scholarly journals Effective Control of Bioelectricity Generation from a Microbial Fuel Cell by Logical Combinations of pH and Temperature

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Jiahuan Tang ◽  
Ting Liu ◽  
Yong Yuan ◽  
Li Zhuang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrical Power ◽  
Effective Control ◽  
Medium Temperature ◽  
Ph Changes ◽  
Voltage Output ◽  
Input Signals ◽  
Self Powered ◽  
Response To Temperature

In this study, a microbial fuel cell (MFC) with switchable power release is designed, which can be logically controlled by combinations of the most physiologically important parameters such as “temperature” and “pH.” Changes in voltage output in response to temperature and pH changes were significant in which voltage output decreased sharply when temperature was lowered from 30°C to 10°C or pH was decreased from 7.0 to 5.0. The switchability of the MFC comes from the microbial anode whose activity is affected by the combined medium temperature and pH. Changes in temperature and pH cause reversible activation-inactivation of the bioanode, thus affecting the activity of the entire MFC. With temperature and pH as input signals, an AND logic operation is constructed for the MFC whose power density is controlled. The developed system has the potential to meet the requirement of power supplies producing electrical power on-demand for self-powered biosensors or biomedical devices.

EXPERIMENTAL STUDY OF BIOELECTRICITY-MICROBIAL FUEL CELL FOR ELECTRICITY GENERATION: PERFORMANCE CHARACTERIZATION AND CAPACITY IMPROVEMENT

2017 ◽  
Vol 79 (5-2) ◽  
Author(s):  
Zul Hasrizal Bohari ◽  
Nur Asyhikin Azhari ◽  
Nuraina Nasuha Ab Rahman ◽  
Mohamad Faizal Baharom ◽  
Mohd Hafiz Jali ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrical Power ◽  
Electrical Energy ◽  
Sewage Water ◽  
Electricity Production ◽  
Sample Type ◽  
Series Of Experiments ◽  
The Right

Energy trending lately shown the need of new possible renewable energy. This paper studies about the capability and capacity generating of electricity by using Bio-electricity-Microbial Fuel Cell (Bio-MFC). Bio-MFC is the device that converts chemical energy to electrical energy by using microbes that exist in the sewage water. The energy contained in organic matter can be converted into useful electrical power. MFC can be operated by microbes that transfer electrons from anode to cathode for generating electricity. There are two major goals in this study. The first goal is to determine the performance characteristics of MFCs in this application. Specifically we investigate the relationship between the percentages of organic matter in a sample results in higher electricity production of MFCs power by that sample. As a result, the sewage (wastewater) chosen in the second series experiment because the sewage (wastewater) also produced the highest percentage of organic matter which is around 10%. Due to these, the higher percentage of organic matter corresponds to higher electricity production. The second goal is to determine the condition under which MFC work most efficiently to generating electricity. After get the best result of the combination for the electrode, which is combination of zinc and copper (900mV),the third series of experiments was coducted, that show the independent variable was in the ambient temperature. The reasons of these observations will be explained throughout the paper. The study proved that the electricity production of MFC can be increased by selecting the right condition of sample type, temperature and type of electrode. 

scholarly journals Air-breathing cathode self-powered supercapacitive microbial fuel cell with human urine as electrolyte

2020 ◽  
Vol 353 ◽  
pp. 136530
Author(s):  
Carlo Santoro ◽  
Xavier Alexis Walter ◽  
Francesca Soavi ◽  
John Greenman ◽  
Ioannis Ieropoulos
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Human Urine ◽  
Air Breathing ◽  
Self Powered

scholarly journals Cultivation of aerobic granular sludge in a microbial fuel cell

2020 ◽  
Vol 167 ◽  
pp. 01007
Author(s):  
You-xian Gao ◽  
Ping Yang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Granular Sludge ◽  
Ammonia Nitrogen ◽  
Aerobic Granular Sludge ◽  
Extracellular Polymers ◽  
Voltage Output ◽  
Increasing Trend ◽  
Pollutants Removal ◽  
Self Aggregation

