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Improvement of Renewable Bioenergy Production in Microbial Fuel Cells with Saponin Supplementation

Journal of Sustainable Bioenergy Systems 2021年第2期11卷 82-93页

作者： skylar choi Yongjin Park Immanuel H. Anaborne Jin Sik Song Ji Woo Han So Hyun Jeon Jaewoo Kim James Kim Jinkwon Lee Paul S. Chung Horace Greeley High School Chappaqua NY USA Deerfield Academy Deerfield MA USA Oakton High School Vienna VA USA School of Arts & Sciences University of Virginia Charlottesville VA USA School of Arts & Sciences Emory University Atlanta GA USA Bachelor of Science Villanova University Villanova PA USA College of Letters & Sciences University of California Los Angeles Los Angeles CA USA School of Arts & Sciences University of Michigan Ann Arbor MI USA Division of Biological Sciences Revelle College University of California San Diego CA USA Fuzbien Technology Institute Rockville MD USA

Microbial fuel cell (MFC) is one of renewable biofuel production technology that directly converts biomass to electricity. Cellulosic biomass is particularly attractive renewable resources for its low cost and abundance and neutral carbon balance. However, methanogenesis remains as a major factor limiting MFC performance. The current study reports that saponin addition at 0.05% w/v dose to anolyte in MFCs inhibited methanogenesis and improves power generation and cellulose fermentation. Mediator-less two chamber H-type MFCs were prepared using rumen fluid as anode inocula at 20% v/v of anolyte to convert finely ground pine tree (Avicel) at 2%, w/v to electricity. Saponin was added to the anode of MFC at 0.005% or 0.05% v/v dosage for treatment. MFC power and current across an external resistor were measured daily for 10d. On d10, collected gases from anode compartment were measured for total gas volume and analyzed for gas composition on gas chromatography. Supplementation of saponin to MFC at 0.005% did not have any effects on electricity generation or biogas production and composition. Saponin at 0.05% dose reduced 10% of methane prod

关键词： Microbial Fuel Cells Saponin Bioenergy

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