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Waste Manag


Title:Characterization of solid and vapor products from thermochemical conversion of municipal solid waste woody fractions
Author(s):Ayiania M; Terrell E; Dunsmoor A; Carbajal-Gamarra FM; Garcia-Perez M;
Address:"Department of Biological Systems Engineering, Washington State University, L.J. Smith Hall, 1935 E. Grimes Way, Pullman, WA 99164-6120, United States. University of Brasilia, Faculty Gama, St. Leste Projecao A - Gama Leste, Brasilia, DF 72444-240, Brazil. Department of Biological Systems Engineering, Washington State University, L.J. Smith Hall, 1935 E. Grimes Way, Pullman, WA 99164-6120, United States. Electronic address: mgarcia-perez@wsu.edu"
Journal Title:Waste Manag
Year:2019
Volume:20181208
Issue:
Page Number:277 - 285
DOI: 10.1016/j.wasman.2018.11.042
ISSN/ISBN:1879-2456 (Electronic) 0956-053X (Linking)
Abstract:"The ever-increasing consumption of material goods with economic growth is resulting in an increasing generation of municipal solid waste (MSW) and the rapid filling of landfills. Fractions of municipal solid waste containing wood-based products have the potential to be used for the development of value added products. In this paper we produced and characterized biochar and pyrolysis vapors from municipal solid waste (MSW) woody fractions to demonstrate their suitability towards soil amendments. Carbonization work focused on compost overs, molded wood pallets, treated wood, sawmill cut ends, wood derived fuels, furniture, painted wood, plywood, oriented strand board and particle boards from Washington State recycling facilities. The goal of this research is to use these biochars as soil amendments; however, there are concerns with both the potential presence of condensed organic pollutants and trace metals. The presence of trace metals and polycyclic aromatic hydrocarbons (PAH) in all the biochars produced were examined. GC-MS analyses of liquid extracts did not reveal the presence of soluble PAH compounds. High concentrations of mercury (Hg) and arsenic (As) were found in the biochar made from painted wood and treated wood, respectively. Among the methods tested for the removal of trace metals, acid washing was found to be the most effective. The volatiles released from the analyzed MSW fractions were also analyzed in Py-GC-MS studies. Among these volatile compounds, many contained Cl, N, or S, which could be potential sources of pollution if the pyrolysis vapors are combusted"
Keywords:*Arsenic *Environmental Pollutants Soil Solid Waste Wood Biochar Municipal solid waste Polycyclic aromatic hydrocarbons Trace metals Volatile organic compounds;
Notes:"MedlineAyiania, Michael Terrell, Evan Dunsmoor, Alex Carbajal-Gamarra, Felix Martin Garcia-Perez, Manuel eng 2019/01/30 Waste Manag. 2019 Feb 1; 84:277-285. doi: 10.1016/j.wasman.2018.11.042. Epub 2018 Dec 8"

 
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