A method, device and storage medium for analyzing a migration process of a water environmental pollutant

Abstract

The application provides a water environment pollutant migration process analysis method, device and storage medium, relates to the water environment pollutant analysis technical field, and the method comprises the steps of obtaining remote sensing information; according to the remote sensing information, obtaining pollution source distribution information and water body distribution information; according to the pollution source distribution information, obtaining pollutant component information; obtaining water body component information; according to the pollutant component information and the water body component information, obtaining a pollutant source-sink relationship; obtaining pollutant migration path information based on an artificial DNA tracer; inputting the pollutant component information and the pollutant migration path information into a migration simulation processing model to obtain pollutant migration and conversion simulation information; according to the pollutant source-sink relationship information, the pollutant migration path information and the pollutant migration and conversion simulation information, generating pollutant migration process information, representing the migration process of the pollutant "source-path-conversion-collection" in the water environment, and providing data information basis for water pollution treatment.

Description

Technical Field

[0001] This invention relates to the field of water environment pollutant analysis technology, and in particular to a method, equipment and storage medium for analyzing the migration process of water environment pollutants. Background Technology

[0002] Water resources are of vital importance to human health, ecological balance, and economic development, and are a crucial guarantee for achieving sustainable development. Water environment governance can maintain the cleanliness of water resources. By analyzing pollutants generated by pollution sources, we can gain a deeper understanding of the transport patterns and diffusion trends of pollutants in water bodies, providing a scientific basis for developing targeted governance measures and effectively preventing and mitigating the adverse environmental impacts of water pollution.

[0003] However, due to the numerous types of pollution sources, complex migration and transformation pathways, and unclear diffusion trends, the migration process of pollutants from "source to path to transformation and accumulation" is unclear. Existing water pollution analysis methods also lack a complete characterization of pollutant migration processes, making it difficult to achieve stable and sustainable treatment effects in water pollution control and ecological restoration projects. Furthermore, with numerous pollution sources, the migration pathways of different sources overlap, making it difficult to distinguish between them during simultaneous analysis. This typically necessitates analyzing each pollution source individually, resulting in low analytical efficiency.

[0004] Therefore, in the process of water pollution analysis, it is urgent to solve the problem of how to obtain the complete migration process of pollutants from "source to path to transformation to accumulation" in order to provide a basis for water pollution control, and to distinguish multiple pollution sources to improve analysis efficiency. Summary of the Invention

[0005] This invention provides a method, equipment, and storage medium for analyzing the migration process of pollutants in the water environment, thereby addressing the shortcomings of existing technologies in analyzing water pollution processes that cannot obtain the complete migration process of pollutants.

[0006] This invention provides a method for analyzing the migration process of pollutants in the water environment, comprising:

[0007] Acquire remote sensing information of the analysis area;

[0008] Based on the remote sensing information, information on the distribution of pollution sources and water bodies is obtained;

[0009] Based on the pollution source distribution information, obtain the pollutant composition information of each pollution source;

[0010] Obtain water composition information from each monitoring station in the analysis area;

[0011] Based on the pollutant composition information and the water composition information, pollutant source-sink relationship information is obtained, which characterizes the correlation between the source and sink of pollutants.

[0012] The pollutant migration path information is obtained by releasing artificial DNA tracers of different sequences into the pollution source according to the pollution source distribution information, and then collecting the artificial DNA tracers at different detection points according to the water body distribution information.

[0013] The pollutant composition information and the pollutant migration path information are input into the migration simulation processing model to obtain pollutant migration and transformation simulation information, which characterizes the transformation of pollutants during the migration process.

[0014] Based on the pollutant source-sink relationship information, the pollutant migration path information, and the pollutant migration and transformation simulation information, pollutant migration process information is generated, which characterizes the source, path, transformation, and destination of pollutant migration.

