Breeding tail water treatment method and system based on ecological purification of shed pond

Abstract

The invention relates to the technical field of aquaculture tail water treatment, in particular to an aquaculture tail water treatment method and system based on shed pond ecological purification, and the method comprises the following steps: arranging water quality monitoring equipment, and monitoring an aquaculture water body in an aquaculture shed pond through the water quality monitoring equipment; setting a water quality safety threshold value, and judging whether the aquaculture water is aquaculture tail water or not according to the aquaculture water detection result; after it is judged that the aquaculture water is aquaculture tail water, the aquaculture tail water is led out of the aquaculture shed pond to an ecological purification area through a pipeline system of the aquaculture shed pond; arranging a multi-stage purification treatment facility of the ecological purification area, and purifying the aquaculture tail water through the multi-stage purification treatment facility; and performing water quality evaluation on the purified breeding tail water, and judging whether the purified breeding tail water can flow back to the breeding shed pool or not. By means of the method, the concentration of nutrient substances such as nitrogen and phosphorus in the breeding tail water is effectively reduced, the nutrient substances are recycled after ecological purification treatment, and zero emission of the breeding tail water is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture tail water treatment, and in particular to an aquaculture tail water treatment method and system based on shed pond ecological purification. Background Art

[0002] The compliance of aquaculture effluent discharge and water resource reuse has become a hot topic of social concern. Traditional aquaculture systems usually rely on the self-purification capacity of natural water bodies, but with the expansion of aquaculture scale, natural purification capacity can no longer meet the needs of treating the rapid accumulation of pollutants in water bodies. Faced with the high cost of environmental protection equipment, the exploration of customized green and efficient aquaculture models has become an urgent matter today. Summary of the invention

[0003] The present invention provides a method and system for treating aquaculture tail water based on ecological purification in greenhouse ponds, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: Furthermore, a method for treating aquaculture tailwater based on shed pond ecological purification is provided, the method comprising: Arrange water quality monitoring equipment, monitor the aquaculture water in the aquaculture shed and pond through the water quality monitoring equipment, and obtain the aquaculture water monitoring results; Setting a water quality safety threshold, and judging whether the aquaculture water body is aquaculture tail water according to the aquaculture water body detection result; After determining that the aquaculture water body is the aquaculture tail water, the aquaculture tail water is led out of the aquaculture shed pond to the ecological purification area through the pipeline system of the aquaculture shed pond; Setting a multi-stage purification treatment facility in the ecological purification area, and purifying the aquaculture tail water through the multi-stage purification treatment facility; The water quality of the purified aquaculture tail water is evaluated to determine whether the purified aquaculture tail water can flow back to the aquaculture shed pond.

[0005] Furthermore, the arrangement of water quality monitoring equipment includes: using a floating device in the breeding shed pond to perform mobile monitoring of the breeding water body, and setting up fixed monitoring equipment in several links of the breeding tail water purification treatment to monitor the water quality changes of the breeding tail water.

[0006] Further, the water quality monitoring equipment is arranged to transmit data via a wireless network, and an encryption protocol is used during the data transmission process.

[0007] Furthermore, when the aquaculture tail water is led out from the aquaculture shed pond, the leading out of the aquaculture tail water is managed and the aquaculture tail water is led out in stages.

[0008] Furthermore, the aquaculture tail water is led out from the aquaculture shed pond to the ecological purification area through the pipeline system of the aquaculture shed pond, including: Based on the water quality monitoring equipment, setting the extraction rate of the pipeline system, and calculating the target extraction amount of the aquaculture tail water; Calculating the extraction time of the aquaculture tail water according to the extraction rate and the target extraction amount; A timer is installed in the pipeline system, and the lead-out amount of the aquaculture tail water is controlled by the lead-out time and the timer.

[0009] Furthermore, a multi-stage purification treatment facility is provided in the ecological purification area, and the aquaculture tail water is purified by the multi-stage purification treatment facility, including: Dividing the ecological purification area into a physical purification area and a biological purification area; Provide purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; Based on the water quality monitoring equipment, the residence time of the aquaculture tail water in each of the purification treatment facilities is controlled to purify the aquaculture tail water.

