CN114266404A - Chemical industry garden site pollution early warning system - Google Patents
Chemical industry garden site pollution early warning system Download PDFInfo
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Abstract
The invention discloses a chemical industry park site pollution early warning system, which comprises: the multi-scene monitoring system is used for acquiring monitoring values of the pollution conditions of the atmosphere, the soil and the water body; the decision-making system is used for receiving the monitoring values of the multi-scenario monitoring system and carrying out data processing to judge the pollution risk; a precision investigation system for sample analysis; determining a pollution range and carrying out a repairing emergency control and repair system according to a feedback result of the accurate survey system; the multi-scenario monitoring system is connected with the decision-making system and sends the acquired monitoring values of the atmospheric, soil and water pollution conditions to the decision-making system for processing; the accurate investigation system is connected with the decision-making system, when the decision-making system judges that the pollution risk exists, the accurate investigation system carries out sample analysis on the atmosphere, the soil and the water body with the pollution risk, and corresponding restoration treatment is carried out through the emergency control and restoration system after the pollution range is determined.
Description
Technical Field
The invention belongs to the field of environmental monitoring and early warning, and particularly relates to a chemical industry park site pollution early warning system.
Background
At present, an environment monitoring system of a chemical industry park is incomplete, and only a small amount of chemical industry parks with large scale preliminarily establish above-ground monitoring and early warning systems of surface water, atmosphere, pollution sources and the like, and the below-ground monitoring and early warning of soil, underground water, soil gas and the like is still in a bud state. In order to find pollution in time and effectively support field environment supervision of a park, a soil-water-gas synchronous three-dimensional monitoring system is constructed, and multi-medium pollution diffusion simulation and environmental quality change early warning are focused on at present.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the technical problem of the prior art and provides a system which can synchronously realize three-dimensional monitoring and alarm and forecast the environmental pollution problem in real time.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a chemical industry park site pollution early warning system includes:
the multi-scene monitoring system is used for acquiring monitoring values of the pollution conditions of the atmosphere, the soil and the water body;
the decision-making system is used for receiving the monitoring values of the multi-scenario monitoring system and carrying out data processing to judge the pollution risk;
a precision investigation system for sample analysis;
determining a pollution range and carrying out a repairing emergency control and repair system according to a feedback result of the accurate survey system;
the multi-scenario monitoring system is connected with the decision-making system and sends the acquired monitoring values of the atmospheric, soil and water pollution conditions to the decision-making system for processing; the accurate investigation system is connected with the decision-making system, when the decision-making system judges that the pollution risk exists, the accurate investigation system carries out sample analysis on the atmosphere, the soil and the water body with the pollution risk, and corresponding restoration treatment is carried out through the emergency control and restoration system after the pollution range is determined.
Specifically, the multi-scenario monitoring system comprises a normal production scenario monitoring system and an emergency scenario system;
the normal production scenario monitoring system includes: the system comprises an infrared auxiliary automatic monitoring station for monitoring the concentration of organic pollutants or partial heavy metals in the atmosphere of a chemical industrial park in real time, a water body monitoring system for monitoring the concentration of pollutants in a river water body and surface water in real time, and an intelligent well auxiliary monitoring system for monitoring the concentration of organic pollutants in underground water in real time;
the emergency scene system comprises an earth, water and gas emergency detection workstation.
Specifically, the decision system includes:
the data internet of things transmission and processing and risk 3D visualization module is used for realizing remote transmission, real-time processing and 3D visualization of pollution distribution of monitoring data of the multi-scenario monitoring system;
the risk decision module is used for carrying out risk decision according to the received monitoring data, judging the concentration distribution result of the pollutants and determining whether a risk exists;
and the high concern pollutant list database is accessed into the risk decision module and provides corresponding high concern chemical item lists and control target values of each chemical industry park for the risk decision module.
Specifically, the risk decision module performs the determination by adopting the following steps:
(1) establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
(2) establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
(3) establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVGAnd when the value exceeds the limit value of the quality standard of a certain single medium of atmospheric pollution, underground water pollution, surface water and soil or the carcinogenic risk value or the limit value of a certain concerned chemical in a high concerned pollutant list database of the chemical industry park, judging that the pollution risk exists and starting early warning.