[0015] According to the present invention, a method for analyzing the migration process of pollutants in aquatic environments includes obtaining pollutant source-sink relationship information based on the pollutant composition information and the water body composition information, comprising:

[0016] Based on the pollutant composition information, the first water chemical index, the first isotope information, and the first water quality fluorescent fingerprint are determined;

[0017] Based on the water composition information, a second chemical index, a second isotope information, and a second water quality fluorescent fingerprint are determined;

[0018] Based on factor analysis, the first water chemical index, the first isotope information, the first water quality fluorescence fingerprint, the second chemical index, the second isotope information, and the second water quality fluorescence fingerprint are analyzed to obtain the pollution source contribution rate. The pollution source contribution rate characterizes the degree of pollution impact of the pollution source on the water body of the monitoring station.

[0019] Based on the pollution source contribution rate, the pollutant source-sink relationship information is generated.

[0020] According to a method for analyzing the migration process of pollutants in aquatic environments provided by the present invention, the step of obtaining pollutant migration path information includes:

[0021] Acquire time-series information of artificial DNA tracers at different detection points. The time-series information of artificial DNA tracers includes DNA sequence identifiers and concentration time-series changes. The DNA sequence identifiers correspond to the pollution sources.

[0022] By comparing the time-series information of the artificial DNA tracer at different detection points, and based on the concentration time-series changes identified by the DNA sequence, the corresponding pollutant distribution trend information is obtained;

[0023] Based on the map location information of the detection points and the pollutant distribution change trend information, the pollutant migration path information is generated.

[0024] According to the present invention, a method for analyzing the migration process of pollutants in aquatic environments is provided, wherein the migration simulation model includes a surface water flow model and a solute transport model; the step of inputting the pollutant composition information and the pollutant migration path information into the migration simulation model to obtain pollutant migration and transformation simulation information includes:

[0025] The pollutant migration path information is input into the surface water flow model to obtain simulated flow information;

[0026] The simulated flow information and the pollutant composition information are input into the solute transport model to obtain the pollutant migration and transformation simulation information.

[0027] The surface water flow model is used to simulate changes in water flow, and the solute transport model is used to simulate the migration of solutes in the water.

[0028] According to a method for analyzing the migration process of pollutants in aquatic environments provided by the present invention, before inputting the simulated flow information and the pollutant composition information into the solute transport model to obtain the simulated pollutant migration and transformation information, the method further includes:

[0029] Obtain information on water environmental conditions;

[0030] Based on the water environment conditions information and the pollutant composition information, potential transformation information is obtained, which characterizes the potential physical and chemical changes of pollutants under environmental conditions;

[0031] Based on the potential transformation information, adjust the parameters of the solute transport model or the source and sink terms of the governing equations.

[0032] According to a method for analyzing the migration process of pollutants in aquatic environments provided by the present invention, after inputting the simulated flow information and the pollutant composition information into the solute transport model to obtain the simulated pollutant migration and transformation information, the method further includes:

[0033] Obtain actual water body sampling information;

[0034] Error information is obtained based on the actual water body sampling information and the pollutant migration and transformation simulation information;

[0035] The parameters of the surface water flow model and the parameters of the solute transport model are adjusted based on the error information.

[0036] According to the present invention, a method for analyzing the migration process of pollutants in aquatic environments, wherein obtaining pollution source distribution information and water body distribution information based on the remote sensing information includes:

[0037] Obtain land use information;

[0038] Based on the remote sensing information and the land use information, agricultural pollution sources, domestic pollution sources and industrial pollution sources are identified, and the pollution source distribution information is generated.

[0039] Based on the remote sensing information, each body of water is identified, and the direction of water flow is obtained based on the terrain and the connectivity between the various bodies of water.

[0040] The water body distribution information is generated based on the water area and the direction of water flow.

[0041] According to the present invention, a method for analyzing the migration process of pollutants in aquatic environments, after generating pollutant migration process information based on the pollutant source-sink relationship information, the pollutant migration path information, and the pollutant migration and transformation simulation information, further includes:

[0042] Based on the pollutant migration process information, a source-sink relationship diagram, a pollutant migration path diagram, and a pollutant simulated distribution diagram are generated.

[0043] And / or, based on the pollutant migration process information of each pollution source, pollution area information is generated, wherein the pollution area information characterizes the range of the pollution risk area and the corresponding pollution level.

[0044] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a method for analyzing the migration process of water pollutants as described above.

[0045] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for analyzing the migration process of water pollutants as described above.

