101631 20240410085607.0 doi 10.1016/j.jaap.2021.105078 sideral 123969 ART-2021-123969 eng Adánez-Rubio, I. (orcid)0000-0002-9579-2551 Exploratory study of polycyclic aromatic hydrocarbons occurrence and distribution in manure pyrolysis products 2021 Access copy available to the general public Unrestricted The occurrence and distribution of polycyclic aromatic hydrocarbons (PAH) have been investigated in the products derived from the pyrolysis of pig manure at low temperatures (<550 °C) in a fixed bed reactor. The focus was on the sixteen PAH identified as priority pollutants by the US Environment Protection Agency (EPA). The pyrolysis does not generate a significant additional amount of EPA-PAH to that existing in the original pig manure, under the operational conditions studied (<550 °C). While the total EPA-PAH yield does not indicate a notable dependence on the pyrolysis temperature, the EPA-PAH distribution among the three pig manure pyrolysis products as well as the speciation changed significantly with the temperature. The proportion of heavy PAH species increased as the temperature increased. The initial EPA-PAH in the manure samples plays a significant role in both their concentration and speciation in the biochar. The relationship of the EPA-PAH concentration and speciation in the biochar with those of the raw material was corroborated with a cow manure sample and the biochars obtained from its pyrolysis. For this reason, feedstocks with low EPA-PAH concentrations are recommended in order to obtain biochars with concentrations below the maximum allowed threshold established for their use as a soil enhancer by the International Biochar Initiative (IBI) and in the European Biochar Certificate. info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-17R info:eu-repo/grantAgreement/ES/MCIU-FEDER/RTI2018-098856-B-100 info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2016-76419-R info:eu-repo/grantAgreement/ES/MINECO/FJCI-2015-23862 info:eu-repo/grantAgreement/ES/MINECO/RTI2015-095556-B-I00 info:eu-repo/grantAgreement/ES/UZ/CUD2017-TEC-01 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.437 2021 CHEMISTRY, ANALYTICAL 12 / 87 = 0.138 2021 Q1 T1 ENGINEERING, CHEMICAL 27 / 142 = 0.19 2021 Q1 T1 ENERGY & FUELS 44 / 119 = 0.37 2021 Q2 T2 1.11 2021 Fuel Technology 2021 Q1 Analytical Chemistry 2021 Q1 9.1 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Fonts, I. (orcid)0000-0001-7035-1955 Blas, P. de Viteri, F. (orcid)0000-0002-1458-8920 Gea, G. Universidad de Zaragoza (orcid)0000-0002-4364-2535 Alzueta, M.U. Universidad de Zaragoza (orcid)0000-0003-4679-5761 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 5005 790 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Tecnologi. Medio Ambiente 155 (2021), 105078 [9 pp.] J. anal. appl. pyrolysis JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 0165-2370 484065 http://zaguan.unizar.es/record/101631/files/texto_completo.pdf Postprint 1785777 http://zaguan.unizar.es/record/101631/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:101631 articulos driver 2024-04-10-08:44:06 ARTICLE