River pollution tracing method and system based on underground water quality pollution monitoring

Abstract

The invention discloses a river pollution tracing method and system based on underground water quality pollution monitoring, and relates to the technical field of river pollution tracing. According to the river pollution tracing method based on underground water quality pollution monitoring, the real-time concentration value of each pollutant in underground water is obtained in real time and analyzed to obtain the underground water pollution real-time evaluation index; according to the method, a plurality of abnormal measurement points with abnormal concentration in a set area are identified, and the traceability position coordinate of each pollutant with abnormal concentration in underground water in a river is analyzed, so that the real-time evaluation index of underground water pollution can be continuously calculated by acquiring the pollutant concentration data of each measurement point in real time; and whether the pollutant concentration exceeds the preset range or not is judged in time, so that the defects of hysteresis and untimely data updating of traditional water quality monitoring are overcome, dynamic monitoring of the pollutant concentration can be realized, and quick response when the pollutant is abnormally increased is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of river pollution source tracing, and in particular to a river pollution source tracing method and system based on groundwater quality pollution monitoring. Background Art

[0002] With the rapid development of industrialization and urbanization, the impact of human activities on natural water resources is increasing. As the main source of water resources, groundwater and surface water are widely used in drinking water, agricultural irrigation and industrial production. However, due to the discharge of pollution sources such as industrial wastewater, agricultural runoff and domestic sewage, the water quality of groundwater and river water bodies is seriously threatened. The accumulation and spread of pollutants will not only cause water quality deterioration, but also bring long-term potential harm to the ecological environment and human health. Therefore, timely and accurate detection of groundwater and river water pollution and locating pollution sources in order to take effective pollution prevention and control measures are important issues that need to be urgently addressed in the current field of water environment protection.

[0003] Based on the above scheme, it is found that the limitations of the existing technology include at least the following problems. First, the traditional groundwater and river pollution monitoring technology is mainly limited to the surface assessment of water quality parameters in the set area, and fails to conduct in-depth tracing analysis for specific pollution sources and pollution paths, which easily leads to the assessment results being limited to the overall situation of pollutant concentrations in the region, and it is difficult to accurately identify the actual location and diffusion path of the pollution source. Secondly, the existing technology mostly adopts a single monitoring method, and the real-time performance and data update frequency are low, which makes it difficult to timely reflect the dynamic changes of pollutants in groundwater and rivers, which easily leads to difficulty in timely response and treatment when the pollutant concentration suddenly increases or abnormalities occur, increasing the risk of environmental pollution diffusion. In addition, the acquisition of hydraulic parameters such as water level and flow rate in the existing technology is usually carried out independently, and fails to be combined with the analysis of pollutant concentration and diffusion characteristics. There is a lack of comprehensive tracing algorithms, which easily leads to inaccurate pollution source positioning, and then leads to the blindness and inefficiency of pollution management measures, increasing the difficulty and cost of governance, and it is difficult to accurately trace the source and take effective management measures in a complex hydrological environment. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a river pollution source tracing method and system based on groundwater water quality pollution monitoring, which solves the problem that traditional groundwater and river pollution monitoring technologies are mainly limited to surface assessment of water quality parameters in a set area, but fail to conduct in-depth source tracing analysis on specific pollution sources and pollution paths, which easily leads to the evaluation results being limited to the overall situation of pollutant concentrations in the region, and it is difficult to accurately identify the actual location and diffusion path of the pollution source. Secondly, the prior art mostly adopts a single monitoring method, and the real-time performance and data update frequency are low, which makes it difficult to timely reflect the dynamic changes of pollutants in groundwater and rivers, which easily leads to difficulty in timely response and processing when the pollutant concentration suddenly increases or anomalies occur, increasing the risk of environmental pollution diffusion. In addition, the acquisition of hydraulic parameters such as water level and flow rate in the prior art is usually carried out independently, and fails to be combined with the analysis of pollutant concentration and diffusion characteristics, lacks a comprehensive source tracing algorithm, which easily leads to inaccurate pollution source tracing positioning, and then leads to the blindness and inefficiency of pollution management measures, increases the difficulty and cost of governance, and is difficult to accurately trace the source and take effective management measures in a complex hydrological environment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a river pollution tracing method based on groundwater quality pollution monitoring, comprising the following steps: obtaining the real-time concentration value of each pollutant in the groundwater at several measuring points in a set area in real time, and performing comprehensive analysis to obtain the real-time assessment index of groundwater pollution in the set area; judging in real time whether the real-time assessment index of groundwater pollution in the set area is within a preset assessment range; and when the real-time assessment index of groundwater pollution in the set area is outside the preset assessment range, identifying several abnormal measurement points with abnormal concentrations in the set area, as well as several pollutants with abnormal concentrations in the groundwater at each abnormal measurement point; obtaining the river water level in the set area. The values, river flow velocity values ​​and water level values ​​of each abnormal measurement point are comprehensively analyzed to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area is analyzed; the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater are comprehensively analyzed to obtain the source contribution value of each abnormal measurement point with abnormal concentration in the set area to each pollutant with abnormal concentration in the groundwater, and the source position coordinates of each abnormal concentration pollutant in the groundwater in the set area are analyzed to obtain corresponding management measures.

[0006] Furthermore, the specific steps for obtaining the real-time assessment index of groundwater pollution in the set area are as follows: obtaining the reference concentration value of each pollutant in the groundwater at each measuring point in the set area; comprehensively analyzing the real-time concentration value of each pollutant in the groundwater at each measuring point in the set area in combination with the reference concentration value to obtain the real-time assessment index of groundwater pollution in the set area.

[0007] Furthermore, the specific formula for calculating the real-time assessment index of groundwater pollution in a set area is as follows: Among them, WsP is the real-time assessment index of groundwater pollution in the set area, SsN gt is the real-time concentration value of the tth pollutant in the groundwater at the gth measurement point in the set area, CkN gt is the reference concentration value of the t-th pollutant in the groundwater at the g-th measurement point in the set area, α gt is the concentration coefficient of the tth pollutant in the groundwater at the gth measuring point in the set area, g = 1, 2, 3, ..., g0, g0 is the number of measuring points, t = 1, 2, 3, ..., t0, t0 is the number of pollutant species.

[0008] Furthermore, the specific steps for obtaining the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area are as follows: perform water level analysis on the river water level value and the water level value of each abnormal measurement point in the set area, respectively, to obtain the water level difference value between each abnormal measurement point with abnormal concentration in the set area and the river; obtain the horizontal distance value between each abnormal measurement point with abnormal concentration in the set area and the river, respectively, and perform comprehensive analysis in combination with the water level difference value between each abnormal measurement point with abnormal concentration in the set area and the river, to obtain the estimated groundwater flow velocity value of each abnormal measurement point with abnormal concentration in the set area; perform comprehensive analysis on the river flow velocity value in the set area in combination with the estimated groundwater flow velocity value of each abnormal measurement point with abnormal concentration in the set area, respectively, to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area; wherein, the specific formula for calculating the estimated groundwater flow velocity value of each abnormal measurement point with abnormal concentration in the set area is as follows: Among them, DsG i is the estimated groundwater velocity at the ith abnormal measurement point in the set area, ω is the permeability coefficient stored in the database, SjL i is the horizontal distance between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, ΔSW i DsW is the water level difference between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, i is the water level value of the i-th abnormal measurement point with abnormal concentration in the set area, HsW is the river water level value in the set area, i=1, 2, 3,…, i0, i0 is the number of abnormal measurement points.

