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Study on Regional Air Quality Impact for Guizhou Thermal Power Plan of the "West-East Power Transfer Project"

Author: XueWenBo
Tutor: ZhangZengQiang;DuanNing
School: Northwest University of Science and Technology
Course: Environmental Engineering
Keywords: West to East Atmos High-performance computing Numerical Simulation Regional Air Quality
CLC: X823
Type: Master's thesis
Year: 2007
Downloads: 95
Quote: 0
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Abstract


This study is a combination of the National Key Basic Research and Development Program (973 Program) \Atmos prediction model developed by the Iowa University, USA. Paper Atmos prediction model secondary development, the newly developed model called Atmos-China Edition, has laid an important foundation for further study of the Atmos-China version of the 973 project, one of the innovations of this paper. High-emission characteristics of thermal power projects, can easily lead to regional atmospheric pollution. Guizhou Province, the hardest hit as of double acid rain and sulfur dioxide pollution in China, the \Therefore, the analysis of the \In this thesis, using scenario analysis method to study the regional atmospheric environmental problems that may be caused by \The air quality model (Atmos mode) simulation of two scenarios caused by SO2 pollution, acid rain, pollution and PM10 pollution. In contrast to 2004 and 2010, the simulation results obtained \The simulation results show that: (1) the quality of atmospheric environment in the simulation area in 2010 has significantly improved compared to 2004. Mainly to reduce the sulfur dioxide concentration exceeded the area; decrease in sulfur deposition ultra zero bound load area; decrease in PM10 concentration exceeded the area; improve urban air quality in four areas. (2) the analog area within sulfur dioxide and sulfur deposition pollution source caused by the non-power plant. 2010 the installed capacity of the plant increased significantly relative to 2004, but due to the installation of desulphurization devices of all power plants in Guizhou Province in 2010, the power plant source of the concentration of sulfur dioxide and sulfur deposition contribution for 2004 has been significantly reduced; instead The source plant emissions did not get cut sulfur dioxide pollution and regional acidification is still very grim. Therefore, the key is to control the non-power plant source of sulfur dioxide emissions from the region to solve the problem of sulfur dioxide pollution and acidification, pure source from the power plant to cut to start difficult to solve such a serious environmental problem. (3) The regional concentration of PM10 pollution caused by the thermal power plant in the province of Guizhou in 2010 and 2004 did not exceed the national secondary standard, relative to the 2004 the supranational level standard area decreased significantly in 2010, mainly sulfur dioxide emission reduction ( secondary reduced sulfate concentration) results. PM10 analog only consider the source of the emissions of the power plant, at the same time the the PM10 particle formation mechanism is very complex, it is the result of a variety of sources contribution. Therefore, the simulation can only show that the size of the power plant source contribution, and the results are much lower than the actual value. However, the main reason for the deterioration of PM10 pollution is not the whole of the regional environment, and not a direct threat to regional atmospheric environmental quality.

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CLC: > Environmental science, safety science > Environmental Quality Assessment and Environmental Monitoring > Analysis and Evaluation of Environmental Quality > Atmospheric evaluation
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