same time, the wastewater may contain a large amount of viscous substances, which will adhere to the surface of bacteria and algae, increasing their density and hindering their suspension. The viscous substances can also cause blockage of the stirring paddles and aeration heads, further affecting the mixing effect. Therefore, a device and method for treating aquaculture wastewater using the combined bacteria and algae technology is proposed. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an apparatus and method for treating aquaculture wastewater using a combination of bacteria and algae, which solves the problem that existing mechanical stirring or aeration devices are unable to mix bacteria and algae evenly with the wastewater.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device and method for treating aquaculture wastewater using a combination of bacteria and algae, comprising a treatment tank, and further comprising:

[0006] An algae and bacteria storage component is installed on the top of the processing box, and a motor for driving the algae and bacteria storage component is provided on the top of the processing box.

[0007] A mixing component, which is fixedly mounted at the bottom of the algae and bacteria storage component;

[0008] Injection assembly, which is installed at the bottom of the algae and bacteria storage assembly;

[0009] A swing assembly, which is fixedly mounted to the bottom of the injection assembly;

[0010] The mixing component includes a circulation pipe fixed to the bottom of the algae and bacteria storage component. An S-shaped guide pipe is fixed to the bottom of the circulation pipe, and the bottom of the circulation pipe is connected to the S-shaped guide pipe. Spray nozzles are fixed to both ends of the S-shaped guide pipe.

[0011] The nozzle gradually becomes rectangular from the end connected to the S-shaped guide tube toward the end closer to the swing assembly;

[0012] The upper end of the circulation pipe is provided with a water inlet groove, and an auger is fixedly installed inside the circulation pipe;

[0013] The swing assembly includes an arc-shaped plate fixed to the bottom of the second protective cover in the injection assembly, and a fixing rod is movably sleeved on the arc-shaped plate;

[0014] The circulation pipe rotates along with the algae and bacteria storage component. The wastewater in the treatment tank is injected into the S-shaped guide pipe through the inlet channel under the action of the auger, and then sprayed out through two nozzles. Under the action of the water flow, the fixed rod swings, so that the algae and bacteria are sprayed out through the injection component and mixed with the wastewater.

[0015] Preferably, the mixing component further includes a drain pipe fixed to the bottom of the S-shaped guide tube, the drain pipe having a guide tube fixed inside, a rectangular through groove on the outside of the guide tube, a diversion box fixed to the bottom of the guide tube, and a water spray hole on the outside of the diversion box.

[0016] Preferably, a sealing post is movably sleeved on the outside of the guide pipe, and the sealing post is movable inside the drain pipe;

[0017] The sealing post, under the action of the reset spring, is positioned at the upper end of the guide tube to seal the rectangular through groove.

[0018] Preferably, the algae and bacteria storage assembly includes a storage tube movably installed on the top of the processing box, a drive wheel fixedly mounted on the upper end of the storage tube, and a motor on the top of the processing box connected to the drive wheel via a belt;

[0019] The storage tube is externally connected to an injection tube;

[0020] The top of the circulation tube is fixedly connected to the bottom of the storage tube.

[0021] Preferably, the injection assembly includes a first protective cover fixedly mounted to the bottom of the injection tube, a second protective cover fixedly mounted to the bottom of the first protective cover, and a half gear movably mounted inside the second protective cover;

[0022] A cam is fixedly mounted on the top of the half gear, a first circular plate is fixedly mounted on the top of the cam, a second circular plate is fixedly mounted inside the first protective cover, and a first through hole and a second through hole are respectively opened on the first circular plate and the second circular plate.

[0023] The second circular plate divides the interior of the first protective cover into two cavities.

[0024] Preferably, the swing assembly further includes an arc-shaped groove formed on the second protective cover, and an arc-shaped rack is mounted on the top of one end of the arc-shaped plate via a connecting rod, the connecting rod being movable within the arc-shaped groove.

[0025] Preferably, the arc-shaped rack meshes with the half gear, the cam is located in the lower cavity inside the first protective cover, and the bottom of the second protective cover is fixedly fitted with a rubber protective cover to seal the arc-shaped groove.

[0026] Preferably, a water spray pipe is fixedly installed on the outside of the first protective cover, and a limit ring and a support frame are fixedly installed at both ends inside the water spray pipe, respectively. The support frame is connected to a valve plate through a support spring, and the valve plate abuts against the limit ring under the action of the support spring.

