| 电弧炉炼钢过程中二□英类的排放浓度和同类物分布 |
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| 引用本文： | 陆 勇,田洪海,周志广,杜 兵,李 楠,任 □,李玲玲,刘爱民.电弧炉炼钢过程中二□英类的排放浓度和同类物分布[J].环境科学研究,2009,22(3):304-308. |
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| 作者姓名： | 陆 勇 田洪海 周志广 杜 兵 李 楠 任 □ 李玲玲 刘爱民 |
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| 作者单位： | 1. 中国科学院,安徽光学精密机械研究所,安徽,合肥,230031
2. 国家环境分析测试中心,国家环境保护二(噁)英污染控制重点实验室,北京,100029 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 对国内某电弧炉炼钢设施的烟气和飞灰样品中二(噁)英类物质进行了采样分析.结果表明:炉内直接排烟和屋顶罩排烟烟气中的二(噁)英类毒性当量(TEQ)浓度平均值分别为0.13和0.17 ng/m3(均指I-TEQ当量);2种烟气的布袋飞灰中二(噁)英类毒性当量质量分数分别为7.5和55.0 ng/kg;PCDDs同类物的质量浓度随着氯取代数的增加而呈升高趋势,PCDFs实测质量浓度和毒性当量浓度均远大于PCDDs;排放分布特征表明,电弧炉炼钢设施排放的二(噁)英类生成机理应为从头合成反应.
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| 关 键 词： | 二(噁)英类 电弧炉 排放 从头合成 |
| 收稿时间： | 2008/6/10 0:00:00 |
| 修稿时间： | 2008/9/15 0:00:00 |
Concentrations and Congener Profiles of Dioxins in Stack Gas and Fly Ash Samples from an Electric Arc Furnace |
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| LU Yong,TIAN Hong-hai,ZHOU Zhi-guang,DU Bing,LI Nan,REN Yue,LI Ling-ling and LIU Ai-min.Concentrations and Congener Profiles of Dioxins in Stack Gas and Fly Ash Samples from an Electric Arc Furnace[J].Research of Environmental Sciences,2009,22(3):304-308. |
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| Authors: | LU Yong TIAN Hong-hai ZHOU Zhi-guang DU Bing LI Nan REN Yue LI Ling-ling and LIU Ai-min |
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| Institution: | LU Yong~1,TIAN Hong-hai~2,ZHOU Zhi-guang~2,DU Bing~2,LI Nan~2,REN Yue~2,LI Ling-ling~2,LIU Ai-min~21.Anhui Institute of Optics , Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China2.Dioxin Pollution Control Key Laboratory of State Environmental Protection Administration,National Research Center for Environmental Analysis , Measurements,Beijing 100029,China |
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| Abstract: | The contents of dioxins in stack gas and fly ash samples taken from an electric arc furnace(EAF) in China were analyzed.The results showed that the average Toxic Equivalent Quantity(TEQ) concentrations of PCDD/Fs in stack gas and hood emissions were 0.13 and 0.17(ng/m~3) respectively.The PCDD/Fs TEQ concentrations in fly ash samples from two bag filters were 7.5 and 55.0(ng/kg) respectively.The concentration of congeners increased with increasing chlorination level for PCDDs,while concentrations of PCDFs we... |
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| Keywords: | dioxins electric arc furnace emission de novo |
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