Water pollution tracing method and system based on two-dimensional finite element method diffusion model

Abstract

The invention relates to a water pollution tracing method and system based on a two-dimensional finite element method diffusion model, belongs to the technical field of water pollution monitoring, andsolves the problems that an existing water pollution tracing method is high in detection requirement, low in efficiency and high in cost. The method comprises the following steps: acquiring river basic information, water flow quality information and sewage draining exit information of a river to be monitored, and establishing a three-dimensional model of the river to be monitored; in the three-dimensional model, carrying out pollutant diffusion simulation, obtaining the pollutant concentration gradient of each sewage draining exit, determining then the position of the monitoring point, and obtaining a pollutant concentration simulation value corresponding to each sewage draining exit at the monitoring point; acquiring a corresponding pollutant concentration value in the river to be monitored; and when the pollutant concentration value is greater than a preset value, performing correlation analysis on the pollutant concentration value and the pollutant concentration simulation value corresponding to each sewage draining exit to obtain a correlation coefficient, and further determining the sewage draining exit of the pollution source. The method is simple to operate and can be usedfor quickly tracing the source of water pollution.

Description

technical field [0001] The invention relates to the technical field of water pollution monitoring, in particular to a water pollution traceability method system based on a two-dimensional finite element method diffusion model. Background technique [0002] The water environment is related to the quality of life of residents and the ecological environment. The traceability of water pollution can not only find the source of pollution, but also assist in pollution remediation and management. As an important content of water environment research, the research on traceability of water pollution has practical significance for water environment safety. [0003] In the prior art, the common water pollution traceability methods include the forward tracing method and the inverse problem derivation method. The forward tracing method is mainly based on isotope or microorganism tracing, and has high requirements for the measurement and inspection of elements and microorganisms. The inve...

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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a water pollution traceability method and system based on a two-dimensional finite element method diffusion model to solve the problems of high measurement and inspection requirements, low efficiency, and high cost in existing water pollution traceability methods

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