[0027] The inner wall of the water spray pipe is provided with a ring array of guide rods to guide the valve plate.

[0028] This invention also provides a method for treating aquaculture wastewater using a combination of bacteria and algae, comprising the following steps:

[0029] S1. The pre-filtered aquaculture wastewater is injected into the treatment tank, and then microbial bacteria are injected into the algae storage component. The algae storage component, mixing component, feeding component and swing component are rotated by the motor.

[0030] S2. During the rotation of the circulation pipe, the tailwater inside the treatment tank enters the circulation pipe through the inlet channel and enters the interior of the S-shaped guide pipe under the action of the auger. It moves along the S-shaped guide pipe and is sprayed out from the nozzle. Since the nozzle gradually becomes rectangular from one end to the other, the sprayed tailwater passes through the fixed rod. The fixed rod swings around the arc plate as the central axis under the action of the water flow.

[0031] S3. During the swinging process, the microorganisms inside the algae storage component and the injection component are injected into the treatment tank. A low-pressure area will be formed around the nozzle. Under the action of low pressure, the microorganisms come into contact with the sprayed tail water and are mixed with the tail water by the swinging action of the fixed rod. After the microorganisms and tail water are mixed and treated, the algae are injected into the algae storage component. Repeating the above steps will allow the algae to be injected into the treatment tank and fully mixed with the tail water.

[0032] S4. The effluent from the top of the treatment tank is drawn in by the rotation of the circulation pipe and sprayed out at the bottom of the treatment tank through the S-shaped guide pipe, thereby circulating the water inside the treatment tank up and down to avoid dead zones or sedimentation in the effluent inside the treatment tank.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] This invention uses a rotating circulation pipe to draw in the wastewater from the top of the treatment tank and sprays it out from the bottom of the treatment tank through an S-shaped guide pipe. This allows the water inside the treatment tank to circulate up and down, preventing dead zones or sedimentation in the wastewater and thus avoiding affecting the overall treatment effect. It also prevents viscous substances in the wastewater from clogging the agitator and aeration head.

[0035] This invention uses a nozzle to spray tailwater, which drives a fixed rod to swing. A connecting rod moves within an arc-shaped groove, causing an arc-shaped rack to move. Since the arc-shaped rack meshes with a half-gear, it drives the half-gear, cam, and first circular plate to rotate. Initially, the first and second through holes coincide, and the bacteria and algae at the upper end of the first protective cover enter the lower end of the first protective cover. The cam rotates, and the first and second through holes are no longer connected. At this time, the rotation of the cam squeezes the bacteria and algae in the first protective cover. The pressure on the bacteria and algae at the lower end of the first protective cover gradually increases, pushing the valve plate away from the limiting ring and compressing the support spring. The bacteria and algae can then enter the interior of the treatment tank through the spray pipe and mix with the sprayed tailwater under the action of the low-pressure area formed by the nozzle. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the external structure of the mixing component, the algae storage component, the feeding component, and the oscillating component of the present invention;

[0039] Figure 4 This is a schematic cross-sectional view of the hybrid component of the present invention;

[0040] Figure 5This is a schematic diagram of the combined structure of the injection component, the algae storage component, and the oscillation component of the present invention;

[0041] Figure 6 This is a schematic diagram of the disassembled structure of the injection assembly of the present invention;

[0042] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0043] Figure 8 This is a partial cross-sectional structural diagram of the hybrid component of the present invention.

[0044] In the diagram: 1. Processing box; 2. Algae and bacteria storage assembly; 21. Drive wheel; 22. Injection pipe; 23. Storage pipe; 25. Support rod; 211. Water spray pipe; 212. Limiting ring; 213. Valve plate; 214. Support frame; 215. Support spring; 216. Guide rod; 4. Mixing assembly; 41. Circulation pipe; 42. S-shaped guide pipe; 43. Nozzle; 44. Water inlet channel; 45. Screwdriver; 411. Drainage pipe; 412. Sealing column; 4 13. Rectangular through slot; 414. Return spring; 415. Guide tube; 416. Diverter box; 417. Water spray hole; 5. Injection assembly; 51. First protective cover; 52. Second protective cover; 53. Cam; 54. Half gear; 55. First circular plate; 56. First through hole; 57. Second through hole; 58. Second circular plate; 6. Swing assembly; 61. Arc plate; 62. Fixing rod; 63. Arc rack; 64. Connecting rod; 65. Arc groove. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] like Figures 1 to 8 As shown, the present invention provides an apparatus and method for treating aquaculture wastewater using a combination of bacteria and algae, comprising a treatment tank 1, and further comprising:

[0047] Algae and bacteria storage component 2 is installed on the top of the processing box 1, and a motor for driving the algae and bacteria storage component 2 is provided on the top of the processing box 1.

