Measurement of polychlorinated dibenzo-p-dioxin and dibenzofuran emission from EAF steel making proces
Measurement of polychlorinated dibenzo-p-dioxin and dibenzofuran emission from EAF steel making proces
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DOI：
10.2478/v10172-012-0089-1
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发表时间：
2012-10
影响因子：
0.6
通讯作者：
T. Sofilić;Judit Jendričko;Z. Kovačević;Mario Ćosić
中科院分区：
文献类型：
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作者：
T. Sofilić;Judit Jendričko;Z. Kovačević;Mario Ćosić
电弧炉炼钢是一项重要的回收活动，有助于回收钢铁资源和减少废钢/废料。由于炉料中含有塑料、涂料和油漆等有色金属材料，在熔炼过程中会产生大量的污染物，其中包括以多环芳烃（PAH）、多氯联苯（PCBs）、多氯二苯并二恶英（PCDDs）和多氯二苯并呋喃（PCDFs）为代表的持久性有机污染物（POPs）。本研究旨在调查CMC西萨克d.o.o.的熔融车间现代化期间安装的新电弧炉粉尘处理厂烟囱中多氯二苯并对二恶英和二苯并呋喃的排放量，克罗地亚.所获得的结果进行了比较，与以前获得的结果PCDDs/Fs排放量的测量，从旧的电弧炉粉尘处理，没有粉尘落尘箱，以及淬火塔。电弧炉A和电弧炉B烟道气中PCDDs/Fs的总浓度分别为0.2098和0.022603 ng I-TEQ/Nm ~ 3，与前人的结果接近。根据2008年和2011年烟囱废气中多氯二苯并对二恶英和多氯二苯并呋喃的实测浓度计算得出的多氯二苯并对二恶英和多氯二苯并呋喃排放系数的计算值分别为1.09和0.22 ng I-TEQ/吨钢。
Electric arc furnace (EAF) steel manufacturing is an important recycling activity which contributes to the recovery of steel resources and steel scrap/waste minimization. Because of the content of plastics, coatings and paintings as well as other nonferrous materials in the charge during melting, a strong emission of pollutants, including polluting substance group consists of persistent organic pollutions (POPs) represented by polycyclic aromatic hydrocarbon (PAH), polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and polychlorinated dibenzofurans (PCDFs) occurs. This study was set out to investigate emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/Fs) from the stack of a new electric-arc furnace-dust treatment plant installed during modernisation of the Melt Shop in CMC SISAK d.o.o., Croatia. Obtained results have been compared with previously obtained results of PCDDs/Fs emission measurements from the old electric-arc furnace dust treatment without dust drop-out box, as well as quenching tower. The total PCDDs/Fs concentration in the stack off gases of both electric arc furnaces EAF A and EAF B were 0.2098 and 0.022603 ng I-TEQ/Nm3 respectively, and these results are close to previous obtained results by other authors. The calculated values of the emission factors for PCDDs/Fs calculated on the basis of measured PCDDs/Fs concentration in the stack off gases in 2008 and 2011 were 1.09 and 0.22 ng I-TEQ/ ton steel, respectively.