CN-116245444-B - Risk assessment method for sudden river basin water environment of hazardous chemical substance production enterprise

CN116245444BCN 116245444 BCN116245444 BCN 116245444BCN-116245444-B

Abstract

The invention discloses a risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise in the technical field of environmental risk monitoring, which comprises the steps of establishing a risk assessment system based on a network, acquiring enterprise hazardous chemical substance storage information in a unit area of an enterprise area and water environment information of the river basin of the enterprise through a basic information acquisition module, acquiring other enterprise information in the unit area of the enterprise area through an environment information acquisition module, establishing an environment leakage model through a model construction module, marking each assessment block in the environment leakage model by an environment risk assessment module based on a pre-planned running route, and judging the environment risk level of each assessment block in the environment leakage model again based on the river basin water environment information and other enterprises, so that the risk assessment system can provide a risk assessment analysis for a hazardous chemical substance transportation line, simulate the risk chemical substance leakage treatment, and facilitate the optimization of the hazardous chemical substance transportation line.

Inventors

ZHANG YAHUI
DU SHILIN
SHEN CHEN
WANG YIZHE

Assignees

中国环境科学研究院

Dates

Publication Date: 20260508
Application Date: 20230303

Claims (8)

1. A risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise is characterized by comprising the following steps, S1, establishing a network-based risk assessment system, and setting a basic information acquisition module in the risk assessment system, wherein the basic information acquisition module is used for acquiring enterprise dangerous chemical storage information in a unit area of an area where an enterprise is located and water environment information of a river basin where the enterprise is located, and the enterprise dangerous chemical storage information comprises dangerous chemical types and dangerous chemical storage quantity; S2, setting an environmental information acquisition module in the risk assessment system, wherein the environmental information acquisition module is used for acquiring other enterprise information in a unit area of an area where the enterprise is located, and the other enterprise information comprises enterprise distribution conditions and enterprise distribution quantity; S3, setting a model construction module and an information processing module in the risk assessment system, wherein the model construction module establishes an environment leakage model based on enterprise dangerous chemical storage information and watershed water environment information, respectively names the environment leakage models containing different dangerous chemicals as M1, M2, the environment leakage models are divided into a plurality of assessment blocks with consistent unit distances, and marks the assessment blocks containing watershed water environment information as A; The model construction module is used for acquiring the transportation location of the dangerous chemicals and the transportation types of the dangerous chemicals, guiding the transportation locations and the transportation types of the dangerous chemicals into the environment leakage model to obtain a pre-planned driving route, and marking an evaluation block containing the pre-planned driving route as L; the information processing module is used for carrying out data conversion on other enterprise information, importing the other enterprise information after the data conversion into an environment leakage model, and marking an evaluation block containing the other enterprise information as B; S4, setting an environmental risk level assessment module and a hidden danger early warning module in the risk assessment system, wherein the environmental risk level assessment module; S4.1, according to different transportation types of dangerous chemicals, obtaining corresponding Mn in a model building module, dividing a pre-planned driving route into a plurality of small sections, marking the small section-containing evaluation blocks as L1, L2, &..and Ln, calculating the interval distance C of the evaluation blocks with different Ln distances, comparing the interval distance C with set thresholds Y1 and Y2, wherein Y1 is smaller than Y2; S4.2, the environmental risk level evaluation module compares the green and yellow evaluation blocks with A and B; S4.2.1, if the green evaluation block is A, judging whether the A is located in the upstream or downstream of Ln according to the water flow direction of the watershed water environment information, and re-marking the green evaluation block based on the diffusion speed V1 and the water flow speed V2 of the dangerous chemical in water; s4.2.2, if the green evaluation block is B, re-marking the green evaluation block according to the enterprise type of B; S4.2.3, if the yellow evaluation block is A, judging whether the A is located in the upstream or downstream of Ln according to the water flow direction of the watershed water environment information, and re-marking the yellow evaluation block based on the diffusion speed V1 and the water flow speed V2 of the dangerous chemical in water; S4.2.4, if the yellow evaluation block is B, re-marking the yellow evaluation block according to the enterprise type of B; S4.3, a hidden danger early warning module counts the number of marks of all evaluation blocks in Mn based on the marks of all evaluation blocks in Mn, calculates the number D1 of red mark blocks and the number D2 of yellow mark blocks, takes the average value of all Mn added red mark blocks, takes the average value of all Mn added yellow mark blocks, takes the average value of all Mn added D1 and D2, compares the average value with a threshold Y4, and gives a warning based on the result.
