scholarly journals Influence of Aluminum Mesh electrode on Performance of a Microbial Fuel Cell (MFC)

2018 ◽  
Vol 7 (3.36) ◽  
pp. 176
Author(s):  
M. I. N. Ma’arof ◽  
Girma T. Chala ◽  
Saravanan A/l Ravichanthiran ◽  
. .
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Oxygen Supply ◽  
Fossil Fuel ◽  
Graphite Electrode ◽  
Negative Impact ◽  
Bacterial Activity ◽  
Rectangular Shape ◽  
Aluminum Mesh

Recently, various steps have been taken to utilize and develop renewable and sustainable form of energies due to the negative impact and dire limitation over continuous dependency on fossil fuel. This paper presents the effects of aluminium mesh on the performance of a MFC. Aluminium mesh with rectangular shape was used as the electrode and experiments were conducted with respect to various types of resistors. The amount of voltages and power density generated were determined. It was found that the increase in bacterial activities resulted in the increment of oxygen supply, therefore, the voltage generated also increased. In addition, the longevity of bacterial activity is dependent on the amount of catalyst. Moreover, it was observed that the performance of aluminium mesh electrode was smaller than that of graphite electrode.  

scholarly journals Effect of Nitrite and Nitrate Concentrations on the Performance of AFB-MFC Enriched with High-Strength Synthetic Wastewater

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jian-sheng Huang ◽  
Ping Yang ◽  
Chong-ming Li ◽  
Yong Guo ◽  
Bo Lai ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Nitrate Nitrogen ◽  
High Strength ◽  
Synthetic Wastewater ◽  
Flow Mode ◽  
Anode Chamber ◽  
Nitrite Nitrogen ◽  
One Year

In order to study the effect of nitrite and nitrate on the performance of microbial fuel cell, a system combining an anaerobic fluidized bed (AFB) and a microbial fuel cell (MFC) was employed for high-strength nitrogen-containing synthetic wastewater treatment. Before this study, the AFB-MFC had been used to treat high-strength organic wastewater for about one year in a continuous flow mode. The results showed that when the concentrations of nitrite nitrogen and nitrate nitrogen were increased from 1700 mg/L to 4045 mg/L and 545 mg/L to 1427 mg/L, respectively, the nitrite nitrogen and nitrate nitrogen removal efficiencies were both above 99%; the COD removal efficiency went up from 60.00% to 88.95%; the voltage was about 375 ± 15 mV while the power density was at 70 ± 5 mW/m2. However, when the concentrations of nitrite nitrogen and nitrate nitrogen were above 4045 mg/L and 1427 mg/L, respectively, the removal of nitrite nitrogen, nitrate nitrogen, COD, voltage, and power density were decreased to be 86%, 88%, 77%, 180 mV, and 17 mW/m2 when nitrite nitrogen and nitrate nitrogen were increased to 4265 mg/L and 1661 mg/L. In addition, the composition of biogas generated in the anode chamber was analyzed by a gas chromatograph. Nitrogen gas, methane, and carbon dioxide were obtained. The results indicated that denitrification happened in anode chamber.

scholarly journals Polarization and power density trends of a soil‐based microbial fuel cell treated with human urine

2020 ◽  
Vol 44 (7) ◽  
pp. 5968-5976 ◽  
Author(s):  
Meshack I. Simeon ◽  
Felix U. Asoiro ◽  
Mohamad Aliyu ◽  
Olayinka A. Raji ◽  
Ruth Freitag
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Human Urine

Effects of Electrode Materials on Electricity of Microbial Fuel Cell

2011 ◽  
Vol 183-185 ◽  
pp. 1549-1552
Author(s):  
Yong Juan Zhang ◽  
Zhang Min ◽  
Zheng Yang ◽  
Jing Yi Xie ◽  
Yong Feng Li
Keyword(s):  
Fuel Cell ◽  
Activated Sludge ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Electrode Material ◽  
Output Voltage ◽  
Electrode Materials ◽  
General Trend ◽  
Important Influence ◽  
Carbon Paper

The electrode material has the very important influence to the microbial fuel cell. The different electrode materials were studied for producing the electricity performance to MFC by the activated sludge as the substrate. The results indicated that the anode of graphite pole was 0.63 mW/cm2 of the area power density. The carbon paper was 60 (0.50mW/cm2). Carbon paper 90 was 0.23mW/cm2. Although having the biggest area power density, the general trend of the graphite pole is much lower than others and production of the electricity was not good. Even though the maximum of area power density of graphite pole, it might be the reason for increasing nutritive compound and elevation of temperature. The carbon paper 90 produce the area power density is the steadiest among three poles and its output voltage is a quite stable and low. MFC is excellent under carbon paper 90. The area power density had strong fluctuating scope, the power density is big and the overall value is high under carbon paper 60.