[0009] Furthermore, the specific formula for calculating the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is as follows: ZsL i =HsS+ξ*DsG i Among them, ZsL i is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, HsS is the river flow velocity value in the set area, and DsG i is the estimated value of groundwater velocity at the ith abnormal measurement point with abnormal concentration in the set area, ξ is the coupling coefficient between groundwater and river stored in the database, i = 1, 2, 3, …, i0, i0 is the number of abnormal measurement points.

[0010] Furthermore, the specific steps of analyzing the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area are as follows: for each abnormal measurement point with abnormal concentration in the set area, the real-time concentration value of each abnormal concentration pollutant in the groundwater is comprehensively analyzed to obtain the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point in the set area, and the calculation formula is as follows: Among them, WyZ ip SsN is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ip is the reference concentration value of the pth abnormal concentration pollutant in groundwater at the ith abnormal measurement point in the set area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutants with abnormal concentration.

[0011] Furthermore, the specific steps for obtaining the traceability contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater are as follows: the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is combined with the pollution impact value of each abnormal concentration pollutant in the groundwater of each abnormal measurement point with abnormal concentration in the set area for comprehensive analysis, and the traceability contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater is obtained, and the calculation formula is as follows: Among them, SgX ip WyZ is the contribution value of the ith abnormal measurement point with abnormal concentration in the set area to the source of the pth abnormal concentration pollutant in groundwater. ip is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ZsLi is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, e is a natural constant, SsN ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ip is the reference concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, μ is the pollutant concentration influence coefficient stored in the database, ψ p is the attenuation coefficient of the pth abnormal concentration pollutant in the groundwater stored in the database, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutants with abnormal concentration.

[0012] Furthermore, the specific steps of analyzing and obtaining the coordinates of the source location of each abnormal concentration pollutant in the groundwater within the set area are as follows: obtain the horizontal and vertical coordinate values ​​of each abnormal measurement point of the abnormal concentration in the set area, and conduct a comprehensive analysis on the source contribution value of each abnormal concentration pollutant in the groundwater in combination with each abnormal measurement point of the abnormal concentration in the set area, and obtain the coordinates of the source location of each abnormal concentration pollutant in the groundwater in the set area in the river; wherein, the specific formula for calculating the coordinates of the source location of each abnormal concentration pollutant in the groundwater in the set area in the river is as follows: Among them, x p SgX is the horizontal coordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, ip is the contribution value of the ith abnormal measurement point in the set area to the source of the pth abnormal concentration pollutant in groundwater, x i Set the horizontal coordinate value of the ith abnormal measurement point with abnormal concentration in the area, y p y is the ordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, i Set the ordinate value of the i-th abnormal measurement point with abnormal concentration in the area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutant species with abnormal concentration.

[0013] Furthermore, the specific steps for taking corresponding management measures for the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river are: marking the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river respectively, and sending management recommendations for each abnormal pollutant concentration in the groundwater within the set area to relevant staff.

[0014] A river pollution source tracing system based on groundwater quality pollution monitoring includes: a concentration acquisition analysis module, a judgment module, a comprehensive analysis module, and a source tracing analysis module; the concentration acquisition analysis module is used to obtain the real-time concentration value of each pollutant in the groundwater at several measurement points in a set area in real time, and perform comprehensive analysis to obtain the real-time assessment index of groundwater pollution in the set area; the judgment module is used to judge in real time whether the real-time assessment index of groundwater pollution in the set area is within a preset assessment range, and when the real-time assessment index of groundwater pollution in the set area is outside the preset assessment range, identify several abnormal measurement points with abnormal concentration in the set area, and several pollutants with abnormal concentration in the groundwater at each abnormal measurement point; the comprehensive analysis module is used to obtain The river water level value, river flow velocity value and water level value of each abnormal measurement point in the set area are taken and comprehensively analyzed respectively to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and analyze the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area; the tracing analysis module is used to comprehensively analyze the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater, respectively, to obtain the tracing contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater, and analyze to obtain the tracing position coordinates of each abnormal concentration pollutant in the groundwater in the set area, and take corresponding management measures.

[0015] The present invention has the following beneficial effects:

[0016] (1) This river pollution source tracing method based on groundwater pollution monitoring can continuously calculate the real-time assessment index of groundwater pollution by acquiring the pollutant concentration data of each measuring point in real time, and promptly determine whether it exceeds the preset range, thereby making up for the lag and untimely data update defects of traditional water quality monitoring, and can realize dynamic monitoring of pollutant concentrations, ensuring rapid response when pollutants increase abnormally. Through this real-time assessment mechanism, it can provide timely data support for water environment protection and effectively prevent the risk of pollution spread.

[0017] (2) This river pollution source tracing method based on groundwater quality pollution monitoring calculates the comprehensive water flow velocity and pollutant source tracing contribution value by utilizing multiple parameters such as river water level, river flow velocity, water level difference and horizontal distance of abnormal measurement points, so as to accurately determine the source location of each abnormal concentration pollutant in the river. This comprehensive source tracing method overcomes the problem of insufficient source tracing accuracy in traditional methods, can more accurately locate the pollution source, provide a clear direction for subsequent pollution control, and improve the accuracy and efficiency of pollution source identification.

[0018] (3) This river pollution source tracing method based on groundwater pollution monitoring realizes a complete closed loop from monitoring to governance by marking the source location of pollutants and providing management suggestions to relevant personnel. Management suggestions are customized according to the source location and pollution degree of each pollutant, helping managers to take corresponding pollution control measures according to actual conditions. This targeted management method can effectively reduce the blindness of pollution control, save governance costs, reduce the continuous impact of pollutants on the environment, and promote the overall improvement of water environment quality.

[0019] (4) The river pollution source tracing system based on groundwater pollution quality monitoring realizes the automation and efficiency of pollution monitoring and source tracing analysis through modular design, improves the system's integration and ease of operation, and can realize the automation of the entire process from data collection, pollutant analysis to source tracing and positioning through the mutual collaboration among the concentration acquisition analysis module, judgment module, comprehensive analysis module and source tracing analysis module, thus reducing the complexity of human intervention. This design not only improves the efficiency of data processing, but also reduces the cost of system operation and maintenance, providing effective technical support for large-scale, real-time groundwater pollution monitoring and source tracing, and ensuring the long-term and reliable operation of the system.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a flow chart of a river pollution source tracing method based on groundwater quality pollution monitoring.

[0022] Figure 2 The present invention is a flowchart of the specific steps of obtaining the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in a set area in a river pollution tracing method based on groundwater quality pollution monitoring.