Specifically, the accurate investigation system comprises a sampling and laboratory analysis and detection module, and is used for sampling and analyzing the atmosphere, soil or water body which is judged to have the pollution risk in the decision system.
Specifically, the emergency control and restoration system comprises a pollution range determination module, an accident emergency control module and a pollution risk management and control and restoration module;
the pollution range determining module is connected with the accurate investigation system and determines pollution point positions, pollution types and pollution sources according to the result of the accurate investigation system;
the accident emergency control module is connected with the multi-scenario monitoring system and used for receiving the data of sudden pollution monitored by the multi-scenario monitoring system;
the pollution risk management and control and restoration module is respectively connected with the pollution range determination module and the accident emergency control module, and a pollution restoration mode is determined according to the pollution range determination module and the accident emergency control module data.
Further, the invention also provides a method for early warning by the system, which comprises the following steps:
step 1: starting a monitoring system in a normal production scene mode, carrying out periodic fixed-point atmosphere real-time detection on a chemical industrial park by using an infrared auxiliary automatic monitoring station, and checking the atmospheric condition of potential or unexpected leakage points; the method comprises the steps of detecting the concentration of important concerned pollutants of surface water and water body sections and conventional parameters of EC and DO water in real time by using a water body monitoring system, and checking the pollutants generated by illegal discharge or leakage of wastewater;
establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
and (3): establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVGWhen the quality standard of air pollution, underground water pollution, surface water and soil exceeds the limit value of a certain single medium or the carcinogenic risk value or the limit value of a certain concerned chemical in a high concerned pollutant list database of the chemical industry park, judging that the pollution risk exists and starting early warning;
step 2: starting a decision-making system, receiving real-time detection data of a monitoring system under a normal production scene mode and an emergency scene by a real-time internet of things, performing three-dimensional visualization imaging and pollution risk judgment on the data, and providing an emergency scheme according to the characteristics and the pollution risk level of pollutants;
and step 3: when the decision system result shows that a risk exists, starting an accurate investigation system to sample and analyze and detect the area with the risk in a laboratory, determining the risk level and the pollution range, and managing, controlling and repairing the risk of the area exceeding the national standard;
and 4, step 4: when sudden chemical leakage, explosion and fire accidents occur or the decision system result is a sudden accident, starting a sudden emergency scene module, and applying a soil, water and gas emergency detection workstation to rapidly detect a polluted area and determine a pollution range, so that further diffusion of pollutants is prevented, and a pollution source is eliminated;
and 5: under the condition of an emergency accident, the accident emergency control is implemented to prevent the further diffusion of pollutants, and the soil and the underground water in the pollution range are repaired to reach the national standard.
Has the advantages that:
the invention discloses a real-time monitoring system for high-altitude, surface and underground multi-dimension and multi-medium real-time monitoring systems, which aims at normal production scenes and emergency scenes of a chemical industry park, combines an infrared cruise system for patrolling atmosphere, a water body monitoring system for real-time monitoring of water bodies such as surface water and an intelligent well monitoring system for real-time monitoring of underground water, forms a high-altitude, surface and underground multi-dimension and multi-medium real-time monitoring system for real-time monitoring of pollutant concentration, finds potential production hazards and guarantees safe production of the chemical industry park. When an emergency accident happens, the water, soil and gas emergency workstation is started to detect quickly, pollution plumes are judged quickly, a three-dimensional space distribution graph is formed, an effective decision scheme is provided for emergency disposal, and the emergency rapid disposal is realized. In a word, the multi-scene, multi-space-dimension and multi-medium three-dimensional monitoring system overcomes the defects of the traditional early warning system in soil and underground water, and meanwhile, the response efficiency and the emergency decision and disposal capacity under the emergency scene are improved through the application of the water, soil and gas emergency workstation, so that the overall improvement of the prevention capacity and the control capacity is realized.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
FIG. 1 is a composition diagram of a chemical industrial park site pollution early warning system of the present invention.
Fig. 2 shows the detection result of the infrared auxiliary automatic monitoring station.
