A circulating flow water ecological breeding method combined with a standardized fish pond

Abstract

The application discloses a kind of circulating flow water ecological breeding method combined with standardization fish pond, it is related to agricultural breeding field;The circulating flow water ecological breeding method combined with standardization fish pond, by the standardization circulating flow water breeding facility and intelligent management and control core system are deeply integrated, breeding density can reach 2-3 times of traditional mode, single tank output is greatly improved, while accurate feeding management makes bait coefficient significantly reduce, and feed utilization rate is significantly improved;Through 24 hours online water quality monitoring and automatic control, so that water temperature, dissolved oxygen, pH value and other key indicators are kept stable throughout the process, effectively reducing fish stress response and disease occurrence. Through the collection device, fish feces and residual bait are efficiently collected, and the resource transformation of breeding waste and zero discharge or standard discharge of tail water are basically achieved, and the environmental benefits are outstanding. Compared with traditional fish pond breeding technology, the present application has good economic and ecological comprehensive benefits and good popularization and application value.

Description

Technical Field

[0001] This invention relates to agricultural aquaculture technology, specifically to a recirculating aquaculture method that combines standardized fishponds. Background Technology

[0002] The global aquaculture industry continues to expand, with total aquatic product output steadily increasing, effectively ensuring market supply. However, traditional aquaculture models have significant shortcomings in water resource utilization. Most existing standardized fishponds employ open, direct-discharge systems, where water is discharged directly after a single use, resulting in severe water resource depletion. Data shows that producing 1 kg of aquatic product requires several tons of water, exacerbating regional water supply and demand imbalances. Furthermore, most farms only implement simple sedimentation treatment for wastewater, failing to thoroughly degrade pollutants such as uneaten feed, nitrogen and phosphorus salts, and pathogens. Direct discharge of wastewater easily induces eutrophication in natural water bodies, causing cyanobacterial blooms, sudden drops in dissolved oxygen, and other problems, leading to the death of wild aquatic organisms and disrupting the original ecological balance of watersheds. This not only contradicts the development direction of water-saving agriculture but also brings continuous pressure to water environment management.

[0003] In addition, traditional aquaculture has shortcomings in ecological regulation. It generally relies on chemical agents to control diseases in aquaculture production. Long-term use of drugs will inhibit the beneficial microbial community in the water, weaken the water's self-purification ability, and induce drug resistance in pathogens. Drug residues adhere to aquatic products, which not only reduce the safety and quality of the products for consumption, but also accumulate along the food chain and threaten human health. Therefore, it is necessary to improve the existing fishpond aquaculture methods. Summary of the Invention

[0004] The purpose of this invention is to provide a recirculating aquaculture method that combines standardized fishponds to solve the problems of heavy ecological burden and low product quality in existing fishpond aquaculture technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for recirculating aquaculture systems combined with standardized fishponds, comprising the following steps:

[0006] The pond was transformed into an east-west oriented rectangle, and a breeding trough with vertical walls, a tail sludge collection pond, and a large pond ecological purification area were constructed. Water-pushing aeration, bottom aeration, and backup power were installed, and water quality, water level, and equipment status sensors were deployed to form a standardized recirculating aquaculture hardware platform.

[0007] Deploy a central system consisting of a configuration module, a data acquisition module, a data analysis module, a decision control module, a report output module, and an early warning push module; initialize aquaculture species, water quality thresholds, equipment linkage logic, and feeding strategy parameters; and establish a closed loop for automatic sensor data acquisition, caching, and analysis.

[0008] Select suitable species, disinfect them, and then release the seedlings into the breeding tank to complete standardized stocking.

[0009] The system uses extruded floating feed to feed the animals and establish conditioned reflexes; it dynamically adjusts the feeding amount based on monitoring data, automatically pauses when abnormalities occur, and records complete feeding records.

[0010] The system maintains continuous operation of water pumping and oxygenation, with sensors monitoring water quality indicators 24 hours a day and the system automatically adjusting the oxygenation equipment. The aquaculture wastewater is treated in the collection pond and ecological purification area and then returned to the front end of the aquaculture tank, forming a cycle.

[0011] The sewage suction device is activated periodically to collect feces and uneaten feed, which are then converted into organic fertilizer through solid-liquid separation and fermentation. The supernatant is purified and returned to the pond, realizing the resource utilization of waste.