[0023] Figure 3 The present invention is a block diagram of a river pollution tracing system based on groundwater quality pollution monitoring. DETAILED DESCRIPTION

[0024] The embodiment of the present application solves the problem that traditional groundwater and river pollution monitoring technologies are mainly limited to surface assessment of water quality parameters in a set area, but fail to conduct in-depth tracing analysis on specific pollution sources and pollution paths, which easily leads to the evaluation results being limited to the overall situation of pollutant concentrations in the area, and it is difficult to accurately identify the actual location and diffusion path of the pollution source. Secondly, the existing technology mostly adopts a single monitoring method with low real-time performance and data update frequency, which makes it difficult to timely reflect the dynamic changes of pollutants in groundwater and rivers, which easily leads to difficulty in timely response and processing when the pollutant concentration suddenly increases or anomalies occur, increasing the risk of environmental pollution diffusion. In addition, the acquisition of hydraulic parameters such as water level and flow rate in the existing technology is usually carried out independently, and fails to be combined with the analysis of pollutant concentration and diffusion characteristics, lacks a comprehensive tracing algorithm, which easily leads to inaccurate pollution tracing positioning, and then leads to the blindness and inefficiency of pollution management measures, increases the difficulty and cost of governance, and is difficult to accurately trace the source and take effective management measures in a complex hydrological environment.

[0025] The overall idea of ​​the problem in the embodiment of this application is as follows:

[0026] First, the concentration value of each pollutant is obtained in real time at multiple groundwater measurement points in the set area, and these concentration data are comprehensively analyzed to calculate the real-time assessment index of groundwater pollution and determine whether it is within the preset safety range. When the real-time assessment index of groundwater pollution exceeds the preset range, the measurement points with abnormal concentrations are identified, and the river water level, river flow rate and water level value of each abnormal measurement point in the area are obtained. By analyzing the water level difference and horizontal distance, the groundwater flow rate and comprehensive water flow velocity value of each abnormal measurement point are calculated. Based on these data, the pollution impact value and traceability contribution value of each abnormal concentration pollutant in each abnormal measurement point are further analyzed, and finally the traceability position coordinates of each abnormal concentration pollutant are obtained. Finally, the traceability position of each abnormal concentration pollutant is marked in the river, and management suggestions are sent to relevant managers to effectively control and govern the pollution source.

[0027] See also Figure 1The embodiment of the present invention provides a technical solution: a river pollution source tracing method based on groundwater quality pollution monitoring, comprising the following steps: obtaining the real-time concentration value of each pollutant in the groundwater at several measuring points in a set area in real time (which can be obtained by an online water quality monitoring sensor), and performing a comprehensive analysis to obtain a real-time assessment index of groundwater pollution in the set area; judging in real time whether the real-time assessment index of groundwater pollution in the set area is within a preset assessment range; and when the real-time assessment index of groundwater pollution in the set area is outside the preset assessment range, identifying several abnormal measurement points with abnormal concentrations in the set area, and several pollutants with abnormal concentrations in the groundwater at each abnormal measurement point; obtaining the river water level value in the set area (which can be obtained by a water level meter), The river flow velocity value (which can be obtained by a flow meter) and the water level value of each abnormal measurement point (which can be obtained by a groundwater level meter) are comprehensively analyzed to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area is analyzed; the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater are comprehensively analyzed to obtain the source contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater, and the source position coordinates of each abnormal concentration pollutant in the groundwater in the set area are analyzed to obtain corresponding management measures.

[0028] Specifically, the specific steps for obtaining the real-time assessment index of groundwater pollution in a set area are as follows: obtain the reference concentration value of each pollutant in the groundwater at each measuring point in the set area; conduct a comprehensive analysis of the real-time concentration value of each pollutant in the groundwater at each measuring point in the set area in combination with the reference concentration value to obtain the real-time assessment index of groundwater pollution in the set area.

[0029] The specific formula for calculating the real-time assessment index of groundwater pollution in a set area is as follows: Among them, WsP is the real-time assessment index of groundwater pollution in the set area, SsN gt is the real-time concentration value of the tth pollutant in the groundwater at the gth measurement point in the set area, CkN gt is the reference concentration value of the t-th pollutant in the groundwater at the g-th measurement point in the set area, α gt is the concentration coefficient of the tth pollutant in the groundwater at the gth measuring point in the set area, g = 1, 2, 3, ..., g0, g0 is the number of measuring points, t = 1, 2, 3, ..., t0, t0 is the number of pollutant species.

[0030] It needs to be explained that the specific process of obtaining the reference concentration value of each pollutant in the groundwater at each measuring point in the set area is: for each measuring point in the set area, the historical concentration value of each pollutant in the groundwater at several historical time points is obtained, and the mean analysis is performed to obtain the reference concentration value of each pollutant in the groundwater at each measuring point in the set area.

[0031] α gt The specific calculation process is as follows: for the g-th measuring point in the set area, the reference concentration values ​​of each pollutant in the groundwater are summed and analyzed to obtain the reference concentration and value of groundwater pollutants at the g-th measuring point in the set area; then the reference concentration value of the t-th pollutant in the groundwater at the g-th measuring point in the set area is proportionally analyzed with the reference concentration and value of groundwater pollutants at the g-th measuring point, and the proportional analysis result is the corresponding coefficient.

[0032] In this implementation scheme, by obtaining the historical data of each measurement point for mean analysis, the reference concentration value of each pollutant is calculated, so that it is possible to more accurately evaluate whether the current concentration is abnormal. The mean calculation of the reference concentration avoids the accidental errors that may be caused by the data at a single time point, making the evaluation process more scientific and reliable. At the same time, the reference concentration values ​​of pollutants at different measurement points are calculated in proportion, which can more reasonably reflect the contribution of various pollutants to groundwater pollution and improve the accuracy of the evaluation index. By comparing and analyzing the real-time concentration with the reference concentration, the system can sensitively identify the abnormal situation of pollutant concentration and ensure that the pollution evaluation index can reflect the changes in groundwater pollution in real time. This method can timely detect the abnormal increase of pollutants and achieve rapid response to pollution events, which is helpful for the establishment of early warning mechanisms and the control of pollution spread, and provides effective decision-making support for managers. When calculating the real-time evaluation index of groundwater pollution, the concentration coefficient of each pollutant is obtained by analyzing the proportion of the reference concentration values ​​of each pollutant, so that the different impact levels of each pollutant are considered in the evaluation index. This weight distribution method based on actual data ensures the rationality and objectivity of the evaluation results, can more scientifically reflect the actual impact of pollutants in the set area, and avoids deviations caused by differences in pollutant types in the evaluation.

[0033] Specifically, Figure 2As shown, the specific steps for obtaining the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area are as follows: perform water level analysis on the river water level value and the water level value of each abnormal measurement point in the set area respectively, and obtain the water level difference value between each abnormal measurement point with abnormal concentration in the set area and the river; obtain the horizontal distance value between each abnormal measurement point with abnormal concentration in the set area and the river respectively, and perform comprehensive analysis in combination with the water level difference value between each abnormal measurement point with abnormal concentration in the set area and the river, and obtain the estimated groundwater flow velocity value of each abnormal measurement point with abnormal concentration in the set area; perform comprehensive analysis on the river flow velocity value in the set area in combination with the estimated groundwater flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area.