FIG. 3 shows the results of pH measurements from the 16# well of a chemical park.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the chemical industry park site pollution early warning system of the invention comprises:
the multi-scenario monitoring system 1 is used for acquiring monitoring values of the pollution conditions of the atmosphere, the soil and the water body;
the decision-making system 2 is used for receiving the monitoring values of the multi-scene monitoring system 1 and carrying out data processing and judging the pollution risk;
a precision investigation system 3 for sample analysis;
and an emergency control and restoration system 4 for determining the pollution range and restoring according to the feedback result of the accurate survey system 3;
the multi-scenario monitoring system 1 is connected with the decision-making system 2, and sends the acquired monitoring values of the atmospheric, soil and water pollution conditions to the decision-making system 2 for processing; the accurate investigation system 3 is connected with the decision-making system 2, when the decision-making system 2 judges that the pollution risk exists, the accurate investigation system 3 carries out sample analysis on the atmosphere, soil and water body with the pollution risk, and carries out corresponding restoration treatment through the emergency control and restoration system 4 after the pollution range is determined.
The multiple scenario monitoring system 1 includes a normal production scenario monitoring system 101 and an emergency scenario system 102.
The normal production scenario monitoring system 101 includes: the system comprises an infrared auxiliary automatic monitoring station 1011 for monitoring the concentration of organic pollutants or partial heavy metals in the atmosphere of a chemical industrial park in real time, a water body monitoring system 1012 for monitoring the concentration of pollutants in river water and surface water in real time, and an intelligent well auxiliary monitoring system 1013 for monitoring the concentration of organic pollutants in soil and underground water in real time.
The emergency scenario system 102 includes an earth, water, gas emergency detection workstation 1021.
The decision system 2 includes:
and the data internet of things transmission and processing and risk 3D visualization module 201 is used for realizing the remote transmission, the real-time processing and the 3D visualization of pollution distribution of the monitoring data of the multi-scenario monitoring system 1.
And a risk decision module 202, configured to perform a risk decision according to the received monitoring data, that is, to determine whether a risk exists by determining a concentration distribution result of the pollutant.
And the high concern pollutant list database 203 is accessed into the risk decision module 202, and the high concern pollutant list database 203 provides corresponding high concern chemical item lists and control target values of each chemical industry park for the risk decision module.
The risk decision module 202 performs the determination by the following steps:
(1) establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
(2) establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
(3) establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVGAnd when the value exceeds the limit value of the quality standard of a certain single medium of atmospheric pollution, underground water pollution, surface water and soil or the carcinogenic risk value or the limit value of a certain concerned chemical in the high concerned pollutant list database 203 of the chemical industry park, judging that the pollution risk exists and starting early warning.
The accurate investigation system 3 comprises a sampling and laboratory analysis detection module 301, and is used for sampling and analyzing the atmosphere, soil or water body which is judged to have the pollution risk in the decision system 2.
The emergency control and remediation system 4 includes a pollution scope determination module 401, an accident emergency control module 402, and a pollution risk management and control and remediation module 403.
The pollution range determining module 401 is connected with the precise investigation system 3, and determines pollution point positions, pollution types and pollution sources according to the result of the precise investigation system 3;
the accident emergency control module 402 is connected to the multiple scenario monitoring system 1, and is configured to receive data of sudden pollution detected by the multiple scenario monitoring system 1.
The pollution risk management and control and repair module 403 is respectively connected with the pollution range determination module 401 and the accident emergency control module 402, and determines a pollution repair mode according to data of the pollution range determination module 401 and the accident emergency control module 402.
The method for early warning by adopting the system comprises the following steps:
step 1: starting a monitoring system in a normal production scene mode, carrying out periodic fixed-point atmosphere real-time detection on a chemical industrial park by using an infrared auxiliary automatic monitoring station, and checking the atmospheric condition of potential or unexpected leakage points; the method comprises the steps of detecting the concentration of important concerned pollutants of surface water and water body sections and conventional parameters of EC and DO water in real time by using a water body monitoring system, and checking the pollutants generated by illegal discharge or leakage of wastewater;
establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
and (3): establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVG：Cstd>>1 or CAVGWhen the comprehensive index of a certain medium or the carcinogenic risk value or the limit value of a certain concerned chemical in the high concerned pollutant list database 203 of the chemical industry park is exceeded, early warning is started;
step 2: starting a decision-making system, receiving real-time detection data of a monitoring system under a normal production scene mode and an emergency scene by a real-time internet of things, performing three-dimensional visualization imaging and pollution risk judgment on the data, and providing an emergency scheme according to the characteristics and the pollution risk level of pollutants;
and step 3: when the decision system result shows that a risk exists, starting an accurate investigation system to sample and analyze and detect the area with the risk in a laboratory, determining the risk level and the pollution range, and managing, controlling and repairing the risk of the area exceeding the national standard;
and 4, step 4: when sudden chemical leakage, explosion and fire accidents occur or the decision system result is a sudden accident, starting a sudden emergency scene module, and applying a soil, water and gas emergency detection workstation to rapidly detect a polluted area and determine a pollution range, so that further diffusion of pollutants is prevented, and a pollution source is eliminated;
and 5: under the condition of an emergency accident, the accident emergency control is implemented to prevent the further diffusion of pollutants, and the soil and the underground water in the pollution range are repaired to reach the national standard.
