A shrimp pond purifying device and purifying method thereof

Abstract

The application discloses a shrimp pond purification device, which comprises a breeding pond, a plurality of strip-shaped pollution blocks arranged in the gap of the bottom of the breeding pond, and a sewage collecting tank arranged at the bottom of the strip-shaped pollution blocks; a sludge well and a sedimentation tank are arranged on one side of the breeding pond, the bottom of the sludge well is communicated with the sewage collecting tank, a recovery pipeline is arranged in the sludge well, and the sewage collecting tank is connected with the sedimentation tank through the recovery pipeline; a standing tank and a circulating tank are arranged on the other side of the breeding pond, the breeding pond is connected with the standing tank through a water pumping pipe, the standing tank is connected with the circulating tank through a water supply pipe, a disinfection component and a filtering component are sequentially arranged on the water supply pipe, and the circulating tank is connected with the breeding pond through a drainage pipe; through cooperation of the strip-shaped pollution blocks, the sewage collecting tank and the sludge well, the shrimp pond purification device can realize recycling of sludge in the breeding pond, reduce accumulation of pollutants such as residual feed and excrement, and through cooperation of the standing tank, the disinfection component, the filtering component and the circulating tank, the shrimp pond purification device can realize recycling of pond water.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aquaculture technology, in particular to a shrimp pond purification device and a purification method thereof. BACKGROUND

[0002] Penaeus vannamei is the highest yield of the three major shrimp species in the world, which has strong vitality, wide adaptability, strong disease resistance, rapid growth, low requirement for feed protein content, high meat yield and long survival time out of water. It is an excellent variety for intensive high-yield aquaculture. Penaeus vannamei is deeply loved by the public. It is easy to raise and has high meat yield. Therefore, the cultivation of Penaeus vannamei will develop well.

[0003] During the cultivation of Penaeus vannamei in the pond, most of the ponds cannot be replaced with water, and a large amount of pollutants such as residual feed and feces accumulate and cannot be transferred in time, resulting in an increase in harmful environmental factors such as ammonia nitrogen and nitrite in the water body, and a large number of conditional pathogenic bacteria such as Vibrio and harmful algae breeding, which can cause the outbreak of large-scale diseases and easily lead to the occurrence of Penaeus vannamei diseases, thereby bringing difficulties to the cultivation of Penaeus vannamei. Therefore, the present application provides a pond purification device for the cultivation of Penaeus vannamei and a purification method thereof to solve the problem. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a shrimp pond purification device and a purification method thereof, which solves the problem of difficulty in cleaning and purifying pollutants in the shrimp pond in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] In a first aspect, a shrimp pond purification device is provided, which comprises a breeding pond, a plurality of strip-shaped pollution blocks arranged in the gap of the bottom of the breeding pond, a pollution collection tank arranged at the bottom of the strip-shaped pollution block, the pollution collection tank being communicated with the breeding pond through a pollution discharge channel formed between adjacent two strip-shaped pollution blocks; a sludge well and a sedimentation tank are arranged on one side of the breeding pond, the bottom of the sludge well is communicated with the pollution collection tank, a sludge recovery head is arranged at the bottom of the sludge well, the sludge recovery head is connected with one end of a recovery pipeline, the other end of the recovery pipeline is arranged in the sedimentation tank, a sludge pump is arranged on the recovery pipeline; a standing tank and a circulating tank are arranged on the other side of the breeding pond, the breeding pond and the standing tank are connected through a water pumping pipe provided with a water pump, the standing tank and the circulating tank are connected through a water supply pipe provided with a water pump, a disinfection member and a filter member are arranged in sequence on the water supply pipe, the circulating tank and the breeding pond are connected through a drainage pipe, a drainage port of the drainage pipe is arranged above the breeding pond, a high-pressure nozzle provided with a negative pressure pump is arranged on the drainage port, and an atomizer is arranged on the high-pressure nozzle.

[0007] The beneficial effects of the above technical scheme are that: through cooperation of the strip-shaped pollution separation block, the pollution collection tank and the sludge well, the sludge in the breeding pond can be recycled, the accumulation of pollutants such as residual feed and feces can be reduced, and the harm of harmful factors such as ammonia nitrogen and nitrite in the water body to the water body can be reduced, so that the water quality and the survival rate of shrimps are improved; meanwhile, through cooperation of the standing pond, the disinfection component, the filtering component and the circulation pond, the pond water can be recycled, wherein the pond water is first subjected to standing and sedimentation, sterilization and disinfection and particle filtration, so that the water quality of the pond water is effectively improved, and the treated pond water is returned to the breeding pond through atomization and spraying, so that the pond water is recycled, the contact area of the atomized pond water with air is increased, so that the oxygen content of the water is increased, and the breeding and yield increase of shrimps are facilitated.

