Evaluation of the predictive capacity of alert indicators for the detection of failures in biogas production
Keywords:
Early warning indicators, Acidification, AlkalinityAbstract
This work evaluated the capacity of early warning indicators (EW) for the detection of a programmed failure in a biogas production process. The failure consisted of a gradual variation in the composition of the substrate. The EW evaluated were volatile acid degrees (VFA), total alkalinity (TA), partial (PA), and intermediate (IA), the ratios of VFA/TA and IA/PA, and the methane content in the biogas. The results show that methane content, TA, VFA, and VFA/TA could not predict the day of process failure. Unlike IA/PA, which managed to predict the failure 5 and 2 days in advance, and CH4/CO2, which had an alarm time of 14 days, which provides considerable time for decision-making in biogas production processes.
References
Astals, S., Batstone, D. J., Mata-Alvarez, J., Jensen, P. D. (2014). Identification of synergistic impacts during anaerobic co-digestion of organic wastes. Bioresource Technology, 169, 421–427. https://doi.org/10.1016/j.biortech.2014.07.024
De Francisci, D., Kougias, P. G., Treu, L., Campanaro, S., Angelidaki, I. (2015). Microbial diversity and dynamicity of biogas reactors due to radical changes of feedstock composition. Bioresource Technology, 176, 56–64. https://doi.org/10.1016/j.biortech.2014.10.126
Li, D., Chen, L., Liu, X., Mei, Z., Ren, H., Cao, Q., Yan, Z. (2017). Instability mechanisms and early warning indicators for mesophilic anaerobic digestion of vegetable waste. Bioresource Technology, 245(13), 90–97. https://doi.org/10.1016/j.biortech.2017.07.098
Liu, Y., Whitman, W. B. (2008). Metabolic, phylogenetic, and ecological diversity of the methanogenic archaea. Annals of the New York Academy of Sciences, 1125, 171–189. https://doi.org/10.1196/annals.1419.019
Wu, D., Li, L., Zhao, X., Peng, Y., Yang, P., Peng, X. (2019). Anaerobic digestion: A review on process monitoring. Renewable and Sustainable Energy Reviews, 103, 1–12. https://doi.org/10.1016/j.rser.2018.12.039
Wu, Y., Kovalovszki, A., Pan, J., Lin, C., Liu, H., Duan, N., Angelidaki, I. (2019). Early warning indicators for mesophilic anaerobic digestion of corn stalk: A combined experimental and simulation approach. Biotechnology for Biofuels, 12(1), 1–16. https://doi.org/10.1186/s13068-019-1442-7
Zou, J., Nie, E., Lü, F., Peng, W., Zhang, H., He, P.(2022). Screening of early warning indicators for full-scale dry anaerobic digestion of household kitchen waste. Environmental Research, 214(4), 114136. https://doi.org/10.1016/j.envres.2022.114136
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Luis Miramontes Martínez
This work is licensed under a Creative Commons Attribution 4.0 International License.