[0010] Furthermore, the ecological purification area includes: A sedimentation tank for removing larger suspended particles in the aquaculture tail water by gravity; A filter tank, used to remove smaller suspended particles in the aquaculture tail water; Constructed wetlands, which absorb and decompose nutrients and organic matter through biological treatment by aquatic plants and microorganisms; Biological ponds, which treat organic matter and nitrogen compounds in water through microorganisms and natural oxidation processes; The photosynthesis pond increases the dissolved oxygen in the aquaculture tail water and promotes the degradation of organic matter.

[0011] A system for treating aquaculture tailwater based on ecological purification of shed ponds, the system comprising: The aquaculture water monitoring module is equipped with water quality monitoring equipment, and the aquaculture water in the aquaculture shed and pond is monitored by the water quality monitoring equipment to obtain the aquaculture water monitoring results; Aquaculture tail water judgment module, which sets a water quality safety threshold and judges whether the aquaculture water body is aquaculture tail water according to the aquaculture water body detection result; A breeding tail water leading module, after determining that the breeding water body is the breeding tail water, leads the breeding tail water from the breeding shed pond to the ecological purification area through the pipeline system of the breeding shed pond; Aquaculture tail water purification module, which is provided with multi-stage purification treatment facilities in the ecological purification area, and purifies the aquaculture tail water through the multi-stage purification treatment facilities; The purified water quality assessment module assesses the water quality of the purified aquaculture tail water to determine whether the purified aquaculture tail water can flow back to the aquaculture shed pond.

[0012] Furthermore, the aquaculture tail water outlet module comprises: A target outflow amount calculation unit is configured to set an outflow rate of the pipeline system based on the water quality monitoring device and calculate a target outflow amount of the aquaculture tail water; A lead-out time calculation unit, which calculates the lead-out time of the aquaculture tail water according to the lead-out rate and the target lead-out amount; A lead-out amount control unit is provided, wherein a timer is installed in the pipeline system, and the lead-out amount of the aquaculture tail water is controlled by the lead-out time and the timer.

[0013] Furthermore, the aquaculture tail water purification module: An ecological purification area division unit, which divides the ecological purification area into a physical purification area and a biological purification area; A purification treatment facility setting unit is used to set purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; The aquaculture tail water purification treatment unit controls the residence time of the aquaculture tail water in each of the purification treatment facilities based on the water quality monitoring equipment, and purifies the aquaculture tail water.

[0014] The technical solution of the present invention can achieve the following technical effects: It effectively reduces the concentration of nutrients such as nitrogen and phosphorus in aquaculture effluents, and achieves zero discharge of aquaculture effluents through recycling after ecological purification treatment. On the premise of promoting the benign circulation of pollutants in aquaculture effluents, it fully taps the production potential of resources and obtains the best benefits of effluent treatment and resource utilization.

[0015] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a process for treating aquaculture tailwater based on ecological purification in greenhouse ponds; Figure 2 A schematic diagram of the process of setting up a multi-stage purification treatment facility in an ecological purification area; Figure 3 This is a structural schematic diagram of an aquaculture tailwater treatment system based on greenhouse pond ecological purification. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] Embodiment 1: like Figure 1 As shown, a method for treating aquaculture tailwater based on ecological purification of shed ponds comprises: S1: Arrange water quality monitoring equipment, monitor the aquaculture water in the aquaculture shed and pond through the water quality monitoring equipment, and obtain the aquaculture water monitoring results; Specifically, during aquaculture, water quality changes dynamically, and various pollutants will gradually accumulate in the water body, such as ammonia nitrogen, nitrite, nitrogen, phosphorus, etc. In order to ensure that aquatic organisms in the aquaculture water body can be in a suitable growth environment, water quality monitoring equipment can be arranged in various links of aquaculture effluent treatment to conduct real-time monitoring of key water quality indicators of aquaculture water bodies, including total nitrogen, total phosphorus, dissolved oxygen, pH value and turbidity, etc. These indicators directly reflect the health status of water quality and determine whether it is necessary to draw out the effluent and conduct deep treatment. When arranging monitoring equipment, different water layers, such as the surface layer, middle layer, bottom layer, etc., different areas, such as the center, edge, water inlet, outlet, etc., as well as the appropriate number of equipment and layout positions can be considered to cover different depths and positions of the aquaculture sheds and ponds, so as to minimize interference with the aquaculture organisms and ensure the representativeness and integrity of the water quality data.