[0046] This invention provides a method, device, and storage medium for analyzing the migration process of pollutants in the aquatic environment, which has at least the following beneficial effects: Based on remote sensing information of the analysis area, pollution source distribution information and water body distribution information are identified and obtained from the remote sensing images. The pollution source distribution information can determine the source of pollutants. Obtaining pollutant composition information from each pollution source can determine the type and composition of pollutants. Combining this with water composition information from monitoring stations (which reflects the composition of substances in the water at the monitoring station), comparative analysis can reveal whether the water at the monitoring station is polluted, the degree of pollution, and the corresponding pollution source, thereby obtaining pollutant source-sink relationship information, reflecting the correlation between the source and sink of pollutants. Artificial DNA tracers are released at the pollution sources, i.e., the sources of pollutants. Then, based on the water body distribution information, artificial DNA tracers are collected at different downstream detection points to obtain pollutant migration path information, reflecting the migration path of pollutants in the aquatic environment. Simultaneously, the artificial DNA tracers can individually identify a large number of pollution sources, facilitating the differentiation of migration paths of different pollutants and improving the accuracy of pollutant migration path analysis. By inputting pollutant composition information and migration pathways into a migration simulation model, the transformations that occur during pollutant migration in the aquatic environment are simulated, such as physical changes like pollutant concentration and chemical changes like oxidation, thus obtaining pollutant migration and transformation simulation information. Integrating pollutant source-sink relationship information, pollutant migration pathway information, and pollutant migration and transformation simulation information generates pollutant migration process information, which can characterize the "source-path-transformation-collection" process of pollutants in the aquatic environment, i.e., the complete migration process. This allows for a complete depiction of the pollutant migration process, providing a data foundation for subsequent water pollution control and the development of control measures. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0048] Figure 1 This is one of the flowcharts of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0049] Figure 2 This is the second flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0050] Figure 3 This is the third flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0051] Figure 4 This is the fourth flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0052] Figure 5 This is the fifth flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0053] Figure 6 This is the sixth flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0054] Figure 7 This is the seventh flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0055] Figure 8 This is the eighth flowchart of a method for analyzing the migration process of pollutants in the water environment provided by the present invention;

[0056] Figure 9 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0058] The following is combined Figures 1-8 A method for analyzing the migration process of pollutants in aquatic environments according to the present invention includes:

[0059] S100: Acquire remote sensing information of the analysis area;

[0060] S110: Based on the remote sensing information, obtain pollution source distribution information and water body distribution information;

[0061] S120: Based on the pollution source distribution information, obtain the pollutant composition information of each pollution source;

[0062] S130: Obtain water composition information for each monitoring station in the analysis area;

[0063] S140: Based on the pollutant composition information and the water composition information, obtain pollutant source-sink relationship information, wherein the pollutant source-sink relationship information characterizes the correlation between the source and the sink of pollutants;

[0064] S200: Obtain pollutant migration path information, which is obtained by releasing artificial DNA tracers of different sequences into the pollution source according to the pollution source distribution information and then collecting the artificial DNA tracers at different detection points according to the water body distribution information.

[0065] S300: Input the pollutant composition information and the pollutant migration path information into the migration simulation processing model to obtain pollutant migration and transformation simulation information, which characterizes the transformation of pollutants during the migration process;

[0066] S400: Based on the pollutant source-sink relationship information, the pollutant migration path information, and the pollutant migration and transformation simulation information, pollutant migration process information is generated, which characterizes the source, path, transformation, and destination of pollutant migration.

[0067] This analysis examines the relationship between the "source" and "sink" of pollutants. Based on remote sensing information of the analyzed area, pollution source distribution and water body distribution information are identified from the remote sensing images. The pollution source distribution information determines the source of the pollutants. Obtaining pollutant composition information from each source identifies the type and composition of the pollutants. Combining this with water composition information from monitoring stations (which reflects the composition of substances in the water at each station), comparative analysis reveals whether the water at the monitoring station is polluted, the degree of pollution, and the corresponding pollution source. This allows for the acquisition of pollutant source-sink relationship information, reflecting the correlation between the source and sink of pollutants.

