Intelligent management method and system for aquaculture tail water discharge

Abstract

The invention discloses an intelligent management method and system for tail water discharge in aquaculture, belongs to the technical field of water environment management, and aims to accurately predict tail water diffusion and concentration and ensure discharge compliance by constructing a water body flow model and combining tail water components and pre-discharge information. The pre-discharging plan is intelligently adjusted, the standard exceeding risk is avoided, meanwhile, discharging and water quality are monitored in real time, and abnormal conditions are rapidly early warned and treated. The method not only improves the efficiency and accuracy of tail water management, but also remarkably reduces the environmental risk, and helps the aquaculture industry to realize green and sustainable development. Through automatic and intelligent management, the management process is simplified, human intervention is reduced, and a scientific and efficient solution is provided for aquaculture tail water discharge.

Description

Technical Field

[0001] The present invention relates to the technical field of water environment management, and more particularly to an intelligent management method and system for aquaculture tail water discharge. Background Art

[0002] With the rapid development of aquaculture, the problem of aquaculture tailwater discharge has become increasingly prominent. The tailwater produced in the aquaculture process contains a large amount of organic matter, nitrogen, phosphorus and other nutrients, as well as microorganisms and drug residues. If it is directly discharged into natural water bodies without effective treatment, it will seriously pollute the water environment and endanger the aquatic ecosystem and human health.

[0003] Most existing aquaculture tailwater treatment methods rely on manual operation and monitoring, with low intelligence. This results in low treatment efficiency, and it is difficult to grasp the tailwater discharge situation in real time, and it is impossible to respond to emergencies in a timely manner. In addition, most existing tailwater management methods lack automated control functions and cannot automatically adjust treatment parameters and strategies based on real-time data.

[0004] Therefore, providing an efficient and intelligent aquaculture tailwater discharge management method and system is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides an intelligent management method and system for aquaculture tailwater discharge, which has a high level of intelligence and automation, can collect and analyze tailwater discharge data in real time, and automatically adjust the processing strategy according to the data.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] In one aspect, the present invention provides an intelligent management method for aquaculture tailwater discharge, comprising the following steps:

[0008] Obtaining modeling information of a tailwater discharge area and location information of each aquaculture discharge outlet within the tailwater discharge area;

[0009] Generate a water flow model of the tailwater discharge area according to the modeling information and the location information;

[0010] Obtain tailwater composition information and pre-discharge information from each aquaculture discharge outlet;

[0011] Inputting the pre-discharge information into a water flow model to obtain tailwater diffusion conditions;

[0012] Calculating the maximum concentration of tail water based on the tail water diffusion condition and the tail water component information;

[0013] Determine whether the maximum concentration of the tail water exceeds a preset value; if so, adjust the pre-discharge information and re-input it into the water flow model for diffusion prediction until the maximum concentration of the tail water does not exceed the preset value, and send the adjusted pre-discharge information to each aquaculture discharge port; if not, directly send the pre-discharge information to each aquaculture discharge port;

[0014] Real-time monitoring of discharge information and water quality information of each aquaculture discharge outlet;

[0015] Compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, continue monitoring; if it is not consistent, conduct early warning processing;

[0016] When the water quality information meets the requirements, continue monitoring; when the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet, and adjust the discharge information according to the tail water residue and water quality information.

[0017] Preferably, the method further comprises: recording all warning events, emission adjustment records, and regularly generating monitoring emission reports.

[0018] Preferably, adjusting the pre-emission information includes:

[0019] Acquire concentration data of an aquaculture discharge outlet associated with a target location and within a target time period based on the tailwater diffusion condition;

[0020] Determining contribution information of each associated aquaculture outfall to the concentration at the target location based on the concentration data;

[0021] The pre-emission information is adjusted based on the contribution information.

[0022] Preferably, generating a water flow model of the tailwater discharge area according to the modeling information and the location information includes:

[0023] Constructing a topographic model of the tailwater discharge area according to the modeling information;

[0024] Dividing the tailwater discharge area into a plurality of grids, and calculating the lateral flow between grid i and grid i+1 according to the modeling information;

[0025] A lateral flow equation is established according to the topography and geomorphology model and the lateral flow to obtain a water flow model.