[0021] S2: Set the water quality safety threshold and determine whether the aquaculture water is aquaculture tail water based on the aquaculture water test results; In this embodiment, the water quality safety threshold refers to the standard value or reference range used to determine whether the water quality of the water body is suitable for the growth of aquatic organisms during aquaculture. If certain water quality parameters, such as ammonia nitrogen, nitrite, total nitrogen or dissolved oxygen, do not exceed the preset water quality safety threshold, it means that the aquaculture water body is normal aquaculture water body, and monitoring continues through water quality monitoring equipment; if certain water quality parameters continue to exceed the preset safety threshold, it means that the biological purification system inside the shed pond can no longer cope with the pollutants in the water body, and the aquaculture water body is aquaculture tail water. At this time, the aquaculture tail water should be drawn out and enter the ex situ treatment system for deep purification.

[0022] S3: After the aquaculture water body is determined to be aquaculture tail water, the aquaculture tail water is led out from the aquaculture shed pond to the ecological purification area through the pipe system of the aquaculture shed pond; Specifically, during the breeding process, pollutants will gradually accumulate in the breeding water. If these pollutants continue to remain in the breeding pond, they will have an adverse effect on the cultured organisms. Therefore, these tail waters rich in pollutants need to be led out of the breeding shed pool through an underground pipeline system. Separating the tail water generated in the breeding pond from the breeding area can effectively reduce the pollution load in the breeding pond and ensure stable water quality. The pipeline system is the main transportation route for the breeding tail water from the shed pool to the purification facility. For the laying of the pipeline system, you can consider selecting a suitable lead-out point, planning the pipeline laying route, installing valves and water pumps, etc.

[0023] S4: Set up multi-stage purification treatment facilities in the ecological purification area to purify the aquaculture tail water through the multi-stage purification treatment facilities; On the basis of the above embodiment, after the aquaculture tail water is separated, it can be subjected to layered purification treatment, which helps to gradually reduce the pollutants in the water body and ensure the efficiency and effectiveness of the purification process. Usually, the tail water can be purified in the following treatment layers in sequence according to the different properties of the pollutants: physical purification layer, sedimentation and filtration to remove large particle pollutants; biological purification layer, artificial wetlands and microbial reaction pools to reduce nitrogen, phosphorus and organic matter concentrations. The above steps lead the tail water in the aquaculture pond to a specially designed ecological treatment area. In this special treatment area, different types of ecological treatment facilities are set up to carry out multi-level and multi-method purification treatment, such as wetlands, plant filtration areas and biological ponds. Through the biological activities in these areas, the concentration of pollutants in the tail water is gradually reduced to achieve the purpose of purification and form an effective pollutant removal mechanism.

[0024] S5: Evaluate the water quality of the purified aquaculture tail water to determine whether the purified aquaculture tail water can be returned to the aquaculture pond.

[0025] Specifically, in order to determine whether the purified aquaculture tail water meets the aquaculture water quality requirements, the purified water quality can be evaluated based on the purified water quality data collected by the water quality monitoring equipment. If the water quality of the purified tail water meets the requirements of the aquaculture water body, the purified water quality is determined to be qualified and can be directly returned to the aquaculture pond through the pipeline for continued aquaculture. During the return process, it can pass through ultraviolet disinfection equipment to ensure that there are no pathogens remaining, which can further improve the health of aquaculture and water quality safety. In addition, through ecological restoration and recycling, the discharge of aquaculture tail water can be reduced to a minimum, and ultimately achieve the goal of zero discharge, effectively reduce the environmental burden, and improve the environmental protection of the system. If the water quality test finds that certain pollutants still exceed the standard, the purified water quality is determined to be unqualified, and the tail water needs to enter further purification treatment, such as using an aerobic treatment pool, introducing the tail water into the aerobic pool, and increasing the oxygen supply to enhance the degradation of microorganisms and further reduce the concentration of organic pollutants. Extend the treatment in the artificial wetland link. If the nitrogen and phosphorus concentrations are high, you can choose to enter the artificial wetland for a period of time to further absorb excess nutrients.

[0026] Through the present invention, the concentration of nutrients such as nitrogen and phosphorus in aquaculture tail water is effectively reduced, and the tail water is recycled after ecological purification treatment to achieve zero discharge of aquaculture tail water. On the premise of promoting the benign circulation of pollutants in aquaculture tail water, the production potential of resources is fully utilized to obtain the best benefits of tail water treatment and resource utilization.

