| 垃圾焚烧厂排放颗粒物组分粒径分布特征 |
| 摘要点击 1675 全文点击 683 投稿时间：2018-10-11 修订日期：2018-12-20 |
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| 中文关键词 垃圾焚烧 颗粒物 碳组分 重金属 粒径分布 |
| 英文关键词 waste incineration particulate matter carbonaceous components heavy metal elements particle size distribution |
| 作者 | 单位 | E-mail | | 余卓君 | 南开大学环境科学与工程学院, 国家环境保护城市空气颗粒物污染防治重点实验室, 天津 300350 | 370142973@qq.com | | 吴建会 | 南开大学环境科学与工程学院, 国家环境保护城市空气颗粒物污染防治重点实验室, 天津 300350 | envwujh@nankai.edu.cn | | 张裕芬 | 南开大学环境科学与工程学院, 国家环境保护城市空气颗粒物污染防治重点实验室, 天津 300350 | | | 张进生 | 南开大学环境科学与工程学院, 国家环境保护城市空气颗粒物污染防治重点实验室, 天津 300350 | | | 冯银厂 | 南开大学环境科学与工程学院, 国家环境保护城市空气颗粒物污染防治重点实验室, 天津 300350 | | | 李蒲 | 武汉市环境监测中心, 武汉 430015 | |
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| 中文摘要 |
| 本研究采用静电低压撞击器（ELPI）采集垃圾焚烧厂排放颗粒物，分析颗粒物中元素和碳组分，对其中OC、EC和重金属元素在14个粒径段的粒径特征进行分析，并建立了垃圾焚烧厂源PM1、PM2.5和PM10的元素和碳组分成分谱，以期为精细化来源解析提供参考.结果表明，垃圾焚烧厂排放颗粒物的主要组分有Al、Si、S、Ca、Cr、Fe、OC和EC等（质量分数≥1%），其中OC和Ca的含量较高，在PM2.5中的质量分数分别为10.15%和12.37%；重金属含量Cr > Pb > Zn > Mn > Cu > Cd > Ni，其中Cr和Pb在PM2.5中的质量分数分别为1.83%和0.74%，Cr在PM1中的质量分数达到3.53%；OC在2.39~3.99 μm和6.68~9.91 μm这2个粒径段的含量达到峰值，分别占OC总含量的15.02%和20.45%，但在细颗粒物中的含量高于在粗颗粒物中的含量，EC在细颗粒物中的含量远高于在粗颗粒物中的含量，在0.382~0.613 μm粒径段占14.8%；Cr、Mn、Ni、Cu、Zn、Cd和Pb等重金属元素主要富集于细颗粒中. |
| 英文摘要 |
| There are few analyses on the components of particulate matter emitted from waste incineration plants. In past studies, analyses of particle size distribution characteristics of the components were mainly targeted at particles with larger particle sizes. An electrical low pressure impactor (ELPI) was used in this study to collect the particulate matter emitted from a waste incineration plant, and the elements and carbonaceous components of these samples were analyzed. The particle size characteristics of organic carbon (OC), elemental carbon (EC), and heavy metal elements in 14 particle size segments were analyzed and composition profiles of elements and carbonaceous components of PM1, PM2.5, and PM10 from the waste incineration plant were established to provide a reference for refined source apportionment research. The results showed that the main components of the waste incineration plant included Al, Si, S, Ca, Cr, Fe, OC, EC, etc. OC and Ca were dominating components, and mass fractions of these components in the PM2.5 profile were 10.15% and 12.37%, respectively. The contents of heavy metals were ranked as Cr > Pb > Zn > Mn > Cu > Cd > Ni, and the mass fractions of Cr and Pb in PM2.5 amounted to 1.83% and 0.74%, respectively. OC in the range of 2.39-3.99 and 6.68-9.91 μm accounted for 15.02% and 20.45% of the total OC content, respectively, and the content of OC in fine particles was higher than that in coarse particles. The content of EC in fine particles was much higher than that in coarse particles, and it accounted for 14.8% in the 0.382-0.613 μm particle size. Heavy metal elements such as Cr, Mn, Ni, Cu, Zn, Cd, and Pb were mainly concentrated in the fine particles. |
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