Optimization of the methane production in batch anaerobic digestion of maize straw by adjustment of total solid and substrate-to-inoculum ratio based on kinetics
Keywords:
maize straw, dry anaerobic digestion, methane production, microbial characteristics, kinetic modelAbstract
Anaerobic digestion (AD) operating under conditions of organic overload stress typically exacerbates the potential for process instability, thereby resulting in significant economic and ecological ramifications. In this investigation, an augmented substrate-to-inoculum ratio (S/I) along with varying total solid content (TS) levels was employed to replicate diverse organic loadings, utilizing maize straw and cattle manure. The findings reveal that a moderate augmentation in S/I and TS proves advantageous in augmenting methane yield, while an excessive substrate loading diminishes methane yield, hampers the kinetics of methane production, and even induces severe process instability. Kinetic study also displayed the variation of the model parameters for the first-order model, the modified Gompertze model, and the transfer function model. Both the modified Gompertze model and transfer function model exhibited the same environmental stress trend. Thus, both the increase in particulate content and the increase in S/I had a substantial effect on the substrate conversion rate to methane. Microbial analysis demonstrates the dominant influence of Firmicutes and Methanosarcina under different organic loading stresses. From both a kinetic and a microbiological point of view, this work provides novel insights into the fundamental processes that regulate anaerobic digestion (AD) under varying loading stress. Furthermore, it has significant implications for improving the operating efficiency of AD, which is a significant benefit. Keywords: maize straw, dry anaerobic digestion, methane production, microbial characteristics, kinetic model DOI: 10.25165/j.ijabe.20241701.8434 Citation: Zhen F, Xing T, Li L H, Sun Y M, Zhang H Q. Optimization of the methane production in batch anaerobic digestion of maize straw by adjustment of total solid and substrate-to-inoculum ratio based on kinetics. Int J Agric & Biol Eng, 2024; 17(1): 225-231.References
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[3] Sun H, Wang E Z, Li X, Cui X, Guo J B, Dong R J. Potential biomethane production from crop residues in China: Contributions to carbon neutrality. Renewable and Sustainable Energy Reviews, 2021; 148: 111360.
[4] Feng J Y, Li Y Q, Zhang E L, Zhang J Y, Wang W, He Y F, et al. Solid-state co-digestion of NaOH-Pretreated mL straw and chicken manure under mesophilic condition. Waste Biomass Valorization, 2018; 9: 1027–1035.
[5] Xu W Y, Fu S F, Yang Z M, Lu J, Guo R B. Improved methane production from corn straw by microaerobic pretreatment with a pure bacteria system, Bioresource Technology. 2018; 259: 18–23.
[6] Cui Q, Liu Y, Ali T, Gao J, Chen H. Economic and climate impacts of reducing China’s renewable electricity curtailment: A comparison between CGE models with alternative nesting structures of electricity. Energy Economics, 2020; 91: 104892.
[7] Rocamora I, Wagland S T, Villa R, Simpson E W, Fernandez O, Bajon-Fernandez Y. Dry anaerobic digestion of organic waste: A review of operational parameters and their impact on process performance. Bioresour. Technol, 2020; 299: 122681.
[8] Li G, Hao Y H, Yang T L, Xiao W B, Pan M M, Huo S H, et al. Enhancing bioenergy production from the raw and defatted microalgal biomass using wastewater as the cultivation medium. Bioengineering, 2022; 9: 637.
[9] Li G, Hu R C, Wang N, Yang T L, Xu F Z, Li J L, et al. Cultivation of microalgae in adjusted wastewater to enhance biofuel production and reduce environmental impact: Pyrolysis performances and life cycle assessment. Journal Cleaner Prod, 2022; 355: 131768.
[10] Li G, Zhang J, Li H, Hu R C, Yao X L, Liu Y, et al. Towards high-quality biodiesel production from microalgae using original and anaerobically-digested livestock wastewater. Chemosphere, 2021; 273: 128578.
[11] Pellera F-M, Gidarakos E. Effect of substrate to inoculum ratio and inoculum type on the biochemical methane potential of solid agroindustrial waste. Journal of Environmental Chemical Engineering, 2016; 4(3): 3217–3229.