2. The risk assessment method for the sudden river basin water environment of the hazardous chemical substance production enterprise according to claim 1, wherein the environment leakage model takes the unit area of the area where the enterprise is located as a basic framework.
3. The risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise according to claim 1, wherein in S4.1, if the interval distance C is greater than Y2, the environmental risk level of the assessment block is a safety level, and the corresponding assessment block in the environmental leakage model is temporarily marked as green; If the interval distance C is larger than Y1 and smaller than Y2, the environmental risk level of the evaluation block is a medium level, and the corresponding evaluation block in the environmental leakage model is temporarily marked as yellow; If the spacing distance C is smaller than Y1, the environmental risk level of the evaluation block is a dangerous level, and the corresponding evaluation block in the environmental leakage model is temporarily marked in red.
4. The method for risk assessment of sudden river basin water environment in a hazardous chemical substance production enterprise according to claim 1, wherein S4.2.1, if A is located on the upstream of Ln, based on the diffusion velocity V1 and the water flow velocity V2 of the hazardous chemical substance in water, if the diffusion velocity V1 is greater than the water flow velocity V2, within one minute, the hazardous chemical substance moving distance C1=60 (V1-V2) is adopted, if C1 is greater than or equal to C, the assessment block is marked red, if C1 is less than C, the hazardous chemical substance moving distance C2=C1-C is calculated, C2 is compared with a threshold Y3, if C2 is greater than or equal to the threshold Y3, the assessment block is marked yellow, if C2 is less than the threshold Y3, the assessment block is marked green, and if the water diffusion velocity V1 is less than or equal to the water flow velocity V2; If a is downstream of Ln, the critical element moving distance c3=60 (v1+v2) is adopted within one minute based on the diffusion velocity V1 and the water flow velocity V2 of the critical element in water, the evaluation block is marked red if C3 is greater than or equal to C, and the evaluation block is marked yellow if C1 is less than C.
5. The risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise according to claim 1, wherein in S4.2.2, if B is a large environmental risk enterprise, the assessment block is marked as a yellow yellowing point, and if B is a general environmental risk enterprise, the assessment block is marked as a green yellowing point.
6. The risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise according to claim 1, wherein S4.2.3, if A is located on the upstream of Ln, based on the diffusion speed V1 and the water flow speed V2 of the hazardous chemical substance in water, if the diffusion speed V1 is greater than the water flow speed V2, within one minute, the hazardous chemical substance moving distance C1=60 (V1-V2) is adopted, if C1 is greater than or equal to C, the assessment block is marked as red, if C1 is less than C, the hazardous chemical substance moving distance C2=C1-C is calculated, C2 is compared with a threshold Y3, if C2 is greater than or equal to the threshold Y3, the assessment block is marked as yellow and red, if C2 is less than the threshold Y3, the assessment block is marked as yellow, if the diffusion speed V1 is less than or equal to the water flow speed V2; If a is downstream of Ln, the critical element moving distance c3=60 (v1+v2) is adopted within one minute based on the diffusion velocity V1 and the water flow velocity V2 of the critical element in water, the evaluation block is marked as red if C3 is greater than or equal to C, and the evaluation block is marked as yellow plus red if C1 is less than C.
7. The risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise according to claim 1, wherein in S4.2.4, if B is a large environmental risk enterprise, the assessment block is marked as a red yellowing point, and if B is a general environmental risk enterprise, the assessment block is marked as a yellow yellowing point.
8. The risk assessment method for the sudden river basin water environment of the hazardous chemical substance production enterprise according to claim 1 is characterized in that S4.3, based on the number D1 of red mark blocks and the number D2 of yellow mark blocks, the total abnormal mark block number dn=D1+D2 is calculated, the average value D1 'of Mn added red mark blocks is taken, the average value D2' of Mn added yellow mark blocks is taken, the average value D Flat plate = (d1+d2+) dn)/n corresponding to each Mn is calculated, if D1 'is greater than or equal to D2', D Flat plate is greater than or equal to Y4, a first-level warning is sent out by a hidden danger warning module, D Flat plate is smaller than Y4, and a second-level warning is sent out by the hidden danger warning module; If D1 'is smaller than D2', D Flat plate is larger than or equal to Y4, the hidden danger early warning module sends out a secondary warning, D Flat plate is smaller than Y4, and the hidden danger early warning module sends out a tertiary warning.

