Aquaculture system with high efficient utilization of recirculating water engineering

Abstract

The utility model discloses a kind of aquaculture systems of high-efficiency utilization circulating water engineering, including pond, water quality comprehensive treatment area, onshore solid-liquid separation and tail water treatment area, onshore instrument equipment and its control area;The bottom of pond is equipped with pond sewage collection port connection sewage temporary storage well, and air-lift water pushing device is driven water body cyclone sewage collection around ring cloth;Water quality comprehensive treatment area is equipped with sedimentation zone, filter area, air-lift water lifting oxygenation zone, brush filter area and aquatic plant purification zone along water flow direction;Onshore solid-liquid separation and tail water treatment area extract sewage by vacuum excrement pumping device, after vertical flow precipitation, biochemical filtration and ultraviolet sterilization, tail water backflow aquatic plant purification zone;Onshore instrument equipment and its control area integrated oxygenation system, water quality monitoring, automatic bait feeder, system control.The utility model is through cyclone sewage collection, multistage solid-liquid separation and dynamic plant purification, realize sewage efficient removal and water recycling, with the characteristics of high sewage collection efficiency, water quality regulation precision, resource recycling.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture engineering technology, and more specifically to an aquaculture pond system that efficiently utilizes a recirculating water system. Background Technology

[0002] Pond aquaculture remains the most prevalent aquaculture method worldwide. However, its closed and structurally limited nature leads to problems such as water waste, limited variety of farmed species, increasing ecological pressure, high energy consumption, and high labor costs. With socio-economic development and growing emphasis on the ecological environment, recirculating aquaculture systems—characterized by high density, low energy consumption, and ecological and economical operation—are becoming a key focus in the aquaculture industry.

[0003] To address the problems of traditional pond aquaculture, an engineered ecological aquaculture system has emerged. This system involves constructing rectangular troughs within the pond, equipped with air-lift propulsion devices at the front and wastewater collection and discharge devices at the rear. Multiple troughs are arranged side-by-side, occupying 2% to 5% of the pond's area. The troughs serve as the aquaculture zone, where fish are intensively raised at high density. The pond itself acts as a purification zone, primarily used for water purification, and for stocking some feed-free or low-feed species and planting aquatic plants. While this model offers advantages such as land conservation, energy efficiency, high efficiency, and emission reduction, the wastewater collection and discharge devices at the rear have low suction efficiency. This results in a large amount of fish waste not being discharged from the aquaculture troughs in a timely manner, returning to the pond water with the circulating water flow. This burdens the pond's purification zone, causing the water returning to the aquaculture troughs after purification to fail to meet the required standards for aquaculture.

[0004] Chinese patent CN113396852B authorizes an aquaculture pond utilizing a recirculating water system. The pond has a sedimentation zone at the right end, followed by a pre-filtration zone and a post-filtration zone, with a central suction port. This invention achieves high-efficiency dissolved oxygenation through the pre-filtration zone, air lifter, and post-filtration zone. The pre-filtration zone traps and stores water from the sedimentation zone, while the bottom air lifter aerates the water from bottom to top, allowing each layer of water to fully contact with air. The resulting thrust propels the water towards the post-filtration zone, repeating the aeration process, and the discharged water is rich in oxygen. Compared to existing technologies, this pond has improved oxygenation efficiency. However, the patent mentions that only a small portion of the aquaculture water undergoes filtration through a microfilter; the vast majority passes through the first, second, third, and fourth filters mentioned in the patent. These filters lack backwashing devices, making them prone to clogging, or their large pores primarily function as fish traps. The majority of larger suspended particles enter the protein skimmer and biological filter, hindering their water purification function. This system requires further improvement. Utility Model Content

[0005] The purpose of this invention is to provide an efficient aquaculture pond system that utilizes a recirculating water system. This system can efficiently collect and remove sediment and suspended solids from the aquaculture pond and purify the water. It is energy-saving, environmentally friendly, significantly reduces aquaculture costs, and generates high economic output.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an efficient aquaculture pond system utilizing a circulating water system, comprising a pond, a comprehensive water treatment area set up near the bank of the pond, an onshore solid-liquid separation and tailwater treatment area, and an onshore instrument and equipment control area set up on the bank of the pond.