[0012] The system automatically integrates water quality, energy consumption and feeding data, performs aquaculture efficiency and water quality trend analysis, automatically generates aquaculture management reports and saves them locally by name according to time.

[0013] The system monitors data in real time and automatically triggers an alert when water quality exceeds standards or equipment malfunctions, sending the alert to management personnel. The management personnel can then remotely view and control the equipment, and the system automatically switches to backup power in case of serious abnormalities.

[0014] Preferably, the length-to-width ratio of the pond is close to 2:1, the average water depth is more than 2.5m, the area is 20-30 mu, and the slope ratio of the pond embankment is set to 1:2.5-3; a water retaining wall is constructed longitudinally in the middle of the pond, with a water passage of about 15m wide at one end of the water retaining wall and a breeding trough constructed at the other end.

[0015] Construct a group of 3 to 4 standardized breeding troughs in the pond. Each breeding trough is 22 to 27m long, 4 to 6m wide, and 2 to 2.5m deep. A water pushing area is set at the front end of the breeding trough, and a sludge suction area is set at the rear end. A sludge collection pond is built at the tail end of the breeding trough.

[0016] The area of ​​the large pond outside the aquaculture tanks is designated as an ecological purification zone, with the area ratio of the aquaculture tank area to the large pond purification zone being approximately 5:95. Filter-feeding fish are stocked and aquatic plants are planted in the ecological purification zone.

[0017] An oxygenation and aeration device is installed in the water-pushing area at the front end of the aquaculture tank; the power for water pushing and aeration is 100m per tank. 2 The aquaculture tank is equipped with a standard 1.6 kW power supply; bottom aeration equipment is installed on both sides of the bottom of the aquaculture tank and placed in the pre-reserved trench at the bottom of the tank.

[0018] Online water quality monitoring sensors are deployed in the aquaculture tanks and ecological purification areas to continuously monitor water temperature, dissolved oxygen, pH value, ammonia nitrogen, nitrite, and CO2 concentration 24 hours a day. Water level sensors are installed in the aquaculture tanks to monitor water level changes in real time. Operating status sensors are installed on aeration equipment, water pushing equipment, and sludge suction equipment to monitor the operating power, operating time, and fault status of the equipment. All sensors are connected to the central system via wired or wireless transmission.

[0019] Preferably, the configuration module is used to read environmental variables and operating parameters, and to adjust the parameters; the data acquisition module periodically accesses each sensor terminal via network protocol, and extracts water quality data, equipment operation data, and environmental data according to a preset acquisition frequency; the data analysis module integrates and processes the acquired water quality data, equipment data, and environmental data; the decision control module automatically generates control commands and sends them to each execution device based on the data analysis results; the report output module integrates and processes the acquired water quality data, equipment operation data, and aquaculture operation data, and automatically generates an aquaculture management report; the early warning push module automatically pushes early warning information to a designated receiving end via email or SMS when an abnormal situation is detected. After the user completes the configuration of email account, authorization code, server address, and receiving email, the system can automatically complete the early warning information push.

[0020] Preferably, after the standardized recirculating aquaculture hardware platform is built, the entire pond is disinfected with quicklime at a rate of 50 kg / mu, and the fish fry are disinfected by soaking in bleaching powder or potassium permanganate solution before being released into the pond. The time for releasing fish fry is from March to April each year.

[0021] Preferably, the central system regulates water quality based on water quality indicators. When the water temperature deviates from the range of 22-26℃, the system automatically activates the temperature control equipment for adjustment; when dissolved oxygen is below the set threshold, the system automatically activates the aeration equipment; when dissolved oxygen recovers to the range of 8-10 mg / L, the aeration power is automatically reduced; when the pH value of the pond water deviates from the set range monthly, the system prompts the management personnel to take adjustment measures; when ammonia nitrogen or nitrite exceeds the warning value, the system automatically increases the circulation flow of the ecological purification zone or prompts the activation of the tailwater treatment equipment; the water discharged from the aquaculture tank flows out from the sludge suction area at the tail end, passes through the sludge collection pond and the ecological purification zone, and then flows into the front end.

