Hydrogeological environment comprehensive evaluation method

Abstract

The invention discloses a hydrogeological environment comprehensive evaluation method, and relates to the technical field of hydrogeological environment evaluation.The hydrogeological environment comprehensive evaluation method comprises the first step of data acquisition, the second step of hydrogeological environment comprehensive analysis and the third step of optimization adjusting.According to the hydrogeological environment comprehensive evaluation method, water quality testing is conducted on a target area, and then hydrological information is obtained; the geological information of the target area and the pollutant information of the target factory are monitored and collected, a data basis is provided for subsequent environment analysis, and then the environment of the target area is analyzed according to the hydrological information and the geological information; and the influence of the target factory on the target area is analyzed by integrating the environment of the target area and the pollutant information of the target factory, the accuracy and completeness of the environment assessment method are improved to a great extent through multi-dimensional comprehensive analysis, and finally a scheme is formulated to optimize the ecological environment of the target area and manage the target factory.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogeological environment assessment, and in particular to a method for comprehensive hydrogeological environment assessment. Background Art

[0002] Prior art, such as the invention application patent with announcement number: CN117192640A, discloses a method for comprehensive hydrogeological survey of underground reservoirs. It includes: S1, geomorphological survey, S2, hydrogeological survey, S3, water quality analysis, S4, regional assessment of underground reservoirs, S5, data integration and analysis, and S6, assessment and decision-making; the present invention uses geological survey equipment to conduct topographic survey and geological and geomorphological analysis to determine surface characteristics and geological structures, and establishes a groundwater flow model to simulate the flow path and speed of groundwater by combining isotope data and hydrogeological information; combines the isotope analysis results with groundwater flow and geological conditions to provide detailed explanations and reports on water sources and flow paths, establishes a water quality model based on water quality data, and analyzes water quality distribution and change trends; assesses whether groundwater meets the standards for drinking water or industrial water; compiles a water quality report, and summarizes groundwater reserves at different water levels to obtain an estimated value of total groundwater resources.

[0003] With respect to the above scheme, there are the following technical problems: 1. The existing technology mainly analyzes groundwater, without considering the comprehensive analysis of surface water and recycled water. In addition, the current technology mainly analyzes water quality from aspects such as the pH value, electrical conductivity, dissolved oxygen and dissolved solids of the current groundwater, without analyzing the sources of substances that affect the water quality. This makes the analysis dimension relatively single, and it is difficult to ensure the completeness and accuracy of the analysis results, and it is impossible to establish targeted measures to protect groundwater resources.

[0004] 2. The existing technology mainly analyzes hydrogeology, but lacks analysis of factors affecting hydrogeology, and thus cannot make timely adjustments. At the same time, there is a lack of analysis of subsequent optimization plans after the hydrogeological analysis is completed. The lack of reasonable optimization plans will affect human production and life, and is also not conducive to the restoration of the ecological environment. Summary of the invention

[0005] The purpose of this application is to provide a comprehensive assessment method for hydrogeological environment, which solves the problems existing in the background technology.

[0006] In order to solve the above technical problems, the present application adopts the following technical solutions: The present application provides a comprehensive hydrogeological environment assessment method, including: Step 1, data collection: Conduct water quality testing on the target area, and then analyze and obtain the hydrological information of the target area, while obtaining the geological information of the target area from the geological center, and monitoring the pollutant information of the target factory.

[0007] Step 2: Comprehensive analysis of the hydrogeological environment: Conduct a comprehensive analysis of the hydrogeological environment of the target area based on the hydrological information and geological information, and then analyze the impact of the target factory on the target area based on the hydrogeological environment of the target area and the pollutant information of the target factory.

[0008] Step 3: Optimization and adjustment: Develop a plan to optimize the environment based on the impact of the target factory on the target area.

[0009] Preferably, the water quality test is carried out on the target area, and the specific testing process is as follows: S1, taking the target factory as the center of the circle, selecting the minimum distance between the target factory and each adjacent factory as the radius, constructing the area where the target factory is located, recorded as the target area, dividing the target area into different sub-areas in a grid shape, recorded as each sub-area; sampling the water resources in each sub-area, collecting the samples with a sterile sampling bottle and marking each sampling bottle with information, and the marked information includes the sampling area number, time and water resource type.