[0008] Further, the top of the strip-shaped pollution separation block is provided with a pollution guide top cone, and a funnel-shaped pollution guide groove is formed between two adjacent pollution guide top cones, and the bottom of the pollution guide groove is communicated with the top of the pollution discharge channel.

[0009] The beneficial effects of the above technical scheme are that: the funnel-shaped pollution guide groove can make the sludge in the breeding pond automatically slide into the pollution discharge channel, and then slide into the pollution collection tank through the pollution discharge channel, so as to maximize the recycling of the sludge in the breeding pond.

[0010] Further, the first leakage prevention net is arranged in the pollution guide groove, the second leakage prevention net is arranged in the pollution discharge channel, the bottom surface of the pollution collection tank is inclined, and the communication between the pollution collection tank and the sludge well is located at the lowest part of the bottom surface of the pollution collection tank.

[0011] The beneficial effects of the above technical scheme are that: the first leakage prevention net can effectively prevent large pieces of sundries from entering the pollution discharge channel, and the second leakage prevention net can effectively prevent shrimps from entering the pollution collection tank through the pollution discharge channel; meanwhile, the sludge in the pollution collection tank can automatically slide and accumulate at the bottom of the sludge well, so as to facilitate the centralized extraction of the sludge.

[0012] Further, the disinfection component comprises a protection cylinder, a sealing cap is arranged at the upper end of the protection cylinder, a water inlet hole communicated with the protection cylinder is arranged on the sealing cap, a water outlet hole is arranged at the bottom of the protection cylinder, a plurality of mounting racks are arranged in the protection cylinder in the vertical direction, and a plurality of ultraviolet sterilization lamps are arranged on the mounting racks, so as to realize the sterilization and disinfection of the pond water.

[0013] Further, the mounting rack comprises a plurality of horizontal mounting bars, one end of the mounting bars is fixedly connected, the other end of the mounting bars is connected with the inner side wall of the protection cylinder, the mounting bars are uniformly arranged in the circumferential direction of the inner side wall of the protection cylinder, the mounting bars on two adjacent mounting racks are arranged alternately, and a plurality of ultraviolet sterilization lamps are arranged on each mounting bar.

[0014] The beneficial effects of adopting the above technical solution are as follows: this arrangement allows the ultraviolet sterilization lamp to fully irradiate the pool water, thereby improving the sterilization effect of the pool water; at the same time, the staggered arrangement of several mounting strips on two adjacent mounting racks can enhance the turbulence of the pool water, thereby further improving the sterilization effect of the pool water.

[0015] Furthermore, a baffle ring is installed inside the water inlet, and a filter plate is abutted against the water-facing side of the baffle ring. A water-passing plate is installed inside the protective cylinder located between the water inlet and the mounting bracket, and several water-passing holes are evenly arranged on the water-passing plate.

[0016] The beneficial effects of adopting the above technical solution are as follows: the filter disc can filter out suspended solids in the pool water and is easy to disassemble and install, so as to facilitate maintenance and replacement; while the several water passage holes on the water passage disc can make the pool water entering the protective cylinder evenly dispersed.

[0017] Furthermore, the filter component includes a filter box, with an inlet and an outlet at the top and bottom of the filter box, respectively. A water distribution pipe connected to the inlet is installed inside the filter box. The water distribution pipe is horizontally arranged, and several sprayers are evenly arranged at the bottom of the water distribution pipe. A primary filter is installed in the filter box below the sprayers, and a secondary filter is installed in the gap below the primary filter.

[0018] The beneficial effects of adopting the above technical solution are as follows: the water distribution pipe can evenly spray the sterilized and disinfected pool water through several water sprayers, and the particles in the pool water can be effectively removed through the dual filtration of the primary filter and the secondary filter.

[0019] Furthermore, a collection frame is provided on the top of the side wall of the settling tank, and the outlet of the water pump is placed inside the collection frame, which can achieve the initial filtration of suspended solids in the tank water.

