Thermal and spectroscopic analysis of organic matter degradation and humification during composting of pig slurry in different scenarios

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Title: Thermal and spectroscopic analysis of organic matter degradation and humification during composting of pig slurry in different scenarios
Authors: Martín-Mata, Julio | Lahoz-Ramos, Claudia | Bustamante, María A. | Marhuenda Egea, Frutos Carlos | Moral, Raúl | Santos, André | Sáez, J.A. | Bernal Calderón, María Pilar
Research Group/s: Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES)
Center, Department or Service: Universidad de Alicante. Departamento de Agroquímica y Bioquímica
Keywords: Pig slurry | Organic matter | Compost | 13C-NMR | FT-IR | Thermal analysis
Knowledge Area: Bioquímica y Biología Molecular
Issue Date: Sep-2016
Publisher: Springer Berlin Heidelberg
Citation: Environmental Science and Pollution Research. 2016, 23(17): 17357-17369. doi:10.1007/s11356-016-6838-3
Abstract: In this work, different analytical techniques (thermal analysis, 13C cross-polarization magic angle spinning (CPMAS) NMR and Fourier transform infrared (FT-IR) spectroscopy) have been used to study the organic matter changes during the co-composting of pig slurry with cotton gin waste. To ensure the validity of the findings, the composting process was developed in different scenarios: under experimental pilot plant conditions, using the static pile system, and under real conditions on a pig farm, using the turning pile system. Also, the thermal stability index (R1) was determined before and after an extraction with water, to evaluate the effect of eliminating water-soluble inorganic salts on the thermal analysis. The results of the thermal methods showed the degradation of the most labile organic matter during composting; R1 increased during composting in all piles, without any influence of the presence of water-soluble inorganic ions in the sample. The NMR showed a decrease in the abundance of the carbohydrate molecules and an increase in the aliphatic materials during composting, due to a concentration effect. Also, FT-IR spectroscopy was a useful technique to study the trends of polysaccharides and nitrate, as indicators of organic matter transformations during composting.
Sponsor: The research was carried out in the framework of the EU Life+ project MANEV “Evaluation of manure management and treatment technology for environmental protection and sustainable livestock farming in Europe” (LIFE09 ENV/ES/000453) and of the People Programme (Marie Curie Actions) ReUseWaste of the European Union’s Seventh Framework Programme FP7/2007–2013/under REA grant agreement no. 289887.
ISSN: 0944-1344 (Print) | 1614-7499 (Online)
DOI: 10.1007/s11356-016-6838-3
Language: eng
Type: info:eu-repo/semantics/article
Rights: © Springer-Verlag Berlin Heidelberg 2016. The final publication is available at Springer via
Peer Review: si
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Appears in Collections:INV - GFES - Artículos de Revistas

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