[0022] Preferably, the system automatically starts the sludge suction device 1 to 1.5 hours after each feeding, and automatically stops after running for about 0.5 hours, repeating the sludge suction twice. The sludge suction device pumps fish feces and uneaten feed from the tail of the aquaculture tank to the sludge collection tank. The sludge in the sludge collection tank is collected by the sludge suction device and then processed to make organic fertilizer. The sludge in the sludge collection tank is treated with EM bacteria and molasses for nitrification, and after fermentation, it is converted into organic fertilizer for use in surrounding farmland or aquatic plant cultivation.

[0023] Preferably, the system automatically collects and stores water quality data, equipment operation data, feeding data, and waste collection data, and integrates and analyzes the collected data. The analyzed data includes water quality trends, aquaculture efficiency, equipment performance, and abnormal events. After analysis, an aquaculture management report is automatically generated and automatically saved to the local directory by the system according to the time.

[0024] Compared with existing technologies, this invention provides a recirculating aquaculture system integrated with standardized fishponds. By deeply integrating standardized recirculating aquaculture facilities with an intelligent control system, the stocking density can be 2 to 3 times that of traditional methods, significantly increasing the yield per tank. Simultaneously, precise feeding management significantly reduces the feed conversion ratio and improves feed utilization. Through 24-hour online water quality monitoring and automatic control, key indicators such as water temperature, dissolved oxygen, and pH are kept stable throughout the process, effectively reducing fish stress and disease occurrence, and improving survival rates. A waste collection device efficiently collects fish feces and uneaten feed, which are then converted into organic fertilizer through solid-liquid separation and fermentation. The supernatant is treated and returned to the pond, essentially achieving resource-based transformation of aquaculture waste and zero or compliant discharge of tailwater, resulting in significant environmental benefits. The continuously flowing water in the tank keeps the fish in a counter-current state, promoting metabolism, making the fish meat firmer, with better taste and reduced earthy smell, significantly improving product quality. The intelligent management and control system enables automatic data collection, intelligent analysis, equipment linkage, and automatic report push, significantly reducing the workload of manual inspection and recording. Managers can monitor the aquaculture status in real time through remote terminals, significantly improving management efficiency and the scientific nature of decision-making. Compared with traditional fishpond aquaculture technology, this invention has multiple advantages such as high yield, high quality, environmental protection, and intelligence, resulting in significant comprehensive economic and ecological benefits and possessing good value for widespread application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 This is a schematic diagram of the process of a recirculating aquaculture system combined with a standardized fishpond, provided in an embodiment of the present invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] As attached Figure 1 As shown:

[0029] Example:

[0030] This invention provides a method for recirculating aquaculture systems combined with standardized fishponds, comprising the following steps:

[0031] Construction and renovation of standardized fishponds:

[0032] Select a pond with an area of ​​20-30 mu (approximately 1.3-2 hectares) as a standard aquaculture unit. The pond should be rectangular in shape, running east-west, with a length-to-width ratio of approximately 2:1, an average water depth of over 2.5 meters, a stable water source, and water quality meeting fishery water quality standards. It should also have independent inlet and outlet channels. There should be no industrial pollution sources around the pond, and transportation should be relatively convenient. The slope ratio of the pond embankment should be set at 1:2.5-3. Construct a retaining wall (earthen dam or brick-concrete structure) in the middle of the pond's longitudinal direction. Leave a water passage of approximately 15 meters at one end of the retaining wall, and construct aquaculture troughs at the other end.

[0033] Construct a group of 3-4 standardized flowing-water aquaculture tanks within the pond. Each tank should be 22-27m long, 4-6m wide, and 2-2.5m deep. The tank walls should be perpendicular to the horizontal plane at 90°, with a ring beam at the bottom and structural columns. High-quality steel reinforcement and cement should be used to ensure the walls are sturdy. The walls and bottom surfaces must be smooth and flat, with three grooves pre-drilled in the tank walls for inserting fish-blocking nets. The total area of ​​the aquaculture tanks should occupy approximately 1.5%-2.0% of the total pond area. The tank walls can be constructed using brick-concrete structures, stainless steel, fiberglass, or reinforced plastics. A water-pushing area (approximately 3m wide) should be installed at the front of the tank, and a sludge-collecting area (approximately 3m wide) at the rear. Both ends of the tank should be separated by metal or polyethylene mesh, with the mesh size determined based on the species being cultured. The fish-blocking nets should be made of stainless steel mesh.