[0027] As a preferred embodiment of this embodiment, the arrangement of water quality monitoring equipment includes: using a floating device in the breeding shed pond to perform mobile monitoring of the breeding water body, and setting up fixed monitoring equipment in several links of the breeding tail water purification treatment to monitor the water quality changes of the breeding tail water.

[0028] Specifically, in order to monitor at different depths and in different areas of the breeding shed pond and obtain comprehensive information on water quality, water quality sensors can be installed on a floating platform or floating device, and mobile monitoring can be performed using sensors. Mobile monitoring can cover a larger range of water bodies, and multi-point water quality data can be obtained at different locations, which can reflect the uniformity and changes in the water quality of the entire water body. In order to ensure the effective operation of the entire aquaculture tailwater treatment system, it is necessary not only to monitor the water body in the breeding shed pond, but also to set up fixed water quality monitoring equipment at the key nodes of each treatment link, which can ensure that each treatment stage in the system can detect and control water quality in real time and ensure the tailwater purification effect.

[0029] Further, it includes arranging the water quality monitoring equipment to transmit data via a wireless network, and using an encryption protocol during the data transmission process.

[0030] In this embodiment, in order to conveniently transmit water quality monitoring data from each sensor to the central control system, a wireless network, such as 4G / 5G, LoRa, etc., can be used for data transmission. When using wireless transmission, it is susceptible to the risk of network attacks or data leakage. In order to ensure the security of data transmission, encryption protocols, such as AES, SSL / TLS, etc., can be used during the data transmission process to ensure the security of data transmission and prevent data from being intercepted or tampered with during transmission.

[0031] In order to maintain the stability of the breeding shed pond, when the breeding tail water is led out from the breeding shed pond, the lead out of the breeding tail water is managed and led out in stages.

[0032] As a preferred embodiment of this implementation, when the aquaculture tail water is drawn out, the water body of the entire aquaculture shed pond will not be completely drawn out, but it will be carried out in stages, which can reduce the pressure of the tail water treatment system, ensure that the water volume and water quality in the aquaculture pond will not change dramatically due to large-scale water changes, and ensure that the aquacultured organisms can adapt stably. While the tail water is drawn out in stages, new water bodies can be gradually added to gradually improve the water quality in the aquaculture pond. In this way, aquatic organisms still have a relatively stable growth environment, and aquatic organisms can gradually adapt to the improvement process of water quality, avoiding stress reactions and disease risks caused by sudden water changes. The supplementary water can be water purified by ectopic ecological restoration, or it can be a fresh supplementary water source. The drawn tail water gradually enters the ectopic treatment system for deep purification, and the new supplementary water is gradually injected into the aquaculture shed pond. In this way, the stability of the aquaculture environment can be maintained to a large extent.

[0033] On the basis of the above embodiment, the tail water of aquaculture is led out from the aquaculture shed to the ecological purification area through the pipeline system of the aquaculture shed, including: A1: Based on the water quality monitoring equipment, set the extraction rate of the pipeline system and calculate the target extraction volume of aquaculture tail water; In this embodiment, the extraction rate of the pipeline system can be set by installing a flow control valve on the extraction pipeline, and controlling the speed of the water flow by adjusting the opening of the valve. The flow control valve can be adjusted step by step until a suitable extraction speed is reached; a flow meter can also be installed in the pipeline system to monitor the extraction flow in real time and fine-tune the extraction speed. The flow meter can display the current flow value to facilitate adjusting the speed of the flow control valve or water pump to keep the required extraction speed stable. In order to ensure that the concentration of pollutants can be effectively reduced while maintaining the relative stability of the water level in the breeding shed pond to avoid adverse effects on the cultured organisms, the amount of breeding tail water extracted can be accurately calculated. This step can calculate the amount of tail water extracted based on the water quality collected by the water quality monitoring equipment, the volume of the shed pond water body, the treatment capacity of the purification system and other factors.

[0034] A2: Calculate the time for the discharge of aquaculture tail water based on the discharge rate and target discharge volume; A3: Install a timer in the piping system and control the amount of aquaculture tail water discharged by the discharge time and timer.

