Article Title: Study of a biogas digester adapted to the climate of the Boeny region of Madagascar
Volume Number: 1
Issue: 1
Year: 2025
Article Type: Original Article
Author Names: Jaolalaina Arisoa Andrianaivoarivelo¹*, Lovasoa Rakotomalala², Falinirina Andrianjatovo¹, Théodore Totozafiny², Zely Arivelo Randriamanantany¹
Page Number: 11-28
Affiliations: ¹Department of Physics, Faculty of Sciences, University of Antananarivo, Madagascar; ²Physics and Applications Program, University of Mahajanga, Madagascar; *Correspondence: Dr. Jaolalaina Arisoa Rakotomalala, Department of Physics, Faculty of Sciences, Uni-versity of Antananarivo, Madagascar, Email Address: jaolalaina@gmail.com
Keywords: Digester; Biogas; Digestate; subtract; Anaerobic digester; Fixed-dome digester; Continu-ous-flow digester; Biogas reactor; Biodigester design; Digester efficiency; Thermophilic di-gestion; Mesophilic digester
Abstract: This study of a biogas digester adapted to the climate of the Boeny region of Madagascar serves to analyze the feasibility of converting organic matter into biogas. It describes and analyzes the operation of digesters according to the types of waste available. The results show significant economic and environmental benefits for local communities. This article also offers recommendations for optimizing these systems, emphasizing the importance of their integration into sustainable development initiatives in this region. This research aims to manage and recover organic waste in order to protect the environment from pollu-tion and reduce deforestation. We chose to build a fixed-dome digester for its durability. The study shows the effectiveness of this type depending on the region’s climate. The production is approximately 0.032 cubic meters of gas per 1 kg of organic waste. The manufacturing cost of this digester is approximately $48.
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