[0034] Construct a sludge collection tank at the end of the aquaculture troughs. The size of the collection tank should be appropriate for the number of troughs; ideally, two interconnected collection tanks with a volume of 10m³ should be constructed for every three troughs. 3 The system consists of a submerged sludge collection tank. Located on the pond bank, the tank facilitates sludge collection and treatment. The sludge collection system includes suction nozzles, a suction pump, a moving track, a discharge trough, an automatic control device, and a circuit system. The suction device is a mobile suction unit that can move back and forth at the rear of the aquaculture tank to perform suction operations.

[0035] The large pond area outside the aquaculture tanks serves as an ecological purification zone, with an area ratio of approximately 5:95 between the aquaculture tank area and the purification zone. The ecological purification zone is divided into shallow and deep water areas, and is equipped with flow guide walls and water-pushing devices to ensure water circulation throughout the purification area. Filter-feeding fish (such as silver carp and bighead carp) and aquatic plants (such as water hyacinth and foxtail algae) are stocked in the ecological purification zone. The water is ecologically purified through the filter-feeding fish and aquatic plants. Floating biological beds can also be installed in the ecological purification zone to further enhance the water's self-purification capacity.

[0036] An air-lift aeration and water-pushing device is installed in the water-pushing area at the front of the aquaculture tank. This device combines a Roots blower with nanoporous tubes. Microporous aeration discs are installed side-by-side outside the water inlet, and a rounded stainless steel cover is placed above the aeration discs, allowing the oxygen-rich water blown by the discs to flow horizontally towards the aquaculture area. The air-lift aeration power is based on 100m per line. 2 The aquaculture tanks are equipped with a standard 1.6 kW configuration. Each tank is equipped with one vortex blower, and the blowers are connected in parallel. Bottom-level aeration equipment, consisting of microporous aeration pipes, oxygen supply pipes, and blowers, is installed at the bottom of both sides of the tanks. A 2-meter-long "T"-shaped microporous aeration pipe is installed every 2 meters, placed in a pre-reserved trench at the bottom of the tank. A 2.2 kW power source is recommended for the bottom-level aeration blowers, with a 20 kW three-phase four-wire generator provided as backup power.

[0037] Online water quality monitoring sensors are deployed in the aquaculture tanks and ecological purification area to continuously monitor indicators such as water temperature, dissolved oxygen, pH value, ammonia nitrogen, nitrite, and CO2 concentration 24 hours a day. Water level sensors are installed in the aquaculture tanks to monitor water level changes in real time. Operating status sensors are installed on aeration equipment, water pushing equipment, and sludge suction equipment to monitor the operating power, operating time, and fault status of the equipment. All sensors are connected to the intelligent control center system via wired or wireless transmission.

[0038] Deploy a central system consisting of a configuration module, a data acquisition module, a data analysis module, a decision control module, a report output module, and an early warning push module. Initialize the aquaculture species, water quality thresholds, equipment linkage logic, and feeding strategy parameters, and establish a closed loop for automatic sensor data acquisition, caching, and analysis.

[0039] Upon system startup, the configuration module first reads environmental variables and operating parameters. These parameters include: aquaculture parameters: species, stocking density, target water temperature range (22–26℃), target dissolved oxygen range (8–10 mg / L), suitable pH range (6.5–8.5), ammonia nitrogen warning value, nitrite warning value, etc.; equipment parameters: rated power of aeration equipment, operating parameters of water-pushing equipment, operating parameters of sludge suction equipment, equipment linkage control logic, etc.; feeding parameters: daily feeding amount, feeding frequency, feeding time, feed type, etc.; alarm parameters: warning thresholds and alarm thresholds for various water quality indicators; reporting parameters: report generation frequency, report receiving email address, report storage directory, etc.; network parameters: data transmission frequency, data upload address, etc. These configuration parameters are centrally managed, allowing parameter adjustments to be made without modifying the main system code.

[0040] The data acquisition module periodically accesses each sensor terminal via network protocol, extracting water quality data, equipment operation data, and environmental data according to a preset acquisition frequency (e.g., once every 5 minutes); it automatically collects monitoring data from each sensor at set time intervals; it converts the unstructured raw data from the sensors into structured data, including fields such as monitoring time, monitoring point, indicator name, and indicator value; the system establishes a local data cache, and in the event of network interruption or sensor malfunction, the data is temporarily stored locally and automatically uploaded after normal operation is restored; it automatically adds anomaly markers to data that exceeds the normal range for easy subsequent analysis and processing.