[0034] The specific formula for calculating the estimated groundwater velocity at each abnormal measurement point with abnormal concentration in the set area is as follows: Among them, DsG i is the estimated groundwater velocity at the ith abnormal measurement point in the set area, ω is the permeability coefficient stored in the database, SjL i is the horizontal distance between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, ΔSW i DsW is the water level difference between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, i is the water level value of the i-th abnormal measurement point with abnormal concentration in the set area, HsW is the river water level value in the set area, i=1, 2, 3,…, i0, i0 is the number of abnormal measurement points, and i0≤g0, g0 is the number of measurement points.

[0035] The specific formula for calculating the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is as follows: ZsL i =HsS+ξ*DsG i Among them, ZsL i is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, HsS is the river flow velocity value in the set area, and DsG i is the estimated value of groundwater velocity at the i-th abnormal measurement point with abnormal concentration in the set area, ξ is the coupling coefficient between groundwater and river stored in the database, i = 1, 2, 3, …, i0, i0 is the number of abnormal measurement points, and i0≤g0, g0 is the number of measurement points.

[0036] It should be explained that the permeability coefficient ω refers to the rate parameter of groundwater flowing in porous media (such as soil or rock), which is used to describe the ability of water to penetrate in the groundwater system. It can be obtained in the following ways:

[0037] Laboratory test method: Soil or rock samples are collected from underground and brought back to the laboratory for permeability testing, such as measuring the permeability coefficient through the Darcy test method or normal pressure permeability test. This method can provide more accurate permeability coefficient data and is suitable for detailed hydrogeological research.

[0038] Field test method: Conduct on-site permeability tests in the actual measurement area, such as directly measuring the permeability coefficient through a water pressure test (such as a constant head or variable head test). The field test results are affected by the actual environment and can more accurately reflect the permeability characteristics of the area, which is suitable for large-scale permeability measurements.

[0039] Hydrological model inversion method: The permeability coefficient is inverted and calculated using the hydrological model based on known groundwater level, flow velocity and other parameters. This method is usually used when the permeability coefficient is difficult to measure directly. It relies on existing hydrological data and obtains an estimated value of the permeability coefficient through model iteration.

[0040] The coupling coefficient ξ between groundwater and river is used to describe the interaction intensity between groundwater and river, which can be obtained in the following ways:

[0041] Observation data method: Through long-term observation of the mutual changes of river water level and groundwater level, the dynamic relationship between the two is analyzed to calculate the coupling coefficient. Generally, it is necessary to set up water level observation stations in the contact area of ​​​​the river and groundwater to monitor the changes in water levels. This method is intuitive and practical, but it requires the accumulation of long-term monitoring data.

[0042] Numerical model simulation method: Construct a hydrological model of groundwater and river coupling, simulate the changes in river water level and groundwater level, correct the model parameters, and finally obtain the coupling coefficient. This method can build a model based on existing groundwater and river data and is suitable for areas lacking observation data, but the accuracy of the model depends on the quality of the input data.

[0043] Regional water balance method: The coupling coefficient is calculated through the water balance in the region, and the water exchange between groundwater and rivers is analyzed to obtain the coupling strength between groundwater and rivers. This method is suitable for the study of regional groundwater and river interactions, but it may require a lot of simplified assumptions about the hydrological conditions in the region.

[0044] The specific implementation example of calculating the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is as follows, with the following data:

[0045] The river water level value in the set area is: 85m.

[0046] The river flow velocity value in the set area is: 0.3m / s.

[0047] The permeability coefficient stored in the database is: 0.02.

[0048] The coupling coefficient between groundwater and rivers stored in the database is: 0.6.

[0049] There are four abnormal measurement points with abnormal concentrations in the set area, and their data are as follows:

[0050] The horizontal distance between the anomaly measurement point of the first concentration anomaly and the river is: 150m.

[0051] The water level difference between the abnormal measurement point of the first concentration anomaly and the river is: 4m.

[0052] The water level value of the first abnormal measurement point with abnormal concentration is: 89m.

[0053] The horizontal distance between the abnormal measurement point of the second concentration anomaly and the river is: 120m.

[0054] The water level difference between the abnormal measurement point of the second concentration anomaly and the river is: 5m.

[0055] The water level value of the second abnormal measurement point with abnormal concentration is: 90m.

[0056] The horizontal distance between the abnormal measurement point of the third concentration anomaly and the river is: 180m.

[0057] The water level difference between the abnormal measurement point of the third concentration anomaly and the river is: 6m.

[0058] The water level value of the third abnormal measurement point with abnormal concentration is: 91m.

[0059] The horizontal distance between the fourth concentration anomaly measurement point and the river is: 160m.

[0060] The water level difference between the abnormal measurement point of the fourth concentration anomaly and the river is: 3m.

[0061] The water level value of the fourth abnormal measurement point with abnormal concentration is: 88m.

[0062] Substituting the above data into the calculation formula of the estimated groundwater flow velocity, we get:

[0063] The estimated groundwater velocity at the first abnormal measurement point with an abnormal concentration = 0.02*((89-85) / 150)) = 0.000533 m / s.

[0064] The estimated groundwater velocity at the second abnormal measurement point with an abnormal concentration = 0.02*((90-85) / 120)) = 0.000833 m / s.

[0065] The estimated groundwater velocity at the third abnormal measurement point with an abnormal concentration = 0.02*((91-85) / 180)) = 0.000667 m / s.

[0066] The estimated groundwater velocity at the fourth abnormal measurement point with abnormal concentration = 0.02*((88-85) / 160)) = 0.000375 m / s.

[0067] Substitute the estimated groundwater velocity values ​​of the above four abnormal measurement points with abnormal concentrations into the calculation formula of the comprehensive water flow velocity value to obtain:

[0068] The comprehensive water flow velocity value of the first abnormal measurement point with abnormal concentration = 0.3 + 0.6 * 0.000533 = 0.30032 m / s.

[0069] The comprehensive water flow velocity value of the second abnormal measurement point with abnormal concentration = 0.3 + 0.6 * 0.000833 = 0.3005 m / s.

[0070] The comprehensive water flow velocity value of the third abnormal measurement point with abnormal concentration = 0.3 + 0.6 * 0.000667 = 0.3004 m / s.

[0071] The comprehensive water flow velocity value of the fourth abnormal measurement point with abnormal concentration = 0.3 + 0.6 * 0.000375 = 0.300225 m / s.