[0068] For analyzing the "migration" pathways of pollutants, artificial DNA tracers are released at the pollution source, i.e., the origin of the pollutants. Then, based on water body distribution information, artificial DNA tracers are collected at different downstream monitoring points to obtain pollutant migration pathway information, reflecting the migration path of pollutants in the aquatic environment. Simultaneously, the method of identifying pollutants based on DNA sequences using artificial DNA tracers allows for the one-to-one identification of a vast number of pollution sources, addressing situations with numerous pollution sources. By distinguishing different pollutants through differences in DNA sequences, and thus differentiating their migration pathways, it is possible to accurately identify pollutant migration pathways even when they intersect, improving the accuracy of pollutant migration pathway analysis.

[0069] For the analysis of pollutant "transformation", pollutant composition information and migration pathways are input into a migration simulation model to simulate the transformations that occur during the migration of pollutants in the aquatic environment, such as physical changes like pollutant concentration and chemical changes like oxidation, thereby obtaining pollutant migration and transformation simulation information.

[0070] By integrating information on pollutant source-sink relationships, pollutant migration pathways, and pollutant migration and transformation simulations, pollutant migration process information can be generated. This information can characterize the "source-path-transformation-collection" process of pollutants in the aquatic environment, i.e., the complete migration process. This comprehensive depiction of the pollutant migration process provides a data foundation for subsequent water pollution control and the development of control measures.

[0071] It is important to emphasize that tracers generally have the drawback of not being able to distinguish each other. That is, when tracers are used to release tracers at two or more pollution sources at the same time, there is interference from the mixed tracers, which makes it impossible to accurately identify the migration path of individual pollution sources. It is necessary to release and detect each pollution source one by one, which means that only the migration path of one pollution source can be determined at a time, resulting in low efficiency.

[0072] This invention uses artificial DNA tracers, leveraging the characteristics of DNA sequences to accurately distinguish between them. Furthermore, based on the diversity of DNA sequences, different DNA sequence markers can be used to identify a vast number of pollution sources. Simultaneously, artificial DNA tracers are released at multiple pollution sources, and the tracers are obtained at downstream detection points. Based on the DNA sequence markers, the corresponding pollution sources can be clearly identified, allowing for the differentiation of multiple pollutants. This enables the simultaneous detection of the migration paths of multiple pollution sources, significantly improving detection and analysis efficiency.

[0073] It is understandable that the analysis area refers to the region where water pollutant migration analysis needs to be conducted. Remote sensing information refers to surface feature information acquired through remote sensing technology, which may include remote sensing images and corresponding latitude and longitude coordinates. Remote sensing images include topography, water bodies, vegetation, and built-up areas, from which the distribution of agricultural, residential, and industrial areas can be identified to determine the distribution information of pollution sources. At the same time, water body distribution information such as water areas, river networks, and water flow direction can also be identified from these images.

[0074] In some embodiments of the present invention, when obtaining pollution source distribution information based on remote sensing information, land use information and industrial layout information of the analysis area can be obtained, and the remote sensing information can be combined for identification and analysis to obtain pollution source distribution information more accurately.

[0075] In some embodiments of the present invention, in the process of obtaining pollutant composition information of each pollution source based on the pollution source distribution information, the location of the pollution source may be determined based on the pollution source distribution information, and then sampling may be carried out at the location of the pollution source to obtain liquid or solid samples, such as water samples, soil samples, fertilizer samples, solid waste samples, etc. The collected samples are then analyzed to obtain pollutant composition information.

[0076] In some embodiments of the present invention, the location of the pollution source can be determined based on the pollution source distribution information, and the corresponding pollutant component information can be obtained from the pollutant information database, which stores pollutant information corresponding to each location on the map and is formed by summarizing historical sampling and analysis data.

[0077] refer to Figure 2 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, step S140 includes:

[0078] S141: Based on the pollutant composition information, determine the first water chemical index, the first isotope information, and the first water quality fluorescent fingerprint;

[0079] S142: Based on the water composition information, determine the second chemical index, the second isotope information, and the second water quality fluorescent fingerprint;

[0080] S143: Based on factor analysis, the first water chemical index, the first isotope information, the first water quality fluorescence fingerprint, the second chemical index, the second isotope information, and the second water quality fluorescence fingerprint are analyzed to obtain the pollution source contribution rate, which characterizes the degree of pollution impact of the pollution source on the water body of the monitoring station.

