Environmental Impact Assessment System and Method for Dioxin Emissions from Industrial Sources Based on Model Prediction Method

A dioxin and industrial technology, applied in the field of environmental impact assessment of dioxin emissions from industrial pollution sources, can solve problems such as failure to form, and achieve the effects of strong practicability, high input efficiency, prediction accuracy, and large data coverage

Active Publication Date: 2016-07-06
ZHEJIANG UNIV
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Problems solved by technology

[0003]At present, domestic studies on the atmospheric diffusion of dioxin emissions from industrial sources and the research on the health risks caused by them are two in

Method used

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  • Environmental Impact Assessment System and Method for Dioxin Emissions from Industrial Sources Based on Model Prediction Method

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Embodiment

[0074] With a certain hazardous waste incinerator as the center, a total of 2500 grids of 50×50 are divided according to the side length of 100m within a range of 5×5km to determine the scope of the evaluation area and the boundary of model calculation. The actual discharge of dioxins (0.5ng-TEQ / Nm 3 ) into the source parameter database in the atmospheric diffusion model, and add information such as chimney height, flue gas flow rate, and chimney outlet temperature. Establish the meteorological database of the evaluation area from 2009 to 2011, and the terrain elevation database with 30m×30m accuracy. Obtain data from the pollution source parameter database, meteorological database and terrain database, and run the atmospheric diffusion model to calculate the atmospheric concentration of dioxins and dry and wet deposition in each grid in the region. The results show that the atmospheric dioxin concentration of each grid in the evaluation area is lower than the Japanese atmosp...

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Abstract

The invention discloses an environmental impact assessment system and method for dioxin discharge from industrial sources based on a model prediction method. The evaluation system is used to store the industrial pollution source parameter database that meets the requirements of the AERMOD format, including the pollution source meteorological database, pollution source meteorological data, and evaluation area terrain elevation data; the AERMOD model obtains data from the industrial pollution source parameter database, pollution source meteorological database, and evaluation area terrain database. AERMOD model for analysis; run the AERMOD model to obtain the grid data of dioxin concentration and deposition, and input them into the Risk Analyst model together with pollution source parameters, set the chemical parameters of dioxin, select exposure scenarios and receptors and then run The Risk Analyst model generates grid data for evaluating dioxin exposure and hazard risk characterization of recipients in the area. The invention has strong practicability, is simple and intuitive, and has accurate and reliable models and methods.

Description

technical field [0001] The invention relates to the technical field of environmental impact assessment of dioxin discharge from industrial pollution sources based on a model prediction method, in particular to a system and method for evaluating the environmental impact of dioxin discharge from industrial sources based on a model prediction method. Background technique [0002] At present, the atmospheric diffusion simulation and ecological risk assessment technology methods for dioxin emissions from industrial sources (mainly incineration sources) have important practical value in the field of environmental protection. The air dispersion model used in this study is the Gaussian Plume Air Dispersion Model (AERMOD), which was developed by the Regulatory Model Improvement Committee (AERMIC) formed by the National Environmental Protection Agency and the American Meteorological Society. legal model. AERMOD is the calculation model for primary and secondary environmental impact a...

Claims

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Application Information

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IPC IPC(8): G06Q10/04
Inventor 李晓东陆胜勇陈彤严建华蒋旭光王奇陈佳王超
Owner ZHEJIANG UNIV
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