[0026] Preferably, obtaining the tail water balance of each aquaculture discharge outlet and adjusting the discharge information according to the tail water balance and water quality information includes:

[0027] Obtaining the tailwater surplus of each aquaculture discharge outlet, and determining the priority of each aquaculture discharge outlet according to the tailwater surplus;

[0028] The aquaculture discharge outlet with the highest priority is arranged first according to the priority; if the maximum tail water concentration cannot meet the needs of the aquaculture discharge outlet with the highest priority, a plurality of aquaculture discharge outlets with the lowest priority are postponed and the occupied concentrations are released and allocated to the aquaculture discharge outlet with the highest priority; if the maximum tail water concentration cannot meet the needs of the aquaculture discharge outlet with the highest priority, and the concentrations released by postponing a plurality of aquaculture discharge outlets with the lowest priority cannot meet the needs of the aquaculture discharge outlet with the highest priority, a plurality of aquaculture discharge outlets with the lowest priority and a plurality of aquaculture discharge outlets with medium priority are postponed and allocated to the aquaculture discharge outlet with the highest priority.

[0029] On the other hand, the present invention also provides an intelligent management system for aquaculture tailwater discharge, the management system is used to implement the above-mentioned intelligent management method for aquaculture tailwater discharge, comprising:

[0030] An input module is used to obtain modeling information of the tailwater discharge area and location information of each aquaculture discharge outlet in the tailwater discharge area;

[0031] A model generation module, generating a water flow model of the tailwater discharge area according to the modeling information and the location information;

[0032] A collection module is used to obtain tailwater composition information of each aquaculture discharge outlet and obtain pre-discharge information of each aquaculture discharge outlet;

[0033] A diffusion analysis module, used for inputting the pre-discharge information into a water flow model to obtain tailwater diffusion conditions;

[0034] A concentration calculation module, used for calculating the maximum concentration of the tail water based on the tail water diffusion condition and the tail water component information;

[0035] A judgment module, for judging whether the maximum concentration of the tail water exceeds a preset value, and sending pre-discharge information if it does not exceed the preset value to each aquaculture discharge port;

[0036] An adjustment module, for adjusting the pre-discharge information when the maximum concentration of the tail water exceeds a preset value, and re-inputting the information into the water flow model for diffusion prediction until the maximum concentration of the tail water does not exceed the preset value;

[0037] A control module, used for controlling each aquaculture discharge port to discharge tail water according to the pre-discharge information sent by the judgment module;

[0038] The monitoring module monitors the discharge information and water quality information of each aquaculture discharge outlet in real time;

[0039] A comparison module is used to compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, continue monitoring; if it is not consistent, perform early warning processing;

[0040] A water quality management module, used to determine whether the water quality information meets the requirements, and when the water quality information meets the requirements, continue monitoring; when the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet, and adjust the discharge information according to the tail water residue and water quality information;

[0041] The early warning module is used to issue an early warning according to the signal output by the comparison module.

[0042] Preferably, the management system further comprises a report generation module for recording all warning events, emission adjustment records, and regularly generating monitoring emission reports.

[0043] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a method and system for intelligent management of tailwater discharge in aquaculture, which realizes the refined and intelligent management of tailwater discharge through modeling, prediction, adjustment and real-time monitoring. The present invention first constructs a water flow model of the tailwater discharge area, combines the tailwater composition and pre-discharge information of each discharge port, predicts the tailwater diffusion and maximum concentration, and ensures that the discharge meets environmental standards. Once the risk of exceeding the standard is found, the pre-discharge plan is adjusted immediately until the requirements are met, effectively avoiding environmental pollution. At the same time, the discharge and water quality information are monitored in real time, and abnormal situations are quickly warned and handled to ensure the compliance of the discharge. Overall, the management method provided by the present invention improves the efficiency and accuracy of tailwater discharge management, reduces environmental risks, promotes the green and sustainable development of the aquaculture industry, and embodies the advantages of intelligent and automated management. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0045] Figure 1 is a flow chart of the management method of the present invention;

[0046] Figure 2 It is a structural schematic diagram of the management system of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The embodiment of the present invention discloses an intelligent management method for aquaculture tailwater discharge, such as Figure 1 As shown, the following steps are included:

[0049] Obtain modeling information of the tailwater discharge area and location information of each aquaculture discharge outlet in the tailwater discharge area; specifically use remote sensing technology (such as satellite images, drone aerial photography) and GIS system to collect topographic, hydrological, meteorological and other modeling data of the tailwater discharge area. Determine the precise location of each aquaculture discharge outlet through GPS positioning technology, and establish a database to store this information. Furthermore, after obtaining the modeling information and location information, it is necessary to clean the collected data, remove outliers and redundant information, and then integrate the cleaned data into a unified platform for subsequent analysis.

