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燃油式火化机排放烟气中二噁英类污染水平和排放特征

REN Yue,TIAN Hong-hai,LI Nan,ZHOU Zhi-guang,LIU Ai-min,DU Bing,LI Ling-ling,LU Yong

Research of Environmental Sciences（2009）

Cited 23|Views16
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Abstract
对国内6台燃油式火化机排放烟气中的二噁英类污染水平和排放特征进行了初步研究.结果表明:烟气样品中ρ(二噁英类)为9.2~120.0 ng/m3〔273.15 K,101.325 kPa,φ(O2)为11%换算值〕,毒性当量(TEQ)浓度为1.0~8.1 ng/m3;所有烟气样品中二英类同类物分布相似,17种2,3,7,8-氯代二噁英类同类物被全部检出,其中2,3,4,7,8-P5CDF对毒性当量浓度的贡献最大;ρ(PCDFs)高于ρ(PCDDs),ρ(T4CDFs)在PCDFs中最高;燃烧控制和烟气处理措施是影响燃油式火化机二噁英类生成和排放的重要因素.
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Key words
PCDDs/PCDFs,crematory,flue gas
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