氮氧化合物的排放现状及标准（Status and standards of nitrogen and oxygen emissions）.docVIP

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氮氧化合物的排放现状及标准（Status and standards of nitrogen and oxygen emissions）.doc

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氮氧化合物的排放现状及标准（Status and standards of nitrogen and oxygen emissions）

氮氧化合物的排放现状及标准（Status and standards of nitrogen and oxygen emissions） The amount of NOx emission in China increased year by year, and the thermal power plant emissions, the main city of atmospheric nitrogen oxide concentration is high, positive change of composite acid rain, part of the city of haze days increased year by year, environmental effect caused by nitrogen oxide emissions is more and more obvious. Therefore, it is imperative to further strengthen the nitrogen oxides emission standards of thermal power plants in China, and the emission standards of nitrogen oxides in thermal power plants are urgently needed to be revised as soon as possible. To make a revision of the emission standard of scientific and reasonable environmental conditions, not only need to study Chinas technological level and economic level, but also need to study in Europe and other developed countries emissions standards from their successful experience. Status of nitrogen and oxygen compounds emission in thermal power plants According to the statistics on emission control technologies of nitrogen and oxygen compounds in Chinas thermal power plants, the total emissions in 2009 have reached 8 million 600 thousand T, an increase of 43.9% over the 5 million 973 thousand T in 2003, accounting for 35%~40% of the national total emissions. By 2020, Chinas emissions of nitrogen and oxygen compounds will reach more than 12 million 340 thousand T. It can be seen that the impact of thermal power air pollution emissions on the ecological environment will become more and more serious. General situation of NOX emission standard setting in thermal power plants in China China in 1991 promulgated the emission standard of air pollutants from coal-fired power plants (GB132231991), after 1996 and 2003 two revision, the 1996 revision of the thermal power plant air pollutant emission standards in the new 1000t/h above the boiler (corresponding 300MW unit) specifies requirements for the concentration of NOX, no