[0007] 1) Pond: The bottom of the pond is inverted cone-shaped, and a sludge collection outlet is provided at the lowest point of the pond bottom. The entire pond is covered with a geomembrane. The upper port of the sludge storage well is connected to the sludge collection outlet. A water-blocking wall is set up inside the pond to separate the pond from the comprehensive water treatment area. Multiple air-lifting and water-pushing devices are installed around the pond. The air-lifting and water-pushing devices are arranged in a circular array with the sludge collection outlet as the center. They are used to push the water around the sludge collection outlet to form a swirling flow, so that the aquaculture sediment sludge is collected in the sludge storage well. A fish-blocking net is set at the upper port of the sludge storage well.

[0008] 2) Comprehensive water treatment area: The comprehensive water treatment area is arranged in sequence along the water flow direction, including sedimentation area, filtration area, air lift water oxygenation area, brush filtration area and aquatic plant purification area; the sedimentation area is equipped with sedimentation area sludge collection well, the filtration area is equipped with backwash sludge discharge well, and the brush filtration area is equipped with brush area sludge collection well.

[0009] 3) Onshore solid-liquid separation and effluent treatment area: The onshore solid-liquid separation and effluent treatment area includes a vacuum sewage pumping device, an onshore vertical flow sedimentation tank, a biological filter tank, and an ultraviolet sterilizer; the inlet of the vacuum sewage pumping device is connected to the sewage storage well at the bottom of the pond, the sewage collection well in the sedimentation area, the backwash sewage discharge well, and the sewage collection well in the brush area through a sewage pumping valve and a sewage pumping pipe, respectively; the outlet of the vacuum sewage pumping device is connected in sequence to the onshore vertical flow sedimentation tank, the biological filter tank, and the ultraviolet sterilizer, and finally connected to the aquatic plant purification area at the end of the comprehensive water treatment area.

[0010] 4) Onshore Instruments and Equipment and Control Area: The onshore instruments and equipment and control area is equipped with a high-pressure aerator and its piping system, a pure oxygen generator or liquid oxygen device, a high dissolved oxygen water preparation device, a water quality parameter monitoring and alarm system, an automatic feeder, and a system PLC control device. The high-pressure aerator and its piping system are connected to the air-lift water-lifting aerator in the air-lift water-lifting aeration area and the air-lift water-pushing device in the pond. The pure oxygen generator or liquid oxygen device is connected to the high dissolved oxygen water preparation device, and the outlet of the high dissolved oxygen water preparation device is connected to the pond. The sensors of the water quality parameter monitoring and alarm system are installed in the pond to monitor water quality indicators. The feeding port of the automatic feeder is located directly above the pond's sewage collection port. The system PLC control device controls the air output of the high-pressure aerator and the high dissolved oxygen water preparation volume according to the water quality indicators, and controls the feeding at regular intervals.

[0011] Furthermore, the area of ​​the comprehensive water treatment zone accounts for 0.5% to 2% of the pond's surface area.

[0012] Furthermore, the sedimentation zone is also equipped with a pre-sedimentation fish barrier net and an inclined tube placement area, wherein the inclined tube array is fixedly placed in the inclined tube placement area by a frame.

[0013] Furthermore, the filtration zone is also equipped with a pre-filter screen, as well as a coarse microfilter and a fine microfilter connected in series; the water pump and its pipeline are respectively connected to the rear end of the coarse microfilter and the fine microfilter, and the backwash water from the backwash pump and its pipeline is sprayed onto the filter screens of the coarse microfilter and the fine microfilter.

[0014] Furthermore, the coarse filter microfilter has a filtration accuracy of 20-60 mesh, and the fine filter microfilter has a filtration accuracy of 120-200 mesh.

[0015] Furthermore, a water baffle is provided at the rear end of the airlift water aeration zone, and the airlift water aerator is installed on the water baffle, with the outlet of the airlift water aerator higher than the upper edge of the water baffle.

[0016] Furthermore, the brush filter area is also provided with a brush array, which is fixedly placed in the brush filter area by a brush hanging device.

[0017] Furthermore, the aquatic plant purification area is equipped with a floating plant bed, and the types of aquatic plants planted on the floating plant bed are dynamically adjusted according to the water temperature; when the water temperature is between 20 and 35°C, water spinach is preferred, and when the water temperature is between 10 and 20°C, water celery is preferred.

[0018] Furthermore, the vacuum sewage pumping device has a bottom sewage discharge I at the bottom, the onshore vertical flow sedimentation tank has a bottom sewage discharge II at the bottom, and the biochemical filter tank has a bottom sewage discharge III at the bottom. Each bottom sewage discharge is connected to the sewage collection tank and the fermentation tank through a sewage discharge pipe.