[0050] Generate a water flow model for the tailwater discharge area based on the modeling information and location information;

[0051] Obtain the tailwater composition information and pre-discharge information of each aquaculture discharge outlet. Specifically, the tailwater composition information is obtained by regularly sampling and analyzing the tailwater of each aquaculture discharge outlet to determine the content of its main components (such as nitrogen, phosphorus, organic matter, etc.). The pre-discharge information is to predict and input the pre-discharge information such as the tailwater discharge volume and discharge time of each discharge outlet based on factors such as the breeding cycle and breeding density.

[0052] Input the pre-discharge information into the water flow model to obtain tailwater dispersion;

[0053] Calculate the maximum tailwater concentration based on tailwater diffusion and tailwater composition information;

[0054] Determine whether the maximum tailwater concentration exceeds the preset value; if so, adjust the pre-discharge information and re-enter it into the water flow model for diffusion prediction until the maximum tailwater concentration does not exceed the preset value, and send the adjusted pre-discharge information to each aquaculture discharge port; if not, directly send the pre-discharge information to each aquaculture discharge port. Adjusting the pre-discharge information includes adjusting the pre-discharge information according to the degree and cause of exceeding the standard (such as reducing the discharge volume, adjusting the discharge time, optimizing the discharge layout, etc.).

[0055] Real-time monitoring of the discharge information and water quality information of each aquaculture discharge outlet. Multiple water quality monitoring stations and discharge monitoring systems are installed in the tailwater discharge area and discharge outlet to achieve real-time monitoring of water quality information and tailwater discharge time and discharge volume.

[0056] Compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, continue monitoring; if it is not consistent, conduct early warning processing;

[0057] When the water quality information meets the requirements, continue monitoring; when the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet, and adjust the discharge information based on the tail water residue and water quality information.

[0058] In another embodiment, the method further includes: recording all warning events, emission adjustment records, and regularly generating monitoring emission reports.

[0059] Furthermore, the pre-emission information is adjusted, including:

[0060] Based on the tailwater diffusion, obtain the concentration data of the aquaculture discharge outlets associated with the target location and the target time period; use the simulation results output by the water flow model to analyze the diffusion of tailwater in the discharge area in detail, including diffusion direction, speed, distance, etc. Pay special attention to the diffusion paths and areas related to the target location (such as water source protection areas, ecologically sensitive areas, etc.). Based on the diffusion paths and areas, identify the aquaculture discharge outlets that are directly or indirectly related to the target location. For these related discharge outlets, extract concentration data within the target time period (such as high concentration period, key period), including maximum value, average value, distribution range, etc.

[0061] Determine the contribution information of each associated aquaculture outlet to the concentration of the target location based on the concentration data; use quantitative analysis methods (such as contribution rate calculation, source apportionment technology, etc.) to evaluate the specific contribution of each associated outlet to the tailwater concentration of the target location. Consider the mutual influence and superposition effect between different outlets and calculate the comprehensive contribution information.

[0062] The pre-emission information is adjusted based on the contribution information.

[0063] Based on the contribution information, differentiated adjustment strategies are formulated for different emission outlets. For emission outlets with greater contributions, emission reduction measures can be taken preferentially, such as reducing emissions, adjusting emission time to avoid high concentration periods, and adding tailwater treatment facilities. For emission outlets with smaller contributions, it is also necessary to continue to pay attention to their emissions to ensure that emission reduction tasks are reasonably allocated under the overall emission control target.

[0064] Furthermore, a water flow model of the tailwater discharge area is generated based on the modeling information and location information, including:

[0065] Construct a topographic model of the tailwater discharge area based on the modeling information;

[0066] The tailwater discharge area is divided into multiple grids, and the lateral flow between grid i and grid i+1 is calculated based on the modeling information; the tailwater discharge area is divided into a series of regular grids (such as square or rectangular grids), each grid represents a small calculation unit. The size of the grid should be determined according to the accuracy requirements of the model, the computing resources, and the characteristics of the tailwater discharge. Based on the modeling information (such as water velocity, water depth, etc.) and the geometric characteristics of the grid (such as area, boundary length, etc.), the lateral water flow between each grid and its adjacent grids (grid i and grid i+1) is calculated. This usually involves the calculation of factors such as water flow resistance, gravity, and friction loss.