[0010] S2. After the collection is completed, each sampling bottle is immediately transported to the laboratory, and the laboratory environment is set to be constant. After pre-treating each water sample, the type and content of organic matter in each water sample is measured by gas chromatography, and after pre-treating each water sample, the type and content of organic matter in each water sample is measured by biochemical oxygen demand determination method, and the type and content of heavy metal ions are measured by spectral absorption method. Finally, the type and content of bacteria in each water sample is measured by plate counting method, and the above measurement results are recorded. Based on the measurement results, the water quality assessment coefficient of each water sample is analyzed, and the test is terminated after the analysis is completed.

[0011] Preferably, the hydrological information includes the available area of ​​water resources in the target area; the geological information includes the vegetation coverage area, lake and river area, and building and bare land area; the pollutant information includes the type and content of each organic matter, the type and content of each heavy metal ion, and the type and content of each bacteria.

[0012] Preferably, the analysis obtains the hydrological information of the target area, and the specific analysis process is as follows: the pollution index of each water sample is compared with the set pollution index threshold of the water sample. When the pollution index of a water sample is greater than or equal to the set pollution index threshold of the water sample, the water sample is recorded as a polluted water sample, otherwise the water sample is recorded as an unpolluted water sample, thereby obtaining each polluted water sample and each unpolluted water sample.

[0013] Based on the sampling bottle number of each uncontaminated water sample, the corresponding sub-area is extracted and recorded as each uncontaminated sub-area. The area of ​​each uncontaminated sub-area is added together to obtain the area of ​​the uncontaminated area in the target area, which is recorded as the available water resource area.

[0014] Preferably, the impact of the target factory on the target area is analyzed based on the hydrogeological environment of the target area and the pollutant information of the target factory. The specific analysis process is as follows: based on the overlap between the pollutants of the target factory and the pollutants in the hydrogeology of the target area, the pollution impact assessment coefficient of the target factory on the target area is analyzed, and the pollution impact assessment coefficient is substituted into the pollution assessment model to obtain the pollution characteristic value of the target factory on the target area. The pollution characteristic value includes data of -1, 0 and 1. When the pollution characteristic value is -1, the target factory has no impact on the environment of the target area, and the target factory is recorded as a qualified factory; when the pollution characteristic value is 0, the target factory produces moderate pollution to the environment of the target area, and the target factory is recorded as a second-level unqualified factory; when the pollution characteristic value is 1, the target factory produces severe pollution to the target area, and the target factory is recorded as a first-level unqualified factory.

[0015] Preferably, a plan is formulated for ecological optimization based on the impact of the target factory on the target area. The specific process is as follows: the first-level unqualified factories are shut down for rectification, and the vegetation coverage area, lake and wetland area, and the ratio of building to bare land area in the target area are adjusted during the shutdown period, and the water resources in the target area are purified through water pollution remediation technology until the environment in the target area is qualified.

[0016] For the second-level unqualified factories, anti-seepage materials are used to build wastewater pools and solid waste storage pools. Targeted wastewater purification is carried out according to the wastewater type of the target factory, and solid waste is classified and managed. At the same time, water pollution remediation technology is used to purify water resources in the target area.

[0017] The beneficial effects of the present application are: 1. A comprehensive hydrogeological environment assessment method provided by the present application obtains hydrological information by conducting water quality tests on the target area, and monitors and collects geological information of the target area and pollutant information of the target factory, thereby providing a data basis for subsequent environmental analysis. The environment of the target area is then analyzed based on the hydrological information and geological information, and the impact of the target factory on the target area is analyzed by comprehensively analyzing the environment of the target area and the pollutant information of the target factory. The multi-dimensional comprehensive analysis greatly improves the accuracy and completeness of the environmental assessment method, and finally a plan is formulated to optimize the ecological environment of the target area and to manage the target factory.

[0018] 2. This application obtains the hydrological information of the target area by conducting water quality tests on the target area, and at the same time collects the geological information of the target area and the pollutant information of the target factory, providing a data basis for the subsequent comprehensive analysis of the hydrogeological environment and the pollution analysis of the target factory on the target area.