[0041] The data analysis module integrates and processes the collected water quality data, equipment data, and environmental data. The analysis includes time-series analysis of indicators such as water temperature, dissolved oxygen, pH, ammonia nitrogen, and nitrite to identify water quality trends; automatic identification and recording of abnormal events when any indicator exceeds a preset threshold; analysis of the correlation between feeding amount, water temperature, dissolved oxygen, and fish growth status; and analysis of the operating status, energy consumption, and fault warnings of each piece of equipment.

[0042] Based on data analysis results, the decision control module automatically generates control commands and sends them to each execution device. The control logic includes: automatically starting the aeration equipment when dissolved oxygen is below the set threshold; automatically reducing the aeration power or shutting down the equipment when dissolved oxygen returns to the normal range; automatically adjusting the operating power of the water-pushing equipment according to the breeding stage and water temperature conditions to maintain the water flow rate in the breeding tank within a suitable range (water is changed every 4-6 minutes); automatically starting the sludge suction device 1-1.5 hours after each feeding, and automatically stopping after about 0.5 hours of sludge suction; and automatically adjusting the feeding amount and frequency based on water quality data and fish growth stage.

[0043] The report output module integrates and processes the collected water quality data, equipment operation data, and aquaculture operation data to automatically generate an aquaculture management report. The report includes: a water quality monitoring report (data on water quality indicators, trends, and anomalies at each monitoring point); an equipment operation report (runtime, energy consumption data, and fault records for each piece of equipment); a feeding management report (feeding amount, feeding time, and feed consumption data); and an aquaculture recommendation report (optimization suggestions based on data analysis results). After the report is generated, the system generates a filename according to the current time and automatically saves it to the local directory. The early warning push module automatically pushes early warning information to a designated recipient via email or SMS when it detects an anomaly. After the user completes the configuration of their email account, authorization code, server address, and receiving email address, the system can automatically push early warning information.

[0044] Based on the technical characteristics of recirculating aquaculture systems, select suitable species for high-density recirculating aquaculture, including grass carp, crucian carp, channel catfish, largemouth bass, and mandarin fish. Choose single-species monoculture or multi-species culture in separate tanks, selecting healthy, robust, uniformly sized, and actively swimming fry. After all infrastructure and equipment are completed, disinfect the entire pond with quicklime at a rate of 50 kg / mu. Check all equipment for proper operation one day before stocking. Before stocking, disinfect the fry by soaking them in a solution of bleaching powder or potassium permanganate. Stocking time is from March to April each year. Stocking density is determined based on the species being cultured and the volume of the culture tank, generally 2 to 5 times the density of traditional pond culture.

[0045] Extruded floating feed, meeting national health and safety standards, and pollution-free, is used. High-quality, low-nitrogen formula feed is selected to improve fish digestibility and reduce waste discharge. Fish fry undergo a 7-day feeding acclimatization period after stocking. Feeding is conducted daily at fixed times and locations, using auditory stimulation (such as tapping sounds) to establish conditioned reflexes and cultivate a fixed-point feeding habit. After acclimatization, the "four fixed" feeding method is adhered to: fixed time, fixed quality, fixed quantity, and fixed location. The system automatically adjusts the daily feeding amount based on water quality monitoring data (water temperature, dissolved oxygen, etc.) and the fish's growth stage. When the water temperature is within the optimal growth range of 22-26℃, the standard feeding amount is used. When the water temperature is below 18℃ or above 30℃, the feeding amount is automatically reduced. When dissolved oxygen is below 5mg / L, feeding is automatically suspended. The feeding amount is dynamically adjusted according to the fish's growth cycle. The system automatically records the time, amount, feed type, and fish feeding behavior for each feeding, creating a complete feeding management file.