[0020] On the other hand, a purification method based on a shrimp pond purification device is also provided, which includes the following steps:

[0021] S1: When it is necessary to recycle the water in the aquaculture pond, proceed with steps S2-S5; when it is necessary to recycle the sludge in the aquaculture pond, proceed with step S6.

[0022] S2: Turn on the water pump on the water pumping pipe to pump the water in the breeding pond into the settling pond;

[0023] S3: Add flocculant and a certain amount of acetic acid, gypsum powder and / or sodium humate to settle the waste and neutralize the pH of the pool water.

[0024] S4. Turn on the water pump on the water supply pipe to sterilize the water in the settling tank by passing it through the disinfection components, then filter it through the filtration components to remove particles and foreign matter, and finally discharge it into the circulation tank.

[0025] S5: After the pool water is exposed to the sun in the circulation pool for a set number of days, the negative pressure pump is driven to pump the pool water in the circulation pool to the high-pressure nozzle through the drain pipe, and then spray the pool water into the breeding pool through the atomizer.

[0026] S6: Turn on the sludge pump to pump the sludge in the collection tank into the sedimentation tank through the recycling pipe for sedimentation until the supernatant is precipitated on the top layer of the sludge. First, pump out the supernatant and use it for crop irrigation, and then pump out the bottom sludge and use it as fertilizer for plants. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the shrimp pond purification device in this solution.

[0028] Figure 2 This is a schematic diagram of the disinfection component.

[0029] Figure 3 This is a schematic diagram of the filter box.

[0030] The components include: 1. Aquaculture pond; 2. First leak-proof net; 3. Strip-shaped sludge separating block; 31. Sludge guiding cone; 4. Sludge guiding trough; 5. Sludge discharge channel; 6. Sludge collection trough; 7. Second leak-proof net; 8. Sludge recovery head; 9. Recovery pipeline; 10. Sludge well; 11. Sedimentation tank; 12. Support frame; 13. Sludge pump; 14. Drainage pipe; 15. High-pressure nozzle; 16. Atomizer; 17. Pumping pipe; 18. Collection frame; 19. Settling tank; 20. Disinfection components; 2001. 2002. Protective casing; 2003. Sealing cap; 2004. Water inlet; 2005. Water outlet; 2006. Ultraviolet sterilization lamp; 2007. Mounting strip; 2008. Retaining ring; 2009. Filter disc; 20000. Water tray; 21. Filter component; 211. Filter box; 212. Water inlet; 213. Water outlet; 214. Water distribution pipe; 215. Primary filter; 216. Secondary filter; 217. Sprayer; 22. Circulation tank; 23. Water supply pipe. Detailed Implementation

[0031] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0032] Example 1

[0033] like Figure 1As shown, the shrimp pond purification device of this scheme includes a culture pond 1. Several strip-shaped sludge-distributing blocks 3 are arranged with gaps at the bottom of the culture pond 1. A sludge collection trough 6 is installed at the bottom of each strip-shaped sludge-distributing block 3. The sludge collection trough 6 is connected to the culture pond 1 through a sewage discharge channel 5 formed between two adjacent strip-shaped sludge-distributing blocks 3. A sludge-guiding cone 31 is installed at the top of each strip-shaped sludge-distributing block 3. The cross-section of the sludge-guiding cone 31 is an isosceles triangle. A funnel-shaped sludge-guiding channel 4 is formed between two adjacent sludge-guiding cones 31. The bottom of the sludge-guiding channel 4 is connected to the top of the sewage discharge channel 5. The middle part of the sludge-guiding channel 4... A first anti-leakage net 2 is installed, and a second anti-leakage net 7 is installed at the top of the sewage discharge channel 5. The funnel-shaped sewage guide trough 4 allows the sludge in the aquaculture pond 1 to automatically slide into the sewage discharge channel 5, and then into the sewage collection trough 6, so as to maximize the recovery of the sludge in the aquaculture pond 1. The first anti-leakage net 2 can effectively prevent large pieces of debris from entering the sewage discharge channel 5, and the second anti-leakage net 7 can effectively prevent shrimp from entering the sewage collection trough 6 through the sewage discharge channel 5. At the same time, the sludge between the first anti-leakage net 2 and the second anti-leakage net 7 can provide a shelter for the shrimp.