Description

Risk assessment method for sudden river basin water environment of hazardous chemical substance production enterprise Technical Field The invention belongs to the technical field of environmental risk monitoring, and particularly relates to a risk assessment method for sudden river basin water environment of a hazardous chemical substance production enterprise. Background Hazardous chemicals, i.e. dangerous chemicals, are extremely toxic chemicals and other chemicals which have the properties of poisoning, corrosion, explosion, combustion supporting and the like and are harmful to human bodies, facilities and the environment. Along with the continuous development of China, the demands for dangerous chemicals are gradually increased, the production and transportation of the dangerous chemicals are more frequent, and the transportation risks of the dangerous chemicals are required to be analyzed in the transportation process due to the particularity of the dangerous chemicals, so that the accident rate and the degree of environmental hazard caused by accidents are reduced. For example, the patent with the publication number of CN109993400A discloses a method and a system for evaluating the ecological environment risk of road transportation of dangerous chemicals, which adopt an ecological environment sensitive receptor influence deduction method, take the ecological environment sensitive receptor as an evaluation basis, screen and grade an environment risk road section according to the influence degree of dangerous chemicals leakage on the environment sensitive receptor, identify a plurality of environment risk road sections according to the provided dangerous chemicals transportation route, and then evaluate the environment risk and grade the environment risk road section by road section to be used as an auxiliary decision basis for finally determining the scheme of the dangerous chemicals transportation route. However, the scheme is based on an ecological environment sensitive receptor as an evaluation basis, analysis is carried out according to the influence degree of hazardous chemical substance leakage on the environment sensitive receptor, influence of the surrounding environment on the hazardous chemical substances is ignored, certain deviation may exist in determination of a hazardous chemical substance transportation line scheme, and when the hazardous chemical substances are leaked, auxiliary decision cannot be provided for hazardous chemical substance leakage treatment, so that the harm degree of hazardous chemical substance leakage on the environment is reduced. Disclosure of Invention In order to solve the problems, the invention aims to provide a risk assessment method for a sudden river basin water environment of a hazardous chemical substance production enterprise, so that the risk assessment method can provide a risk assessment analysis for a hazardous chemical substance transportation line, can simulate hazardous chemical substance leakage treatment, and is convenient for optimizing the hazardous chemical substance transportation line. In order to achieve the above object, the technical scheme of the present invention is as follows: s1, establishing a network-based risk assessment system, and setting a basic information acquisition module in the risk assessment system, wherein the basic information acquisition module is used for acquiring enterprise dangerous chemical storage information in a unit area of an enterprise and water environment information of the river basin of the enterprise, and the enterprise dangerous chemical storage information comprises dangerous chemical types and dangerous chemical storage quantity; S2, setting an environmental information acquisition module in the risk assessment system, wherein the environmental information acquisition module is used for acquiring other enterprise information in a unit area of an area where the enterprise is located, and the other enterprise information comprises enterprise distribution conditions and enterprise distribution quantity; S3, setting a model construction module and an information processing module in the risk assessment system, wherein the model construction module establishes an environment leakage model based on enterprise dangerous chemical storage information and watershed water environment information, respectively names the environment leakage models containing different dangerous chemicals as M1, M2, the environment leakage models are divided into a plurality of assessment blocks with consistent unit distances, and marks the assessment blocks containing watershed water environment information as A; The model construction module is used for acquiring the transportation location of the dangerous chemicals and the transportation types of the dangerous chemicals, guiding the transportation locations and the transportation types of the dangerous chemicals into the environment leakage model to obtain a pre-planned drivin