A high power density miniaturized microbial fuel cell having carbon nanotube anodes

2015 ◽  
Vol 273 ◽  
pp. 823-830 ◽  
Author(s):  
Hao Ren ◽  
Soonjae Pyo ◽  
Jae-Ik Lee ◽  
Tae-Jin Park ◽  
Forrest S. Gittleson ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
High Power ◽  
High Power Density

The Influence of Mediator Concentration on the Performance of Microbial Fuel Cell

2012 ◽  
Vol 512-515 ◽  
pp. 1520-1524 ◽  
Author(s):  
Yu Zhao ◽  
Xiao Bin Wang ◽  
Peng Li ◽  
Yan Ping Sun
Keyword(s):  
Methylene Blue ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Peak Power ◽  
Electrochemical Impedance ◽  
Peak Power Output ◽  
Anode Potential ◽  
High Concentration ◽  
Peak Power Density

Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), power density and anode potential are used to characterize the mediator microbial fuel cell at different methylene blue (MB) concentrations. At lower MB concentration between 9.98×10-3 mmol/L and 1.66×10-1 mmol/L, the increased power density is enabled by using high mediator concentrations. Higher peak power density of 159.6 mw/m2 is observed compared with the peak power density of 36.0 mw/m2. But MB at too high concentration is disadvantageous to the perform of MFC. At the MB concentration of 2.50×10-1 mmol/L, the peak power output is just 128.4 mw/m2, which is lower than 159.6 mw/m2 at MB concentration of 1.66×10-1 mmol/L.

Microbial fuel cell of Enterobacter cloacae: Effect of anodic pH microenvironment on current, power density, internal resistance and electrochemical losses

2011 ◽  
Vol 36 (17) ◽  
pp. 11093-11101 ◽  
Author(s):  
Vanita Roshan Nimje ◽  
Chien-Yen Chen ◽  
Chien-Cheng Chen ◽  
Ji-Yi Tsai ◽  
Hau-Ren Chen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Enterobacter Cloacae ◽  
Internal Resistance

scholarly journals Electricity Production from Organic Wastes Fermentation by Microbial Fuel Cell Process

2016 ◽  
Vol 855 ◽  
pp. 91-97
Author(s):  
Piyarut Moonsri ◽  
Wilaiporn Pongpian ◽  
Prayak Juantrong
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Current Density ◽  
Electricity Generation ◽  
Nutrient Content ◽  
Organic Wastes ◽  
Electricity Production ◽  
Copper Metal ◽  
Potential Density

This research studied the electricity production from organic wastes fermentation by microbial fuel cell by using a single chamber microbial fuel cell (SCMFC). Two sizes (1 L and 10 L) of simple SCMFC were fabricated by using a cylindrical plastic tank which anode compartment and cathode compartment separated by plastic plate with hole and covered with cotton fabric. The anode electrode contacted with organic matter and microorganisms where anaerobic reaction occurred to generate electron and proton. The electrons transferred through an external circuit while the protons diffused through the solution to the cathode electrode for reducing oxygen to water. From the study of the effect of different electrode types (carbon graphite rod, zinc metal, and copper metal) to the electricity generation using the SCMFC size 1 L in fermentation with synthetic sweetness solution (22%Brix) and the effective microorganism (EM) for 36 hrs, it found that the fuel cell which used copper metal as electrode produced electricity increasing over the times and has more efficient than the other electrode types. The study of electricity generation from organic waste fermentation by using the SCMFC size 10 L and using copper metal as electrode, the results showed that the fermentation of pineapple waste produced the current density, potential density, and power density higher than the fermentation of bananas and the fermentation of food garbage with EM. An optimal period of time for the production of electricity from this microbial fuel cell is the first five days of fermentation that the cells has voltage »500 mV, the current density 25.52 mA m-2, potential density 104.69 V m-2 and power density 12.59 mW m-2, and then decline over time five days (120 hrs). Moreover the bio-liquid fertilizer and the residues from the fermentation can be further used in agricultural because of the nutrient content (N, P, K), organic carbon and organic material contents available.

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