[0035] Specifically, in order to ensure that the amount of water diverted is exactly in line with the plan, a timer can be installed in the pipeline system. The timer is connected to the water pump or valve control device. The intelligent control system can control the switching of the water pump or valve through the timer. When the expected time is reached, the timer will automatically turn off the water pump or valve. Through the time control of the timer, the water pump or control valve will automatically run and stop without human intervention, ensuring that the target amount of tail water is diverted within the required time, thereby realizing automated process control.

[0036] As a preferred embodiment of this embodiment, Figure 2 As shown, a multi-stage purification treatment facility is set up in the ecological purification area, and the aquaculture tail water is purified by the multi-stage purification treatment facility, including: B1: Divide the ecological purification area into physical purification area and biological purification area; B2: Set up purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; Specifically, the physical purification area is mainly used to remove suspended particles, sediment, and large particle pollutants in the tailwater, including sedimentation tanks, filtration tanks, etc. These facilities can effectively reduce larger particles in the water and lay the foundation for subsequent biological treatment; the biological purification area removes dissolved organic matter, ammonia nitrogen, phosphorus and other nutrients in the tailwater through biological treatment methods such as microorganisms and plants, including artificial wetlands, biological ponds, etc., which can effectively reduce nitrogen and phosphorus concentrations and reduce the risk of eutrophication of water bodies. Since different facilities treat different pollutants at different stages and each has specific functions, the purification treatment facilities can be connected in series. Through multi-stage series connection, the tailwater will pass through multiple purification facilities in turn, and each facility will treat pollutants of different types or sizes. Each purification facility can operate within its optimal load range. The series mode reduces the burden of the next level system on the previous level purification system and improves the efficiency of subsequent treatment facilities.

[0037] B3: Based on water quality monitoring equipment, the residence time of aquaculture tail water in each purification treatment facility is controlled to purify the aquaculture tail water.

[0038] Different pollutants and treatment facilities require different amounts of time to be processed. Reasonable control of the residence time in each facility can ensure that the purification effect reaches the expected level. After the tail water enters the purification system, the intelligent control system will begin to regulate the residence time of the water in each purification unit based on the water quality data monitored in real time by the water quality monitoring equipment in the tail water purification link. This can be achieved by adjusting the flow rate and flow of the tail water through devices such as flow control valves, ensuring that the water has enough time to treat specific pollutants in different facilities.

[0039] As a preferred embodiment of this embodiment, the ecological purification area includes: Sedimentation tanks use gravity to remove larger suspended particles in aquaculture effluent. Sedimentation tanks use gravity to remove suspended particles in the water, causing the particles to settle to the bottom of the tank. They are primary purification facilities in ecological purification areas and can effectively reduce silt and large particle pollutants in the water.

[0040] The filter tank is used to remove smaller suspended particles in the aquaculture tail water; the filter tank can further purify the water through sand filtration, filter screen or membrane filtration, ensuring that the water is cleaner when entering the biological purification stage and improving the efficiency of subsequent treatment.

[0041] Artificial wetlands use aquatic plants and microorganisms to carry out biological treatment, absorb and decompose nutrients and organic matter; aquatic plants planted in artificial wetlands, such as reeds, cattails, duckweed, etc., absorb nutrients such as nitrogen and phosphorus in the water through their roots; microbial communities attach to plant roots or wetland substrates to decompose organic matter, converting ammonia nitrogen into nitrates or nitrogen gas, thereby reducing the nitrogen content in the water. Artificial wetlands can be divided into surface flow wetlands and subsurface flow wetlands. The water in surface flow wetlands flows on the surface of the wetland, and the plants directly absorb nutrients in the water. The water in subsurface flow wetlands flows in the wetland medium, and microorganisms and plant roots work together to remove pollutants.

[0042] Biological ponds treat organic matter and nitrogen compounds in water through microorganisms and natural oxidation processes. Aquaculture tail water passes through artificial wetlands and then enters biological ponds, where the microorganisms in the biological ponds further degrade the remaining pollutants. Biological ponds treat organic matter, ammonia nitrogen and nitrogen compounds in water through the metabolic activities of aerobic and anaerobic microorganisms. Biological ponds can be designed as aerobic ponds and anaerobic ponds. Aerobic ponds promote the decomposition of organic matter and ammonia nitrogen by aerobic microorganisms by increasing the dissolved oxygen in the water. Anaerobic ponds are used to treat nitrates, sulfides, etc. in water and require lower dissolved oxygen conditions.