[12] Alzate M E, Munoz R, Rogalla F, Fdz-Polanco F, Perez-Elvira S I. Biochemical methane potential of microalgae: Influence of substrate to inoculum ratio, biomass concentration and pretreatment. Bioresour Technol, 2012; 123: 488–494.
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[14] Abbassi-Guendouz A, Brockmann D, Trably E, Dumas C, Delgenes J-P, Steyer J-P, et al. Total solids content drives high solid anaerobic digestion via mass transfer limitation. Bioresour Technol, 2012; 111: 55–61.
[15] Gonzalez-Fernandez C, Garcia-Encina P A. Impact of substrate to inoculum ratio in anaerobic digestion of swine slurry. Biomass and Bioenergy, 2009; 33(8): 1065–1069.
[16] Kang X H, Lin R C, Li L H, Wu B T, Deng C, O’Shea R, et al. Assessment of pretreatment and digestion temperature on anaerobic digestion of whiskey byproducts and microbial taxonomy. Energy Convers Manage, 2021; 243: 114331.
[17] Monlau F, Sambusiti C, Barakat A, Guo X M, Latrille E, Trably E, et al. Predictive Models of Biohydrogen and Biomethane Production Based on the Compositional and Structural Features of Lignocellulosic Materials. Environ Sci Technol, 2012; 46(21): 12217–12225.
[18] Zhen G Y, Lu X Q, Kobayashi T, Li Y-Y, Xu K Q, Zhao Y C. Mesophilic anaerobic co-digestion of waste activated sludge and Egeria densa: Performance assessment and kinetic analysis. Applied Energy, 2015; 148: 78–86.
[19] Li L, He Q, Zhao X F, Wu D, Wang X M, Peng X Y. Anaerobic digestion of food waste: Correlation of kinetic parameters with operational conditions and process performance. Biochem Eng J, 2018; 130: 1–9.
[20] Zhang W Q, Wei Q Y, Wu S B, Qi D D, Li W, Zuo Z, et al. Batch anaerobic co-digestion of pig manure with dewatered sewage sludge under mesophilic conditions. App. Energy, 2014; 128: 175–183.
[21] Browne J D, Murphy J D. Assessment of the resource associated with biomethane from food waste. App. Energy, 2013; 104: 170–177.
[22] Li Y Q, Feng L, Zhang R H, He Y F, Liu X Y, Xiao X, et al. Influence of inoculum source and pre-incubation on bio-methane potential of chicken manure and corn stover. App. Biochem. Biotechnol., 2013; 171(1): 117–127.
[23] Li D, Liu S C, Mi L, Li Z D, Yuan Y X, Yan Z Y, et al. Effects of feedstock ratio and organic loading rate on the anaerobic mesophilic co-digestion of rice straw and cow manure. Bioresour Technol, 2015; 189: 319–326.
[24] Zamanzadeh M, Hagen L H, Svensson K, Linjordet R, Horn S J. Anaerobic digestion of food waste - Effect of recirculation and temperature on performance and microbiology. Water Res, 2016; 96: 246–254.
[25] Chen H, Zeng K J, Xie J, Xu X B, Li X, Xue G, et al. Comprehending the impact of berberine on anaerobic digestion of waste activated sludge. Environmental Rearch, 2024; 240: 117590.
[26] Qiu S, Zhang X C, Xia W H, Li Z M, Wang L F, Chen Z P, et al. Effect of extreme pH conditions on methanogenesis: Methanogen metabolism and community structure. Science of Total Environment, 2023; 877: 162702.
[27] Yang J C, Lan X, Zhou T T, Zhang Q G, Zhang Z Y, Li P F, et al. Effects of cold isostatic press pretreatment of rice straw on microstructure and efficiency of anaerobic digestion for methane production. Bioresour Technol, 2023; 386: 129488.
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Published
2024-03-31
How to Cite
Zhen, F., Xing, T., Li, L., Sun, Y., & Zhang, H. (2024). Optimization of the methane production in batch anaerobic digestion of maize straw by adjustment of total solid and substrate-to-inoculum ratio based on kinetics. International Journal of Agricultural and Biological Engineering, 17(1), 225–231. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/8434
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Renewable Energy and Material Systems
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