[0067] According to the topographic model and lateral flow, the lateral flow equation is established to obtain the water flow model. According to the topographic model, the water surface elevation and slope of each grid are determined. Slope is one of the key factors affecting the lateral flow of water, which determines the direction and speed of the water flow. Based on the basic principles of fluid mechanics (such as the continuity equation, momentum equation, etc.), combined with the lateral flow calculation results between grids and topographic information, mathematical equations describing the lateral flow of water between grids are established. These equations should be able to reflect the speed, direction, mass conservation and other characteristics of the water flow. Numerical methods (such as finite difference method, finite element method, etc.) are used to solve the established lateral flow equations. Through iterative calculation, the water flow state (such as flow velocity, flow direction, water depth, etc.) of each grid at different time points is obtained.

[0068] Specifically, obtain the tailwater balance of each aquaculture discharge outlet, and adjust the discharge information according to the tailwater balance and water quality information, including:

[0069] Obtain the tailwater surplus of each aquaculture discharge outlet and determine the priority of each aquaculture discharge outlet according to the tailwater surplus;

[0070] The highest priority aquaculture discharge outlet shall be arranged first according to priority; if the maximum tailwater concentration cannot meet the requirements of the highest priority aquaculture discharge outlet, multiple lowest priority aquaculture discharge outlets shall be postponed and the occupied concentrations shall be released and allocated to the highest priority aquaculture discharge outlet; if the maximum tailwater concentration cannot meet the requirements of the highest priority aquaculture discharge outlet, and the concentrations released by postponing multiple lowest priority aquaculture discharge outlets cannot meet the requirements of the highest priority aquaculture discharge outlet, multiple lowest priority aquaculture discharge outlets and multiple medium priority aquaculture discharge outlets shall be postponed and allocated to the highest priority aquaculture discharge outlet.

[0071] On the other hand, the present invention also provides an intelligent management system for aquaculture tailwater discharge, which is used to implement the above-mentioned intelligent management method for aquaculture tailwater discharge, such as Figure 2 As shown, including:

[0072] An input module for obtaining modeling information of the tailwater discharge area and location information of each aquaculture discharge outlet in the tailwater discharge area;

[0073] A model generation module generates a water flow model of the tailwater discharge area based on modeling information and location information;

[0074] A collection module is used to obtain tailwater composition information of each aquaculture discharge outlet and obtain pre-discharge information of each aquaculture discharge outlet;

[0075] Diffusion analysis module, used to input pre-discharge information into the water flow model to obtain tailwater diffusion;

[0076] A concentration calculation module is used to calculate the maximum concentration of tail water based on tail water diffusion and tail water composition information;

[0077] A judgment module determines whether the maximum concentration of tail water exceeds a preset value, and sends pre-discharge information if it does not exceed the preset value to each aquaculture discharge port;

[0078] An adjustment module is used to adjust the pre-discharge information when the maximum concentration of tail water exceeds a preset value, and re-input it into the water flow model for diffusion prediction until the maximum concentration of tail water does not exceed the preset value;

[0079] A control module, used to control each aquaculture discharge port to discharge tail water according to the pre-discharge information sent by the judgment module;

[0080] The monitoring module monitors the discharge information and water quality information of each aquaculture discharge outlet in real time;

[0081] The comparison module is used to compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, the monitoring will continue; if it is not consistent, an early warning will be carried out;

[0082] The water quality management module is used to determine whether the water quality information meets the requirements. When the water quality information meets the requirements, continue monitoring. When the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet and adjust the discharge information according to the tail water residue and water quality information;

[0083] The early warning module is used to issue an early warning according to the signal output by the comparison module.

[0084] In another embodiment, the management system further includes a report generation module for recording all warning events, emission adjustment records, and regularly generating monitoring emission reports.

[0085] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0086] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent management method for aquaculture tailwater discharge, characterized in that: The following steps are involved: Obtaining modeling information of a tailwater discharge area and location information of each aquaculture discharge outlet within the tailwater discharge area; Generate a water flow model of the tailwater discharge area according to the modeling information and the location information; Obtain tailwater composition information and pre-discharge information from each aquaculture discharge outlet; Inputting the pre-discharge information into a water flow model to obtain tailwater diffusion conditions; Calculating the maximum concentration of tail water based on the tail water diffusion condition and the tail water component information; Determine whether the maximum concentration of the tail water exceeds a preset value; if so, adjust the pre-discharge information and re-input it into the water flow model for diffusion prediction until the maximum concentration of the tail water does not exceed the preset value, and send the adjusted pre-discharge information to each aquaculture discharge port; if not, directly send the pre-discharge information to each aquaculture discharge port; Real-time monitoring of discharge information and water quality information of each aquaculture discharge outlet; Compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, continue monitoring; if it is not consistent, conduct early warning processing; When the water quality information meets the requirements, continue monitoring; when the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet, and adjust the discharge information according to the tail water residue and water quality information.