[0048] Mixing component 4 is fixedly mounted at the bottom of bacteria and algae storage component 2;

[0049] Injection component 5 is installed at the bottom of bacteria and algae storage component 2;

[0050] The oscillating component 6 is fixedly mounted at the bottom of the injection component 5;

[0051] The mixing component 4 includes a circulation pipe 41 fixed to the bottom of the bacteria and algae storage component 2. An S-shaped guide pipe 42 is fixed to the bottom of the circulation pipe 41. The bottom of the circulation pipe 41 is connected to the S-shaped guide pipe 42. Both ends of the S-shaped guide pipe 42 are fixed with nozzles 43.

[0052] The nozzle 43 gradually becomes rectangular from the end connected to the S-shaped guide tube 42 toward the end closer to the swing assembly 6;

[0053] The upper end of the circulation pipe 41 is provided with a water inlet groove 44, and the inside of the circulation pipe 41 is fixedly equipped with an auger 45.

[0054] The swing assembly 6 includes an arc-shaped plate 61 fixedly mounted at the bottom of the second protective cover 52 in the injection assembly 5, and a fixing rod 62 is movably sleeved on the arc-shaped plate 61;

[0055] The circulation pipe 41 rotates with the bacteria and algae storage component 2. The tailwater in the treatment tank 1 is injected into the S-shaped guide pipe 42 through the water inlet channel 44 under the action of the screw conveyor 45, and sprayed out through the two nozzles 43. Under the action of the water flow, the fixed rod 62 swings, so that the bacteria and algae are sprayed out through the injection component 5 and mixed with the tailwater.

[0056] The pre-filtered aquaculture wastewater is injected into the treatment tank 1, and then microorganisms are injected into the algae and bacteria storage component 2. The algae and bacteria storage component 2, mixing component 4, feeding component 5, and oscillating component 6 are rotated by a motor. During the rotation of the circulation pipe 41, the wastewater inside the treatment tank 1 enters the circulation pipe 41 through the inlet channel 44 and, under the action of the auger 45, enters the interior of the S-shaped guide pipe 42. Moving along the S-shaped guide pipe 42, it is sprayed out from the nozzle 43. Because the nozzle 43 gradually changes from a round shape to a rectangular shape at one end, the sprayed wastewater is fixed... The rod 62, under the action of water flow, swings around the arc plate 61 as the central axis. At the same time, during the swinging process, the microorganisms inside the algae storage component 2 and the injection component 5 are injected into the treatment tank 1. The nozzle 43 sprays out and a low-pressure area is formed around it. Under the action of low pressure, the microorganisms come into contact with the sprayed tailwater and are mixed with the tailwater by the swinging action of the fixed rod 62. After the microorganisms and tailwater are mixed and treated, the algae are injected into the algae storage component 2. Repeating the above steps, the algae are injected into the treatment tank 1 and fully mixed with the tailwater.

[0057] The effluent from the upper part of the treatment tank 1 is drawn in by the rotation of the circulation pipe 41 and sprayed out at the lower part of the treatment tank 1 through the S-shaped guide pipe 42. This circulates the water inside the treatment tank 1 from top to bottom, preventing dead zones or sedimentation in the effluent inside the treatment tank 1, which would affect the overall treatment effect of the effluent. At the same time, it can prevent viscous substances in the effluent from clogging the agitator and aeration head.

[0058] like Figure 4 and 8 As shown, the mixing component 4 also includes a drain pipe 411 fixed to the bottom of the S-shaped guide pipe 42. A guide pipe 415 is fixed inside the drain pipe 411. A rectangular through groove 413 is opened on the outside of the guide pipe 415. A diversion box 416 is fixed to the bottom of the guide pipe 415. A water spray hole 417 is opened on the outside of the diversion box 416.

[0059] A sealing post 412 is movably fitted on the outside of the guide pipe 415, and the sealing post 412 is movable inside the drain pipe 411;

[0060] The sealing post 412, under the action of the reset spring 414, is positioned at the upper end of the guide tube 415 to seal the rectangular through groove 413.

