Underground water environment monitoring and early warning method

Abstract

The invention relates to the technical field of geological survey, and discloses a groundwater environment monitoring and early warning method, which comprises the following steps of: coupling a real-time early warning module and a prediction early warning module, and constructing a groundwater environment monitoring and early warning model; according to the national standard, the underground water quality current situation and the real-time and prediction early warning result, an early warning level is delimited, and different colors are given to represent color block warning levels; according to a simulation result, judging an early warning line of the underground water specific pollutants, and if a relatively high early warning level is displayed, carrying out pollutant inversion; possible pollutants speculated by the pollutant inversion module are identified; an early warning decision is made for possible pollutant types and enterprise types; and after the sudden pollution event is effectively disposed, early warning feedback is timely carried out. According to the groundwater environment monitoring and early warning method, the groundwater quality real-time early warning grade and the distribution range of pollutants in the groundwater in different time periods in the future are determined, and a scientific basis is provided for reasonably developing and utilizing groundwater resources.

Description

Technical Field

[0001] The present invention relates to the technical field of geological survey, and particularly relates to a method for monitoring and warning the groundwater environment. Background Art

[0002] The occurrence process of groundwater pollution is concealed and not easy to detect, and the treatment is difficult and costly. Therefore, higher scientific and technological requirements are put forward for the monitoring, warning, prevention and control of the "dual-source" groundwater environment. Groundwater pollution warning is based on various factors affecting the quality of the groundwater environment, conducts qualitative and quantitative analysis, predicts the dynamic change trend and speed of groundwater, and determines warning information at different levels, providing a scientific basis for formulating relevant policies and measures for protecting and managing groundwater resources. At present, the research on the monitoring and warning of the "dual-source" groundwater environment in China is still in the preliminary stage. Most studies only analyze the harm caused by polluted groundwater resources to the human body, and there is insufficient understanding and investment in the work of monitoring and warning the groundwater environment. There is a lack of warning for groundwater pollution. In the face of sudden and long-term pollution events, it is difficult for relevant department personnel to respond. Summary of the Invention

[0003] To solve the above problems, the present invention provides a method for monitoring and warning the groundwater environment, which is characterized by including: Coupling the real-time warning module and the prediction warning module to construct a "dual-source" groundwater environment monitoring and warning model; Combining national standards, the current situation of groundwater quality, and the real-time and prediction warning results to delimit the warning level and assign warning levels with color blocks of different colors; According to the simulation results of the model, judge the warning threshold of characteristic pollutants in groundwater. If a higher warning level is displayed, start the pollutant inversion module; Identify the possible pollutants and the types of polluting enterprises inferred by the pollutant inversion module; After determining the types of possible pollutants, make a warning decision according to the warning level and the type of event; After an emergency pollution event is effectively disposed of, give a timely warning feedback.

[0004] Furthermore, the real-time warning module is used to realize the identification of abnormal points of groundwater information, probability trend warning and visualization. Specifically: The abnormal point identification is used to receive and process monitoring data in real time, quickly calculate the monthly moving average and standard deviation, and automatically judge abnormal points according to the way of adding and subtracting multiples of n standard deviations from the monthly moving average and based on the preset n value; The probability trend warning uses the probability distribution method and the coupling model method to determine the threshold and the threshold warning level; The visualization represents the warning level by using color blocks of different colors for warning.

[0005] Furthermore, the prediction and early warning module is used to screen out characteristic pollutants from typical industrial parks and centralized groundwater-type drinking water sources, use the characteristic pollutants as simulation factors of the numerical model, delimit the early warning levels in accordance with the national "Groundwater Quality Standard" (GB / T 14848-2017) combined with the current water quality status, and judge the early warning warning lines of the characteristic pollutants in the shallow groundwater based on the results of the model simulation.

[0006] Furthermore, the pollutant inversion includes inverting pollutants from automatic detection parameters and inverting polluting enterprises from pollutants, specifically: The inverting pollutants from automatic detection parameters is used to retrieve the associated database and pop up the indicated pollutant types. The inverting polluting enterprises from pollutants is used to prompt the types of polluting enterprises in the industrial agglomeration area according to the exceeded pollutants.

