| 燃煤飞灰中细颗粒物(PM2.5)的物理化学特性 |
| |
| 引用本文： | 赵承美,孙俊民,邓寅生,鲁静.燃煤飞灰中细颗粒物(PM2.5)的物理化学特性[J].环境科学研究,2004,17(2):71-73. |
| |
| 作者姓名： | 赵承美 孙俊民 邓寅生 鲁静 |
| |
| 作者单位： | 焦作工学院,资源与环境工程系,河南,焦作,454000 |
| |
| 基金项目： | 国家自然科学基金资助项目(4002013) |
| |
| 摘 要： | 研究了小龙潭电厂燃煤飞灰中细颗粒物的粒径分布、显微结构、颗粒类型以及As,Se,Cd,Pb,Cr和Be等6种微量重金属在不同粒径中的分布规律。结果表明:燃煤排放的PM2.5以球形颗粒为主,但随着颗粒物粒径的减小,非球形颗粒的数量有所增加;多数PM2.5的表面并不光滑,不同粒径颗粒之间存在逐级吸附的现象;微量重金属As,Se,Cd,Pb和Cr大部分富集在粒径小于2 1μm的细颗粒上,高钙飞灰对As有强烈的吸附作用。
|
| 关 键 词： | 飞灰 细颗粒物(PM2.5) 重金属 |
| 文章编号： | 1001-6929(2004)02-0071-03 |
| 收稿时间： | 2003/5/29 0:00:00 |
Physiochemical Characteristic of Fine Particle(PM2.5) in Fly Ash from Coal Combustion |
| |
| ZHAO Cheng-mei,SUN Jun-min,DENG Yin-sheng and LU Ging.Physiochemical Characteristic of Fine Particle(PM2.5) in Fly Ash from Coal Combustion[J].Research of Environmental Sciences,2004,17(2):71-73. |
| |
| Authors: | ZHAO Cheng-mei SUN Jun-min DENG Yin-sheng and LU Ging |
| |
| Institution: | Department of Resources and Environment,Jiaozuo Institute of Technology,Jiaozuo 454000,China |
| |
| Abstract: | Granularity distribution,microstructure,particular type and heavy metals such as As,Se,Cd,Pb,Cr and Be in fly ash were studied under different particle diameters for fly ash from Xiaolongtan Power Plant.With the reduction of granularity,quantities of global particulates were decreased,but quanitities of non-global particulates were increased.The surface of most PM2.5 was not smooth,and the phenomenon of particles adsorption existed among different grain sizes.The contents of heavy metals,such as As,Se,Cd,Pb and Cr,were enriched in fine particles with diameter below 2.1 μm.Fly ash of high calcium had a strong adsorption on As. |
| |
| Keywords: | fly ash fine particle(PM_(2 5)) heavy metals |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《环境科学研究》浏览原始摘要信息 |
| 点击此处可从《环境科学研究》下载免费的PDF全文 |
|
