Combustion of brominated flame retardants and behavior of its byproducts
Combustion of brominated flame retardants and behavior of its byproducts
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DOI：
10.1016/s0045-6535(00)00224-1
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发表时间：
2001-02-01
期刊：
影响因子：
8.8
通讯作者：
Shiozaki, K
中科院分区：
文献类型：
--
作者：
Sakai, S;Watanabe, J;Shiozaki, K
研究了三种含溴阻燃剂的废弃物样品在焚烧过程中PBDDs/DFs向烟气和焚烧残渣中的物质流率。使用的样品包括多溴二苯醚（一种典型的阻燃剂）、使用过的电视机外壳材料（实际上是废料）和废弃印刷电路板。在多溴二苯醚/聚乙烯、废弃电视机外壳材料和印刷电路板的实验样本中，多溴联苯并对二恶英/二苯醚的浓度在3，000至130，000纳克/克之间。与其他调查相比，这些数值非常高。输入样品中氯浓度的增加降低了烟气中PBDDs/DFs的比值，提高了PCDDs/DFs的比值。在适当的燃烧控制和烟气处理下，含溴阻燃剂的树脂焚烧释放的PBDDs/DFs量低于投入量。焚烧残留物中PBDDs/DFs的存在主导了二恶英的释放总量。当PBDD/DF、PCDD/DF和PXDD/DF作为总量考虑时，释放总量低于输入总量。(C)2001爱思唯尔科技有限公司版权所有。
The substance flow rate of PBDDs/DFs into flue gas and incineration residues from incineration of three types of waste samples containing brominated flame retardants were examined. The samples used consisted of PBDEs (a typical retardant), used TV casing materials (actual waste materials), and waste printed circuit boards. PBDDs/DFs concentrations in the experimental samples of PBDEs/PE, waste TV casing materials and printed circuit boards ranged between 3000 and 130,000 ng/g. These values are very high when compared to other investigations. The increase of chlorine concentration in input sample reduced the ratio of PBDDs/DFs in flue gas and raised the ratio of PCDDs/DFs. With adequate combustion control and flue gas treatment, the amount of PBDDs/DFs released from the incineration of resin containing brominated flame retardants was lower than the input amount. The presence of PBDDs/DFs in incineration residues dominated the total amount of dioxins released. When PBDDs/DFs, PCDDs/DFs and PXDDs/DFs were considered as a total, the total amount released was lower than the total amount input. (C) 2001 Elsevier Science Ltd. All rights reserved.