As shown in FIG. 2, in an infrared auxiliary automatic monitoring station 1011 of a certain chemical industry park, the atmospheric concentration and C of 1,2, 4-trimethylbenzene, epichlorohydrin and 1,2, 3-trichloropropane are detectedstdIf the number of the air pipes is more than 1, certain risk exists, the decision system provides the location of the overproof area, the abnormal point location is checked to carry out combined operation, and finally, leakage of a certain air pipe is determined, and soil and water are not affected.
As shown in figure 3, when the pH value of a 16# underground water well in a certain chemical industry park is increased to more than 10 at No. 15:21 at No. 8/2021, a decision-making system gives out early warning information, a park pollution investigation and decision-making treatment workstation is used for carrying out on-site rapid detection on the area and then sending the result to the fact that the area exists, after investigation, the situation that the peripheral area carries out a soil pollution remediation test by using sodium persulfate at 25/8/2021 is found, and NaOH is used for activating the oxidizing property of the sodium persulfate in the test process, so that the abnormality of the 16# intelligent monitoring well is caused.
The invention provides a thought and a method of a chemical industrial park site pollution early warning system, and a plurality of methods and ways for specifically implementing the technical scheme are provided, the above description is only a preferred embodiment of the invention, and it should be noted that, for a person skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the invention, and the improvements and decorations should also be regarded as the protection scope of the invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (7)
1. The utility model provides a chemical industry garden place pollutes early warning system which characterized in that includes:
the multi-scene monitoring system (1) is used for acquiring monitoring values of the pollution conditions of the atmosphere, the soil and the water body;
the decision-making system (2) is used for receiving the monitoring values of the multi-scenario monitoring system (1) and carrying out data processing to judge the pollution risk;
a precision investigation system (3) for sample analysis;
and an emergency control and repair system (4) for determining the pollution range and performing repair according to the feedback result of the accurate survey system (3);
the multi-scene monitoring system (1) is connected with the decision-making system (2) and sends the acquired monitoring values of the atmospheric, soil and water pollution conditions to the decision-making system (2) for processing; the accurate investigation system (3) is connected with the decision-making system (2), when the decision-making system (2) judges that the pollution risk exists, the accurate investigation system (3) carries out sample analysis on the atmosphere, soil and water body with the pollution risk, and corresponding restoration processing is carried out through the emergency control and restoration system (4) after the pollution range is determined.
2. The chemical industry park site pollution early warning system according to claim 1, wherein the multi-scenario monitoring system (1) comprises a normal production scenario monitoring system (101) and an emergency scenario system (102);
the normal production scenario monitoring system (101) comprises: the system comprises an infrared auxiliary automatic monitoring station (1011) for monitoring the concentration of organic pollutants or partial heavy metals in the atmosphere of a chemical industrial park in real time, a water body monitoring system (1012) for monitoring the concentration of pollutants in river water and surface water in real time, and an intelligent well auxiliary monitoring system (1013) for monitoring the concentration of organic pollutants in soil and underground water in real time;
the emergency scene system (102) comprises an earth, water and gas emergency detection workstation (1021).
3. The chemical industry park site pollution early warning system according to claim 1, wherein the decision system (2) comprises:
the data internet of things transmission and processing and risk 3D visualization module (201) is used for realizing remote transmission, real-time processing and 3D visualization of pollution distribution of monitoring data of the multi-scenario monitoring system (1);
the risk decision module (202) is used for carrying out risk decision according to the received monitoring data, judging the concentration distribution result of the pollutants and determining whether risks exist or not;
and the high concern pollutant list database (203) is accessed into the risk decision module (202), and the high concern pollutant list database (203) provides corresponding high concern chemical item lists and control target values of each chemical industry park for the risk decision module.