[0019] The present invention provides an efficient aquaculture pond system that utilizes a circulating water system, which has the following beneficial effects.

[0020] 1) Efficient waste treatment and resource recycling: The pond uses an air-lift water-pushing device to generate swirling waste collection, which concentrates the sediment from aquaculture in a waste storage well. Then, it undergoes multi-stage treatment in conjunction with the comprehensive water treatment area and the onshore solid-liquid separation and tailwater treatment area. The waste after solid-liquid separation can be made into organic fertilizer for planting, realizing resource recycling, reducing environmental pollution, reducing dependence on external resources, and conforming to the concept of sustainable development.

[0021] 2) Comprehensive water quality treatment: The comprehensive water quality treatment area is set up with multiple functional zones to treat the water body through sedimentation, filtration, oxygenation and purification, which effectively improves the water quality, maintains the stability of water indicators such as ammonia nitrogen, nitrite, pH value and dissolved oxygen, creates a good water environment for aquaculture, reduces the incidence of fish diseases and improves the survival rate of aquaculture.

[0022] 3) Precise aquaculture management and monitoring: Equipped with various devices, such as high-pressure aeration fans and their pipeline systems, pure oxygen generators or liquid oxygen devices, high dissolved oxygen water preparation equipment, water quality parameter monitoring and alarm systems, automatic feeders and system PLC control devices, etc., to achieve intelligent and precise aquaculture management, improve aquaculture efficiency, save labor costs, and ensure the yield and quality of aquatic products. Attached Figure Description

[0023] Figure 1 is a schematic diagram of an aquaculture pond system that utilizes a circulating water system according to this utility model.

[0024] Figure 2 is a schematic diagram of the sedimentation zone of the comprehensive water treatment area of ​​this utility model.

[0025] Figure 3 is a schematic diagram of the filtration area of ​​the comprehensive water treatment zone of this utility model.

[0026] Figure 4 is a schematic diagram of the airlift water extraction and oxygenation zone of the comprehensive water treatment area of ​​this utility model.

[0027] Figure 5 is a schematic diagram of the brush filter area in the comprehensive water treatment zone of this utility model.

[0028] Figure 6 is a schematic diagram of the aquatic plant purification zone in the comprehensive water treatment area of ​​this utility model.

[0029] Figure 7 is a schematic diagram of the onshore solid-liquid separation and tailwater treatment area of ​​this utility model.

[0030] Figure 8 is a schematic diagram of the shore-based instrument and equipment and its control area of ​​this utility model.

[0031] Figure 9 is another schematic diagram of the aquaculture pond system of this utility model.

[0032] The diagram is labeled as follows: 1. Pond; 101. Water barrier wall; 102. Geomembrane; 103. Pond sewage collection outlet; 104. Air lift water-pushing device; 105. Aquaculture sedimentation waste; 106. Waste storage well; 107. Pond bottom fish barrier net; 2. Integrated water treatment area; 201. Sedimentation zone; 2011. Sedimentation zone sewage collection well; 2012. Sedimentation zone pre-positioned fish barrier net; 2013. Inclined tube placement area; 2014. Inclined tube array. 2015, Frame; 202, Filtration Zone; 2021, Backwash Sewage Discharge Well; 2022, Pre-filter Screen for Filtration Zone; 2023, Coarse Filter Microfilter; 2024, Fine Filter Microfilter; 2025, Water Pump; 2026, Backwash Pump; 203, Air Lifting and Water Oxygenation Zone; 2031, Air Lifting and Water Oxygenator; 2032, Water Separator; 204, Brush Filtration Zone; 2041, Brush Zone Sewage Collection Well; 2042, Brush... 2043. Brush array; 205. Brush hanging device; 205. Aquatic plant purification zone; 2051. Floating plant bed; 2052. Water spinach; 2053. Water celery; 3. Onshore solid-liquid separation and tailwater treatment zone; 301. Vacuum sewage pumping device; 3011. Bottom discharge I; 302. Onshore vertical flow sedimentation tank; 3021. Bottom discharge II; 303. Biochemical filter tank; 3031. Bottom discharge III; 304. Sewage discharge. Pipelines, 305. Sewage collection tank, 306. Fermentation tank, 307. Ultraviolet sterilizer, 308. Sewage pumping pipeline, 309. Sewage pumping valve; 4. Onshore instruments and equipment and their control area, 401. High-pressure oxygenation fan and its pipeline system, 402. Pure oxygen generator or liquid oxygen device, 403. High dissolved oxygen water preparation equipment, 404. Water quality parameter monitoring and alarm system, 405. Automatic feeder, 406. System PLC control device. Detailed Implementation

[0033] The present invention will now be further described in conjunction with the embodiments and accompanying drawings to fully understand its purpose, features and effects.

