Trace element behavior during co-combustion of sewage sludge with Polish coal
Trace element behavior during co-combustion of sewage sludge with Polish coal
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DOI：
10.1021/ef040018l
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发表时间：
2004-06
期刊：
影响因子：
5.3
通讯作者：
B. Miller;R. Kandiyoti;D. Dugwell
中科院分区：
文献类型：
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作者：
B. Miller;R. Kandiyoti;D. Dugwell
在实验室规模的悬浮燃烧反应器中，在代表商业流化床燃烧器的温度下，对污水污泥（能量含量高达30%）与煤的共燃烧进行了实验研究。重点一直在原燃料中存在的微量潜在的最有害的金属的行为的研究;数据为As，Cd，Cr，Cu，Hg，Ni，Pb，Se，V和Zn的报告。采用电感耦合等离子体质谱法（ICP-MS）和电感耦合等离子体原子发射光谱法（ICP-AES）以及汞的原子吸收法对金属浓度进行了量化。这些数据的解释已被促进使用的热力学平衡模型，吉布斯自由能最小化的基础上，冶金和热化学数据库（MTDATA）。此外，污水污泥煤燃烧被认为是导致增加损失的镉和汞从系统中，由于这些元素的显着较高的含量在…
The co-combustion of sewage sludge (up to 30% by energy content) with coal has been investigated experimentally in a bench-scale suspension-firing reactor, at temperatures representative of commercial fluidized bed combustors. The emphasis has been on the study of the behavior of the potentially most harmful metals present in the raw fuels in trace quantities; data for As, Cd, Cr, Cu, Hg, Ni, Pb, Se, V, and Zn are reported. Metal concentrations have been quantified using inductively coupled plasma−mass spectrometry (ICP-MS) and inductively coupled plasma−atomic emission spectroscopy (ICP-AES), plus an atomic absorption-based method for Hg. Interpretation of these data has been facilitated by the use of a thermodynamic equilibrium model, based on Gibbs free energy minimization; Metallurgical and Thermochemical Databank (MTDATA). The addition of sewage sludge to coal combustion is seen to lead to increased losses of Cd and Hg from the system, due to the significantly higher content of these elements in the ...