[0046] The aquaculture tanks are kept in a state of oxygenation and circulation 24 hours a day. Air-lift aerators operate continuously, maintaining the water flow rate within the tanks at a suitable range (water is changed every 4-6 minutes). The system continuously monitors water quality indicators 24 hours a day using sensors deployed within the aquaculture tanks and the ecological purification area. The central system regulates water quality based on these indicators. When the water temperature deviates from the optimal growth range of 22-26℃, the system automatically activates the temperature control equipment for adjustment. When dissolved oxygen falls below a set threshold, the system automatically activates the aeration equipment. Once dissolved oxygen returns to the normal range of 8-10 mg / L, the aeration power is automatically reduced. When the pond water pH deviates from the set range monthly, the system prompts management personnel to take adjustment measures. Regarding ammonia nitrogen... If nitrite levels exceed the warning threshold, the system automatically increases the circulation flow in the ecological purification zone or prompts the activation of the wastewater treatment equipment. The water discharged from the aquaculture tank flows out from the suction area at the tail end, passes through the collection pond and the ecological purification zone, and then flows into the front end, forming a water purification cycle. Solid waste settles in the suction area at the tail end, and the sludge is collected and transported to the collection pond by the suction device. The water then enters the ecological purification zone of the large pond, where filter-feeding fish (silver carp and bighead carp) feed on plankton and aquatic plants (water hyacinth, foxtail algae, etc.) to absorb nutrients such as nitrogen and phosphorus from the water, achieving ecological purification of the water. The purified water then re-enters the aquaculture tank through the water-pushing device, forming a closed loop of aquaculture tank – collection area – ecological purification zone – aquaculture tank.

[0047] The system periodically activates a suction device to collect feces and uneaten feed, which are then converted into organic fertilizer through solid-liquid separation and fermentation. The supernatant is purified and returned to the pond, thus realizing the resource utilization of waste.

[0048] The system automatically activates the sludge suction device 1-1.5 hours after each feeding. At this time, the farmed fish begin to produce a large amount of feces, which accumulates in the sludge collection area. The suction device automatically stops after about 0.5 hours of operation; two cycles of suction are sufficient for effective sludge removal. The suction device pumps fish feces and uneaten feed from the tail end of the aquaculture tank to the sludge collection tank. The sludge in the collection tank is collected by the suction device and then dried and fermented. The solid waste after solid-liquid separation can be used to make organic fertilizer, realizing the resource utilization of waste. The supernatant after solid-liquid separation enters the wastewater treatment system. The wastewater treatment adopts a three-stage series mode, using processes such as sedimentation, filtration, and biological purification to degrade harmful substances such as ammonia nitrogen and nitrite in the water. The purified water is returned to the pond. The sludge in the collection tank can be treated with EM bacteria and molasses (carbon source) for nitrification. After full fermentation, it is converted into organic fertilizer for use in surrounding farmland or aquatic plant cultivation, realizing the resource utilization of aquaculture waste.

[0049] The system automatically collects and stores the following data: water quality data, equipment operation data, feeding data, and sludge collection data. Water quality data includes time-series data for indicators such as water temperature, dissolved oxygen, pH, ammonia nitrogen, nitrite, and CO2 concentration. Equipment operation data includes the operating time, power consumption, and fault records of each piece of equipment. Feeding data includes the time, amount, and type of feed for each feeding session. Sludge collection data includes the time, amount, and sludge treatment records for each collection session. The system integrates and analyzes the collected data to identify trends in various water quality indicators and predict potential risks; analyzes the relationship between feeding amount, water quality conditions, and fish growth rate; analyzes the operating efficiency and energy consumption of each piece of equipment; and performs attribution analysis on events such as water quality anomalies and equipment malfunctions.

[0050] The system automatically collects and stores water quality data, equipment operation data, feeding data, and waste collection data. The water quality data includes time-series data of indicators such as water temperature, dissolved oxygen, pH value, ammonia nitrogen, nitrite, and CO2 concentration. Equipment operation data includes the runtime, power consumption, and fault records of each piece of equipment; feeding data includes the time, amount, and type of feed for each feeding; sludge collection data includes the time, amount, and sludge treatment records for each sludge collection. The collected data is integrated and analyzed, including water quality trends, aquaculture efficiency, equipment performance, and abnormal events. The system identifies trends in various water quality indicators, predicts potential risks, analyzes the relationship between feeding amount, water quality conditions, and fish growth rate, analyzes the operating efficiency and energy consumption of each piece of equipment, and performs attribution analysis on events such as water quality anomalies and equipment failures. After analysis, an aquaculture management report is automatically generated, including a water quality monitoring report, aquaculture operation report, aquaculture analysis report, and early warning and anomaly report. The water quality monitoring report includes water quality data, trends, and anomaly records for each monitoring point; the aquaculture operation report includes feeding records, sludge collection records, and equipment operation records; the aquaculture analysis report includes aquaculture efficiency analysis, cost analysis, and optimization suggestions; and the early warning and anomaly report includes early warning event records and handling suggestions. After the report is generated, the system automatically saves it to the local directory by name and automatically pushes the generated report to a designated email address. After the user completes the configuration of email account, authorization code, server address and receiving email, the system can automatically push the report.

