Method for analog computation of concentration of pollutant in sensitive area

A technology for pollutant concentration and sensitive areas, which is applied in the field of analog calculation of pollutant concentrations in sensitive areas, can solve the problems of poor applicability and inability to establish accurate and effective models, and achieve strong practicability, large-scale engineering applications and management application prospects, Reduce the effect of input parameters

Inactive Publication Date: 2017-12-05
NANJING NARI GROUP CORP
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Problems solved by technology

However, the data of the concentration of pollutants in the atmosphere measured by the current automatic monitoring station is mainly used as an early warning of exceeding the standard, and the applicability is not strong, and most of the current predictions directly refer to the concentration data of the polluta

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  • Method for analog computation of concentration of pollutant in sensitive area
  • Method for analog computation of concentration of pollutant in sensitive area
  • Method for analog computation of concentration of pollutant in sensitive area

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[0042] In order to further describe the technical features and effects of the present invention, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] refer to Figure 1-Figure 3 , a method for simulating and calculating the concentration of pollutants in sensitive areas. The invention is based on the Gaussian model, selects windy, small wind, and static wind models according to the wind speed, and divides the grid of the pollutant surface source to determine the pollution of the sensitive points around the park respectively. concentration, and then superimposed calculation.

[0044] The coordinate system is established to determine the location of the pollution source and the coordinates of the predicted point

[0045] Evaluation area meshing

[0046] The center point of the non-point source pollution area is determined as the equivalent point of the total source intensity, and the plant area 1 i...

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Abstract

The invention discloses a method for analog computation of concentration of a pollutant in a sensitive area. The method is as follows: 1) establishing a coordinate system according to the position of a predicted point of the sensitive area, and determining the position of a non-point source pollution source and coordinates of the predicted point; 2) determining the surface source height of the pollution source; determining the wind speed at a discharge site according to the surface source height; 4) determining diffusion parameters; 5) establishing a diffusion model, and inversely calculating emission source intensity of the pollutant according to the concentration of the pollutant at a monitoring point; 6) positively calculating the concentration of the pollutant at the predicted point according to the emission source intensity, and superimposing environmental background value to obtain the actual concentration value of the predicted point; and 7) comparing the positively-calculated concentration, obtained in the step 6), of the pollutant at the predicted point and a environmental standard to judge whether the concentration of the pollutant exceeds the standard. The concentration of the pollutant can be in real time monitored by means of an air automatic monitoring station built in the periphery of an industrial park. By setting up of the pollutant diffusion model, a calculation scheme for the concentration of the pollutant in the sensitive area can be formed, and diffusion of the pollutant in the industrial park can be forecasted and warned when emission source intensity is unknown.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, in particular to a method for simulating and calculating the concentration of pollutants in sensitive areas. Background technique [0002] With the development of the country, the awareness of environmental protection from the people to the government is getting stronger and stronger, and environmental monitoring is an important part of environmental protection. However, the data of the concentration of pollutants in the atmosphere measured by the current automatic monitoring station is mainly used as an early warning of exceeding the standard, and the applicability is not strong, and most of the current predictions directly refer to the concentration data of the pollutant discharge outlets of enterprises as the source strength. Diffusion simulations were studied. However, in the early stage of industrial park construction and when the enterprise sewage data is not connected, th...

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0004
Inventor 梁艳谢凯王亦宁郝秀峰曹翊军俞旭东陈文鑫刘海泉贾坤
Owner NANJING NARI GROUP CORP
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