Bacteria Energy Recovery System Using Natural Soil Bacteria in Microbial Fuel Cells

Nathaniel Brochu, Benjamin Belanger-Huot, Dmytro Humeniuk, Lingling Gong, Mehran Abbaszadeh Amirdehi, Jesse Greener and Amine Miled
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Nathaniel Brochu: LABioTRON Bioengineering Research Laboratory, Electrical and Computer Engineering Department at of Science and Engineering, Université Laval, Adrien-Pouliot Build., 1065 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Benjamin Belanger-Huot: LABioTRON Bioengineering Research Laboratory, Electrical and Computer Engineering Department at of Science and Engineering, Université Laval, Adrien-Pouliot Build., 1065 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Dmytro Humeniuk: LABioTRON Bioengineering Research Laboratory, Electrical and Computer Engineering Department at of Science and Engineering, Université Laval, Adrien-Pouliot Build., 1065 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Lingling Gong: Chemistry Department, Faculty of Science and Engineering, Université Laval, Alexandre-Vachon Build., 1045 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Mehran Abbaszadeh Amirdehi: Chemistry Department, Faculty of Science and Engineering, Université Laval, Alexandre-Vachon Build., 1045 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Jesse Greener: Chemistry Department, Faculty of Science and Engineering, Université Laval, Alexandre-Vachon Build., 1045 Av. de la Médecine, Québec, QC G1V 0A6, Canada
Amine Miled: LABioTRON Bioengineering Research Laboratory, Electrical and Computer Engineering Department at of Science and Engineering, Université Laval, Adrien-Pouliot Build., 1065 Av. de la Médecine, Québec, QC G1V 0A6, Canada

Energies, 2021, vol. 14, issue 15, 1-12

Abstract: This paper describes a two-cycle bacteria energy recovery system (BERS) to power two embedded sensors: an ultra-low portable pH sensor and a sound sensor. The designed unit can handle up to seven microbial fuel cells (MFCs) to charge a super-capacitor. This allows the BERS to provide a constant 0.14 mW without further electrical components for signal conditioning. The two cycles were driven with a 100 k ? load and a 10 Hz frequency. The BERS is also self-powered with an integrated start-up unit to be self-activated when the MFCs charge the energy-storing unit after three days. The BERS powered pH sensor has an error below 5% at 25 ? C and is able to work continuously while being activated for 4 h. The performances of the pH and sound sensors were determined based on a compromise between accuracy and power consumption.

Keywords: microbial fuel cells; natural soild bacteria; energy recovery; green energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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