[0061] The wastewater in the treatment tank 1 enters the circulation pipe 41 through the inlet channel 44 and then enters the S-shaped guide pipe 42 under the action of the auger 45 and is sprayed out through the nozzle 43. Since the nozzle 43 gradually becomes rectangular from a circle, it can increase the flow rate of the water sprayed from the nozzle 43. When the water pressure in the S-shaped guide pipe 42 is too high, the sealing column 412 moves down along the guide pipe 415 and the drain pipe 411 under the action of the water pressure in the S-shaped guide pipe 42, compressing the reset spring 414. During the downward movement, the guide pipe 415 remains connected to the interior of the S-shaped guide pipe 42 through the rectangular channel 413. The wastewater in the S-shaped guide pipe 42 enters the diversion box 416 through the guide pipe 415 and is sprayed out through the spray hole 417, so as to avoid the water pressure sprayed out by the nozzle 43 being too high, reducing the contact time between bacteria and algae and wastewater, thereby affecting the wastewater treatment effect.

[0062] like Figures 3-7 As shown, the algae storage component 2 includes a storage tube 23 movably installed on the top of the processing box 1. A drive wheel 21 is fixedly installed at the upper end of the storage tube 23. The motor on the top of the processing box 1 is connected to the drive wheel 21 via a belt.

[0063] The storage tube 23 is externally connected to the injection tube 22;

[0064] The top of the circulation tube 41 is fixedly connected to the bottom of the storage tube 23;

[0065] The injection assembly 5 includes a first protective cover 51 fixedly mounted at the bottom of the injection tube 22, a second protective cover 52 fixedly mounted at the bottom of the first protective cover 51, and a half gear 54 movably mounted inside the second protective cover 52.

[0066] A cam 53 is fixedly mounted on the top of the half gear 54, a first circular plate 55 is fixedly mounted on the top of the cam 53, a second circular plate 58 is fixedly mounted inside the first protective cover 51, and a first through hole 56 and a second through hole 57 are respectively opened on the first circular plate 55 and the second circular plate 58.

[0067] The second circular plate 58 divides the interior of the first protective cover 51 into two cavities;

[0068] The swing assembly 6 also includes an arc-shaped groove 65 opened on the second protective cover 52. An arc-shaped rack 63 is installed on the top of one end of the arc plate 61 via a connecting rod 64. The connecting rod 64 moves within the arc-shaped groove 65.

[0069] The arc-shaped rack 63 meshes with the half gear 54, the cam 53 is located in the lower cavity of the first protective cover 51, and the bottom of the second protective cover 52 is fixed with a rubber protective cover that seals the arc-shaped groove 65.

[0070] The first protective cover 51 is fixedly equipped with a water spray pipe 211. The two ends of the water spray pipe 211 are respectively fixedly equipped with a limit ring 212 and a support frame 214. The support frame 214 is connected to a valve plate 213 through a support spring 215. The valve plate 213 abuts against the limit ring 212 under the action of the support spring 215.

[0071] The inner wall of the water spray pipe 211 is provided with a ring array of guide rods 216 for guiding the valve plate 213.

[0072] The spray from the nozzle 43 causes the fixed rod 62 to swing, and the connecting rod 64 moves within the arc groove 65, causing the arc rack 63 to move. Since the arc rack 63 meshes with the half gear 54, it drives the half gear 54, cam 53 and the first circular plate 55 to rotate. In the initial state, the first through hole 56 and the second through hole 57 coincide, and the bacteria and algae at the upper end of the first protective cover 51 enter the lower end of the first protective cover 51. The cam 53 rotates and the first through hole 56 and the second through hole 57 are in a non-connected state. At this time, the rotation of the cam 53 squeezes the bacteria and algae in the first protective cover 51. At this time, the bacteria and algae at the lower end of the first protective cover 51 are squeezed and the pressure gradually increases, which pushes the valve plate 213 to disengage from the limit ring 212 and compresses the support spring 215. The bacteria and algae can then enter the interior of the treatment tank 1 through the spray pipe 211 and mix with the sprayed tailwater under the action of the low-pressure area formed by the spray from the nozzle 43.

[0073] At the same time, when the arc plate 61 swings in the opposite direction, it drives the half gear 54, cam 53 and the first circular plate 55 to rotate in the opposite direction. At this time, the first through hole 56 and the second through hole 57 coincide, and the bacteria and algae at the upper end of the first protective cover 51 can enter the lower end of the first protective cover 51. By repeating this process, the bacteria and algae can be evenly injected into the interior of the treatment box 1, reducing subsequent mixing.