[0081] S144: Generate the pollutant source-sink relationship information based on the pollution source contribution rate.

[0082] Factor analysis was used to compare and analyze the first water chemical index, first isotope information, and first water quality fluorescence fingerprint at the pollution source with the second water chemical index, second isotope information, and second water quality fluorescence fingerprint at the monitoring station. This analysis was used to determine the main components of pollutants that affect the monitoring station. The content of the main components of pollutants was then analyzed to obtain the pollution source contribution rate, characterize the degree of pollution impact of the pollution source on the water body at the monitoring station, and generate pollutant source-sink relationship information.

[0083] The first and second water chemistry indicators can include characteristics such as pH value, dissolved oxygen content, conductivity, and heavy metal content. The first and second isotope information can include stable isotopes, such as nitrate isotopes, sulfate isotopes, lead isotopes, chromium isotopes, and other stable metal isotopes. Water quality fluorescence fingerprints refer to the fluorescence spectra of specific organic substances in water bodies, which can serve as characteristic fingerprints of organic matter in water bodies, facilitating the analysis of the sources of organic pollutants in water.

[0084] By comprehensively analyzing water chemical indicators, isotope information, and water quality fluorescence fingerprints from multiple dimensions, the correlation between the sources and accumulation sites of pollutants can be identified more accurately and quantitatively.

[0085] Factor analysis methods can include factor analysis, principal component analysis, orthogonal matrix factorization, absolute factor analysis-multiple linear regression, etc. In some embodiments of this invention, based on the absolute factor analysis-multiple linear regression model, the principal components obtained in principal component analysis are transformed into absolute principal component scores, and then multiple linear regression is performed on the pollutant content in the water body at the monitoring station. The contribution rate of pollution sources is calculated using the regression coefficients.

[0086] In the process of factor analysis, the correlation between pollution sources and accumulation sites can be quantitatively analyzed by combining multiple linear mixed models such as the Iso Source model, SIAR model, and APCS-MLR model.

[0087] It is understandable that the water body at a monitoring station may be affected by pollution from multiple sources. The above method can obtain the pollution contribution rate of each pollution source, thereby determining the correlation between a single pollution source and the collection point of the monitoring station. That is, the pollutant source-sink relationship information corresponds to the pollution source, which clarifies the causal relationship of the pollution and is conducive to subsequent targeted treatment to achieve the expected improvement effect.

[0088] refer to Figure 3 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, step S200 includes:

[0089] S210: Obtain the time-series information of artificial DNA tracers at different detection points, wherein the time-series information of artificial DNA tracers includes DNA sequence identifiers and concentration time-series changes, and the DNA sequence identifiers correspond to the pollution source;

[0090] S220: Compare the time-series information of the artificial DNA tracer at different detection points, and obtain the corresponding pollutant distribution trend information based on the concentration time-series changes identified by the DNA sequence.

[0091] S230: Generate the pollutant migration path information based on the map location information of the detection points and the pollutant distribution change trend information.

[0092] Based on pollution source distribution information, artificial DNA tracers are released into the water bodies corresponding to each pollution source. Each DNA sequence corresponds one-to-one with a pollution source, meaning the corresponding pollution source can be identified based on the DNA sequence. Based on the water body distribution information, samples are periodically collected at different monitoring points downstream of the pollution sources. The presence of artificial DNA tracers in the sampling results generates temporal information about the artificial DNA tracers. By obtaining this temporal information, the presence of artificial DNA tracers in the water at each monitoring point determines whether the water body at that point is contaminated by pollutants. Furthermore, the corresponding pollution source can be identified based on the DNA sequence. The temporal changes in artificial DNA tracer concentrations at different monitoring points reveal the trend of pollutant distribution, i.e., the trend of pollutant transport with water flow. Combined with the map location information of the monitoring points, the path of the artificial DNA tracer distribution on the map can be obtained, i.e., the pollutant migration path information. Thus, by using the temporal change information of artificial DNA tracers from multiple monitoring points, the pollutant migration path can be determined without the need for detailed comparative analysis of water composition, simplifying the analysis process and improving efficiency.

