Use of thermogravimetry for single characterisation of samples of the composting process from sewage sludge

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Title: Use of thermogravimetry for single characterisation of samples of the composting process from sewage sludge
Authors: Muñoz Fernández, María | Gómez-Rico, María Francisca | Font, Rafael
Research Group/s: Residuos, Pirólisis y Combustión
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química
Keywords: Thermogravimetry | Compost | Sewage sludge | Heterogeneity
Knowledge Area: Ingeniería Química
Issue Date: Sep-2013
Publisher: Elsevier
Citation: Journal of Analytical and Applied Pyrolysis. 2013, 103: 261-267. doi:10.1016/j.jaap.2013.01.001
Abstract: Pyrolysis and combustion of different samples from a sewage sludge composting tunnel plant were studied by thermogravimetry. Two series of samples were analyzed: initially, 8 samples were taken at 8 different points from different stages of the process; later, 5 samples from different points at the end of the composting tunnel were taken. The experiments were carried out at 10 °C/min, in N2 atmosphere and N2:O2 4:1 atmosphere. The results were discussed to analyze the heterogeneity of the samples. In addition, the compositions of the samples taken for the analysis were deduced using the decomposition kinetics as correlation of weight loss vs. time. The fractions considered were sewage sludge, straw and sawdust. The compositions deduced were compared with the toxicity concentration of dioxins, in order to analyze the possible variations of toxicity determined.
Sponsor: Support of this work is from CTQ 2008-05520 project of the Spanish Ministry of Science and Innovation; Prometeo2009/043/FEDER of the Valencian Community of Spain.
ISSN: 0165-2370 (Print) | 1873-250X (Online)
DOI: 10.1016/j.jaap.2013.01.001
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
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Appears in Collections:INV - REMAN - Artículos de Revistas

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