环境工程学报2017，Vol.11Issue(7)：4133-4139,7.DOI:10.12030/j.cjee.201605169
民用散煤燃烧排放颗粒物微观特征
Microscopic characteristics of individual particles from residential raw coal combustion
摘要
Abstract
In order to better understand the effect of particulate matter from residential combustion of raw coal,particulate samples were collected using a self-designed sampling collection system.The morphology and compo sition of individual particles were examined using a scanning electron microscope equipped for energy dispersive X-ray analysis (SEM-EDX).The results showed a variety of particles from the residential combustion of raw coal,including tar balls,fly ash,platy or blocky shaped carbonaceous particles,mineral particles,soot aggregates,and other particles.Spherical,or nearly spherical,particles were the predominant morphology,accounting for 49.2％.The amount of soot aggregates was low and only accounted for 3.6％.In their elementary composition,the particles were mainly carbonaceous (77.2％).Although the S concentration was low in particulate matter,elemental S appeared in most particles.The size distribution of the particulate matter from residential combustion of raw coal indicated that 81％ of the particulate matter was ＜ 1 μm.The residential combustion of raw coal is one of the most important sources of atmospheric pollutants in China.Control measures should be developed to mitigate particulate matter emission from residential combustion of raw coal.关键词
民用散煤/SEM-EDX/颗粒物/微观形貌/粒径分布Key words
residential raw coal/SEM-EDX/particulate matter/morphology/size distribution分类
资源环境引用本文复制引用
戚涛,高健,李静,徐仲均..民用散煤燃烧排放颗粒物微观特征[J].环境工程学报,2017,11(7):4133-4139,7.基金项目
国家自然科学基金资助项目(41375132,91544226) （41375132,91544226）
环境保护部-公益性行业科研专项(201409003) （201409003）