2. The intelligent management method for aquaculture tailwater discharge according to claim 1, characterized in that: The method also includes: recording all warning events, emission adjustment records, and regularly generating monitoring emission reports.

3. The intelligent management method for aquaculture tailwater discharge according to claim 1, characterized in that: Adjusting the pre-emission information includes: Acquire concentration data of an aquaculture discharge outlet associated with a target location and within a target time period based on the tailwater diffusion condition; Determining contribution information of each associated aquaculture outfall to the concentration at the target location based on the concentration data; The pre-emission information is adjusted based on the contribution information.

4. The intelligent management method for aquaculture tailwater discharge according to claim 1, characterized in that: Generating a water flow model of the tailwater discharge area according to the modeling information and the location information includes: Constructing a topographic model of the tailwater discharge area according to the modeling information; Dividing the tailwater discharge area into a plurality of grids, and calculating the lateral flow between grid i and grid i+1 according to the modeling information; A lateral flow equation is established according to the topography and geomorphology model and the lateral flow to obtain a water flow model.

5. The intelligent management method for aquaculture tailwater discharge according to claim 1, characterized in that: Obtaining the tail water balance of each aquaculture discharge outlet, and adjusting the discharge information according to the tail water balance and water quality information, including: Obtaining the tailwater surplus of each aquaculture discharge outlet, and determining the priority of each aquaculture discharge outlet according to the tailwater surplus; The aquaculture discharge outlet with the highest priority is arranged first according to the priority; if the maximum tail water concentration cannot meet the needs of the aquaculture discharge outlet with the highest priority, a plurality of aquaculture discharge outlets with the lowest priority are postponed and the occupied concentrations are released and allocated to the aquaculture discharge outlet with the highest priority; if the maximum tail water concentration cannot meet the needs of the aquaculture discharge outlet with the highest priority, and the concentrations released by postponing a plurality of aquaculture discharge outlets with the lowest priority cannot meet the needs of the aquaculture discharge outlet with the highest priority, a plurality of aquaculture discharge outlets with the lowest priority and a plurality of aquaculture discharge outlets with medium priority are postponed and allocated to the aquaculture discharge outlet with the highest priority.

6. An intelligent management system for aquaculture tailwater discharge, characterized in that: The management system is used to implement an intelligent management method for aquaculture tailwater discharge according to any one of claims 1 to 5, comprising: An input module is used to obtain modeling information of the tailwater discharge area and location information of each aquaculture discharge outlet in the tailwater discharge area; A model generation module, generating a water flow model of the tailwater discharge area according to the modeling information and the location information; A collection module is used to obtain tailwater composition information of each aquaculture discharge outlet and obtain pre-discharge information of each aquaculture discharge outlet; A diffusion analysis module, used for inputting the pre-discharge information into a water flow model to obtain tailwater diffusion conditions; A concentration calculation module, used for calculating the maximum concentration of the tail water based on the tail water diffusion condition and the tail water component information; A judgment module, for judging whether the maximum concentration of the tail water exceeds a preset value, and sending pre-discharge information if it does not exceed the preset value to each aquaculture discharge port; An adjustment module, for adjusting the pre-discharge information when the maximum concentration of the tail water exceeds a preset value, and re-inputting the information into the water flow model for diffusion prediction until the maximum concentration of the tail water does not exceed the preset value; A control module, used for controlling each aquaculture discharge port to discharge tail water according to the pre-discharge information sent by the judgment module; The monitoring module monitors the discharge information and water quality information of each aquaculture discharge outlet in real time; A comparison module is used to compare the discharge information of each aquaculture discharge port with the pre-discharge information to determine whether the real-time monitored discharge information is consistent with the pre-discharge information; if it is consistent, continue monitoring; if it is not consistent, perform early warning processing; A water quality management module, used to determine whether the water quality information meets the requirements, and when the water quality information meets the requirements, continue monitoring; when the water quality information does not meet the requirements, obtain the tail water residue of each aquaculture discharge outlet, and adjust the discharge information according to the tail water residue and water quality information; The early warning module is used to issue an early warning according to the signal output by the comparison module.

7. The intelligent management system for aquaculture tailwater discharge according to claim 6 is characterized in that: The management system also includes a report generation module, which is used to record all warning events, emission adjustment records, and regularly generate monitoring emission reports.

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