[0051] The system monitors data in real time and automatically triggers alerts and pushes them to management personnel when water quality exceeds standards or equipment malfunctions. Alert information is automatically sent to management personnel via email or SMS. Alert information includes the type of anomaly, the abnormal value, the time of occurrence, and suggested handling measures. Managers can remotely view and control the equipment, and the system automatically switches to backup power in case of severe anomalies to ensure aquaculture safety.

[0052] By deeply integrating standardized recirculating aquaculture facilities with an intelligent management and control system, significant beneficial effects have been achieved. Stocking density can reach 2-3 times that of traditional methods, with a substantial increase in yield per tank and a marked reduction in the feed conversion ratio. Thanks to 24-hour online monitoring and automatic control, water quality remains stable throughout the aquaculture process, effectively reducing fish stress and disease incidence. The efficient collection of feces and uneaten feed (93%-95% solids collection rate) combined with the biological self-purification of the ecological purification zone and wastewater recycling essentially achieves the resource-based transformation of aquaculture waste and zero or compliant discharge of wastewater, resulting in significant environmental benefits. The continuous flow of water in the tanks keeps the fish in a counter-current state, promoting metabolism and improving meat firmness and taste. The entire aquaculture process features automatic data collection, intelligent analysis, and report delivery, significantly reducing manual inspection and recording workload and improving management efficiency and scientific decision-making. In summary, this invention combines multiple advantages such as high yield, high quality, environmental protection, and intelligence, resulting in significant economic and ecological benefits.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for recirculating aquaculture systems combined with standardized fishponds, characterized by the following steps: include: The pond was transformed into an east-west oriented rectangle, and a breeding trough with vertical walls, a tail sewage collection pond, and a large pond ecological purification area were constructed. Install water-pushing aeration, bottom aeration and backup power supply, deploy water quality, water level and equipment status sensors to form a standardized recirculating aquaculture hardware platform; Deploy a central system consisting of a configuration module, a data acquisition module, a data analysis module, a decision control module, a report output module, and an early warning push module; initialize aquaculture species, water quality thresholds, equipment linkage logic, and feeding strategy parameters; and establish a closed loop for automatic sensor data acquisition, caching, and analysis. Select suitable species, disinfect them, and then release the seedlings into the breeding tank to complete standardized stocking. The system uses extruded floating feed to feed the animals and establish conditioned reflexes; it dynamically adjusts the feeding amount based on monitoring data, automatically pauses when abnormalities occur, and records complete feeding records. The system maintains continuous operation of water pumping and oxygenation, with sensors monitoring water quality indicators 24 hours a day and the system automatically adjusting the oxygenation equipment. The aquaculture wastewater is treated in the collection pond and ecological purification area and then returned to the front end of the aquaculture tank, forming a cycle. The sewage suction device is activated periodically to collect feces and uneaten feed, which are then converted into organic fertilizer through solid-liquid separation and fermentation. The supernatant is purified and returned to the pond, realizing the resource utilization of waste. The system automatically integrates water quality, energy consumption and feeding data, performs aquaculture efficiency and water quality trend analysis, automatically generates aquaculture management reports and saves them locally by name according to time. The system monitors data in real time and automatically triggers an alert when water quality exceeds standards or equipment malfunctions, sending the alert to management personnel. The management personnel can then remotely view and control the equipment, and the system automatically switches to backup power in case of serious abnormalities.