[0093] In some embodiments of the present invention, the artificial DNA tracer may be a PLGA-encapsulated DNA tracer, a silica-encapsulated DNA tracer, etc. The base sequence combination in the DNA serves as a DNA sequence identifier. At the detection point, the concentration, base sequence, and other information of the artificial DNA tracer can be obtained through PCR (polymerase chain reaction), qPCR, and other technologies.

[0094] In some embodiments of the present invention, GIS (Geographic Information System) technology may be used to draw the migration path of pollutants based on the map location of the detection points.

[0095] It is understandable that the water body at a single testing point may be affected by multiple pollution sources. This means that at a single testing point, multiple time-series information of artificial DNA tracers corresponding to different DNA sequences may be obtained, thereby obtaining information on the migration paths of pollutants corresponding to different pollution sources.

[0096] In some embodiments of the present invention, the time-series information of artificial DNA tracers at each detection point may be combined with the location information of the detection points to form an artificial DNA tracer time-series database. During actual analysis, the location information of the detection points corresponding to the pollution sources is determined based on the pollution source distribution information and hydrological distribution information. Then, based on the detection point location information, the artificial DNA tracer time-series information is obtained from the artificial DNA tracer time-series database for analysis.

[0097] Monitoring stations can be facilities that conduct long-term monitoring of water bodies at fixed locations. Detection points, on the other hand, can be established after the release of artificial DNA tracers from pollution sources. Based on water distribution information and water flow direction analysis, the locations of specific detection points can be determined, and water samples can be periodically collected and analyzed to obtain the time-series information of the artificial DNA tracers.

[0098] refer to Figure 4 In some embodiments of the water environment pollutant migration process analysis method of the present invention, the migration simulation processing model includes a surface water flow model and a solute transport model; S300 includes:

[0099] S310: Input the pollutant migration path information into the surface water flow model to obtain simulated flow information;

[0100] S320: Input the simulated flow information and the pollutant composition information into the solute transport model to obtain the pollutant migration and transformation simulation information;

[0101] The surface water flow model is used to simulate changes in water flow, and the solute transport model is used to simulate the migration of solutes in the water.

[0102] Because pollutants undergo physical and chemical transformations during migration, such as concentration changes and oxidation, they are constantly changing. Understanding these transformations allows for a more complete understanding of the pollutant migration process. Inputting pollutant migration path information into a surface water flow model simulates the flow of pollutants along their migration path. Inputting simulated flow information and pollutant composition information into a solute transport model simulates the changes of solutes in the water. By combining surface water flow models and solute transport models, the effects of water flow velocity, water exchange, and sedimentation on pollutants can be simulated. This allows for the simulation of pollutant migration and transformation processes in water, providing a comprehensive understanding of the pollutant transformation process.

[0103] Surface water flow models can be SWAT, STEM-NPS, etc., and solute transport models can be MT3DMS, etc.

[0104] refer to Figure 5 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, before step S320, the method further includes:

[0105] S317: Obtain information on water environment conditions;

[0106] S318: Based on the water environment conditions information and the pollutant composition information, obtain potential transformation information, wherein the potential transformation information characterizes the potential physical and chemical changes of pollutants under environmental conditions;

[0107] S318: Adjust the parameters of the solute transport model or the source and sink terms of the governing equation based on the potential transformation information.

[0108] Before using a solute transport model, based on aquatic environmental conditions such as pH, temperature, and dissolved oxygen levels, and combined with pollutant composition information, the potential physical and chemical changes of pollutants, such as sedimentation and oxidation, are determined, generating potential transformation information. Since different pollutants may undergo different physical and chemical changes, adjusting the parameters or source and sink terms of the solute transport model based on this potential transformation information can more accurately simulate the pollutant transformation process and improve the accuracy of pollutant migration and transformation simulation information.

[0109] In some embodiments of the present invention, water environment condition information can be obtained from water composition information at monitoring stations.

[0110] refer to Figure 6 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, after S320, the method further includes:

[0111] S330: Obtain actual water body sampling information;

[0112] S340: Obtain error information based on the actual water body sampling information and the pollutant migration and transformation simulation information;

[0113] S350: Adjust the parameters of the surface water flow model and the parameters of the solute transport model based on the error information.