[0034] Example 1: As Figures 1-8 As shown, an efficient aquaculture pond system utilizing a recirculating water system includes a pond 1, a comprehensive water treatment area 2 located near the bank of the pond 1, an onshore solid-liquid separation and tailwater treatment area 3, and an onshore instrument and equipment control area 4 located on the bank of the pond 1.

[0035] 1) Pond 1: The bottom of Pond 1 is inverted cone-shaped. A pond sludge collection outlet 103 is provided at the lowest point of the bottom of Pond 1. The entire Pond 1 is covered with a geomembrane 102. The upper end of the sludge storage well 106 is connected to the pond sludge collection outlet 103. A water-blocking wall 101 is provided inside Pond 1, which separates Pond 1 from the water quality comprehensive treatment area 2. Multiple air-lifting and water-pushing devices 104 are installed around the pond. The air-lifting and water-pushing devices 104 are arranged in a circular array with the pond sludge collection outlet 103 as the center. They push the water around the pond sludge collection outlet 103 to generate swirling currents, and concentrate the aquaculture sediment sludge 105, such as uneaten feed and fish feces, into the sludge storage well 106. A pond bottom fish-blocking net 107 is provided at the upper end of the sludge storage well 106.

[0036] 2) Integrated Water Treatment Zone 2: The integrated water treatment zone 2 is arranged sequentially along the water flow direction as follows: sedimentation zone 201, filtration zone 202, airlift and oxygenation zone 203, brush filtration zone 204, and aquatic plant purification zone 205. Sedimentation zone 201 is equipped with a sedimentation collection well 2011, filtration zone 202 is equipped with a backwash discharge well 2021, and brush filtration zone 204 is equipped with a brush collection well 2041. The area of ​​the integrated water treatment zone 2 accounts for 0.5% to 2% of the total water surface area of ​​pond 1. The sedimentation zone 201 is also equipped with a pre-sedimentation fish barrier net 2012 and an inclined tube placement area 2013. The inclined tube array 2014 is fixedly placed in the inclined tube placement area 2013 by a frame 2015. The filtration zone 202 is further equipped with a pre-filter screen 2022, and a coarse-mesh microfilter 2023 and a fine-mesh microfilter 2024 connected in series. The water pump 2025 and its pipeline are respectively connected to the rear ends of the coarse-mesh microfilter 2023 and the fine-mesh microfilter 2024. The backwash water from the backwash pump 2026 and its pipeline is sprayed onto the filter screens of the coarse-mesh microfilter 2023 and the fine-mesh microfilter 2024. The coarse-mesh microfilter has a filtration accuracy of 20-60 mesh, and the fine-mesh microfilter has a filtration accuracy of 120-200 mesh. The rear end of the airlift water aeration zone 203 is also equipped with a baffle plate 2032. The airlift water aerator 2031 is installed on the baffle plate 2032, and the outlet of the airlift water aerator 2031 is higher than the upper edge of the baffle plate 2032. The brush filtration zone 204 is also equipped with a brush array 2042, which is fixedly placed in the brush filtration zone 204 by a brush hanging device 2043. The aquatic plant purification zone 205 is equipped with a plant floating bed 2051, and the types of aquatic plants planted on the plant floating bed 2051 are dynamically adjusted according to the water temperature (e.g., water spinach is planted when the water temperature is 20-35℃, and water celery is planted when the water temperature is 10-20℃).