[0019] 3. This application conducts a comprehensive analysis of the environment of the target area through hydrological information and geological information, and then conducts a comprehensive analysis of the environment of the target area and the pollutant information of the target factory, so as to obtain the environmental impact of the target factory on the target area. The production of the factory will not only produce a large amount of wastewater, but the solid waste it produces will also affect the geology of the target area, thereby destroying the vegetation and wetland distribution. The multi-dimensional analysis ensures the accuracy and completeness of the environmental assessment. When the pollutants in the target area have a high degree of overlap with the pollutants generated by the target factory, it means that the environmental pollution in the target area is caused by the target factory. This analysis process avoids the randomness of the pollution analysis results and greatly improves the completeness of the comprehensive hydrogeological environment assessment method.

[0020] 4. This application formulates an ecological environment optimization plan based on the impact of the target factory on the target area to repair the ecosystem of the target area, avoid the continuous deterioration of the hydrogeology in the target area caused by factory production, and thus avoid the personal and property safety of residents caused by the continuous deterioration of hydrogeology. It is also conducive to the sustainable development of the target factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The figure is a flowchart of the implementation steps of the present application method. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Reference Figure 1 As shown, the present application provides a comprehensive hydrogeological environment assessment method, including the following steps: Step 1, data collection: conduct water quality testing on the target area, and then analyze and obtain the hydrological information of the target area, while obtaining the geological information of the target area from the geological center, and monitoring the pollutant information of the target factory.

[0025] In a specific example, the water quality test is conducted on the target area, and the specific testing process is as follows: S1. Taking the target factory as the center of the circle, the minimum distance between the target factory and the adjacent factories is selected as the radius, and the area where the target factory is located is constructed, recorded as the target area, and the target area is divided into different sub-areas in a grid shape, recorded as each sub-area; water resources in each sub-area are sampled, and samples are collected using sterile sampling bottles and each sampling bottle is marked with information, and the marked information includes the sampling area number, time and water resource type.

[0026] S2. After the collection is completed, each sampling bottle is immediately transported to the laboratory, and the laboratory environment is set to be constant. After pre-treating each water sample, the type and content of organic matter in each water sample is measured by gas chromatography, and after pre-treating each water sample, the type and content of organic matter in each water sample is measured by biochemical oxygen demand determination method, and the type and content of heavy metal ions are measured by spectral absorption method. Finally, the type and content of bacteria in each water sample is measured by plate counting method, and the above measurement results are recorded. Based on the measurement results, the water quality assessment coefficient of each water sample is analyzed, and the test is terminated after the analysis is completed.

[0027] It should be noted that water resource types include surface water, groundwater and recycled water.

[0028] It should be noted that setting the laboratory environment constant includes setting the temperature and humidity constant, for example, setting the laboratory temperature to 22° C. and the humidity to 50 RH.

[0029] It should be noted that the pretreatment of each water sample includes filtration, digestion, pH adjustment and volume determination.

[0030] In a specific example, the hydrological information includes the available area of ​​water resources in the target area; the geological information includes the vegetation coverage area, lake and river area, and building and bare land area; the pollutant information includes the type and content of each organic matter, the type and content of each heavy metal ion, and the type and content of each bacteria.

[0031] It should be noted that the hydrological information, geological information and pollutant information are the total amount of information measured within a preset period. The length of the period is set by the staff, such as one week, half a month or one month.

[0032] In a specific example, the water quality assessment coefficient of each water sample is obtained by the analysis. The specific analysis process is as follows: the organic matter content, heavy metal ion content and bacterial content in each water sample are recorded as , and ,in is the number of each sampling bottle, , is any integer greater than 2, Number each pollutant component. , is any integer greater than 2, according to the calculation formula: Get the pollution index of each water sample ,in is the total number of pollutant components, , and They are respectively expressed as the standard values ​​of organic matter content, heavy metal ion content and bacterial content in water samples. , and They are respectively expressed as the weight factor corresponding to the organic matter content in the water sample, the weight factor corresponding to the heavy metal ion content, and the weight factor corresponding to the bacterial content.

[0033] It should be noted that the various pollutants include various organic substances, various heavy metal ions and various bacteria, such as polychlorinated biphenyls, lead, mercury and Escherichia coli.

