Method for analyzing dynamic transferred water quality based on fugacity theory

Abstract

The invention disclose a method for analyzing dynamic transferred water quality based on a fugacity theory, relating to a water quality analysis method, and solving the problem of larger deviation between a simulated result and an actual condition caused by actually unobtainable required parameters and randomly non-modifiable inner parameters in a traditional water quality analysis method. The method comprises the following steps of: firstly, confirming environment facies of a water area to be detected and acquiring geographic information parameters of the water area to be detected, environmental parameters of various environment and materialization parameters of a target pollutant; then computing fugacity capacity of each environmental facies, speed constant of reaction dynamics and transfer parameters among each environmental face; then establishing a system of differential equation by taking the fugacity of each environmental face as an unknown and solving the system of differential equation through a Runge-Kutta algorithm to obtain the fugacity of each environmental face; and calculating out pollutant concentration by the fugacity of each environmental facies and the fugacity capacity. The invention overcomes defects of the prior art, and can be applied to the field of analyzing transferring transformation of organic pollutants in the water area and distribution law of multi-medium environment.

Description

technical field

[0001] The invention relates to a water quality analysis method. Background technique

[0002] The existing water quality analysis methods have a large demand for input parameters of water quality analysis, and the input parameters are often unobtainable due to the limitation of practical conditions. If too many literature values ​​or empirical values ​​are used, the analysis will be inaccurate; moreover, the internal parameters of these methods The parameters cannot be modified arbitrarily, which leads to a large deviation between the simulated results and the real value, and it is impossible to analyze specific problems; in addition, the excessive input parameters of the environment and the large-scale space-time simulation make these methods calculate The numerical solutions of some indicators generated fluctuate, which cannot achieve the expected results, and the data modules that can be called by its built-in background data analysis platform are limited...

Examples

specific Embodiment approach 1

[0012] Specific implementation mode one: the dynamic migration water quality analysis method based on the fugacity principle of the present embodiment, its process is as follows:

[0013] 1. Determine the various environmental phases of the water area to be tested, measure and obtain the geographic information parameters of the water area to be measured, and the environmental parameters of each environmental phase in each environmental phase; determine the target pollutants, and obtain the physical parameters of the target pollutants and chemical parameters;

[0014] 2. Calculate and obtain the fugacity capacity of each environmental phase according to all parameters obtained in step 1; then calculate and obtain the reaction kinetics of each environmental phase by the fugacity capacity of each environmental phase obtained and all parameters obtained in step 1 The rate constants are used to obtain the migration parameters between the various environmental phases;

[0015] 3. U...

specific Embodiment approach 2

[0059] Specific implementation mode two: this implementation mode is a specific embodiment for realizing specific implementation mode one:

[0060] In this example, the water area to be tested is the water area from Sancha River to Tongjiang River, the main stream of Songhua River. Assuming that a water pollution emergency occurs in Sancha River, it is determined that its environmental phases include air phase, water phase, soil phase and sediment phase. Environmental phase, measure and obtain the geographic information parameters of the river section and the environmental parameters of the above four environmental phases. The target pollutant is determined to be 2,4-DCP, and the physical and chemical parameters of the target pollutant are obtained, wherein the concentration of the pollutant entering the water body is 10.0 mg / L, and it migrates downward with the water flow.

[0061] Calculate the fugacity capacities of the four environmental phases, and calculate and obtain th...

technical field

[0001] The invention relates to a water quality analysis method. Background technique

[0002] The existing water quality analysis methods have a large demand for input parameters of water quality analysis, and the input parameters are often unobtainable due to the limitation of practical conditions. If too many literature values ​​or empirical values ​​are used, the analysis will be inaccurate; moreover, the internal parameters of these methods The parameters cannot be modified arbitrarily, which leads to a large deviation between the simulated results and the real value, and it is impossible to analyze specific problems; in addition, the excessive input parameters of the environment and the large-scale space-time simulation make these methods calculate The numerical solutions of some indicators generated fluctuate, which cannot achieve the expected results, and the data modules that can be called by its built-in background data analysis platform are limited...

Examples

specific Embodiment approach 1

[0012] Specific implementation mode one: the dynamic migration water quality analysis method based on the fugacity principle of the present embodiment, its process is as follows:

[0013] 1. Determine the various environmental phases of the water area to be tested, measure and obtain the geographic information parameters of the water area to be measured, and the environmental parameters of each environmental phase in each environmental phase; determine the target pollutants, and obtain the physical parameters of the target pollutants and chemical parameters;

[0014] 2. Calculate and obtain the fugacity capacity of each environmental phase according to all parameters obtained in step 1; then calculate and obtain the reaction kinetics of each environmental phase by the fugacity capacity of each environmental phase obtained and all parameters obtained in step 1 The rate constants are used to obtain the migration parameters between the various environmental phases;

[0015] 3. U...

specific Embodiment approach 2

[0059] Specific implementation mode two: this implementation mode is a specific embodiment for realizing specific implementation mode one:

[0060] In this example, the water area to be tested is the water area from Sancha River to Tongjiang River, the main stream of Songhua River. Assuming that a water pollution emergency occurs in Sancha River, it is determined that its environmental phases include air phase, water phase, soil phase and sediment phase. Environmental phase, measure and obtain the geographic information parameters of the river section and the environmental parameters of the above four environmental phases. The target pollutant is determined to be 2,4-DCP, and the physical and chemical parameters of the target pollutant are obtained, wherein the concentration of the pollutant entering the water body is 10.0 mg / L, and it migrates downward with the water flow.

[0061] Calculate the fugacity capacities of the four environmental phases, and calculate and obtain th...

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