Enhancing Biogas Purification Efficiency Through Microbial Intervention: A Comparative Analysis of Carbon Dioxide and Hydrogen Sulfide Removal in Anaerobic Digestion Systems
文献类型： 会议论文
第一作者： Antonio-Abdu Sami M. Magomnang
作者： Antonio-Abdu Sami M. Magomnang 1 ; Richard Jayson Varela 1 ; Dianne Mae M. Asiñero 1 ; Ma. Leona Maye P. Gemina 1 ; Dionel O. Albina 2 ; Clint Django C. Pacana 2 ; Valentina A. Pallo 2 ; Jonathan H. Perez 2 ; Greg M. Cubio 2 ;
作者机构： 1.Department of Mechanical Engineering, Center for Biomass Energy, University of Science and Technology of Southern Philippines, Cagayan de Oro City, Philippines
2.Center for Biomass Energy, University of Science and Technology of Southern Philippines, Cagayan de Oro City, Philippines
关键词： Methane;Waste management;Purification;Impurities;Hydrogen;Production;Carbon dioxide;Biogas;Inductors;Slurries
会议名称： International Conference on Sustainable Energy: Energy Transition and Net-Zero Climate Future
主办单位：
页码： 1-8
摘要： Biogas purification remains a significant challenge in renewable energy production. This study investigates the application of Effective Microorganisms (EM) for biogas refinement, focusing on the removal of carbon dioxide (CO2) and hydrogen sulfide (H2S). A novel experimental setup utilizing polyethylene terephthalate (PET) bottles was designed to produce and purify biogas. The system incorporated an anaerobic digester, raw biogas storage, and purification components including shock dose and maintenance dose reactors containing EM solutions at various concentrations (1%, 5%, and 10%). Over a 60-day period, biogas production and purification were monitored. Results showed that the 10% EM setup consistently demonstrated the highest removal efficiency for CO2 and H2S, followed by the 5% and 1% EM setups. The control setup using water scrubbing exhibited decreasing efficiency over time. While the control setup achieved the highest methane concentration in purified biogas (78.94%), the EM setups showed superior performance in removing impurities. The study highlights the tradeoff between impurity removal and methane retention, emphasizing the need to balance these factors for optimal biogas quality and energy efficiency. The EM setups also influenced methane production patterns, with peak production occurring after an initial 13-day growth phase. This research contributes to our understanding of microbial interventions in biogas refinement and their implications for improved biogas production and purification. The findings could have significant implications for developing sustainable, cost-effective, and environmentally friendly biogas refinement technologies, particularly for small-scale and household applications.
分类号： tp3
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