4. The chemical industry park site pollution early warning system according to claim 3, wherein the risk decision module (202) adopts the following steps to distinguish:
(1) establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
(2) establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
(3) establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVGAnd when the quality standard of air pollution, underground water pollution, surface water and soil single medium is exceeded or the limit value of a certain concerned chemical in a high concerned pollutant list database (203), judging that the pollution risk exists and starting early warning.
5. The chemical industry park site pollution early warning system according to claim 1, wherein the accurate survey system (3) comprises a sampling and laboratory analysis and detection module (301) for sampling and analyzing the atmosphere, soil or water body which is judged to have pollution risk in the decision system (2).
6. The chemical industry park site pollution early warning system according to claim 1, wherein the emergency control and remediation system (4) comprises a pollution range determination module (401), an accident emergency control module (402) and a pollution risk management and control and remediation module (403);
the pollution range determining module (401) is connected with the accurate investigation system (3), and determines pollution point positions, pollution types and pollution sources according to the result of the accurate investigation system (3);
the accident emergency control module (402) is connected with the multi-scenario monitoring system (1) and is used for receiving data of sudden pollution monitored by the multi-scenario monitoring system (1);
the pollution risk management and control and repair module (403) is respectively connected with the pollution range determination module (401) and the accident emergency control module (402), and a pollution repair mode is determined according to data of the pollution range determination module (401) and the accident emergency control module (402).
7. A method for performing an early warning using the system of claim 1, comprising the steps of:
step 1: starting a monitoring system in a normal production scene mode, carrying out periodic fixed-point atmosphere real-time detection on a chemical industrial park by using an infrared auxiliary automatic monitoring station, and checking the atmospheric condition of potential or unexpected leakage points; the method comprises the steps of detecting the concentration of important concerned pollutants of surface water and water body sections and conventional parameters of EC and DO water in real time by using a water body monitoring system, and checking the pollutants generated by illegal discharge or leakage of wastewater;
establishing monitoring values of atmosphere, soil, surface water and underground water in non-polluted areas of the chemical industry park in each month in the past year, and adopting the following average value algorithm as an environmental background value of the chemical industry park:
in the formula, CstdThe average concentration value of a certain pollution factor in a non-pollution period, C is the actual concentration value of the certain pollution factor in the non-pollution period, and n is a monitored month;
and (3): establishing prediction data, and performing synchronous updating according to newly acquired data, wherein the updating data is calculated as follows:
in the formula, CAVGIs the average concentration value of a certain contamination factor, C1Is a real-time measured value of the concentration of a certain pollution factor, C2The historical concentration value of a certain pollution factor is obtained, n is the monitored times, and m is the times to be monitored;
establishing a multi-medium risk assessment and control model, when CAVG：Cstd>1, and the numerical value shows an upward trend, or CAVGWhen the quality standard of air pollution, underground water pollution, surface water and soil exceeds the limit value of a certain single medium or the limit value of a certain concerned chemical in a high concerned pollutant list database (203) of the chemical industry park, judging that the pollution risk exists and starting early warning;
step 2: starting a decision-making system, receiving real-time detection data of a monitoring system under a normal production scene mode and an emergency scene by a real-time internet of things, performing three-dimensional visualization imaging and pollution risk judgment on the data, and providing an emergency scheme according to the characteristics and the pollution risk level of pollutants;
and step 3: when the decision system result shows that a risk exists, starting an accurate investigation system to sample and analyze and detect the area with the risk in a laboratory, determining the risk level and the pollution range, and managing, controlling and repairing the risk of the area exceeding the national standard;
and 4, step 4: when sudden chemical leakage, explosion and fire accidents occur or the decision system result is a sudden accident, starting a sudden emergency scene module, and applying a soil, water and gas emergency detection workstation to rapidly detect a polluted area and determine a pollution range, so that further diffusion of pollutants is prevented, and a pollution source is eliminated;
and 5: under the condition of an emergency accident, the accident emergency control is implemented to prevent the further diffusion of pollutants, and the soil and the underground water in the pollution range are repaired to reach the national standard.
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