[0037] 3) Onshore solid-liquid separation and effluent treatment area 3: The onshore solid-liquid separation and effluent treatment area 3 includes a vacuum sewage suction device 301, an onshore vertical flow sedimentation tank 302, a biological filter tank 303, and an ultraviolet sterilizer 307; the inlet of the vacuum sewage suction device 301 is connected to the sludge storage well 106 at the bottom of the pond, the sedimentation zone sludge collection well 2011, the backwash discharge well 2021, and the brush zone sludge collection well 2041 via a sludge suction valve 309 and a sludge suction pipe 308, respectively; the vacuum sewage suction device 301... The outlet is sequentially connected to the onshore vertical flow sedimentation tank 302, the biochemical filter tank 303, and the ultraviolet sterilizer 307, and finally connected to the aquatic plant purification zone 205 at the end of the water quality comprehensive treatment zone 2; the bottom of the vacuum sewage pumping device 301 is equipped with bottom sewage discharge I 3011, the bottom of the onshore vertical flow sedimentation tank 302 is equipped with bottom sewage discharge II 3021, and the bottom of the biochemical filter tank 303 is equipped with bottom sewage discharge III 3031. Each bottom sewage discharge is connected to the sewage collection tank 305 and the fermentation tank 306 through the sewage discharge pipe 304.

[0038] 4) Onshore Instruments and Equipment and Control Area 4: The onshore instruments and equipment and control area 4 is equipped with a high-pressure aeration fan and its piping system 401, a pure oxygen generator or liquid oxygen device 402, a high dissolved oxygen water preparation device 403, a water quality parameter monitoring and alarm system 404, an automatic feeder 405, and a system PLC control device 406; the high-pressure aeration fan and its piping system 401 are connected to the airlift water aerator 2031 in the airlift water aeration area 203 and the airlift water pushing device 1 in the pond 1. 04; The pure oxygen generator or liquid oxygen device 402 is connected to the high dissolved oxygen water preparation equipment 403, and the outlet of the high dissolved oxygen water preparation equipment 403 is connected to the pond 1; The sensors of the water quality parameter monitoring and alarm system 404 are installed in the pond 1 to monitor water quality indicators; The feeding port of the automatic feeder 405 is located in the area directly above the pond sewage collection port 103; The system PLC control device 406 controls the air output of the high pressure aeration fan and the amount of high dissolved oxygen water prepared according to the water quality indicators, and controls the feeding at regular intervals.

[0039] The breeding methods of this system include feeding, waste collection, waste treatment, water quality control, grazing, and planting.

[0040] (a) Feeding: Feed is fed above the pond's sewage collection outlet 103 by an automatic feeder 405. The feeding area is located above the pond's sewage collection outlet 103. Uneaten feed can fall into the area around the sewage storage well 106 at the bottom of the pond, making it convenient to collect the uneaten feed into the sewage storage well 106. Depending on the different species being raised and their different growth stages, feed 2 to 4 times a day. The amount of feed should be such that the fish are about 80% full each time. During the feeding process, the fish move vigorously while eating, and their oxygen consumption increases significantly. Therefore, when feeding, the air lift and water push device 104 or the high dissolved oxygen water preparation equipment 403 should be turned on to increase the dissolved oxygen in the feeding area, so that the dissolved oxygen in the feeding area is ≥5ppm during the feeding process.

[0041] (b) Waste collection: Two hours after feeding, during the fish defecation period, turn on the multiple air-lifting and water-pushing devices 104 placed around the pond and keep them for 10 to 25 minutes to push the water around the pond waste collection port 103 to generate swirling flow, and concentrate the aquaculture sediment 105 such as uneaten feed and fish feces into the waste storage well 106.

[0042] (c) Waste treatment: Every hour, the sedimented waste 105 from the aquaculture is pumped from the waste storage well 106 through the sewage pumping pipe 308 to the vacuum sewage pumping device 301 on the shore for solid-liquid separation. The separated tailwater is then settled in the vertical flow sedimentation tank 302 on the shore, biochemically filtered by the biochemical filter tank 303, and sterilized by the ultraviolet sterilizer 307 before being returned to the aquatic plant purification area 205.

[0043] (d) Water quality control: Start the airlift water aerator 2031. The pond water flows sequentially through the water treatment zone 2, including the inclined tube array 2014 (50mm diameter, 1m length, 60° inclination), the coarse filter microfilter 2023 (20-60 mesh), the fine filter microfilter 2024 (120-200 mesh), the airlift water aerator 2031, the brush array 2042 (100mm diameter, 1.2m length, 140mm spacing), and the floating plant bed 2051 (for water spinach) to purify the aquaculture water. The water quality parameters (dissolved oxygen, ammonia nitrogen, nitrite, pH) of pond 1 are monitored in real time through the water quality parameter monitoring and alarm system 404. When the dissolved oxygen is below 5ppm, start the airlift water pusher 104 or the high dissolved oxygen water preparation equipment 403 to oxygenate the water in pond 1. During the aquaculture cycle, the dissolved oxygen in pond 1 is ≥5ppm.