[0074] This invention also provides a method for treating aquaculture wastewater using a combination of bacteria and algae, comprising the following steps:

[0075] S1. The pre-filtered aquaculture wastewater is injected into the treatment tank 1, and then microbial bacteria are injected into the algae storage component 2. The algae storage component 2, mixing component 4, feeding component 5 and swing component 6 are rotated by a motor.

[0076] S2. During the rotation of the circulation pipe 41, the tailwater inside the treatment tank 1 enters the circulation pipe 41 through the water inlet channel 44, and enters the interior of the S-shaped guide pipe 42 under the action of the screw conveyor 45. It moves along the S-shaped guide pipe 42 and is sprayed out from the nozzle 43. Since the nozzle 43 gradually becomes rectangular from one end to the other, the sprayed tailwater passes through the fixed rod 62. The fixed rod 62 swings around the arc plate 61 as the central axis under the action of the water flow.

[0077] S3. Simultaneously, during the swinging process, the microorganisms inside the algae storage component 2 and the injection component 5 are injected into the treatment tank 1. The nozzle 43 sprays out and a low-pressure area is formed around it. Under the action of low pressure, the microorganisms come into contact with the sprayed tail water and are mixed with the tail water under the swinging action of the fixed rod 62. After the microorganisms and tail water are mixed and treated, the algae are injected into the algae storage component 2. Repeating the above steps will allow the algae to be injected into the treatment tank 1 and fully mixed with the tail water.

[0078] S4. The effluent from the upper end of the treatment tank 1 is drawn in by the rotation of the circulation pipe 41 and sprayed out at the lower end of the treatment tank 1 through the S-shaped guide pipe 42, thereby circulating the water inside the treatment tank 1 up and down to avoid dead zones or sedimentation in the effluent inside the treatment tank 1.

[0079] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0080] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for treating aquaculture wastewater using a combination of bacteria and algae, comprising a treatment tank (1), characterized in that, Also includes: Algae and bacteria storage component (2), which is installed on the top of the processing box (1), and the top of the processing box (1) is provided with a motor for driving the algae and bacteria storage component (2); A mixing component (4) is fixedly mounted at the bottom of the algae and bacteria storage component (2); Injection assembly (5), which is installed at the bottom of the algae and bacteria storage assembly (2); A swing assembly (6) is fixedly mounted on the bottom of the injection assembly (5); The mixing component (4) includes a circulation pipe (41) fixed to the bottom of the algae and bacteria storage component (2), an S-shaped guide pipe (42) fixed to the bottom of the circulation pipe (41), the bottom of the circulation pipe (41) being connected to the S-shaped guide pipe (42), and nozzles (43) fixed to both ends of the S-shaped guide pipe (42). The nozzle (43) gradually becomes rectangular from the end connected to the S-shaped guide tube (42) toward the end closer to the swing assembly (6); The upper end of the circulation pipe (41) is provided with a water inlet groove (44), and an auger (45) is fixedly installed inside the circulation pipe (41). The swing assembly (6) includes an arc-shaped plate (61) fixedly mounted at the bottom of the second protective cover (52) in the injection assembly (5), and a fixing rod (62) is movably sleeved on the arc-shaped plate (61); The circulation pipe (41) rotates with the bacteria and algae storage component (2). The tailwater in the treatment tank (1) is injected into the S-shaped guide pipe (42) through the water inlet channel (44) under the action of the screw conveyor (45), and sprayed out through the two nozzles (43). Under the action of the water flow, the fixed rod (62) swings, so that the bacteria and algae are sprayed out through the injection component (5) and mixed with the tailwater. The injection assembly (5) includes a first protective cover (51) fixedly installed at the bottom of the injection tube (22) in the bacteria and algae storage assembly (2), a second protective cover (52) fixedly installed at the bottom of the first protective cover (51), and a half gear (54) movably installed inside the second protective cover (52). The top of the half gear (54) is fixedly fitted with a cam (53), the top of the cam (53) is fixedly fitted with a first circular plate (55), the inside of the first protective cover (51) is fixedly fitted with a second circular plate (58), and the first circular plate (55) and the second circular plate (58) are respectively provided with a first through hole (56) and a second through hole (57). The second circular plate (58) divides the interior of the first protective cover (51) into two cavities; The swing assembly (6) also includes an arc-shaped groove (65) opened on the second protective cover (52), and an arc-shaped rack (63) is installed on the top of one end of the arc plate (61) through a connecting rod (64), and the connecting rod (64) moves within the arc-shaped groove (65).