[0034] It should be noted that the standard values ​​of organic matter content, heavy metal ion content and bacterial content in water samples are the maximum allowable contents of organic matter, heavy metal ions and bacteria stipulated by the World Health Organization, such as 20 ng / L for polychlorinated biphenyls and 0.01 mg / L for lead.

[0035] It should be noted that , , , .

[0036] It should be noted that the weight factors corresponding to the organic matter content, the heavy metal ion content and the bacterial content in the water samples were obtained by factor analysis. First, the information of the spatial path attenuation of the organic matter content, heavy metal ion content and bacterial content in each water sample was condensed, and then the variance explanation rate after rotation was obtained, and the weight was obtained by dividing the cumulative variance explanation rate.

[0037] It should be noted that factor analysis is a well-known technology. It is a multivariate statistical analysis method that starts from studying the internal dependencies of variables and reduces some variables with intricate relationships to a few comprehensive factors; information concentration is expressed as calculating the median; the variance explanation rate is the amount of information extracted by the factor, and the variance explanation rate = characteristic root / total number of analysis items; the variance explanation rate after rotation is expressed as the variance explanation rate of the factor after maximum variance rotation.

[0038] In a specific example, the analysis obtains the hydrological information of the target area, and the specific analysis process is as follows: the pollution index of each water sample is compared with the set pollution index threshold of the water sample. When the pollution index of a water sample is greater than or equal to the set pollution index threshold of the water sample, the water sample is recorded as a polluted water sample, otherwise the water sample is recorded as an unpolluted water sample, thereby obtaining each polluted water sample and each unpolluted water sample.

[0039] Based on the sampling bottle number of each uncontaminated water sample, the corresponding sub-area is extracted and recorded as each uncontaminated sub-area. The area of ​​each uncontaminated sub-area is added together to obtain the area of ​​the uncontaminated area in the target area, which is recorded as the available water resource area.

[0040] It should be noted that the pollution index threshold of the water sample is set to the maximum pollution index of each historically detected water sample in the target area before the target factory is established.

[0041] Step 2: Comprehensive analysis of the hydrogeological environment: Conduct a comprehensive analysis of the hydrogeological environment of the target area based on the hydrological information and geological information, and then analyze the impact of the target factory on the target area based on the hydrogeological environment of the target area and the pollutant information of the target factory.

[0042] In a specific example, the hydrogeological environment of the target area is comprehensively analyzed based on the hydrological information and geological information. The specific analysis is as follows: based on the hydrological information of the target area, the available area of ​​water resources is extracted, and the hydrological index of the target area is obtained by analysis. .

[0043] Based on the geological information of the target area, the vegetation coverage area, lake and river area, building and bare land area are extracted, and the geological index of the target area is obtained through analysis. .

[0044] Comprehensive hydrological index and geological index of the target area, according to the calculation formula Analyze and obtain the environmental assessment index of the target area .

[0045] In a specific example, the analysis obtains the hydrological index and geological index of the target area. The specific analysis process is as follows: the water resource utilization area of ​​the target area and the total area of ​​the target area are recorded as and , according to the calculation formula Get the hydrological index of the target area .

[0046] The vegetation coverage area, lake and river area, and building and bare land area of ​​the target area are recorded as , and , according to the calculation formula: Analyze and obtain geological index of target area , , and They are respectively expressed as the weight factor corresponding to the vegetation coverage area in the region, the weight factor corresponding to the river and lake area, and the weight factor corresponding to the building and bare land area.

[0047] It should be noted that , , , ,in , and The setting method and , and The same, so no further description.

[0048] Step 3: Optimization and adjustment: Develop a plan to optimize the environment based on the impact of the target factory on the target area.

[0049] In a specific example, the impact of the target factory on the target area is analyzed based on the hydrogeological environment of the target area and the pollutant information of the target factory. The specific analysis process is as follows: based on the overlap between the pollutants of the target factory and the pollutants in the hydrogeology of the target area, the pollution impact assessment coefficient of the target factory on the target area is analyzed, and the pollution impact assessment coefficient is substituted into the pollution assessment model to obtain the pollution characteristic value of the target factory on the target area. The pollution characteristic value includes data of -1, 0 and 1. When the pollution characteristic value is -1, the target factory has no impact on the environment of the target area, and the target factory is recorded as a qualified factory; when the pollution characteristic value is 0, the target factory produces moderate pollution to the environment of the target area, and the target factory is recorded as a second-level unqualified factory; when the pollution characteristic value is 1, the target factory produces severe pollution to the target area, and the target factory is recorded as a first-level unqualified factory.