[0044] (e) Stocking and Planting: Taking a fishpond 1 with a surface area of ​​10 mu (approximately 6.7 hectares) and an average depth of 2 meters as an example, when the water temperature reaches above 15℃, stock pond 1 with high-value farmed fish, such as 90,000 large-sized California bass fry (50g / fish). In addition to the farmed fish, stock 200kg / mu of filter-feeding fish such as silver carp and bighead carp, with a size of 0.5kg / fish, with a ratio of silver carp to bighead carp of approximately 1:3; stock 250kg / mu of benthic filter-omnivorous animals such as snails to digest and absorb uneaten feed and organic debris; and stock 20 grass carp / mu, with a size of 0.5kg / fish, to control the excessive reproduction of snails. Plant water spinach in the aquatic plant purification area 205. The breeding cycle is 180 days. Assuming a survival rate of 85%, the final number of fish raised is approximately 76,500, yielding 45,900 kilograms of adult fish (600g / fish), with a yield of 4,590 kilograms per mu.

[0045] Example 2: Figure 9As shown, taking a standard pond with an area of ​​20 mu, a length-to-width ratio of 2:1, and a water depth of 2 meters as an example, we design an aquaculture pond system that utilizes a recirculating water system.

[0046] First, the pond is divided into two connected square ponds. The bottom of each pond is an inverted cone shape. At the lowest point of the bottom of each pond, there is a pond sludge collection port 103. The upper end of the sludge storage well 106 is connected to the pond sludge collection port 103. Four air-lifting and water-pushing devices 104 are installed around each sludge storage well 106.

[0047] These airlift and water-pushing devices 104 have flexible functions. When the pond needs oxygenation, they can push the water around the two waste storage wells 106 to generate slow, opposite-swirls of waste collection, promoting the uniform distribution of dissolved oxygen in the water. When the pond needs to carry out waste collection and discharge operations, increasing the air intake of the airlift and water-pushing devices 104 will push the water around the two waste storage wells 106 to generate fast, opposite-swirls of waste collection. During this process, uneaten feed, fish feces, and other aquaculture sediment 105 will be concentrated and settled in each waste storage well 106.

[0048] The vacuum sewage pumping device 301 pumps the aquaculture sewage that has accumulated in the sewage storage well 106 to the shore, removing it from the aquaculture water body, thereby effectively maintaining the cleanliness of the pond water.

[0049] In this aquaculture system, the comprehensive water treatment zone 2 is located in the middle of the length of the pond. This zone is designed as a rectangle. This layout can minimize the obstruction of the water vortex in the pond and ensure that the vortex generated by the air lift and water pusher 104 can operate smoothly, thereby ensuring the efficient operation of the entire aquaculture pond system.

