Mathematical Modeling for Evaluating the Sustainability of Biogas Generation through Anaerobic Digestion of Livestock Waste
Abilmazhinov Y. Shakerkhan K. Meshechkin V. Shayakhmetov Y. Nurgaliyev N. Suychinov A.
April 2023MDPI
Sustainability (Switzerland)
2023#15Issue 7
The paper investigates the mathematical modeling of anaerobic fermentation for the utilization of animal wastes. It analyzes various approaches to the mathematical modeling of anaerobic digestion processes. However, most of the models previously proposed do not take into account a number of key parameters such as the levels of micro and macronutrientls (such as K, Na, Ca, Mg, Mo, etc.), values of volatile fatty acids, C/N ratio, pH levels, extent of grinding, moisture, and others. This paper proposes a new mathematical model of anaerobic fermentation under industrial scale conditions. The model was developed on the basis of regression analysis and correlation. It found empirical relationships between biogas yield and 26 different parameters. These parameters are measured by appropriate biosensors in industrial production. Some of them have more significant influence on the fermentation process than others. Overall, the developed mathematical model has the potential to provide useful insights into biogas production and can be used to optimize anaerobic fermentation processes.
anaerobic digestion , animal waste , biogas , correlation , modelling , regression analysis
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Department of Mechanical Engineering, Shakarim University of Semey, Semey, 071412, Kazakhstan
Department of Technical Sciences and Informatics, Alikhan Bokeikhan University, Mangilik El 11, Semey, 071400, Kazakhstan
Institute of Fundamental Sciences, Kemerovo State University, Krasnaya 6, Kemerovo, 650000, Russian Federation
Kazakh Research Institute of Processing and Food Industry (Semey Branch), Semey, 071410, Kazakhstan
Department of Mechanical Engineering
Department of Technical Sciences and Informatics
Institute of Fundamental Sciences
Kazakh Research Institute of Processing and Food Industry (Semey Branch)
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