[0072] In this implementation scheme, by using the permeability coefficient and the coupling coefficient between groundwater and rivers, this method can more accurately reflect the actual flow characteristics of groundwater and rivers when calculating the estimated groundwater flow velocity and the comprehensive water flow velocity value. This calculation method based on actual physical parameters overcomes the simple assumptions in traditional methods, making the estimated water flow velocity closer to the actual situation, which helps to improve the accuracy of subsequent source tracing analysis and provides a reliable data basis for accurately identifying pollution sources. The introduction of permeability coefficient and coupling coefficient can more comprehensively describe the complex interactive relationship between groundwater and rivers. In a set area, groundwater and rivers often have hydraulic connections, and traditional single water level or flow velocity analysis may be difficult to fully reflect this. The system has a kind of interactivity. By comprehensively analyzing the groundwater flow velocity and river flow velocity, it can accurately estimate the water flow changes in the interactive area, provide more reliable parameter support for source tracing analysis, and improve the positioning effect of the source of abnormal pollutants. By using the dynamic analysis of the permeability coefficient and the coupling coefficient, the groundwater flow velocity and river flow velocity in the set area can be monitored and adjusted in real time. Whether it is hydrological changes caused by seasonal changes or sudden pollution incidents, this method can respond and adjust the flow velocity estimation value in time, providing management personnel with real-time data basis. This dynamic monitoring capability helps management departments to take targeted management measures more flexibly after the pollution source is identified, effectively reduce the risk of pollution spread, and improve the efficiency of water environment protection.

[0073] Specifically, the specific steps of analyzing the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area are as follows: for each abnormal measurement point with abnormal concentration in the set area, the real-time concentration value of each abnormal concentration pollutant in the groundwater is comprehensively analyzed to obtain the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point in the set area, and the calculation formula is as follows: Among them, WyZ ip SsN is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ip is the reference concentration value of the pth abnormal concentration pollutant in groundwater at the i-th abnormal measurement point with abnormal concentration in the set area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, and i0≤g0, g0 is the number of measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutant species with abnormal concentration, and p0≤t0, t0 is the number of pollutant species.

[0074] In this implementation scheme, by calculating the pollution impact value of different pollutants in each abnormal measurement point, it is possible to identify which pollutants have a greater impact on the groundwater environment. The real-time concentration is compared with the reference concentration in the formula to quantify the degree of abnormal concentration of the pollutant, so that the pollution impact value can truly reflect the degree of deviation of the pollutant from the normal level. This quantitative analysis method improves the accuracy of the assessment and helps managers quickly identify the main pollutants among a variety of pollutants, thereby concentrating resources to prioritize the control of the most influential pollution sources and improve the efficiency of pollution control. This method monitors the concentration of each pollutant in real time and compares it with the reference concentration, and can sensitively capture any abnormal changes in concentration. This real-time calculated pollution impact value can help the system quickly detect pollution incidents in groundwater and form a Timely warning. Compared with traditional periodic monitoring, this real-time impact value analysis improves the timeliness of monitoring, allowing managers to take corresponding measures when pollution just occurs, reduce the risk of pollution spread, and effectively ensure groundwater quality. Since the types of pollutants and the degree of abnormal concentration at each abnormal measurement point are different, the calculation of the pollution impact value provides a personalized pollution situation analysis for each measurement point, so that different management strategies and governance plans can be customized according to different pollution impact values. For example, more stringent management measures can be taken for measurement points with high pollution impact values, while routine monitoring and maintenance are adopted for measurement points with low pollution impact values. This personalized management method helps to achieve the rational allocation of resources and optimize governance plans, thereby improving the overall water pollution prevention and control effect.

[0075] Specifically, the specific steps for obtaining the traceability contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater are as follows: the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is combined with the pollution impact value of each abnormal concentration pollutant in the groundwater of each abnormal measurement point with abnormal concentration in the set area for comprehensive analysis, and the traceability contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater is obtained, and the calculation formula is as follows: Among them, SgX ip WyZ is the contribution value of the ith abnormal measurement point with abnormal concentration in the set area to the source of the pth abnormal concentration pollutant in groundwater. ip is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ZsL i is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, e is a natural constant, which is 2.71 in this embodiment, SsN ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ipis the reference concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, μ is the pollutant concentration influence coefficient stored in the database, ψ p is the attenuation coefficient of the pth abnormal concentration pollutant in the groundwater stored in the database, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, and i0≤g0, g0 is the number of measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutant species with abnormal concentration, and p0≤t0, t0 is the number of pollutant species.

[0076] It should be explained that the pollutant concentration impact coefficient μ is used to describe the impact of a specific pollutant on the environment under abnormal concentration conditions, which can be obtained in the following ways:

[0077] Historical data analysis method: By analyzing the long-term monitoring data in the set area, the impact of pollutants on groundwater quality under different abnormal concentration conditions is compared. For example, by analyzing the pollution event data in historical events, the impact trend of each pollutant under abnormal concentration is calculated. This method can be carried out on the basis of existing monitoring data and can reflect the relationship between pollutant concentration and its environmental impact.

[0078] Laboratory test method: Under laboratory conditions, by controlling the concentration of pollutants and observing their impact on groundwater or simulated water bodies, a database of pollutant concentration impact coefficients is established based on the environmental impacts of pollutants at different concentrations. This method is suitable for establishing concentration impact coefficients for new or unknown pollutants.

[0079] Model calculation method: Use water quality models, such as diffusion models or risk models, to simulate the diffusion and impact of pollutants on groundwater at different concentrations, so as to determine the pollutant concentration impact coefficient. This method is suitable for situations where there is a lack of field data, and the impact of pollutants can be inferred through model calculations.

[0080] The attenuation coefficient ψ of abnormally concentrated pollutants in groundwater is used to describe the rate at which pollutants decrease over time or distance in the groundwater environment. It can be obtained in the following ways:

[0081] Laboratory degradation experiment: simulate the groundwater environment in the laboratory and observe the concentration decay of pollutants under specific conditions. For example, specific pollutants can be added to groundwater samples, and their concentration changes over time can be measured and the decay rate can be calculated. This method can obtain a more accurate attenuation coefficient under controlled conditions and is suitable for establishing a standard attenuation coefficient in the database.

[0082] Field test method: measure the concentration changes of pollutants at different distances in the actual environment, and use the first-order reaction attenuation model or other attenuation models to calculate the attenuation coefficient. For example, select the pollutant source point and monitoring points at different downstream locations, and calculate the attenuation rate of the pollutant by fitting the model. This method can reflect the attenuation of pollutants in the actual groundwater environment, but it will be affected by environmental factors and is suitable for field calibration.

[0083] Literature and database search: For known pollutants, the attenuation coefficients of common pollutants in groundwater can be obtained by searching literature or existing databases (such as USEPA, WHO, etc.). This method is suitable for preliminary estimates of common pollutants, but actual application needs to be adjusted according to the local environment.

[0084] Numerical model inversion method: Based on parameters such as groundwater flow rate and pollutant concentration changes, the attenuation coefficient of pollutants is calculated through numerical model inversion. This method is suitable for situations where field data is lacking, but the accuracy of the model depends on the accuracy of the input data and model parameters.

