垃圾焚烧炉飞灰和烟气中多氯化萘的分布特征

1)深圳大学核技术应用研究所, 深圳 518060; 2)中国科学院广州地球化学研究所,广州 510640; 3)深圳市环境监测中心站, 深圳 518049

大气污染; 环境监测; 垃圾焚烧炉; 飞灰; 烟气; 多氯化萘; 来源解析

Polychlorinated naphthalene distribution in fly-ash and flue gas from waste incinerator
Liu Guoqing1,2, Liu Dequan3, and Zhou Zhihua3

Liu Guoqing1,2, Liu Dequan3, and Zhou Zhihua31)Institute of Applied Nuclear Technology, Shenzhen University, Shenzhen 518060, P.R.China2)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, P.R.China3)Shenzhen Environmental Protection Monitoring Station, Shenzhen 518049, P.R.China

air pollution; environmental monitoring; waste incinerator; flue gas; fly ash; polychlorinated naphthalene; source apportionment

DOI: 10.3724/SP.J.1249.2015.04398

备注

分析深圳市生活垃圾、医疗废弃物和危险废弃物焚烧炉排放飞灰及烟道气中多氯化萘(polychlorinated naphthalene, PCN)的污染特征.结果发现,垃圾焚烧炉排放飞灰和烟道气中PCN的质量分数为0.18~3.30 ng/g(平均 0.73 ng/g; 干质量(dry weight, dw))和质量浓度0.33~1.70 ng/m3(平均0.87 ng/m3,dw).医疗废弃物和工业废弃物焚烧炉中的PCN含量普遍高于生活垃圾焚烧炉,飞灰和烟道气中排放的PCN主要以3-氯取代化合物—5-氯取代化合物为主,其中,CN23、CN28/CN43、CN35、CN38/CN40、CN46、CN61、CN57、CN62和 CN59是最主要的化合物.

We analyze the polychlorinated naphthalene(PCN)levels in fly ash and flue gas samples collected from hospital, industrial and municipal solid waste incinerator in Shenzhen. The ranges of PCNs in fly ash and stack gas are 0.18~3.30 ng/g(dry weight, dw; averaged 0.73 ng/g)and 0.33~1.70 ng/m3(averaged 0.87 ng/m3, dw), respectively. The PCN levels in samples from medical waste incinerators(MWI)and industrial waste incinerators(IWI)are found to be higher than those in samples from municipal solid waste incinerators(MSWI). The homologue pattern of PCNs in fly ash and stack gas is dominated by TrCNs-PeCNs. Specific investigation on PCN congeners reveals that CN23, CN28/CN43, CN35, CN38/CN40, CN46, CN61, CN57, CN62 and CN59 are the most dominant compound in fly ash and flue gas samples.

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