[0050] It should be noted that the higher the overlap of pollution components in the keyword set, the greater the impact of the target environment on the pollution of the target factory.

[0051] It should be noted that the pollution assessment model expression is: ,in represents the pollution characteristic value of the target factory to the target area, Represents the lower limit of the pollution impact assessment coefficient, Indicates the upper limit of the pollution impact assessment coefficient.

[0052] It should be noted that the lower limit of the pollution impact assessment coefficient is the maximum value of the pollution impact assessment coefficient of the target area before the target factory is established, and the upper limit of the pollution impact assessment coefficient is the average value of the pollution assessment coefficients of water samples in the sub-area with the highest pollution index in each historical detection.

[0053] In a specific example, the analysis obtains the pollution impact assessment coefficient of the target factory on the target area. The specific analysis process is as follows: based on the pollutant information of the target factory, the gaseous pollutants, heavy metal pollutants and various organic types, heavy metal ion types and bacterial types in the solid waste of the target factory are extracted, and the organic keyword set of the target factory is constructed respectively. , Heavy metal pollution keyword set and bacterial contamination keyword set .

[0054] Based on the pollutant information of the target plant, the total organic content, total heavy metal ion content and total bacterial content of the target plant are extracted. The total content of acidic substances, total heavy metal ions and total bacteria are added to obtain the total pollutant content of the target plant. The total organic content of the target plant is divided by the total pollutant content to obtain the influencing factor of organic pollution of the target plant. Similarly, the influencing factors of heavy metal pollution in the target factory are analyzed Factors affecting bacterial contamination .

[0055] Based on the water quality test results of the target area, the types of organic pollutants, heavy metal ions and bacteria in the polluted sub-areas are extracted, and the organic pollution keyword sets of the water resources in the target area are constructed respectively. , Heavy metal pollution keyword set Collection and bacterial contamination keyword collection .

[0056] According to the calculation formula Analyze and obtain the pollution impact assessment coefficient of the target factory on the target area .

[0057] In a specific example, a plan is formulated for ecological optimization based on the impact of the target factory on the target area. The specific process is as follows: the first-level unqualified factories are shut down for rectification, and the vegetation coverage area, lake and wetland area, and the ratio of building to bare land in the target area are adjusted during the shutdown period. The water resources in the target area are purified through water pollution remediation technology until the environment in the target area is qualified.

[0058] For the second-level unqualified factories, anti-seepage materials are used to build wastewater pools and solid waste storage pools. Targeted wastewater purification is carried out according to the wastewater type of the target factory, and solid waste is classified and managed. At the same time, water pollution remediation technology is used to purify water resources in the target area.

[0059] It should be noted that adjusting the vegetation coverage area, lake and wetland area, and the ratio of building to bare land area in the target area can effectively promote the recovery and balance of the ecosystem.

[0060] It should be noted that water pollution remediation technologies include physical remediation, chemical remediation and biological remediation. Physical remediation includes physical adsorption, filtration and membrane separation; chemical remediation includes chemical oxidation and acid-base neutralization; biological remediation includes microbial remediation and aquatic biological remediation.

[0061] It should be noted that the anti-seepage materials include high-density polyethylene anti-seepage membranes, polyvinyl chloride anti-seepage materials, and the like.

[0062] It should be noted that the use of anti-seepage materials can effectively prevent pollutants in wastewater and solid waste from contaminating groundwater.

[0063] It should be noted that targeted wastewater purification is carried out according to the wastewater type of the target factory. For example, in pharmaceutical wastewater, aerobic microorganisms in the activated sludge process decompose organic pollutants such as antibiotics in the wastewater, thereby reducing the chemical oxygen demand and biochemical oxygen demand of the wastewater.

