Tracing method for river sudden water pollution events

A technology for water pollution and rivers, applied in general water supply conservation, data processing applications, special data processing applications, etc., can solve problems such as damaging the water environment, threatening health, and affecting social stability, achieving low computational complexity and flexibility low effect

Active Publication Date: 2019-08-20
HANGZHOU DIANZI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

However, with the expansion of the field and scale of modern industrial production, the production, storage, transportation, and use of various chemicals and dangerous goods have increased significantly, and the potential sources of accidents have also increased. Once an accidental leakage occurs, not only damage The local water environment poses a threat to people's health and even affects social stability

Method used

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  • Tracing method for river sudden water pollution events
  • Tracing method for river sudden water pollution events
  • Tracing method for river sudden water pollution events

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The inventive method is specifically:

[0014] Step 1: Define the river area, measure the parameters and establish the water quality equation.

[0015] Set the traceability experiment area (the simulation assumes that the river area is 200m wide and 100m long).

[0016] According to the specific application scenario, measure and calculate the horizontal and vertical flow velocity of the river and the diffusion coefficient of pollutants and other parameters, and establish the following water quality equation. The water quality equation is also called the convection-diffusion equation. The three-dimensional water quality transport equation is as follows:

[0017]

[0018] In the formula, C is the pollutant concentration of the prediction point at time t (x, y, z); t is time; x, y, z are the coordinates of the pollutant discharge point as the coordinate origin; k is the pollutant’s Degradation coefficient; u x ,u y ,u z Respectively, the average velocity of longit...

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PUM

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Abstract

The invention relates to a tracing method for river sudden water pollution events. The tracing river is abstracted into a two-dimensional river channel; assuming that the shape of the two-dimensionalriver channel is regular, according to the technical scheme, data such as the degradation coefficient of river pollutants, the average speed of transverse and longitudinal water flow and the transverse and longitudinal diffusion coefficients of the pollutants in a water body are fully considered; diffusion simulation of pollutant emission is carried out on an appointed river area; calculation isconducted according to an observation value obtained through fixed-point monitoring and a calculation value in actual diffusion, quantitative solution is conducted on the number, the discharge position and the discharge intensity of pollutant source points through the harmony search algorithm fused with the local search, and finally the tracing method for the river sudden water pollution event isdetermined. The method has the characteristics of openness, flexibility, low calculation complexity and the like.

Description

technical field [0001] The invention belongs to the field of water quality monitoring, relates to automation technology, and in particular relates to a source tracing method for sudden water pollution incidents in rivers. Background technique [0002] Surface water is one of the important natural resources that human beings rely on for survival and development, and is closely related to human society. At the same time, my country is also a country that is seriously short of fresh water resources. However, with the expansion of the field and scale of modern industrial production, the production, storage, transportation, and use of various chemicals and dangerous goods have increased significantly, and the potential sources of accidents have also increased. Once an accidental leakage occurs, not only damage The local water environment poses a threat to people's health and even affects social stability. [0003] According to information released by the State Environmental Prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/26
CPCG06Q50/26G06F30/20Y02A20/152
Inventor 蒋鹏梁帅朱何
Owner HANGZHOU DIANZI UNIV
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