作者: E. Álvarez-Ayuso , X. Querol , A. Tomás
DOI: 10.1016/J.CHEMOSPHERE.2006.06.070
关键词: Waste management 、 Flue gas 、 Municipal solid waste 、 Combustion 、 Coal 、 Waste disposal 、 Chemistry 、 Coal combustion products 、 Leaching (metallurgy) 、 Fly ash
摘要: The fate of trace elements in a combustion power plant equipped with wet limestone flue gas desulphurisation (FGD) installation was studied order to evaluate its emission abatement capacity. With this aim representative samples feed coal, boiler slag, fly ash, limestone, FGD gypsum and process water wastewater were analysed for major using the following techniques: inductively coupled plasma-mass spectrometry (ICP-MS), plasma-atomic (ICP-AES), ion chromatography (IC), selective electrode (ISE) atomic absorption spectroscopy (AAS). Mass balances established allowing determine element partitioning behaviour. It found that, together S, Hg, Cl, F, Se As those entering primarily as gaseous species. capacity such offered values ranged from 96% 100% As, S Se, about 60% Hg. environmental characterisation by-products (boiler ash gypsum) also according Council Decision 2003/33/EC on waste disposal. To end, leaching tests (EN-12457-4) performed, analysing concern by means aforementioned techniques. According behaviour studied, these could be disposed landfills non-hazardous wastes.