[0064] The present application provides a method for comprehensive assessment of the hydrogeological environment. The method acquires hydrological information by conducting water quality tests on the target area, monitors and collects geological information of the target area and pollutant information of the target factory, and provides a data basis for subsequent environmental analysis. The environment of the target area is then analyzed based on the hydrological and geological information, and the impact of the target factory on the target area is analyzed by comprehensively analyzing the environment of the target area and the pollutant information of the target factory. The multi-dimensional comprehensive analysis greatly improves the accuracy and completeness of the environmental assessment method. Finally, a plan is formulated to optimize the ecological environment of the target area and to manage the target factory.

[0065] The above contents are merely examples and explanations of the concept of the present application. The technicians in this technical field may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in the present application, they should all fall within the protection scope of the present application.

Claims

1. A method for comprehensive assessment of hydrogeological environment, characterized in that: include: Step 1: Data collection: Conduct water quality tests on the target area, and then analyze and obtain the hydrological information of the target area. At the same time, obtain the geological information of the target area from the geological center, and monitor the pollutant information of the target factory; Step 2: Comprehensive analysis of the hydrogeological environment: Conduct a comprehensive analysis of the hydrogeological environment of the target area based on the hydrological information and geological information, and then analyze the impact of the target factory on the target area based on the hydrogeological environment of the target area and the pollutant information of the target factory; Step 3: Optimization and adjustment: Develop a plan to optimize the environment based on the impact of the target factory on the target area.

2. A method for comprehensive assessment of hydrogeological environment according to claim 1, characterized in that: The water quality test is carried out in the target area, and the specific test process is as follows: S1. Taking the target factory as the center of the circle, the minimum distance between the target factory and the adjacent factories is selected as the radius to construct the area where the target factory is located, which is recorded as the target area. The target area is divided into different sub-areas in a grid shape, which are recorded as sub-areas. Water resources in each sub-area are sampled, and sterile sampling bottles are used to collect samples and each sampling bottle is marked with information, and the marked information includes the sampling area number, time and water resource type; S2. After the collection is completed, each sampling bottle is immediately transported to the laboratory, and the laboratory environment is set to be constant. After pre-treating each water sample, the type and content of organic matter in each water sample is measured by gas chromatography, and after pre-treating each water sample, the type and content of organic matter in each water sample is measured by biochemical oxygen demand determination method, and the type and content of heavy metal ions are measured by spectral absorption method. Finally, the type and content of bacteria in each water sample is measured by plate counting method, and the above measurement results are recorded. Based on the measurement results, the water quality assessment coefficient of each water sample is analyzed, and the test is terminated after the analysis is completed.

3. A method for comprehensive assessment of hydrogeological environment according to claim 2, characterized in that: The hydrological information includes the available area of ​​water resources in the target area; the geological information includes the vegetation coverage area, the area of ​​lakes and rivers, and the area of ​​buildings and bare land; the pollutant information includes the types and contents of various organic matter, the types and contents of various heavy metal ions, and the types and contents of various bacteria.

4. A method for comprehensive assessment of hydrogeological environment according to claim 3, characterized in that: The water quality assessment coefficient of each water sample was obtained by analysis. The specific analysis process is as follows: The organic matter content, heavy metal ion content and bacterial content in each water sample were recorded as , and ,in is the number of each sampling bottle, , is any integer greater than 2, Number each pollutant component. , is any integer greater than 2, according to the calculation formula: Get the pollution index of each water sample ,in is the total number of pollutant components, , and They are respectively expressed as the standard values ​​of organic matter content, heavy metal ion content and bacterial content in water samples. , and They are respectively expressed as the weight factor corresponding to the organic matter content in the water sample, the weight factor corresponding to the heavy metal ion content, and the weight factor corresponding to the bacterial content.

5. A method for comprehensive assessment of hydrogeological environment according to claim 4, characterized in that: The analysis obtains the hydrological information of the target area, and the specific analysis process is as follows: The pollution index of each water sample is compared with the set pollution index threshold of the water sample. When the pollution index of a water sample is greater than or equal to the set pollution index threshold of the water sample, the water sample is recorded as a polluted water sample, otherwise the water sample is recorded as an unpolluted water sample, thereby obtaining each polluted water sample and each unpolluted water sample; Based on the sampling bottle number of each uncontaminated water sample, the corresponding sub-area is extracted and recorded as each uncontaminated sub-area. The area of ​​each uncontaminated sub-area is added together to obtain the area of ​​the uncontaminated area in the target area, which is recorded as the available water resource area.