[0085] In this implementation scheme, by introducing the pollutant concentration influence coefficient and attenuation coefficient, this method can quantify the impact of pollutants with abnormal concentrations on the environment. The concentration influence coefficient can quantify the environmental impact of pollutants when the concentration is abnormal, while the attenuation coefficient describes the attenuation characteristics of pollutants with distance or time. Combining the two for analysis can comprehensively evaluate the potential diffusion and impact area of ​​pollutants, and provide a scientific basis for the accurate tracing and risk assessment of pollutants. Using the pollutant concentration influence coefficient and attenuation coefficient, this method can more accurately calculate the contribution value of each abnormal measurement point to the tracing of pollutants. The introduction of the attenuation coefficient can take into account the concentration decrease effect of pollutants with distance or time, while the concentration influence coefficient can quantify the pollution. The environmental threat of pollutants is a multi-parameter source tracing analysis method that overcomes the limitations of traditional single concentration analysis, can locate the pollution source more scientifically, and improve the accuracy of source tracing analysis. The pollutant source tracing contribution value of each abnormal measurement point is a comprehensive result based on real-time concentration, concentration influence coefficient and attenuation coefficient. Management departments can accurately determine the source and diffusion range of pollutants based on these source tracing contribution values, and formulate personalized pollution control strategies. Stronger control measures can be taken for pollution sources with high contribution values ​​and large impacts, while monitoring management is adopted for areas with small contribution values. This personalized management method can optimize the allocation of governance resources, improve the efficiency and effectiveness of pollution control, and help achieve scientific and effective water environment protection.

[0086] Specifically, the specific steps for analyzing and obtaining the source location coordinates of each abnormal concentration pollutant in the groundwater in the set area are as follows: obtain the horizontal and vertical coordinate values ​​of each abnormal measurement point with abnormal concentration in the set area (which can be obtained through GPS, and the coordinate system uses the set point in the river as the coordinate origin, the river flow direction as the horizontal coordinate, and the vertical coordinate perpendicular to the flow direction as the vertical coordinate), and conduct a comprehensive analysis on the source contribution value of each abnormal concentration pollutant in the groundwater based on each abnormal measurement point with abnormal concentration in the set area, so as to obtain the source location coordinates of each abnormal concentration pollutant in the groundwater in the set area in the river.

[0087] The specific formula for calculating the source location coordinates of each abnormal concentration pollutant in the groundwater within the set area in the river is as follows: Among them, x p SgX is the horizontal coordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, ip is the contribution value of the ith abnormal measurement point in the set area to the source of the pth abnormal concentration pollutant in groundwater, x i Set the horizontal coordinate value of the ith abnormal measurement point with abnormal concentration in the area, y p y is the ordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, i Set the ordinate value of the i-th abnormal measurement point with abnormal concentration in the area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, and i0≤g0, g0 is the number of measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutant species with abnormal concentration, and p0≤t0, t0 is the number of pollutant species.

[0088] In this implementation scheme, by combining the coordinate values ​​of each abnormal measurement point and the traceability contribution value of each measurement point to the pollutant, this method can accurately locate the traceability position of each abnormal concentration pollutant in the river in space. The traceability contribution value is used as the weight in the formula to weighted average the impact of different measurement points on the pollution source, and comprehensively obtain the actual source coordinates of the pollutant. This calculation method based on coordinate weights and traceability contribution values ​​is more accurate than the traditional simple position weighted method, and can significantly improve the effect of locating the pollution source, which helps the management department to quickly take targeted governance measures. This method can not only locate the traceability position of a single pollutant, but also calculate the traceability position of each pollutant separately when multiple pollutants exist at the same time. By calculating the traceability coordinates of each pollutant one by one, the system can identify Different pollutants may have different pollution sources, thus supporting the precise management of multi-source pollution. In this way, targeted control measures can be taken, such as special control of the source of specific pollutants, to improve the pertinence and effectiveness of pollution control. This method comprehensively utilizes the coordinates of abnormal measurement points, traceability contribution values ​​and GPS data to conduct multi-level and multi-factor analysis to calculate the traceability location coordinates of each pollutant. This multi-parameter comprehensive analysis improves the scientific nature of data processing, ensures that the calculation results are more in line with the actual situation, and provides strong data support for traceability. Compared with the traditional traceability method based on a single measurement point, this method avoids the error of single-point measurement by integrating data from multiple abnormal measurement points, provides more comprehensive and accurate pollution traceability analysis results, and lays the foundation for accurately locating pollution sources.

[0089] Specifically, the specific steps for taking corresponding management measures for the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river are: marking the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river respectively, and sending management recommendations for each abnormal pollutant concentration in the groundwater within the set area to relevant staff.

[0090] The specific implementation examples are as follows:

[0091] If the pollutant is ammonia nitrogen, source control suggestions will be sent to relevant staff (i.e., strengthen nitrogen fertilizer management in agricultural areas, limit excessive use of nitrogen fertilizers, and promote the use of organic fertilizers instead of chemical fertilizers to reduce the influx of ammonia nitrogen), aquaculture wastewater management suggestions (i.e., strengthen wastewater treatment in aquaculture farms to ensure that ammonia nitrogen concentrations meet standards before wastewater discharge), and ecological restoration suggestions (i.e., plant aquatic plants with strong ammonia nitrogen absorption capabilities (such as reeds or water hyacinths) around the source location to help naturally absorb ammonia nitrogen in the water and reduce ammonia nitrogen concentrations).

[0092] If the pollutant is nitrate, suggestions for precision fertilization (i.e., promoting precision fertilization technology in agricultural areas, reducing excessive use of nitrate fertilizers, and reducing the concentration of nitrate in groundwater and surface water) will be sent to relevant staff, suggestions for building vegetation buffer zones (i.e., planting deep-rooted plants in polluted areas to form vegetation buffer zones to reduce the infiltration of nitrate in surface runoff), and suggestions for water quality remediation (i.e., conducting bioremediation near the pollution source and introducing specific microorganisms to degrade nitrates and reduce their impact on water quality) will be sent.

[0093] If the pollutant is phosphate, agricultural source control recommendations (i.e., promoting low-phosphorus or phosphorus-free fertilizers in agricultural areas to prevent phosphate from entering the water body with runoff), sewage treatment recommendations (i.e., strengthening phosphorus removal treatment of sewage in living areas, using phosphorus adsorption materials or chemical precipitation methods to reduce phosphorus emissions), and wetland construction recommendations (i.e., establishing a wetland system around the source location to prevent further spread of phosphate by absorbing and fixing phosphate through wetland plants and microorganisms) will be sent to relevant staff.

[0094] If the pollutant is a heavy metal (such as lead (Pb), cadmium (Cd), mercury (Hg), etc.), suggestions for pollution source isolation (i.e. setting up underground isolation barriers around the heavy metal pollution site to prevent heavy metals from seeping into the groundwater system), phytoremediation suggestions (i.e. using hyperaccumulator plants (such as mustard and humulium) to absorb heavy metals in the polluted area, and regularly harvesting and processing them to reduce the soil and water concentrations of heavy metals), and suggestions for the application of soil conditioners (i.e. adding calcium, phosphates and other conditioners to the polluted area to fix the heavy metals in the soil and make them less soluble and less likely to migrate) will be sent to relevant staff.

[0095] If the pollutant is a petroleum pollutant (such as petroleum hydrocarbons, etc.), suggestions for pollutant retention (i.e., using adsorbent materials (such as activated carbon or oil-absorbing materials) at the source of pollution to absorb petroleum hydrocarbons in the water), suggestions for microbial degradation (i.e., introducing specific microorganisms that can degrade petroleum pollutants to promote the natural degradation of pollutants), and suggestions for anti-seepage (i.e., conducting anti-seepage treatment on facilities at gas stations, oil storage depots, etc. to prevent petroleum pollutants from entering groundwater) will be sent to relevant staff.