[0114] After using a solute transport model to simulate the transformation process of pollutants and obtaining simulated information on pollutant migration and transformation, the simulation information is compared with the actual water body sampling information obtained from actual sampling. Error information is then used to optimize and adjust the parameters of the surface water flow model and the solute transport model, which is beneficial for more accurate subsequent simulations of pollutant transformation.

[0115] Actual water sampling information can be obtained from the water composition information of the monitoring stations.

[0116] refer to Figure 7 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, step S110 includes:

[0117] S111: Based on the remote sensing information, identify agricultural pollution sources, domestic pollution sources, and industrial pollution sources, and generate the pollution source distribution information;

[0118] S112: Based on the remote sensing information, identify each body of water and obtain the direction of water flow based on the terrain and the connectivity between the body of water;

[0119] S113: Generate the water body distribution information based on the water area and the direction of water flow.

[0120] Acquiring land use information, including land division information and industrial zone layout information, enables the identification of different types of land areas, such as agricultural areas, residential areas, and industrial areas. This information is then combined with remote sensing images to identify agricultural, residential, and industrial pollution sources based on image features, generating pollution source distribution information. Simultaneously, rivers, lakes, and other body of water are identified from remote sensing images, and water flow direction is determined through topography and connectivity, generating water body distribution information.

[0121] refer to Figure 8 In some embodiments of the method for analyzing the migration process of pollutants in the water environment according to the present invention, after S400, the method further includes:

[0122] S510: Based on the pollutant migration process information, generate a source-sink relationship diagram, a pollutant migration path diagram, and a pollutant simulated distribution diagram;

[0123] And / or, S520: Generate pollution area information based on the pollutant migration process information of each pollution source, wherein the pollution area information characterizes the range of the pollution risk area and the corresponding pollution level.

[0124] After obtaining information on pollutant migration processes, the complete migration process of different pollutants from "source to path to transformation to accumulation" can be determined, generating source-sink relationship maps representing pollutant sources and accumulation sites, pollutant migration path maps representing pollutant migration paths, and simulated pollutant distribution maps representing the locations of pollutant transformation and distribution. In this way, information on pollutant migration processes can be intuitively obtained through visualization, facilitating a rapid understanding and mastery of pollutant conditions.

[0125] After obtaining information on the migration process of pollutants, it is possible to identify areas with high concentrations of pollutants based on the migration process of different pollutants. This leads to the generation of pollution area information that characterizes the range of pollution-risk areas and the corresponding pollution levels. This is beneficial for understanding the pollution situation in each area, facilitating the discovery of potential pollution areas, and enabling targeted treatment of areas with high pollution levels, thereby improving the efficiency of water pollution control.

[0126] Figure 9 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 9As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840. The processor 810, communication interface 820, and memory 830 communicate with each other via the communication bus 840. The processor 810 can call logical instructions stored in the memory 830 to execute the aforementioned method for analyzing the migration process of pollutants in the water environment.

[0127] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0128] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform a method for analyzing the migration process of pollutants in the water environment provided by the methods described above.