[0043] Photosynthesis ponds increase the dissolved oxygen in the aquaculture tail water and promote the degradation of organic matter. Through the photosynthesis of aquatic plants and phytoplankton, photosynthesis ponds increase the dissolved oxygen in the water, thereby promoting the natural degradation of organic matter and improving the self-purification ability of water quality. Photosynthesis ponds are very important for maintaining the oxygen level in the water. They can not only increase the dissolved oxygen content in the water, provide a better living environment for aerobic microorganisms, but also further optimize the water quality.

[0044] Embodiment 2: like Figure 3 As shown, a breeding tailwater treatment system based on shed pond ecological purification includes: Aquaculture water monitoring module, arranging water quality monitoring equipment, monitoring the aquaculture water in the aquaculture shed and pond through the water quality monitoring equipment, and obtaining the aquaculture water monitoring results; Aquaculture tail water judgment module sets the water quality safety threshold and determines whether the aquaculture water is aquaculture tail water based on the aquaculture water test results; The aquaculture tailwater extraction module determines that the aquaculture water body is aquaculture tailwater, and then extracts the aquaculture tailwater from the aquaculture shed and pond to the ecological purification area through the pipeline system of the aquaculture shed and pond; Aquaculture tail water purification module, set up multi-stage purification treatment facilities in the ecological purification area, and purify the aquaculture tail water through the multi-stage purification treatment facilities; The purified water quality assessment module conducts water quality assessment on the purified aquaculture tail water to determine whether the purified aquaculture tail water can be returned to the aquaculture shed pond.

[0045] The above-mentioned adjustment system in the present invention can effectively realize a method for treating aquaculture tailwater based on ecological purification of greenhouse ponds. The technical effects that can be achieved are as described in the above-mentioned embodiments and will not be repeated here.

[0046] Furthermore, the aquaculture tail water extraction module includes: A target outflow amount calculation unit sets an outflow rate of the pipeline system based on the water quality monitoring equipment and calculates a target outflow amount of the aquaculture tail water; A lead-out time calculation unit calculates the lead-out time of aquaculture tail water according to the lead-out rate and the target lead-out amount; The outflow control unit installs a timer in the piping system to control the outflow amount of aquaculture tail water through the outflow time and the timer.

[0047] Furthermore, the aquaculture tail water purification module: Ecological purification area division unit, which divides the ecological purification area into physical purification area and biological purification area; A purification treatment facility setting unit is used to set purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; The aquaculture tail water purification treatment unit controls the residence time of aquaculture tail water in each purification treatment facility based on water quality monitoring equipment to purify the aquaculture tail water.

[0048] Similarly, the above-mentioned optimization schemes for the system can also respectively achieve the optimization effects corresponding to the method in Example 1, which will not be repeated here.

[0049] Although the present application has been described in conjunction with specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the accompanying drawings are merely exemplary illustrations of the present application as defined herein, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application is intended to include these modifications and variations.

Claims

1. A method for treating aquaculture tailwater based on ecological purification of shed ponds, characterized in that: The method comprises: Arrange water quality monitoring equipment, monitor the aquaculture water in the aquaculture shed and pond through the water quality monitoring equipment, and obtain the aquaculture water monitoring results; Setting a water quality safety threshold, and judging whether the aquaculture water body is aquaculture tail water according to the aquaculture water body detection result; After determining that the aquaculture water body is the aquaculture tail water, the aquaculture tail water is led out of the aquaculture shed pond to the ecological purification area through the pipeline system of the aquaculture shed pond; Setting a multi-stage purification treatment facility in the ecological purification area, and purifying the aquaculture tail water through the multi-stage purification treatment facility; The water quality of the purified aquaculture tail water is evaluated to determine whether the purified aquaculture tail water can be returned to the aquaculture shed pond.

2. A method for treating aquaculture tailwater based on shed pond ecological purification according to claim 1, characterized in that: The arrangement of water quality monitoring equipment includes: using a floating device in the breeding shed pond to carry out mobile monitoring of the breeding water body, and setting fixed monitoring equipment in several links of the breeding tail water purification treatment to monitor the water quality changes of the breeding tail water.