[0034] A sludge well 10 and a sedimentation tank 11 are provided on one side of the aquaculture pond 1. The bottom of the sludge well 10 is connected to the sludge collection trough 6. A sludge recovery head 8 is provided at the bottom of the sludge well 10. The sludge recovery head 8 is connected to one end of the recovery pipe 9. The other end of the recovery pipe 9 is placed in the sedimentation tank 11. A sludge pump 13 is provided on the recovery pipe 9. The sludge pump 13 is fixed to the wellhead of the sludge well 10 by a support frame 12. The bottom surface of the sludge collection trough 6 is inclined, and the connection between the sludge collection trough 6 and the sludge well 10 is located at the lowest point of the bottom surface of the sludge collection trough 6. The sludge in the sludge collection trough 6 can automatically slide down and accumulate to the bottom of the sludge well 10 to facilitate the centralized extraction of sludge.

[0035] This solution, through the combination of the sludge guide cone 31, the strip-shaped sludge distribution block 3, the sludge collection trough 6 and the sludge well 10, can realize the recycling and utilization of sludge in the aquaculture pond 1, reduce the accumulation of pollutants such as uneaten feed and feces, reduce the harm of harmful factors such as ammonia nitrogen and nitrite in the water to the water body, thereby improving water quality and shrimp survival rate.

[0036] Example 2

[0037] like Figure 1As shown, this embodiment further defines the features of Embodiment 1. On the other side of the aquaculture pond 1, a settling pond 19 and a circulating pond 22 are provided. The aquaculture pond 1 and the settling pond 19 are connected by a water pump pipe 17. A collection frame 18 is provided on the top of the side wall of the settling pond 19. The outlet of the water pump pipe 17 is placed inside the collection frame 18, which can perform initial filtration of suspended solids in the pond water. The settling pond 19 and the circulating pond 22 are connected by a water supply pipe 23 with a water pump. A disinfection component 20 and a filter component 21 are sequentially provided on the water supply pipe 23. The circulating pond 22 and the aquaculture pond 1 are connected by a drain pipe 14. The drain port of the drain pipe 14 is located above the aquaculture pond 1, and a high-pressure nozzle 15 with a negative pressure pump is provided on the drain port. An atomizer 16 is provided on the high-pressure nozzle 15.

[0038] This solution utilizes a settling tank 19, a disinfection component 20, a filtration component 21, and a circulation tank 22 to achieve water recycling. The water first undergoes settling, sterilization, and particle filtration to effectively improve its quality. The treated water is then returned to the aquaculture tank 1 via atomized spraying. This water recycling process increases the surface area of ​​the water in contact with air, thereby increasing the oxygen content and promoting shrimp farming and production.

[0039] Example 3

[0040] like Figure 2 As shown, this embodiment, based on embodiment 2, provides a specific scheme for the disinfection component 20. The disinfection component 20 includes a protective cylinder 2001. A sealing cap 2002 is threaded onto the upper end of the protective cylinder 2001. The sealing cap 2002 has a water inlet 2003 communicating with the protective cylinder 2001. A water outlet 2004 is provided at the bottom of the protective cylinder 2001. Several mounting brackets are arranged vertically with gaps inside the protective cylinder 2001. Each mounting bracket includes eight horizontal mounting strips 2006. One end of each of the eight mounting strips 2006 is fixedly connected to... The other end is connected to the inner wall of the protective cylinder 2001, and the eight mounting strips 2006 are arranged in a star shape and evenly distributed around the inner wall of the protective cylinder 2001. Several mounting strips 2006 on two adjacent mounting frames are staggered, and several ultraviolet sterilization lamps 2005 are installed on each mounting strip 2006. This arrangement allows the ultraviolet sterilization lamps 2005 to fully irradiate the pool water, thereby improving the sterilization effect of the pool water. At the same time, the staggered arrangement of several mounting strips 2006 on two adjacent mounting frames can enhance the turbulence of the pool water, thereby further improving the sterilization effect of the pool water.

[0041] A baffle ring 2007 is installed inside the water inlet 2003. The water-facing side of the baffle ring 2007 abuts against a filter disc 2008. The filter disc 2008 can filter out suspended solids in the pool water and is easy to disassemble and install for maintenance and replacement. A water-passing plate 2009 is installed inside the protective cylinder 2001 located between the water inlet 2003 and the mounting bracket. Several water-passing holes are evenly arranged on the water-passing plate 2009 so that the pool water entering the protective cylinder 2001 is evenly dispersed.