[0050] The above description is only a specific embodiment of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An efficient aquaculture pond system utilizing a recirculating water system, comprising a pond (1), wherein a comprehensive water treatment area (2) is provided on the bank of the pond (1), and an onshore solid-liquid separation and tailwater treatment area (3), and an onshore instrument and equipment control area (4) are provided on the bank of the pond (1), characterized in that: The bottom of the pond (1) is an inverted cone shape. A pond sludge collection outlet (103) is provided at the lowest point of the bottom of the pond (1). The pond (1) is covered with a geomembrane (102). A waste storage well (106) is provided below the pond sludge collection outlet (103). The upper end of the waste storage well (106) is connected to the pond sludge collection outlet (103). A water-blocking wall (101) is provided inside the pond (1) to separate the pond (1) from the water quality comprehensive treatment area (2). Multiple air-lifting and water-pushing devices (104) are installed around the pond (1). The air-lifting and water-pushing devices (104) are arranged in a circular array with the pond sludge collection outlet (103) as the center. They are used to push the water around the pond sludge collection outlet (103) to form a swirling flow, so that the aquaculture sediment (105) gathers in the waste storage well (106). A fish-blocking net (107) is provided at the upper end of the waste storage well (106). The water treatment zone (2) is arranged in sequence along the water flow direction as a sedimentation zone (201), a filtration zone (202), an airlift water oxygenation zone (203), a brush filtration zone (204), and an aquatic plant purification zone (205); the sedimentation zone (201) is equipped with a sedimentation zone collection well (2011), the filtration zone (202) is equipped with a backwash discharge well (2021), and the brush filtration zone (204) is equipped with a brush zone collection well (2041); The onshore solid-liquid separation and tailwater treatment area (3) includes a vacuum sewage pumping device (301), an onshore vertical flow sedimentation tank (302), a biochemical filter tank (303), and an ultraviolet sterilizer (307). The inlet of the vacuum sewage pumping device (301) is connected to the pond bottom sewage storage well (106), sedimentation area sewage collection well (2011), backwash sewage discharge well (2021), and brush area sewage collection well (2041) through a sewage pumping valve (309) and a sewage pumping pipe (308), respectively. The outlet of the vacuum sewage pumping device (301) is connected in sequence to the onshore vertical flow sedimentation tank (302), biochemical filter tank (303), and ultraviolet sterilizer (307), and finally connected to the aquatic plant purification area (205) at the end of the water quality comprehensive treatment area (2). The shore-based instrumentation and control area (4) is equipped with a high-pressure oxygenation fan and its pipeline system (401), a pure oxygen generator or liquid oxygen device (402), a high dissolved oxygen water preparation device (403), a water quality parameter monitoring and alarm system (404), an automatic feeder (405), and a system PLC control device (406). The high-pressure oxygenation fan and its pipeline system (401) are connected to the air-lift water-lifting oxygenation machine (2031) in the air-lift water-lifting oxygenation area (203) and the air-lift water-pushing device (104) in the pond (1). The pure oxygen generator or liquid oxygen device (402) is connected to the high dissolved oxygen water preparation device (403), and the outlet of the high dissolved oxygen water preparation device (403) is connected to the pond (1). The sensors of the water quality parameter monitoring and alarm system (404) are installed in the pond (1) to monitor water quality indicators. The feeding port of the automatic feeder (405) is located in the area directly above the pond's sewage collection port (103). The system PLC control device (406) controls the air output of the high-pressure aeration fan and the amount of high dissolved oxygen water prepared according to the water quality indicators, and controls the feeding at regular intervals.

2. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The area of ​​the comprehensive water treatment area (2) accounts for 0.5% to 2% of the surface area of ​​the pond (1).

3. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The sedimentation zone (201) is also provided with a pre-sedimentation fish barrier net (2012) and an inclined tube placement area (2013). An inclined tube array (2014) is fixedly placed in the inclined tube placement area (2013) by a frame (2015).

4. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The filtration zone (202) is also equipped with a pre-filter screen (2022) and a coarse screen microfilter (2023) and a fine screen microfilter (2024) connected in series; the rear end of the coarse screen microfilter (2023) and the fine screen microfilter (2024) is connected to a water pump (2025) and its pipeline, and the filter screen side of the coarse screen microfilter (2023) and the fine screen microfilter (2024) is equipped with a backwash pump (2026) and its pipeline for spraying water onto it.

5. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 4, characterized in that: The coarse filter microfilter has a filtration accuracy of 20-60 mesh, and the fine filter microfilter has a filtration accuracy of 120-200 mesh.

6. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The rear end of the airlift water oxygenation zone (203) is also provided with a water baffle plate (2032), and the airlift water oxygenator (2031) is installed on the water baffle plate (2032), and the outlet of the airlift water oxygenator (2031) is higher than the upper edge of the water baffle plate (2032).

7. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The brush filter area (204) is also provided with a brush array (2042), which is fixedly placed in the brush filter area (204) by a brush hanging device (2043).

8. The aquaculture pond system for high-efficiency utilization of recirculating water systems according to claim 1, characterized in that: The aquatic plant purification area (205) is equipped with a plant floating bed (2051), and the types of aquatic plants planted on the plant floating bed (2051) are dynamically adjusted according to the water temperature; when the water temperature is 20-35℃, the aquatic plant is water spinach (2052), and when the water temperature is 10-20℃, the aquatic plant is water celery (2053).

9. The aquaculture pond system for efficient utilization of recirculating water systems according to claim 1, characterized in that: The vacuum sewage pumping device (301) has a bottom sewage discharge I (3011) at the bottom, the vertical flow sedimentation tank (302) on the shore has a bottom sewage discharge II (3021) at the bottom, and the biochemical filter tank (303) has a bottom sewage discharge III (3031) at the bottom. Each bottom sewage discharge is connected to the sewage collection tank (305) and the fermentation tank (306) through a sewage discharge pipe (304).

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