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SPECIATION OF ELEMENTS IN INCINERATION RESIDUES
Citation:
Eighmy, T., D. Domingo, J. Krzanowski, D. Stampfli, AND D. Eusden. SPECIATION OF ELEMENTS IN INCINERATION RESIDUES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-94/220.
Description:
Knowledge as to the speciation of elements in incineration residues is important for the successful management and utilization of the residues and for modelling and predicting their leaching behavior. s part of a larger research effort on speciation in combustion residues, ESP ash from a Canadian MSW waste-to-energy facility was subjected to a number of analytical and spectroscopic techniques to identify element speciation. he intent of this effort was to evaluate the utility of various techniques and compare speciation information provided by each method. t is concluded that a variety of methods are needed to better understand speciation. eutron activation analysis (NAA), X-ray powder diffraction (XRPD), scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDS) and petrography, scanning-transmission electron microscopy/EDS (STEM/EDS), secondary ion mess spectroscopy (SIMS), X-ray photoelectron spectroscopy (XPS) and geochemical thermodynamic modelling of leaching using the computer program MINTEQA2 were particularly effective in characterizing the speciation of O,Cl,C, K,Zn,Na,Ca, S, Si, Pb,Cd, Al,As, and Sn in the ash.