2. The method for recirculating aquaculture system combined with standardized fishponds according to claim 1, characterized in that, The pond has a length-to-width ratio of 2:1, an average water depth of over 2.5m, an area of ​​20-30 mu, and a embankment slope ratio of 1:2.5-3. A water-retaining wall is constructed longitudinally in the middle of the pond, with a 15m wide water passage at one end and a breeding trough at the other end. Construct a group of 3 to 4 standardized breeding troughs in the pond. Each breeding trough is 22 to 27m long, 4 to 6m wide, and 2 to 2.5m deep. A water pushing area is set at the front end of the breeding trough, and a sludge suction area is set at the rear end. A sludge collection pond is built at the tail end of the breeding trough. The area of ​​the large pond outside the aquaculture tanks is designated as an ecological purification zone, with the area ratio of the aquaculture tank area to the large pond purification zone being 5:

95. Filter-feeding fish are stocked and aquatic plants are planted in the ecological purification zone. An oxygenation and aeration device is installed in the water-pushing area at the front end of the aquaculture tank; the power for water pushing and aeration is 100m per tank. 2 The aquaculture tank is equipped with a standard 1.6 kW power supply; bottom aeration equipment is installed on both sides of the bottom of the aquaculture tank and placed in the pre-reserved trench at the bottom of the tank. Online water quality monitoring sensors are deployed in the aquaculture tanks and ecological purification areas to continuously monitor water temperature, dissolved oxygen, pH value, ammonia nitrogen, nitrite, and CO2 concentration 24 hours a day. Water level sensors are installed in the aquaculture tanks to monitor water level changes in real time. Operating status sensors are installed on aeration equipment, water pushing equipment, and sludge suction equipment to monitor the operating power, operating time, and fault status of the equipment. All sensors are connected to the central system via wired or wireless transmission.

3. The method for recirculating aquaculture systems combined with standardized fishponds according to claim 1, characterized in that, The configuration module is used to read environmental variables and operating parameters, and to adjust the parameters; the data acquisition module periodically accesses each sensor terminal through a network protocol, and extracts water quality data, equipment operating data, and environmental data according to a preset acquisition frequency; the data analysis module integrates and processes the acquired water quality data, equipment data, and environmental data. The decision control module automatically generates control commands based on the data analysis results and sends them to each execution device; the report output module integrates and processes the collected water quality data, equipment operation data, and aquaculture operation data to automatically generate an aquaculture management report. When the warning push module detects an anomaly, it automatically pushes the warning information to the designated receiving end via email or SMS. After the user completes the configuration of the email account, authorization code, server address and receiving email, the system can automatically complete the warning information push.

4. The method for recirculating aquaculture systems combined with standardized fishponds according to claim 1, characterized in that, After the standardized recirculating aquaculture hardware platform is built, the entire pond is disinfected with quicklime at a rate of 50 kg / mu. Before the fish fry are released into the pond, they are disinfected by soaking in bleaching powder or potassium permanganate solution. The fish fry are released in March and April each year.

5. The method for recirculating aquaculture in a standardized fishpond according to claim 1, characterized in that, The central system regulates water quality based on water quality indicators. When the water temperature deviates from the 22-26℃ range, the system automatically activates the temperature control equipment for adjustment; when dissolved oxygen is below the set threshold, the system automatically activates the aeration equipment; when dissolved oxygen recovers to the range of 8-10 mg / L, the aeration power is automatically reduced; when the pH value of the pond water deviates from the set range during monthly monitoring, the system prompts the management personnel to take adjustment measures; when ammonia nitrogen or nitrite exceeds the warning value, the system automatically increases the circulation flow of the ecological purification zone or prompts the activation of the effluent treatment equipment. The water discharged from the aquaculture tank flows out from the suction area at the tail end, passes through the collection pool and the ecological purification area, and then flows into the front end.

6. The method for recirculating aquaculture system combined with standardized fishponds according to claim 1, characterized in that, The system automatically starts the sludge suction device 1 to 1.5 hours after each feeding and automatically stops after running for 0.5 hours, repeating the sludge suction twice. The sludge suction device pumps fish feces and uneaten feed from the tail of the aquaculture tank to the sludge collection tank. The sludge in the sludge collection tank is collected by the sludge suction device and then processed to make organic fertilizer. The sludge in the sludge collection tank is treated with EM bacteria and molasses for nitrification, and after fermentation, it is converted into organic fertilizer for use in surrounding farmland or aquatic plant cultivation.

7. The method for recirculating aquaculture system combined with standardized fishponds according to claim 1, characterized in that, The system automatically collects and stores water quality data, equipment operation data, feeding data, and waste collection data. It then integrates and analyzes the collected data, including water quality trends, aquaculture efficiency, equipment performance, and abnormal events. After analysis, the system automatically generates aquaculture management reports, which are then automatically saved to the local directory by naming the reports according to time.

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