Optimisation Du Rendement Energétique Des Procédés De Méthanisation A Travers Une Approche De Modélisation Mathématique

S. Ndriananja ANDRIAMANANTENA, Manjato RASOANAIVO, O. Achille RAVONINJATOVO, V. Nantenaina RARIVOSON, L. Jean RASOANAIVO, R. Notiavina RANDRIAMAHEFA

Abstract


This research work develops a stabilized Gompertz model to enhance the prediction and optimization of biogas production during the anaerobic digestion of market waste. The proposed approach establishes quantitative links between kinetic parameters (G₀, Rₘ, λ) and substrate characteristics such as dry matter content and the C/N ratio, both identified as key determinants of biogas performance. Experimental results obtained from four types of market waste confirm the model’s ability to capture the main kinetic trends, despite minor deviations linked to temperature variations during digestion. Furthermore, a substrate optimization strategy demonstrates an increase of more than 25% in cumulative biogas production compared with single-substrate digestion. Overall, this research highlights the relevance of kinetic modeling for improving biogas production and guiding the energetic valorization of heterogeneous organic waste streams.

Keywords


Anaerobic digestion; Biogas; Gompertz model; Market waste; optimization

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References


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DOI: http://dx.doi.org/10.52155/ijpsat.v55.1.7692

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