Determination of Particle Size for Optimum Biogas Production from Ouagadougou Municipal Organic Solid Waste

Mahamadi Nikiema (), Narcis Barsan (), Amidou S. Ouili, Emilian Mosnegutu, K. Marius Somda, Ynoussa Maiga, Compaoré Cheik Omar Tidiane, Cheik A. T. Ouattara, Valentin Nedeff and Aboubakar S. Ouattara
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Mahamadi Nikiema: Higher Institute of Sustainable Development (ISDD), University of Yembila Abdoulaye Toguyeni, Fada N’Gourma 75000, Burkina Faso
Narcis Barsan: Department of Environmental Engineering and Mechanical Engineering, Vasile Alecsandri University of Bacau, 157, Calea Marasesti, 600115 Bacau, Romania
Amidou S. Ouili: Research Center in Biological Food and Nutritional Sciences (CRSBAN), Joseph KI-ZERBO University, 03 BP 7131, Ouagadougou 10000, Burkina Faso
Emilian Mosnegutu: Department of Environmental Engineering and Mechanical Engineering, Vasile Alecsandri University of Bacau, 157, Calea Marasesti, 600115 Bacau, Romania
K. Marius Somda: Research Center in Biological Food and Nutritional Sciences (CRSBAN), Joseph KI-ZERBO University, 03 BP 7131, Ouagadougou 10000, Burkina Faso
Ynoussa Maiga: Higher Institute of Sustainable Development (ISDD), University of Yembila Abdoulaye Toguyeni, Fada N’Gourma 75000, Burkina Faso
Compaoré Cheik Omar Tidiane: Research Center in Biological Food and Nutritional Sciences (CRSBAN), Joseph KI-ZERBO University, 03 BP 7131, Ouagadougou 10000, Burkina Faso
Cheik A. T. Ouattara: Research Center in Biological Food and Nutritional Sciences (CRSBAN), Joseph KI-ZERBO University, 03 BP 7131, Ouagadougou 10000, Burkina Faso
Valentin Nedeff: Department of Environmental Engineering and Mechanical Engineering, Vasile Alecsandri University of Bacau, 157, Calea Marasesti, 600115 Bacau, Romania
Aboubakar S. Ouattara: Research Center in Biological Food and Nutritional Sciences (CRSBAN), Joseph KI-ZERBO University, 03 BP 7131, Ouagadougou 10000, Burkina Faso

Sustainability, 2024, vol. 16, issue 22, 1-13

Abstract: Anaerobic digestion’s contribution to sustainable development is well established. It is a sustainable production process that enables energy to be saved and produced and efficient pollution control processes to be implemented, thereby contributing to the sustainable development of our societies. Optimizing biogas yields from the anaerobic digestion of municipal organic waste is crucial for maximum energy recovery and has become an important topic of interest. Substrate particle size is a key process parameter in biogas production and precedes other pretreatment methods for most organic materials. This study aims to evaluate the impact of particle size and incubation period on biomethane production from municipal solid waste. Sampling of municipal solid waste was carried out in waste pre-collection in the city of Ouagadougou, Burkina Faso. Waste characterization showed lignocellulolytic green waste (grass, dead leaves), waste composed of fruit and leafy vegetables and leftover food waste. TableCurve 3D v4.0 software was used to develop an optimal mathematical model to correlate particle size and biomethane productivity to describe optimal production parameters. Particle sizes ranging from 2000 to 63 µm high biogas production values, specifically 385.33 and 201.25 L·kg −1 of MSV. PCA analysis clearly showed a high correlation between particle size and biogas production, with optimum production recorded for size 250 µm with a biomethane production value of 187.53 L·kg −1 of MSV. The average relative errors and RMSE for CH 4 content were improved by 24.31% and 44.97%, respectively. The data calculated with the developed mathematical model and the existing experimental data were compared and permutated to validate the model. This work enabled the identification of a mathematical model that describes the correlations between the input parameters of an experiment and the monitored parameters, as well as the definition of the particle size that allows for the optimal production of biomethane.

Keywords: municipal organic solid waste; particle size; TableCurve 3D; optimizing biomethane (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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