Aerobic granular sludge(AGS) is a special biofilm formed by the self-aggregation of sludge material. In this study, AGS was cultivated in the biocathode of a continuous flow microbial fuel cell (MFC). During the formation of AGS, changes in sludge concentration, extracellular polymers (EPS), pollutants removal and power generation were examined. The results showed that, MLVSS kept above 5 g/L, the PS, PN and PN/PS of TB-EPS showed a gradually increasing trend, the removal efficiency of COD and ammonia nitrogen was 94.46% and 93.03%, respectively. A maximum voltage output of 350 mV was achieved.

scholarly journals Performance Analysis of Integrated Bio-Catalyst Microbial Fuel Cell with Different Asian Weather Conditions

2020 ◽  
Vol 9 (11) ◽  
pp. 99-103
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrical Power ◽  
Weather Conditions ◽  
Electrical Current ◽  
Energy Sources ◽  
Hybrid Energy ◽  
Proposed Model ◽  
The Impact

As the future energy generation, renewable energy as a cleaner energy is more targeted area of research. Microbial fuel cell (MFC) in hybrid energy sources, one can use wind, solar and MFC with its capability to use bio-catalytic and microorganisms to generate an electrical current. This research focuses on the impact of temperature on generation of energy for Maharashtra regions. The proposed framework presents the study about MFC bio-catalysts and its ability to produce electrical power. The proposed MFC model generates an optimum current by making use of bio-waste as the single electron donor. This paper presents impact of different weather temperatures on the power generation by proposed model.

scholarly journals Self-stratified and self-powered micro-supercapacitor integrated into a microbial fuel cell operating in human urine

2019 ◽  
Vol 307 ◽  
pp. 241-252 ◽  
Author(s):  
Carlo Santoro ◽  
Xavier Alexis Walter ◽  
Francesca Soavi ◽  
John Greenman ◽  
Ioannis Ieropoulos
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Human Urine ◽  
Self Powered

scholarly journals Electrical output of bryophyte microbial fuel cell systems is sufficient to power a radio or an environmental sensor

2016 ◽  
Vol 3 (10) ◽  
pp. 160249 ◽  
Author(s):  
Paolo Bombelli ◽  
Ross J. Dennis ◽  
Fabienne Felder ◽  
Matt B. Cooper ◽  
Durgaprasad Madras Rajaraman Iyer ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Output ◽  
Environmental Samples ◽  
Peak Power ◽  
Physcomitrella Patens ◽  
Electrical Power ◽  
Peak Power Output ◽  
Moss Species ◽  
Environmental Sensor

Plant microbial fuel cells are a recently developed technology that exploits photosynthesis in vascular plants by harnessing solar energy and generating electrical power. In this study, the model moss species Physcomitrella patens , and other environmental samples of mosses, have been used to develop a non-vascular bryophyte microbial fuel cell (bryoMFC). A novel three-dimensional anodic matrix was successfully created and characterized and was further tested in a bryoMFC to determine the capacity of mosses to generate electrical power. The importance of anodophilic microorganisms in the bryoMFC was also determined. It was found that the non-sterile bryoMFCs operated with P. patens delivered over an order of magnitude higher peak power output (2.6 ± 0.6 µW m −2 ) than bryoMFCs kept in near-sterile conditions (0.2 ± 0.1 µW m −2 ). These results confirm the importance of the microbial populations for delivering electrons to the anode in a bryoMFC. When the bryoMFCs were operated with environmental samples of moss (non-sterile) the peak power output reached 6.7 ± 0.6 mW m −2 . The bryoMFCs operated with environmental samples of moss were able to power a commercial radio receiver or an environmental sensor (LCD desktop weather station).

Self-Powered Ultrasensitive Nanowire Photodetector Driven by a Hybridized Microbial Fuel Cell

2012 ◽  
Vol 51 (26) ◽  
pp. 6443-6446 ◽  
Author(s):  
Qing Yang ◽  
Ying Liu ◽  
Zetang Li ◽  
Zongyin Yang ◽  
Xue Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Self Powered
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