甘蔗渣燃烧产生的飞灰中的二恶英含量。
Dioxin levels in fly ash coming from the combustion of bagasse.
作者信息
Choong Kwet Yive Nee Sun, Tiroumalechetty Megalei
机构信息
Department of Chemistry, University of Mauritius, Réduit, Mauritius.
出版信息
J Hazard Mater. 2008 Jun 30;155(1-2):179-82. doi: 10.1016/j.jhazmat.2007.11.045. Epub 2007 Nov 22.
Levels of dioxins (PCDD/Fs) were determined in fly ash samples collected from a power plant burning bagasse for production of electricity. The concentrations ranged from 2.2pgWHO-TEQ/g to 190pgWHO-TEQ/g with samples collected after ESP containing significantly much higher (more than 12 times on average) levels than samples collected before ESP. Our results seem to indicate that both the de novo and the precursor mechanisms are significantly involved in the formation of dioxins the fly ash during combustion of bagasse.
测定了从一家以甘蔗渣为燃料发电的发电厂采集的飞灰样品中二恶英（多氯二苯并对二恶英/多氯二苯并呋喃）的含量。浓度范围为2.2皮克世卫组织毒性当量/克至190皮克世卫组织毒性当量/克，电除尘器之后采集的样品中的含量明显高得多（平均超过12倍），高于电除尘器之前采集的样品。我们的结果似乎表明，从头合成机制和前驱体机制在甘蔗渣燃烧过程中飞灰中二恶英的形成中都起着重要作用。
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