6. A method for comprehensive assessment of hydrogeological environment according to claim 5, characterized in that: The hydrogeological environment of the target area is comprehensively analyzed based on the hydrological information and geological information. The specific analysis is as follows: Based on the hydrological information of the target area, the available water resource area is extracted and the hydrological index of the target area is obtained through analysis. ; Based on the geological information of the target area, the vegetation coverage area, lake and river area, building and bare land area are extracted, and the geological index of the target area is obtained through analysis. ; Comprehensive hydrological index and geological index of the target area, according to the calculation formula Analyze and obtain the environmental assessment index of the target area .

7. A method for comprehensive assessment of hydrogeological environment according to claim 6, characterized in that: The analysis obtains the hydrological index and geological index of the target area. The specific analysis process is as follows: The available water resource area of ​​the target area and the total area of ​​the target area are recorded as and , according to the calculation formula Get the hydrological index of the target area ; The vegetation coverage area, lake and river area, and building and bare land area of ​​the target area are recorded as , and , according to the calculation formula: Analyze and obtain geological index of target area , , and They are respectively expressed as the weight factor corresponding to the vegetation coverage area in the region, the weight factor corresponding to the river and lake area, and the weight factor corresponding to the building and bare land area.

8. A method for comprehensive assessment of hydrogeological environment according to claim 7, characterized in that: According to the hydrogeological environment of the target area and the pollutant information of the target factory, the impact of the target factory on the target area is analyzed. The specific analysis process is as follows: Based on the overlap between the pollutants of the target factory and the pollutants in the hydrogeology of the target area, the pollution impact assessment coefficient of the target factory on the target area is analyzed and substituted into the pollution assessment model to obtain the pollution characteristic value of the target factory on the target area. The pollution characteristic value contains data of -1, 0 and 1. When the pollution characteristic value is -1, the target factory has no impact on the environment of the target area, and the target factory is recorded as a qualified factory. When the pollution characteristic value is 0, the target factory produces moderate pollution to the environment of the target area, and the target factory is recorded as a second-level unqualified factory; When the pollution characteristic value is 1, the target factory causes severe pollution to the target area and is recorded as a first-level unqualified factory.

9. A method for comprehensive assessment of hydrogeological environment according to claim 8, characterized in that: The analysis obtains the pollution impact assessment coefficient of the target factory on the target area. The specific analysis process is as follows: Based on the pollutant information of the target factory, the gaseous pollutants, heavy metal pollutants and various organic types, heavy metal ion types and bacterial types in the solid waste of the target factory are extracted, and the organic keyword sets of the target factory are constructed respectively. , Heavy metal pollution keyword set and bacterial contamination keyword set ; Based on the pollutant information of the target plant, the total organic content, total heavy metal ion content and total bacterial content of the target plant are extracted. The total content of acidic substances, total heavy metal ions and total bacteria are added to obtain the total pollutant content of the target plant. The total organic content of the target plant is divided by the total pollutant content to obtain the influencing factor of organic pollution of the target plant. Similarly, the influencing factors of heavy metal pollution in the target factory are analyzed Factors affecting bacterial contamination ; Based on the water quality test results of the target area, the types of organic pollutants, heavy metal ions and bacteria in the polluted sub-areas are extracted, and the organic pollution keyword sets of the water resources in the target area are constructed respectively. , Heavy metal pollution keyword set Collection and bacterial contamination keyword collection ; According to the calculation formula Analyze and obtain the pollution impact assessment coefficient of the target factory on the target area .

10. A method for comprehensive assessment of hydrogeological environment according to claim 9, characterized in that: The ecological optimization is carried out by formulating a plan based on the impact of the target factory on the target area. The specific process is as follows: For the first-level unqualified factories, they will be shut down for rectification. During the shutdown period, the vegetation coverage area, lake and wetland area, and the ratio of building to bare land area in the target area will be adjusted, and the water resources in the target area will be purified through water pollution remediation technology until the environment in the target area is qualified; For the second-level unqualified factories, anti-seepage materials are used to build wastewater pools and solid waste storage pools. Targeted wastewater purification is carried out according to the wastewater type of the target factory, and solid waste is classified and managed. At the same time, water pollution remediation technology is used to purify water resources in the target area.

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