Mesure in situ avec un dispositif de flux de melanges gazeux de l'activite reductrice de l'acetylene par les nodosites racinaires du soja: influence de l'acetylene et de l'oxygene

18 ref.International audienc

Methane as a Substrate for Energy Generation Using Microbial Fuel Cells

Methane (CH 4 ) is a well-known and abundant feedstock for natural gas, and is readily available from various sources. In thermal plants, the CH 4 generated from anthropogenic sources is converted into electrical energy via combustion. Microbial fuel cell (MFC) technology has proven to be an efficient strategy for the biological conversion of a many substrates, including biogas (CH 4 ), to electricity. MFC technology uses gaseous substrate along with an enriched and selective microbial consortium. Predominantly, methanotrophs and electrochemically active Geobacter were utilized in a syntrophic association on the anode of an MFC. This review focuses on the exploitation of CH 4 as a substrate for bioelectrogenesis via MFCs.This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2018H1D3A2001746, 2013M3A6A8073184). This work was supported by the Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (20153030091450). This research was supported by 2017 KU Brain Pool of Konkuk University.Scopu

In situ open-flow assay of acetylene reduction activity by soybean root nodules: influence of acetylene and oxygen

International audienc

Energetics of symbiotic nitrogen fixation: the relationships between oxygen, malate and hydrogen

International audienc

Bioelectrogenesis from Raw Algal Biomass Through Microbial Fuel Cells: Effect of Acetate as Co-substrate

Algae are autotrophic organisms that are widespread in water bodies. Increased pollution in water bodies leads to eutrophication. However, algae growing in lakes undergoing eutrophication could be utilized towards the generation of added-value bio-electricity using microbial fuel cells (MFCs). In the present study, two methods of electricity generation using raw algae (RA) and RA + acetate (AC) as co-substrate were analyzed in single chamber air cathode MFCs. MFCs supplemented with RA and RA + AC clearly showed higher power density, greater current generation, and improved COD (chemical oxygen demand) removal, which demonstrated the feasibility of using AC as substrate for MFC. The MFC–RA + AC (0.48 mA) generated 28% higher current relative to that generated by MFC with RA alone. Notably, the maximum power densities generated by MFC–RA and MFC–RA + AC were 230 and 410 mW/m2, respectively. MFC–RA and MFC–RA + AC exhibited TCOD (total chemical oxygen reduction) removal values of 77% and 86.6%, respectively. Despite the high influent TCOD (758 mg/l) concentration, the MFC–RA + AC exhibited an 8.5% higher COD removal relative to that of MFC–RA (525 mg/l). Our current findings demonstrated effective energy generation using algae biomass with a co-substrate.This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2018H1D3A2001746, 2015R1D1A1A01061279, 2013M3A6A8073184). This research was supported by 2017 KU Brain Pool of Konkuk University.Scopu

Metabolisme de l'hydrogene et energetique de la fixation symbiotique de l'azote chez le soja

National audienc

Limitations energetiques de la fixation symbiotique de l'azote: metabolisme de l'hydrogene et inhibition par l'ion nitrique

National audienc