3. A method for treating aquaculture tailwater based on shed pond ecological purification according to claim 2, characterized in that: The water quality monitoring device is arranged to transmit data via a wireless network, and an encryption protocol is used during the data transmission process.

4. A method for treating aquaculture tailwater based on shed pond ecological purification according to claim 1, characterized in that: When the aquaculture tail water is led out from the aquaculture shed pond, the leading out of the aquaculture tail water is managed and the aquaculture tail water is led out in stages.

5. A method for treating aquaculture tailwater based on shed pond ecological purification according to claim 4, characterized in that: Leading the aquaculture tail water from the aquaculture shed pond to the ecological purification area through the pipeline system of the aquaculture shed pond includes: Based on the water quality monitoring equipment, setting the extraction rate of the pipeline system, and calculating the target extraction amount of the aquaculture tail water; Calculating the extraction time of the aquaculture tail water according to the extraction rate and the target extraction amount; A timer is installed in the pipeline system, and the lead-out amount of the aquaculture tail water is controlled by the lead-out time and the timer.

6. A method for treating aquaculture tailwater based on shed pond ecological purification according to claim 1, characterized in that: The multi-stage purification treatment facility in the ecological purification area is provided, and the aquaculture tail water is purified by the multi-stage purification treatment facility, including: Dividing the ecological purification area into a physical purification area and a biological purification area; Provide purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; Based on the water quality monitoring equipment, the residence time of the aquaculture tail water in each of the purification treatment facilities is controlled to purify the aquaculture tail water.

7. A method for treating aquaculture tailwater based on ecological purification of shed ponds according to claim 6, characterized in that: The ecological purification area includes: A sedimentation tank for removing larger suspended particles in the aquaculture tail water by gravity; A filter tank, used to remove smaller suspended particles in the aquaculture tail water; Constructed wetlands, which absorb and decompose nutrients and organic matter through biological treatment by aquatic plants and microorganisms; Biological ponds, which treat organic matter and nitrogen compounds in water through microorganisms and natural oxidation processes; The photosynthesis pond increases the dissolved oxygen in the aquaculture tail water and promotes the degradation of organic matter.

8. A breeding tailwater treatment system based on shed pond ecological purification, characterized in that: The system comprises: Aquaculture water monitoring module, arranged with water quality monitoring equipment, monitors the aquaculture water in the aquaculture shed and pond through the water quality monitoring equipment to obtain aquaculture water monitoring results; Aquaculture tail water judgment module, which sets a water quality safety threshold and judges whether the aquaculture water body is aquaculture tail water according to the aquaculture water body detection result; A breeding tail water leading module, after determining that the breeding water body is the breeding tail water, leads the breeding tail water from the breeding shed pond to the ecological purification area through the pipeline system of the breeding shed pond; Aquaculture tail water purification module, which is provided with multi-stage purification treatment facilities in the ecological purification area, and purifies the aquaculture tail water through the multi-stage purification treatment facilities; The purified water quality assessment module assesses the water quality of the purified aquaculture tail water to determine whether the purified aquaculture tail water can flow back to the aquaculture shed pond.

9. The aquaculture tailwater treatment system based on shed pond ecological purification according to claim 8 is characterized in that: The aquaculture tail water outlet module comprises: A target outflow amount calculation unit is configured to set an outflow rate of the pipeline system based on the water quality monitoring device and calculate a target outflow amount of the aquaculture tail water; A lead-out time calculation unit, which calculates the lead-out time of the aquaculture tail water according to the lead-out rate and the target lead-out amount; A lead-out amount control unit is provided, wherein a timer is installed in the pipeline system, and the lead-out amount of the aquaculture tail water is controlled by the lead-out time and the timer.

10. The aquaculture tailwater treatment system based on shed pond ecological purification according to claim 8, characterized in that: The aquaculture tail water purification module: An ecological purification area division unit, which divides the ecological purification area into a physical purification area and a biological purification area; A purification treatment facility setting unit is used to set purification treatment facilities for the physical purification area and the biological purification area, and connect the purification treatment facilities in series; The aquaculture tail water purification treatment unit controls the residence time of the aquaculture tail water in each of the purification treatment facilities based on the water quality monitoring equipment, and purifies the aquaculture tail water.

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