[0042] Example 4

[0043] like Figure 3 As shown, this embodiment, based on embodiment 2, provides a specific scheme for the filter component 21. The filter component 21 includes a filter box 211. The top and bottom of the filter box 211 are respectively provided with an inlet 212 and an outlet 213. A water distribution pipe 214 communicating with the inlet 212 is provided inside the filter box 211. The water distribution pipe 214 is horizontally arranged. Several sprayers 217 are evenly arranged at the bottom of the water distribution pipe 214. A primary filter 215 is provided inside the filter box 211 below the sprayers 217. A secondary filter 216 is provided in the gap below the primary filter 215. The water distribution pipe 214 can evenly spray the sterilized and disinfected pool water through the several sprayers 217. Through the dual filtration of the primary filter 215 and the secondary filter 216, particles in the pool water can be effectively removed.

[0044] In conjunction with the above embodiments 1-4, this solution also provides a purification method based on a shrimp pond purification device, which includes the following steps:

[0045] S1: When it is necessary to recycle the water in the aquaculture pond 1, proceed with steps S2-S5; when it is necessary to recycle the sludge in the aquaculture pond 1, proceed with step S6.

[0046] S2: Turn on the water pump on the water pumping pipe 17 to pump the water in the breeding pond 1 into the settling pond 19.

[0047] S3: Add flocculant and a certain amount of acetic acid, gypsum powder and / or sodium humate to settle the waste and neutralize the pH of the pool water.

[0048] S4. Turn on the water pump on the water supply pipe 23 to sterilize the water in the settling tank 19 by passing it through the disinfection component 20, then through the filter component 21 to filter out particles and foreign matter, and finally discharge it into the circulation tank 22.

[0049] S5: After the pool water is exposed to the sun in the circulation pool 22 for a set number of days, the negative pressure pump is driven to pump the pool water in the circulation pool 22 to the high pressure nozzle 15 through the drain pipe 14, and then spray the pool water into the breeding pool 1 through the atomizer 16.

[0050] S6: Turn on the sludge pump 13 and pump the sludge in the collection tank 6 into the sedimentation tank 11 through the recycling pipe 9 for sedimentation until the supernatant is precipitated on the upper layer of the sludge. First, pump out the supernatant and use it for crop irrigation, and then pump out the bottom sludge and use it as fertilizer for plants.

[0051] The purification method described in this solution enables the circulation of pond water, resulting in water with good quality and high oxygen content, which is beneficial for shrimp farming. Furthermore, this purification method allows for the timely recycling of sludge from pond 1, preventing sludge from polluting the pond water and affecting shrimp farming. The remaining feed and excrement in the sludge can be used as nutrients for plants and crops, avoiding pollution while fully utilizing resources, aligning with the sustainable development concept of energy conservation and environmental protection.

