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Evaluating the effect of biochar addition on the anaerobic digestion of swine manure: application of Py-GC/MS

Gómez, Xiomar; Meredith, William; Fernández, Camino; Sánchez-García, Mario; Díez-Antolínez, Rebeca; Garzón-Santos, Jorge; Snape, Collin E.

Authors

Xiomar Gómez

Camino Fernández

Mario Sánchez-García

Rebeca Díez-Antolínez

Jorge Garzón-Santos

COLIN SNAPE COLIN.SNAPE@NOTTINGHAM.AC.UK
Professor of Chemical Technology & Chemical Eng



Abstract

The anaerobic digestion process of swine manure was studied when char was used as supplement for improving performance. The use of pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was proposed for assessing the organic matter degradation. The assessment on biogas production was carried out using samples of swine manure (SM) supplemented with char in one case and pre-treated by microwave irradiation in the other. This experimental set-up allows for the comparison of the biological degradation observed under these two different configurations and therefore aids in understanding the effect of char particles on the process. Results showed similar performance for both systems, with an average improvement of 39% being obtained in methane production when compared to the single digestion of SM. The analysis of digestate samples by Fourier transform infrared (FTIR) spectroscopy and Py-GC/MS showed improved degradation of proteins, with the Py-GC/MS technique also capable of identifying an increase in microbial-derived material when char was added, therefore highlighting the relevant role of carbon conductive particles on biological systems. Py-GC/MS along with the use of FTIR spectroscopy has proven to be useful tools when evaluating anaerobic digestion.

Citation

Gómez, X., Meredith, W., Fernández, C., Sánchez-García, M., Díez-Antolínez, R., Garzón-Santos, J., & Snape, C. E. (in press). Evaluating the effect of biochar addition on the anaerobic digestion of swine manure: application of Py-GC/MS. Environmental Science and Pollution Research, https://doi.org/10.1007/s11356-018-2644-4

Journal Article Type Article
Acceptance Date Jun 29, 2018
Online Publication Date Jun 29, 2018
Deposit Date Jul 11, 2018
Publicly Available Date Jun 30, 2019
Journal Environmental Science and Pollution Research
Print ISSN 0944-1344
Electronic ISSN 0944-1344
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1007/s11356-018-2644-4
Keywords Biochar ; PY-GC/MS ; FTIR ; Microwave pretreatment ; Anaerobic digestion
Public URL http://eprints.nottingham.ac.uk/id/eprint/52876
Publisher URL https://link.springer.com/article/10.1007%2Fs11356-018-2644-4
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
Additional Information This is a pre-print of an article published in Environmental Science and Pollution Research. The final authenticated version is available online at: https://doi.org/10.1007/s11356-018-2644-4

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Gomez et al 2018 pre-print.pdf (639 Kb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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