Ultra-low power pH sensor powered by microbial fuel cells

Author(s):  
Nathaniel Brochu ◽  
Lingling Gong ◽  
Jesse Greener ◽  
Amine Miled
Author(s):  
Nancy González-Gamboa ◽  
Raúl Tapia-Tussell ◽  
Sathish Kumar Kamaraj ◽  
David Valdés-Lozano ◽  
Jorge Domínguez-Maldonado ◽  
...  

Fuel ◽  
2019 ◽  
Vol 255 ◽  
pp. 115682 ◽  
Author(s):  
Smita S. Kumar ◽  
Vivek Kumar ◽  
Ritesh Kumar ◽  
Sandeep K. Malyan ◽  
Arivalagan Pugazhendhi

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 94171-94183 ◽  
Author(s):  
Atieh Zabihallahpoor ◽  
Mostafa Rahimnejad ◽  
Farid Talebnia

SMFCs are a bioelectricity production technology for low power applications. Recent advances in SMFCs are investigated to enhance their performance. Power improvement and organic matter reduction in SMFCs enlarge their range of applications.


2011 ◽  
Vol 324 ◽  
pp. 457-460 ◽  
Author(s):  
Nicolas Degrenne ◽  
Francois Buret ◽  
Bruno Allard ◽  
Jean Michel Monier

Microbial fuel cells (MFCs) harness the natural metabolisms of microbes to produce electrical power from almost any kind of organic matter. In addition to the low power densities (about 1mW for a 1-liter reactor), MFCs are presently built with expensive membrane and electrodes. The payback time of MFCs is therefore very long (evaluated to 25000 years for our lab prototype). Progresses in designing low-cost MFCs are necessary before conceiving large scale energy production.


Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4393
Author(s):  
Nathaniel Brochu ◽  
Benjamin Belanger-Huot ◽  
Dmytro Humeniuk ◽  
Lingling Gong ◽  
Mehran Abbaszadeh Amirdehi ◽  
...  

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 kΩ 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.


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