Claims

1. A shrimp pond purification apparatus, characterized by, The application relates to an aquaculture pond, which comprises an aquaculture pond (1), a plurality of strip-shaped sewage sub-blocks (3) arranged in the bottom gap of the aquaculture pond (1), a sewage collecting groove (6) arranged at the bottom of the strip-shaped sewage sub-block (3), and a sewage discharge channel (5) formed between two adjacent strip-shaped sewage sub-blocks (3) and communicated with the aquaculture pond (1); One side of the aquaculture pond (1) is provided with a sludge well (10) and a sedimentation tank (11), the bottom of the sludge well (10) is communicated with the sewage collecting groove (6), the bottom of the sludge well (10) is provided with a sludge recovery head (8), the sludge recovery head (8) is connected with one end of a recovery pipeline (9), the other end of the recovery pipeline (9) is arranged in the sedimentation tank (11), and a sludge pump (13) is arranged on the recovery pipeline (9); The other side of the aquaculture pond (1) is provided with a standing pond (19) and a circulating pond (22), the aquaculture pond (1) and the standing pond (19) are connected through a water pumping pipe (17) provided with a water pump, the standing pond (19) and the circulating pond (22) are connected through a water supply pipe (23) provided with a water pump, the water supply pipe (23) is sequentially provided with a disinfection component (20) and a filtering component (21), the circulating pond (22) and the aquaculture pond (1) are connected through a drain pipe (14), a drain port of the drain pipe (14) is arranged above the aquaculture pond (1), a high-pressure nozzle (15) provided with a negative pressure pump is arranged on the drain port, and an atomizer (16) is arranged on the high-pressure nozzle (15); The top of the strip-shaped sewage sub-block (3) is provided with a sewage guide top cone (31), a funnel-shaped sewage guide groove (4) is formed between two adjacent sewage guide top cones (31), and the bottom of the sewage guide groove (4) is communicated with the top of the sewage discharge channel (5); A first leakage prevention net (2) is arranged in the sewage guide groove (4), a second leakage prevention net (7) is arranged in the sewage discharge channel (5), the first leakage prevention net (2) prevents large pieces of sundries from entering the sewage discharge channel (5), the second leakage prevention net (7) prevents shrimps from entering the sewage collecting groove (6) through the sewage discharge channel (5), sludge between the first leakage prevention net (2) and the second leakage prevention net (7) provides a shelter space for shrimps, and the bottom surface of the sewage collecting groove (6) is arranged to be inclined, and the communication position of the sewage collecting groove (6) and the sludge well (10) is located at the lowest position of the bottom surface of the sewage collecting groove (6); The disinfection component (20) comprises a protection cylinder (2001), a sealing cap (2002) is arranged at the upper end of the protection cylinder (2001), a water inlet hole (2003) communicated with the protection cylinder (2001) is arranged on the sealing cap (2002), a water outlet hole (2004) is arranged at the bottom of the protection cylinder (2001), a plurality of mounting racks are arranged in the vertical direction of the protection cylinder (2001) in a gap arrangement mode, and a plurality of ultraviolet sterilization lamps (2005) are arranged on the mounting racks. The mounting rack comprises a plurality of horizontal mounting strips (2006), one end of the plurality of mounting strips (2006) is fixedly connected, the other end of the plurality of mounting strips (2006) is connected with the inner side wall of the protection cylinder (2001), and the plurality of mounting strips (2006) are uniformly arranged in the circumferential direction of the inner side wall of the protection cylinder (2001), the plurality of mounting strips (2006) on adjacent two mounting racks are arranged alternately, and a plurality of ultraviolet sterilization lamps (2005) are arranged on each mounting strip (2006). A baffle ring (2007) is arranged in the water inlet hole (2003), the water inlet side of the baffle ring (2007) abuts against a filter disc (2008), a water passing disc (2009) is arranged in the protection cylinder (2001) between the water inlet hole (2003) and the mounting rack, and a plurality of water passing holes are uniformly arranged on the water passing disc (2009).

2. The shrimp pond purification apparatus according to claim 1, characterized by The filter member (21) comprises a filter box (211), a water inlet (212) and a water outlet (213) are arranged at the top and bottom of the filter box (211) respectively, a water distribution pipe (214) in communication with the water inlet (212) is arranged in the filter box (211), the water distribution pipe (214) is horizontally arranged, a plurality of water sprayers (217) are uniformly arranged at the bottom of the water distribution pipe (214), a primary filter (215) is arranged in the filter box (211) below the water sprayers (217), and a secondary filter (216) is arranged in the gap below the primary filter (215).

3. The shrimp pond purification apparatus according to claim 1, wherein A collecting frame (18) is arranged at the top of the side wall of the standing pool (19), and the water outlet of the water suction pipe (17) is arranged in the collecting frame (18).

4. The purification method of shrimp pond purification apparatus according to any one of claims 1 to 3, characterized by, The method comprises the following steps: S1: when the water in the culture pond (1) needs to be treated, step S2 is performed; when the sludge in the culture pond (1) needs to be recycled, step S6 is performed; S2: the water pump on the water suction pipe (17) is started, and the pond water in the culture pond (1) is pumped into the standing pool (19); S3: the flocculating agent, a certain amount of acetic acid, gypsum powder and / or sodium humate are added, the sludge in the pond water is precipitated, and the pH value is neutralized; S4: the water pump on the water supply pipe (23) is started, the pond water in the standing pool (19) is sterilized and disinfected through the disinfection member (20) first, then filtered through the filter member (21), and finally discharged into the circulating pool (22); S5: after the pond water is exposed to the sun for a certain period of time in the circulating pool (22), the negative pressure pump is driven, the pond water in the circulating pool (22) is pumped to the high-pressure nozzle (15) through the drain pipe (14), and then atomized by the atomizer (16) and sprayed into the culture pond (1); S6: the sludge pump (13) is started, the sludge in the sludge collecting tank (6) is pumped into the sedimentation tank (11) through the recycling pipeline (9) for precipitation, until the supernatant is separated from the upper layer of the sludge, the supernatant is pumped out and used for crop irrigation, and the bottom sludge is pumped out and used as plant fertilizer.

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