[0007] Furthermore, the early warning decision-making is used to verify the early warning information of the early warning results, report and release the early warning information in a timely manner, report the early warning information to relevant departments, immediately initiate emergency measures, and conduct graded responses according to the early warning levels, specifically: The early warning decision-making includes early warning response, expert consultation and measure suggestions; The early warning response includes monitoring and reporting and releasing early warning information, verifying early warning information, releasing early warning information and early warning response; The monitoring and reporting and releasing early warning information is used to delimit the early warning levels through the online monitoring and early warning platform to construct a real-time early warning module and a prediction and early warning module and report the early warning information; The verifying early warning information is used to make a preliminary determination of the nature and category of the event, judge relevant enterprises and pollution sources, conduct water sample tests at the early warning site, promptly organize early warning consultations, make a determination of the nature and category of the event according to the consultation results, and conduct research and judgment on the early warning levels to form consultation opinions; The releasing early warning information is used to release the early warning information to relevant publics in the administrative region through channels or methods such as television, radio, newspapers, the Internet, mobile phone text messages, mobile phone APPs, and in-person notifications, and notify relevant regions that may be affected; The early warning response is used to conduct graded responses according to the early warning levels.

[0008] Furthermore, the early warning feedback is used for pollution investigation and control, lifting of monitoring and early warning, and event investigation and information notification. After the sudden pollution event is effectively disposed of according to the groundwater monitoring information, the early warning level should be adjusted in a timely manner.

[0009] The groundwater environment monitoring and early warning method of the present invention realizes the water quality prediction of the "dual-source" groundwater environment by coupling the real-time early warning module and the prediction early warning module, constructs a "dual-source" groundwater environment monitoring and early warning model, warns of the dynamic changes in the groundwater quality based on the prediction results, and establishes a monitoring and early warning response mechanism. The groundwater environment monitoring and early warning method proposed by the present invention achieves the purposes of accurate water quality prediction of the "dual-source" groundwater environment, rapid identification of pollution sources, and efficient response to monitoring and early warning, provides a scientific basis for the management department to actively and effectively control the evolution direction of the groundwater environment, provides a management guideline for the treatment personnel to carry out pollution warning identification and treatment, and has broad application prospects. Description of the Drawings

[0010] Figure 1 It is a flowchart of a groundwater environment monitoring and early warning method according to an embodiment of the present invention.

[0011] Figure 2 It is a visualization monitoring chart of real-time coupling prediction and early warning for the groundwater environment provided by an embodiment of the present invention.

[0012] Figure 3 It is a map showing the area division of the early warning levels for each predicted year in the future in the National Chemical and Physical Power Source Industry Agglomeration Area of Henan Province according to an embodiment of the present invention.

[0013] Figure 4 It is a map showing the area division of the early warning levels in the groundwater environment monitoring and early warning platform of Henan Province according to an embodiment of the present invention.

[0014] Figure 5 It is a table for dividing the early warning levels of sulfate indexes according to the present invention.

[0015] Figure 6 It is the area of each early warning level region according to the present invention. Detailed Embodiment

[0016] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] As Figure 1 and Figure 2 shown, Figure 1 It is a schematic flowchart of an embodiment of a groundwater environment monitoring and early warning method provided by the present invention, as Figure 1 shown: Couple the real-time early warning module and the prediction early warning module to construct a "dual-source" groundwater environment monitoring and early warning model; Combine national standards, the current situation of groundwater quality, and the real-time and prediction early warning results to delimit the early warning levels and assign color-coded warning levels to different color blocks; According to the simulation results of the model, judge the early warning warning line of the characteristic pollutants in the groundwater. If a higher early warning level is displayed, start the pollutant inversion module; Identify the possible pollutants and types of polluting enterprises inferred by the pollutant inversion module; After determining the types of possible pollutants, make early warning decisions based on the early warning level and event type; After the sudden pollution incident is effectively disposed of, give early warning feedback in a timely manner.

[0018] In this embodiment, the real-time early warning module is used to identify abnormal points of groundwater information, probability trend early warning and visualization.

[0019] The abnormal point identification is used to receive and process the monitoring data in real time, quickly calculate the monthly moving average and standard deviation, and automatically judge the abnormal points in the way of adding and subtracting multiples of n standard deviations from the monthly moving average, and specifically, the selection of the n value needs to be based on the unique nature of the monitoring data, the complex and changeable environmental conditions in the monitoring area, and the actual requirements of the early warning system for sensitivity and specificity. It is flexibly adjusted, and its value is generally in the range of 1.5 to 2. In the case of frequent abnormal points leading to an increase in false alarms, appropriately increasing the n value can reduce false alarms and improve the overall efficiency of the early warning system.