[0129] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0130] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for analyzing the migration process of pollutants in the water environment, characterized in that, include: Acquire remote sensing information of the analysis area; Based on the remote sensing information, information on the distribution of pollution sources and water bodies is obtained; Based on the pollution source distribution information, obtain the pollutant composition information of each pollution source; Obtain water composition information from each monitoring station in the analysis area; Based on the pollutant composition information and the water composition information, pollutant source-sink relationship information is obtained, which characterizes the correlation between the source and sink of pollutants. The pollutant migration path information is obtained by releasing artificial DNA tracers of different sequences into the pollution source according to the pollution source distribution information, and then collecting the artificial DNA tracers at different detection points according to the water body distribution information. The pollutant composition information and the pollutant migration path information are input into the migration simulation processing model to obtain pollutant migration and transformation simulation information, which characterizes the transformation of pollutants during the migration process. Based on the pollutant source-sink relationship information, the pollutant migration path information, and the pollutant migration and transformation simulation information, pollutant migration process information is generated, which characterizes the source, path, transformation, and destination of pollutant migration. The step of obtaining pollutant source-sink relationship information based on the pollutant composition information and the water composition information includes: Based on the pollutant composition information, the first water chemical index, the first isotope information, and the first water quality fluorescent fingerprint are determined; Based on the water composition information, a second chemical index, a second isotope information, and a second water quality fluorescent fingerprint are determined; Based on factor analysis, the first water chemical index, the first isotope information, the first water quality fluorescence fingerprint, the second chemical index, the second isotope information, and the second water quality fluorescence fingerprint are analyzed to obtain the pollution source contribution rate. The pollution source contribution rate characterizes the degree of pollution impact of the pollution source on the water body of the monitoring station. Based on the pollution source contribution rate, the pollutant source-sink relationship information is generated; The migration simulation processing model includes a surface water flow model and a solute transport model; the step of inputting the pollutant composition information and the pollutant migration path information into the migration simulation processing model to obtain pollutant migration and transformation simulation information includes: The pollutant migration path information is input into the surface water flow model to obtain simulated flow information; The simulated flow information and the pollutant composition information are input into the solute transport model to obtain the pollutant migration and transformation simulation information. The surface water flow model is used to simulate changes in water flow, and the solute transport model is used to simulate the migration of solutes in the water.

2. The method for analyzing the migration process of pollutants in aquatic environments according to claim 1, characterized in that, The acquisition of pollutant migration path information includes: Acquire time-series information of artificial DNA tracers at different detection points. The time-series information of artificial DNA tracers includes DNA sequence identifiers and concentration time-series changes. The DNA sequence identifiers correspond to the pollution sources. By comparing the time-series information of the artificial DNA tracer at different detection points, and based on the concentration time-series changes identified by the DNA sequence, the corresponding pollutant distribution trend information is obtained; Based on the map location information of the detection points and the pollutant distribution change trend information, the pollutant migration path information is generated.

3. The method for analyzing the migration process of pollutants in aquatic environments according to claim 1, characterized in that, Before inputting the simulated flow information and the pollutant composition information into the solute transport model to obtain the pollutant migration and transformation simulation information, the method further includes: Obtain information on water environmental conditions; Based on the water environment conditions information and the pollutant composition information, potential transformation information is obtained, which characterizes the potential physical and chemical changes of pollutants under environmental conditions; Based on the potential transformation information, adjust the parameters of the solute transport model or the source and sink terms of the governing equations.

4. The method for analyzing the migration process of pollutants in aquatic environments according to claim 1, characterized in that, After inputting the simulated flow information and the pollutant composition information into the solute transport model to obtain the pollutant migration and transformation simulation information, the method further includes: Obtain actual water body sampling information; Error information is obtained based on the actual water body sampling information and the pollutant migration and transformation simulation information; The parameters of the surface water flow model and the parameters of the solute transport model are adjusted based on the error information.

5. The method for analyzing the migration process of pollutants in aquatic environments according to claim 1, characterized in that, The step of obtaining pollution source distribution information and water body distribution information based on the remote sensing information includes: Obtain land use information; Based on the remote sensing information and the land use information, agricultural pollution sources, domestic pollution sources and industrial pollution sources are identified, and the pollution source distribution information is generated. Based on the remote sensing information, each body of water is identified, and the direction of water flow is obtained based on the terrain and the connectivity between the various bodies of water. The water body distribution information is generated based on the water area and the direction of water flow.

6. The method for analyzing the migration process of pollutants in aquatic environments according to claim 1, characterized in that, After generating pollutant migration process information based on the pollutant source-sink relationship information, the pollutant migration path information, and the pollutant migration and transformation simulation information, the method further includes: Based on the pollutant migration process information, a source-sink relationship diagram, a pollutant migration path diagram, and a pollutant simulated distribution diagram are generated. And / or, based on the pollutant migration process information of each pollution source, pollution area information is generated, wherein the pollution area information characterizes the range of the pollution risk area and the corresponding pollution level.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method for analyzing the migration process of water pollutants as described in any one of claims 1 to 6.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method for analyzing the migration process of water pollutants as described in any one of claims 1 to 6.

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