[0096] In this implementation plan, by marking the traceability location coordinates of each pollutant with abnormal concentration, the system can help managers accurately locate the pollution source and take targeted governance measures. This precise marking method avoids broad-based governance and ensures that governance resources are concentrated on the most polluted or critical areas. Managers can quickly find the pollution source based on the marked location and carry out targeted treatment work, thereby greatly improving governance efficiency, saving governance costs, and avoiding unnecessary waste of resources. The system will send the traceability location and corresponding management suggestions to relevant staff at the same time, so that managers can quickly get treatment guidance after the pollution source is marked. This management suggestion usually provides specific governance plans or preventive measures based on the type of pollutant and the degree of pollution, helping workers Compared with the traditional method of waiting for decision instructions, this instant suggestion improves the response speed and helps to take immediate measures after the pollution source is discovered to prevent further spread of pollution. By marking the source of pollutants and sending management suggestions, this system realizes a complete closed-loop management process from monitoring, tracing to governance. Marking the pollution source and sending management suggestions can ensure that each pollution incident is handled in a timely manner and form a systematic pollution prevention and control system. This closed-loop management process can not only maintain the stability of groundwater and river water quality in daily environmental monitoring, but also provide effective control solutions in the event of sudden pollution incidents, thereby ensuring the safety of the water environment in the region and avoiding long-term harm of pollution to the ecology and human health.

[0097] See also Figure 3The embodiment of the present invention provides a technical solution: a river pollution source tracing system based on groundwater quality pollution monitoring, comprising: a concentration acquisition analysis module, a judgment module, a comprehensive analysis module, and a source tracing analysis module; the concentration acquisition analysis module is used to obtain the real-time concentration value of each pollutant in the groundwater at several measurement points in a set area in real time, and perform a comprehensive analysis to obtain the real-time assessment index of groundwater pollution in the set area; the judgment module is used to judge in real time whether the real-time assessment index of groundwater pollution in the set area is within a preset assessment range, and when the real-time assessment index of groundwater pollution in the set area is outside the preset assessment range, identify several abnormal measurement points with abnormal concentration in the set area, and several pollutants with abnormal concentration in the groundwater at each abnormal measurement point; comprehensive analysis A module is used to obtain the river water level value, river flow velocity value and water level value of each abnormal measurement point in the set area and conduct comprehensive analysis respectively, to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and analyze the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area; a source tracing analysis module is used to conduct comprehensive analysis on the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater, to obtain the tracing contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater, and analyze to obtain the tracing position coordinates of each abnormal concentration pollutant in the groundwater in the set area, and take corresponding management measures.

[0098] In summary, this application has at least the following effects:

[0099] By acquiring pollutant concentration data at each measuring point in real time, we can continuously calculate the real-time assessment index of groundwater pollution and promptly determine whether it exceeds the preset range, thereby making up for the lag in traditional water quality monitoring and the lack of timely data updates. It can realize dynamic monitoring of pollutant concentrations and ensure rapid response when pollutants increase abnormally. Through this real-time assessment mechanism, we can provide timely data support for water environment protection and effectively prevent the risk of pollution spread.

[0100] By utilizing multiple parameters such as river water level, river flow velocity, water level difference and horizontal distance of abnormal measurement points, the comprehensive water flow velocity and pollutant source tracing contribution value are calculated, thereby accurately determining the source location of each pollutant with abnormal concentration in the river. This comprehensive tracing method overcomes the problem of insufficient tracing accuracy in traditional methods, can more accurately lock the location of the pollution source, provide a clear direction for subsequent pollution control, and improve the accuracy and efficiency of pollution source identification.

[0101] By marking the source of pollutants and providing management suggestions to relevant personnel, a complete closed loop from monitoring to governance is achieved. Management suggestions are customized according to the source location and pollution level of each pollutant, helping managers to take corresponding pollution control measures according to actual conditions. This targeted management method can effectively reduce the blindness of pollution control, save governance costs, reduce the continuous impact of pollutants on the environment, and promote the overall improvement of water environment quality.

[0102] Modular design realizes automation and efficiency of pollution monitoring and source tracing analysis, improves the system's integration and ease of operation, and through the collaboration between the concentration acquisition analysis module, judgment module, comprehensive analysis module and source tracing analysis module, it can realize full-process automation from data collection, pollutant analysis to source tracing and positioning, reducing the complexity of human intervention. This design not only improves the efficiency of data processing, but also reduces the cost of system operation and maintenance, providing effective technical support for large-scale, real-time groundwater pollution monitoring and source tracing, and ensuring the long-term and reliable operation of the system.

[0103] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0104] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A river pollution source tracing method based on groundwater pollution monitoring, characterized in that: The following steps are involved: Obtain the real-time concentration value of each pollutant in the groundwater at several measurement points in the set area, and conduct a comprehensive analysis to obtain the real-time assessment index of groundwater pollution in the set area; Real-time judgment of whether the groundwater pollution real-time assessment index in the set area is within the preset assessment range; When the real-time assessment index of groundwater pollution in a set area is outside a preset assessment range, a number of abnormal measurement points with abnormal concentrations in the set area and a number of pollutants with abnormal concentrations in the groundwater at each abnormal measurement point are identified; Obtain the river water level value, river flow velocity value and water level value of each abnormal measurement point in the set area and conduct comprehensive analysis respectively, obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and analyze the pollution impact value of each abnormal concentration pollutant in the groundwater of each abnormal measurement point with abnormal concentration in the set area; A comprehensive analysis is conducted on the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater, and the source contribution value of each abnormal concentration measurement point in the set area to each pollutant with abnormal concentration in the groundwater is obtained. The source position coordinates of each abnormal concentration pollutant in the groundwater in the set area in the river are analyzed, and corresponding management measures are taken.

2. The river pollution source tracing method based on groundwater pollution monitoring according to claim 1 is characterized in that: The specific steps to obtain the real-time assessment index of groundwater pollution in the set area are as follows: Obtain reference concentration values ​​of each pollutant in groundwater at each measuring point within a set area; The real-time concentration value of each pollutant in the groundwater at each measuring point in the set area is combined with the reference concentration value for comprehensive analysis to obtain the real-time assessment index of groundwater pollution in the set area.

3. The method for tracing the source of river pollution based on groundwater quality pollution monitoring according to claim 2 is characterized in that: The specific formula for calculating the real-time assessment index of groundwater pollution in a set area is as follows: Among them, WsP is the real-time assessment index of groundwater pollution in the set area, SsN gt is the real-time concentration value of the tth pollutant in the groundwater at the gth measurement point in the set area, CkN gt is the reference concentration value of the t-th pollutant in the groundwater at the g-th measurement point in the set area, α gt is the concentration coefficient of the tth pollutant in the groundwater at the gth measuring point in the set area, g = 1, 2, 3, ..., g0, g0 is the number of measuring points, t = 1, 2, 3, ..., t0, t0 is the number of pollutant species.