[0020] The probability trend early warning uses the probability distribution method and the coupling model method to determine the threshold and the threshold early warning level; specifically, methods such as the frequency analysis method, the probability distribution method, the laboratory test method, the coupling model method, and the water quality standard method are used to jointly explore the correlation between the five automatic monitoring parameters (water level, water temperature, pH, conductivity, redox potential) and the monitoring indicators, find the indicator indicators that can represent the groundwater quality, and determine the threshold range of the automatic monitoring parameters based on the multi-method thresholds of the pollutants.

[0021] The visualization represents the early warning level by using color blocks of different colors for warning.

[0022] In this embodiment, the prediction and early warning module is used to screen out the characteristic pollutants from typical industrial parks and centralized groundwater-type drinking water source areas, use the characteristic pollutants as the simulation factors of the numerical model, delimit the early warning level according to the national "Groundwater Quality Standard" (GB / T 14848—2017) in combination with the current water quality situation, and determine the early warning warning line of the characteristic pollutants in the shallow groundwater based on the results of the model simulation.

[0023] Furthermore, the prediction and early warning module includes a hydrogeological conceptual model, a flow numerical model, and a solute numerical model.

[0024] In this embodiment, the color block warning is used to determine the early warning level through the probability trend early warning and set the color block warning.

[0025] In this embodiment, pollutant inversion includes automatically detecting parameter inversion of pollutants and pollutant inversion of polluting enterprises.

[0026] The automatically detecting parameter inversion of pollutants is used to retrieve the associated database and pop up the indicated pollutant types; specifically, when the automatic monitoring parameter prompts a warning, this module will automatically retrieve the associated database and pop up the indicated pollutant types.

[0027] The pollutant inversion of polluting enterprises is used to indicate the types of polluting enterprises in the industrial agglomeration area according to the excessive pollutants; specifically, by integrating a large number of investigation materials and literature materials, an associated database of most pollutant types and possible polluting enterprise types is constructed, and the types of polluting enterprises in the industrial agglomeration area are indicated according to the excessive pollutants.

[0028] In this embodiment, the early warning decision is used to verify the early warning information of the early warning result, report and release the early warning information in a timely manner, report the early warning information to relevant departments, immediately initiate emergency measures, and conduct graded responses according to the early warning levels. Specifically, the early warning decision includes early warning response, expert consultation and measure suggestions.

[0029] The early warning response includes monitoring and reporting and releasing of early warning information, verifying early warning information, releasing early warning information and early warning response.

[0030] The monitoring and reporting and releasing of early warning information is used to construct a real-time early warning module and a predictive early warning module through an online monitoring and early warning platform to delimit the early warning levels and report the early warning information.

[0031] The verifying of early warning information is used to make a preliminary determination of the nature and category of the event, judge relevant enterprises and pollution sources, conduct water sample tests at the early warning site, promptly organize early warning consultations, make a determination of the nature and category of the event according to the consultation results, and conduct research and judgment on the early warning levels to form consultation opinions.

[0032] The releasing of early warning information is used to release early warning information to relevant the public in this administrative region through channels or means such as television, radio, newspapers, the Internet, mobile phone text messages, mobile phone APPs, and in-person notifications, and notify relevant regions that may be affected.

[0033] The early warning response is used to conduct graded responses according to the early warning levels.

[0034] In this embodiment, the early warning feedback is used for pollution investigation and control, lifting of monitoring and early warning, and event investigation and information notification. According to the groundwater monitoring information, after a sudden pollution event is effectively disposed of, the early warning level should be adjusted in a timely manner.

[0035] Figure 2This is a visual monitoring map for real-time coupled prediction and early warning of groundwater environment monitoring provided by the embodiments of the present invention. The core of the present invention is prediction and early warning. According to the "dual-source" groundwater ecological environment quality monitoring network and the groundwater environment monitoring and early warning platform in Henan Province, the groundwater environment of a typical industrial park in the National Chemical and Physical Power Source Industry Agglomeration Area of Henan Province is selected for prediction.

[0036] The FEFLOW model is used to construct a numerical model of groundwater flow and a solute transport model. Taking characteristic pollutants as the simulation factors of the numerical model, the concentration distribution of solutes in groundwater is simulated and calculated. Combining with the "Groundwater Quality Standard" (GB / T 14848—2017), different concentrations of solutes are color-coded and labeled. The areas with excessive solute concentrations are labeled in red, the areas with relatively high solute concentrations are labeled in orange, the areas with relatively low solute concentrations are labeled in yellow, and the areas within the safe concentration range are labeled in green. See Figure 5 .

[0037] After simulation and calculation, pollution level range maps for half a year, 1 year, 3 years, 5 years, 10 years, and 20 years of solute diffusion are obtained, as shown in Figure 3 . The areas of each early warning level region are shown in Figure 6 . Among them, the early warning level is set to 4 levels, namely zero, first, second, and third-level early warnings, and the colors correspond to green, yellow, orange, and red respectively.