2. The apparatus for treating aquaculture wastewater using a combination of bacteria and algae according to claim 1, characterized in that: The mixing component (4) also includes a drain pipe (411) fixed to the bottom of the S-shaped guide pipe (42). A guide pipe (415) is fixed inside the drain pipe (411). A rectangular through groove (413) is opened on the outside of the guide pipe (415). A diversion box (416) is fixed to the bottom of the guide pipe (415). A water spray hole (417) is opened on the outside of the diversion box (416).

3. The apparatus for treating aquaculture wastewater using a combination of bacteria and algae according to claim 2, characterized in that: A sealing post (412) is movably sleeved on the outside of the guide pipe (415), and the sealing post (412) is movable inside the drain pipe (411); The sealing post (412) is positioned at the upper end of the guide tube (415) to block the rectangular through groove (413) under the action of the return spring (414).

4. The apparatus for treating aquaculture wastewater using a combination of bacteria and algae according to claim 2, characterized in that: The algae and bacteria storage component (2) includes a storage tube (23) movably installed on the top of the processing box (1). A drive wheel (21) is fixedly installed at the upper end of the storage tube (23). The motor on the top of the processing box (1) is connected to the drive wheel (21) via a belt. The storage tube (23) is externally connected to an injection tube (22); The top of the circulation tube (41) is fixedly connected to the bottom of the storage tube (23).

5. The apparatus for treating aquaculture wastewater using a combination of bacteria and algae according to claim 1, characterized in that: The arc-shaped rack (63) meshes with the half gear (54), the cam (53) is located in the lower cavity of the first protective cover (51), and the bottom of the second protective cover (52) is fixedly fitted with a rubber protective cover that seals the arc-shaped groove (65).

6. The apparatus for treating aquaculture wastewater using a combination of bacteria and algae according to claim 5, characterized in that: The first protective cover (51) is fixedly equipped with a water spray pipe (211). The two ends of the water spray pipe (211) are respectively fixedly equipped with a limit ring (212) and a support frame (214). The support frame (214) is connected to a valve plate (213) through a support spring (215). The valve plate (213) abuts against the limit ring (212) under the action of the support spring (215). The inner wall of the water spray pipe (211) is provided with a ring array of guide rods (216) to guide the valve plate (213).

7. A method for treating aquaculture wastewater using a combination of bacteria and algae, employing the apparatus for treating aquaculture wastewater using a combination of bacteria and algae as described in claim 1, characterized in that, Includes the following steps: S1. The pre-filtered aquaculture wastewater is injected into the treatment tank (1), and then microbial bacteria are injected into the algae storage component (2). The algae storage component (2), mixing component (4), feeding component (5) and swing component (6) are driven to rotate by a motor. S2. During the rotation of the circulation pipe (41), the tailwater inside the treatment tank (1) enters the circulation pipe (41) through the inlet channel (44) and enters the interior of the S-shaped guide pipe (42) under the action of the screw conveyor (45). It moves along the S-shaped guide pipe (42) and sprays out from the nozzle (43). Since the nozzle (43) gradually becomes rectangular from one end to the other, the sprayed tailwater passes through the fixed rod (62). The fixed rod (62) swings around the arc plate (61) as the central axis under the action of the water flow. S3. During the swinging process, the microorganisms inside the algae storage component (2) and the injection component (5) are injected into the treatment tank (1). The nozzle (43) sprays out and a low-pressure area is formed around it. Under the action of low pressure, the microorganisms come into contact with the sprayed tail water and are mixed with the tail water under the action of the swinging of the fixed rod (62). After the microorganisms and tail water are mixed, the algae are injected into the algae storage component (2) and the above steps are repeated to inject the algae into the treatment tank (1) and mix them thoroughly with the tail water. S4. The wastewater at the top of the treatment tank (1) is sucked in by rotating the circulation pipe (41) and sprayed out at the bottom of the treatment tank (1) through the S-shaped guide pipe (42), so as to circulate the water inside the treatment tank (1) up and down, and avoid dead zones or sedimentation in the wastewater inside the treatment tank (1).

Images