摘要
燃料燃烧会排放一次颗粒物和二次颗粒物,一次颗粒物中亚微米粒子主要是由于无机矿物质经蒸发-成核-凝结-凝并的途径形成的;超微米颗粒的产生不同于亚微米颗粒的形成,是由于破碎机理。二次颗粒物是由气态前驱体在大气中转化而成的。我国燃烧源主要是煤燃烧、燃油机动车和农村生活燃料等。深入认识颗粒物的形成及燃烧源的特征对有效控制颗粒物的排放是很有帮助的。
Primary particulate matter（PM） and secondary PM will be emitted after fossil fuel and biomass combusted. The sub-micrometer PM is formed mainly by vaporing, nucleating, condensating and coagulating pathway. And the formation of ultra-micrometer PM is the breaking up mechanism. The secondary PM is transformed in the ambient air by gaseous precursors. The combustion sources in our country are coal combustion, oil burned vehicles, living fuels and so on. It is helpful to deeply know the formation of PM and the characteristic of combustion resources for effectively controlling the PM emissions.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第5期43-47,共5页
Techniques and Equipment for Environmental Pollution Control
基金
国家"973"重点基础研究发展规划资助项目(2002CB211600)
关键词
一次颗粒物
二次颗粒物
形成机理
燃烧源
primary particulate matter
secondary particulate matter
formation mechanism
combustion sources