[0038] As can be seen from Figure 6 , the areas of the early warning levels are different for different prediction years in this industrial park, and the proportion of the areas with relatively low solute concentrations is the largest; the areas of the same early warning level increase continuously with the increase of the prediction years. Among them, the areas of the early warning levels in this region changed significantly in the third prediction year, and relevant departments need to take preventive measures and, if necessary, activate the monitoring and early warning response mechanism. Figure 3 Based on the prediction data in Table 2, it visually shows the areas of the early warning levels in this region for each future prediction year through visualization means. Figure 4 Figure [X] is the page for dividing the early warning levels during the prediction period of the client of the groundwater environment monitoring and early warning platform, which is convenient for relevant departments and technicians to make dynamic predictions.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A groundwater environment monitoring and early warning method, characterized in that: include: The real-time warning module is coupled with the prediction warning module to build a groundwater environment monitoring and warning model; The warning level is determined based on national standards, the current status of groundwater quality, and real-time and predicted warning results, and different color blocks are assigned warning levels; According to the simulation results of the model, the early warning line of groundwater characteristic pollutants is determined. If a higher warning level is displayed, the pollutant inversion module is activated; Identify the possible pollutants and polluting enterprise types inferred by the pollutant inversion module; After determining the possible types of pollutants, make warning decisions based on the warning level and event type; After the sudden pollution incident is effectively handled, timely early warning feedback will be provided.

2. The groundwater environment monitoring and early warning method according to claim 1 is characterized in that: The real-time warning module is used to realize abnormal point identification, probability trend warning and visualization of groundwater information, specifically: The abnormal point identification is used to receive and process monitoring data in real time, quickly calculate the monthly sliding mean and standard deviation, and automatically determine the abnormal point according to the method of adding or subtracting n multiples of the standard deviation from the monthly sliding mean, and according to the preset n value; The probabilistic trend warning uses probability distribution method and coupling model method to determine thresholds and threshold warning levels; The visualization is to indicate the warning level by using color block warnings of different colors.

3. The groundwater environment monitoring and early warning method according to claim 1 is characterized in that: The prediction and early warning module is used to screen out characteristic pollutants from typical industrial parks and centralized groundwater drinking water sources. Taking characteristic pollutants as simulation factors of the numerical model, the warning level is determined according to the national "Groundwater Quality Standard" (GB / T 14848-2017) and the current water quality status. According to the results of model simulation, the warning line of characteristic pollutants in shallow groundwater is judged.

4. The groundwater environment monitoring and early warning method according to claim 1 is characterized in that: The pollutant inversion includes automatic detection parameter inversion of pollutants and pollutant inversion of pollutants, specifically: The automatic detection parameter inversion pollutant is used to call the associated database and pop up the indicated pollutant type; The pollutant inversion of polluting enterprises is used to indicate the types of enterprises that generate pollution in industrial clusters based on pollutants that exceed the standard.

5. The groundwater environment monitoring and early warning method according to claim 1 is characterized in that: The warning decision is used to verify the warning information of the warning results, report and release the warning information in a timely manner, report the warning information to the relevant departments, immediately initiate emergency measures, and respond in a graded manner according to the warning classification, specifically: The warning decision includes warning response, expert consultation and measures recommendations; The warning response includes monitoring and reporting and issuing of warning information, verifying warning information, issuing warning information and warning response; The monitoring and early warning information reporting and publishing is used to build a real-time early warning module and a prediction early warning module through an online monitoring and early warning platform to define the early warning level and report the early warning information; The verified warning information is used to make a preliminary determination of the nature and category of the incident, to judge the relevant enterprises and pollution sources, to test water samples at the warning site, to organize warning consultations in a timely manner, to determine the nature and category of the incident based on the consultation results, to study and judge the warning level, and to form consultation opinions; The warning information release is used to release warning information to the relevant public in the administrative region through channels or methods such as television, radio, newspapers, the Internet, mobile phone text messages, mobile phone apps, face-to-face notifications, etc., and to inform the relevant areas that may be affected; The early warning response is used to perform a graded response according to the early warning grade.

6. The groundwater environment monitoring and early warning method according to claim 1 is characterized in that: The early warning feedback is used for pollution investigation and control, monitoring and early warning release, incident investigation and information notification. According to the groundwater monitoring information, the early warning level should be adjusted in time after the sudden pollution incident is effectively dealt with.

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