Enhanced Power Density and Decolorization of Air-cathode Single-chamber Microbial Fuel Cells with Microfiltration Membranes

2011 ◽  
Author(s):  
Bin Hou ◽  
Jian Sun ◽  
Yong-You Hu
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Air Cathode ◽  
Single Chamber ◽  
Microfiltration Membranes

scholarly journals Rumen Inoculum Enhances Cathode Performance in Single-Chamber Air-Cathode Microbial Fuel Cells

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 379
Author(s):  
Ignacio T. Vargas ◽  
Natalia Tapia ◽  
John M. Regan
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Rumen Fluid ◽  
Oxygen Demand ◽  
Air Cathode ◽  
Single Chamber ◽  
Higher Power ◽  
Mixed Microbial Community ◽  
Current Production ◽  
Soluble Chemical Oxygen Demand

During the last decade, bioprospecting for electrochemically active bacteria has included the search for new sources of inoculum for microbial fuel cells (MFCs). However, concerning power and current production, a Geobacter-dominated mixed microbial community derived from a wastewater inoculum remains the standard. On the other hand, cathode performance is still one of the main limitations for MFCs, and the enrichment of a beneficial cathodic biofilm emerges as an alternative to increase its performance. Glucose-fed air-cathode reactors inoculated with a rumen-fluid enrichment and wastewater showed higher power densities and soluble chemical oxygen demand (sCOD) removal (Pmax = 824.5 mWm−2; ΔsCOD = 96.1%) than reactors inoculated only with wastewater (Pmax = 634.1 mWm−2; ΔsCOD = 91.7%). Identical anode but different cathode potentials suggest that differences in performance were due to the cathode. Pyrosequencing analysis showed no significant differences between the anodic community structures derived from both inocula but increased relative abundances of Azoarcus and Victivallis species in the cathodic rumen enrichment. Results suggest that this rarely used inoculum for single-chamber MFCs contributed to cathodic biofilm improvements with no anodic biofilm effects.

Effect of nitrate on the performance of single chamber air cathode microbial fuel cells

2008 ◽  
Vol 42 (19) ◽  
pp. 4743-4750 ◽  
Author(s):  
Chontisa Sukkasem ◽  
Shoutao Xu ◽  
Sunhwa Park ◽  
Piyarat Boonsawang ◽  
Hong Liu
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Air Cathode ◽  
Single Chamber

Electrochemical analysis of separators used in single-chamber, air-cathode microbial fuel cells

2013 ◽  
Vol 89 ◽  
pp. 45-51 ◽  
Author(s):  
Bin Wei ◽  
Justin C. Tokash ◽  
Fang Zhang ◽  
Younggy Kim ◽  
Bruce E. Logan
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Electrochemical Analysis ◽  
Air Cathode ◽  
Single Chamber

scholarly journals Investigating Air-Cathode Microbial Fuel Cells Performance under Different Serially and Parallelly Connected Configurations

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5116
Author(s):  
Mariagiovanna Minutillo ◽  
Simona Di Micco ◽  
Paolo Di Giorgio ◽  
Giovanni Erme ◽  
Elio Jannelli
Keyword(s):  
Fuel Cells ◽  
Energy Density ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Scaling Up ◽  
Point Of View ◽  
Air Cathode ◽  
In Series ◽  
Valid Solution ◽  
Parallel Series

Microbial fuel cells (MFCs) have recently attracted more attention in the context of sustainable energy production. They can be considered as a future solution for the treatment of organic wastes and the production of bioelectricity. However, the low output voltage and the low produced electricity limit their applications as energy supply systems. The scaling up of MFCs both by developing bigger reactors with multiple electrodes and by connecting several cells in stacked configurations is a valid solution for improving these performances. In this paper, the scaling up of a single air-cathode microbial fuel cell with an internal volume of 28 mL, has been studied to estimate how its performance can be improved (1523 mW/m3, at 0.139 mA). Four stacked configurations and a multi-electrode unit have been designed, developed, and tested. The stacked MFCs consist of 4 reactors (28 mL × 4) that are connected in series, parallel, series/parallel, and parallel/series modes. The multi-electrode unit consists of a bigger reactor (253 mL) with 4 anodes and 4 cathodes. The performance analysis has point ed out that the multi-electrode configuration shows the lowest performances in terms of volumetric power density equal to 471 mW/m3 at 0.345 mA and volumetric energy density of 624.2 Wh/m3. The stacked parallel/series configuration assures both the highest volumetric power density, equal to 2451 mW/m3 (274.6 µW) at 0.524 mA and the highest volumetric energy density, equal to 2742.0 Wh/m3. These results allow affirming that to increase the electric power output of MFCs, the stacked configuration is the optimal strategy from designing point of view.

scholarly journals Penentuan Rasio Bahan Sampah Organik Optimum Terhadap Kinerja Compost Solid Phase Microbial Fuel Cells (CSMFCs)

2019 ◽  
Vol 16 (1) ◽  
pp. 24 ◽  
Author(s):  
Meishinta Ariyanti ◽  
Ganjar Samudro ◽  
Dwi Siwi Handayani
Keyword(s):  
Energy Efficiency ◽  
Fuel Cells ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Solid Phase ◽  
Coulombic Efficiency ◽  
Single Chamber

Compost Solid Phase Microbial Fuel Cells (CSMFCs) merupakan teknologi pengomposan yang diintegrasikan dengan sistem MFCs untuk menghasilkan kompos dan produksi biolistrik dari sampah padat organik. Penelitian ini bertujuan untuk meningkatkan kinerja CSMFCs melalui penerapan perlakuan optimal dari penelitian terdahulu seperti, kadar air 60%, volume sampah 2/3 reaktor, dan penambahan bioaktivator. CSMFCs dalam penelitian ini dilakukan dalam kondisi batch menggunakan reaktor tipe single chamber dan dual anode graphene. Sampah daun dan sampah sisa makanan digunakan sebagai substrat dalam studi ini. Bahan sampah tersebut divariasikan berdasarkan rasio bahan (sampah daun:sampah sisa makanan) yaitu 100:0, 0:100, dan 50:50. Hasil penelitian ini menunjukan kinerja CSMFCs yang optimum terdapat pada variasi sampah campuran keduanya dengan rasio bahan 50:50. Variasi ini dapat menghasilkan kompos yang baik, yaitu memenuhi SNI 19-7030-2004, serta produksi listrik yang cukup tinggi yaitu power density 41,6 mW/m2, coulombic efficiency 0,647% dan energy efficiency 0,0127%.

Effect of nitrate on electricity generation in single-chamber air cathode microbial fuel cells

2018 ◽  
Vol 337 ◽  
pp. 661-670 ◽  
Author(s):  
Haobin Huang ◽  
Shaoan Cheng ◽  
Jiawei Yang ◽  
Chaochao Li ◽  
Yi Sun ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Air Cathode ◽  
Single Chamber

Effects of hydraulic pressure on the performance of single chamber air-cathode microbial fuel cells

2014 ◽  
Vol 56 ◽  
pp. 264-270 ◽  
Author(s):  
Shaoan Cheng ◽  
Weifeng Liu ◽  
Jian Guo ◽  
Dan Sun ◽  
Bin Pan ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Hydraulic Pressure ◽  
Air Cathode ◽  
Single Chamber
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