4. The method for tracing the source of river pollution based on groundwater quality pollution monitoring according to claim 1 is characterized in that: The specific steps to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area are as follows: Perform water level analysis on the river water level value in the set area and the water level value of each abnormal measurement point, and obtain the water level difference between each abnormal measurement point with abnormal concentration in the set area and the river; The horizontal distance value between each abnormal measurement point of the concentration anomaly in the set area and the river is obtained respectively, and the water level difference value between each abnormal measurement point of the concentration anomaly in the set area and the river is combined for comprehensive analysis to obtain the estimated groundwater flow velocity value of each abnormal measurement point of the concentration anomaly in the set area; Comprehensively analyze the river flow velocity values ​​in the set area in combination with the estimated groundwater flow velocity values ​​at each abnormal measurement point with abnormal concentration in the set area, and obtain the comprehensive water flow velocity value at each abnormal measurement point with abnormal concentration in the set area; The specific formula for calculating the estimated value of groundwater flow velocity at each abnormal measurement point within the set area with abnormal concentration is as follows: Among them, DsG i is the estimated groundwater velocity at the ith abnormal measurement point in the set area, ω is the permeability coefficient stored in the database, SjL i is the horizontal distance between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, ΔSW i DsW is the water level difference between the i-th abnormal measurement point of the concentration anomaly in the set area and the river, i is the water level value of the i-th abnormal measurement point with abnormal concentration in the set area, HsW is the river water level value in the set area, i=1, 2, 3,…, i0, i0 is the number of abnormal measurement points.

5. The method for tracing the source of river pollution based on groundwater pollution monitoring according to claim 4 is characterized in that: The specific formula for calculating the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is as follows: ZsL i =HsS+ξ*DsG i ; Among them, ZsL i is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, HsS is the river flow velocity value in the set area, DsG i is the estimated value of groundwater velocity at the ith abnormal measurement point with abnormal concentration in the set area, ξ is the coupling coefficient between groundwater and river stored in the database, i = 1, 2, 3, …, i0, i0 is the number of abnormal measurement points.

6. The method for tracing the source of river pollution based on groundwater pollution monitoring according to claim 1 is characterized in that: The specific steps for analyzing the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area are as follows: For each abnormal measurement point with abnormal concentration in the set area, the real-time concentration value of each abnormal concentration pollutant in the groundwater is comprehensively analyzed to obtain the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point in the set area. The calculation formula is as follows: Among them, WyZ ip SsN is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ip is the reference concentration value of the pth abnormal concentration pollutant in groundwater at the ith abnormal measurement point in the set area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutants with abnormal concentration.

7. The method for tracing the source of river pollution based on groundwater pollution monitoring according to claim 1 is characterized in that: The specific steps to obtain the traceability contribution value of each abnormal concentration measurement point in the set area to each abnormal concentration pollutant in groundwater are as follows: The comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area is combined with the pollution impact value of each abnormal concentration pollutant in the groundwater at each abnormal measurement point with abnormal concentration in the set area for comprehensive analysis, and the source tracing contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater is obtained. The calculation formula is as follows: Among them, SgX ip WyZ is the contribution value of the ith abnormal measurement point with abnormal concentration in the set area to the source of the pth abnormal concentration pollutant in groundwater. ip is the pollution impact value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point with abnormal concentration in the set area, ZsL i is the comprehensive water flow velocity value of the ith abnormal measurement point with abnormal concentration in the set area, e is a natural constant, SsN ip is the real-time concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, CkN ip is the reference concentration value of the pth abnormal concentration pollutant in the groundwater at the ith abnormal measurement point in the set area, μ is the pollutant concentration influence coefficient stored in the database, ψ p is the attenuation coefficient of the pth abnormal concentration pollutant in the groundwater stored in the database, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutants with abnormal concentration.

8. The method for tracing the source of river pollution based on groundwater quality pollution monitoring according to claim 1 is characterized in that: The specific steps for analyzing and obtaining the coordinates of the source location of each abnormal concentration of pollutants in the groundwater within the set area are as follows: Obtain the horizontal and vertical coordinate values ​​of each abnormal measurement point of the concentration abnormality in the set area, and conduct a comprehensive analysis on the source tracing contribution value of each abnormal concentration pollutant in the groundwater in combination with each abnormal measurement point of the concentration abnormality in the set area, and obtain the source tracing position coordinates of each abnormal concentration pollutant in the groundwater in the set area in the river; The specific formula for calculating the source location coordinates of each abnormal concentration pollutant in the groundwater within the set area in the river is as follows: Among them, x p SgX is the horizontal coordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, ip is the contribution value of the ith abnormal measurement point in the set area to the source of the pth abnormal concentration pollutant in groundwater, x i Set the horizontal coordinate value of the ith abnormal measurement point with abnormal concentration in the area, y p y is the ordinate of the source position of the pth abnormal concentration pollutant in the groundwater in the set area in the river, i Set the ordinate value of the i-th abnormal measurement point with abnormal concentration in the area, i = 1, 2, 3, ..., i0, i0 is the number of abnormal measurement points, p = 1, 2, 3, ..., p0, p0 is the number of pollutant species with abnormal concentration.

9. The method for tracing the source of river pollution based on groundwater pollution monitoring according to claim 1 is characterized in that: The specific steps for taking corresponding management measures for the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river are: marking the source location coordinates of each abnormal pollutant concentration in the groundwater within the set area in the river respectively, and sending management recommendations for each abnormal pollutant concentration in the groundwater within the set area to relevant staff.

10. A river pollution source tracing system based on groundwater quality pollution monitoring, using the river pollution source tracing method based on groundwater quality pollution monitoring according to any one of claims 1 to 9, characterized in that: include: Concentration acquisition analysis module, judgment module, comprehensive analysis module, and traceability analysis module; The concentration acquisition and analysis module is used to acquire the real-time concentration value of each pollutant in the groundwater at several measurement points in a set area in real time, and conduct a comprehensive analysis to obtain a real-time assessment index of groundwater pollution in the set area; The judgment module is used to judge in real time whether the real-time assessment index of groundwater pollution in a set area is within a preset assessment range, and when the real-time assessment index of groundwater pollution in the set area is outside the preset assessment range, identify several abnormal measurement points with abnormal concentrations in the set area, and several pollutants with abnormal concentrations in the groundwater at each abnormal measurement point; The comprehensive analysis module is used to obtain the river water level value, river flow velocity value and water level value of each abnormal measurement point in the set area and perform comprehensive analysis respectively, to obtain the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area, and to analyze the pollution impact value of each abnormal concentration pollutant in the groundwater of each abnormal measurement point with abnormal concentration in the set area; The source tracing analysis module is used to comprehensively analyze the comprehensive water flow velocity value of each abnormal measurement point with abnormal concentration in the set area and the pollution impact value of each abnormal concentration pollutant in the groundwater, obtain the source tracing contribution value of each abnormal measurement point with abnormal concentration in the set area to each abnormal concentration pollutant in the groundwater, and analyze to obtain the source tracing position coordinates of each abnormal concentration pollutant in the groundwater in the set area in the river, and take corresponding management measures.

Images