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Behavior of heavy metals during fluidized bed combustion of poultry litter

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Show simple item record Lynch, Deirdre Low, Fiona Henihan, Anne Marie Garcia, Alberto Kwapinski, Witold Zhang, Lian Leahy, James J. 2015-07-08T10:50:32Z 2015-07-08T10:50:32Z 2014
dc.identifier.citation Lynch, D.; Low, F.; Henihan, A. M.; Garcia, A.; Kwapinski, W.; Zhang, L.; Leahy, J. J., Behavior of Heavy Metals during Fluidized Bed Combustion of Poultry Litter. Energy & Fuels 2014, 28, (8), 5158-5166. en_US
dc.description peer-reviewed en_US
dc.description.abstract In this study, we have examined the behavior of heavy metals during fluidized bed combustion of poultry litter. Heavy metals examined include As, Cd, Co, Cr, Cu, Hg, Mn, Mo, Ni, Pb, V, and Zn. Solid and gaseous streams were analyzed and compared with relevant guidelines to determine the potential environmental impact of combustion and subsequent land spreading or landfill of the resulting ash. The majority of heavy metals were associated with the solid ash fraction, with low gaseous emissions. Pb and As were concentrated in the fine baghouse ash (160 °C) due to their volatility. The remaining heavy metals, excluding Cd, were enriched in the heat exchangers and cyclone, where flue gas temperatures ranged from 580 to 220 °C. Under the waste acceptance criteria, all samples of process ash, excluding bed ash, exceeded the limits for nonhazardous landfill waste, as a result of high levels of water-soluble Cr. Water-soluble Cr indicated the presence of Cr(VI), and its presence was confirmed using X-ray absorption near-edge structure spectroscopy (18.4% to 38.3%). The source of Cr was identified as the bedding material (wood shavings), and its conversion to Cr(VI) was temperature-dependent and could be facilitated by the high alkali content found in poultry litter. en_US
dc.language.iso eng en_US
dc.publisher American Chemical Society en_US
dc.relation.ispartofseries Energy and Fuels;28 (8), pp. 5158-5166
dc.rights This document is the unedited author's version of a submitted work that was subsequently accepted for publication in Fuels and Energy. Copyright © American Chemical Society after peer-review. To access the edidited final published version see en_US
dc.subject poultry litter en_US
dc.subject heavy metals en_US
dc.subject fluidised bed combustion en_US
dc.subject chromium en_US
dc.title Behavior of heavy metals during fluidized bed combustion of poultry litter en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1021/ef500981k
dc.contributor.sponsor Department of Agriculture, Fisheries and Food en_US
dc.contributor.sponsor IRC en_US
dc.contributor.sponsor Danish Council for Strategic Research "Cleanwaste" en_US
dc.contributor.sponsor Australian Research Council en_US
dc.relation.projectid RSF 07 559 en_US
dc.relation.projectid J. nr. 2104-09-0056 en_US
dc.relation.projectid LE0989759 en_US
dc.relation.projectid LE110100174 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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