Effect of electric impulse for improved energy generation in mediatorless dual chamber microbial fuel cell through electroevolution of Escherichia coli

2016 ◽  
Vol 79 ◽  
pp. 796-801 ◽  
Author(s):  
Arpita Nandy ◽  
Vikash Kumar ◽  
Patit P. Kundu
Keyword(s):  
Escherichia Coli ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Energy Generation ◽  
Dual Chamber ◽  
Electric Impulse

scholarly journals Energy generation from domestic wastewater using sandwich dual-chamber microbial fuel cell with mesh current collector cathode

2016 ◽  
Vol 13 (9) ◽  
pp. 2209-2218 ◽  
Author(s):  
J. A. Adeniran ◽  
R. Huberts ◽  
J. J. De-Koker ◽  
O. A. Arotiba ◽  
O. F. Olorundare ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Current Collector ◽  
Domestic Wastewater ◽  
Energy Generation ◽  
Dual Chamber

Effect of Different Mediators on Bio-Energy Generation and Palm Oil Mill Effluent Treatment in an Air-Cathode Microbial Fuel Cell-Adsorption System

2021 ◽  
Vol 411 ◽  
pp. 67-78
Author(s):  
Ivy Ai Wei Tan ◽  
J.R. Selvanathan ◽  
M.O. Abdullah ◽  
N. Abdul Wahab ◽  
D. Kanakaraju
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Palm Oil ◽  
Oxygen Demand ◽  
Energy Generation ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Adsorption System ◽  
Air Cathode ◽  
Palm Oil Mill

Palm oil mill effluent (POME) discharged without treatment into watercourses can pollute the water source. Microbial fuel cell (MFC) has gained high attention as a green technology of converting organic wastewater into bio-energy. As an approach to overcome the limitations of the existing POME treatment methods, air-cathode MFC-Adsorption system is introduced as an innovative technology to treat POME and generate bio-electricity simultaneously. However, the use of conventional MFC with proton exchange membrane in large scale applications is restricted by the high cost and low power generation. Addition of mediator in MFC is essential in order to increase the electron transfer efficiency, hence enhancing the system performance. This study therefore aims to investigate the effect of different type of mediators i.e. congo red (CR), crystal violet (CV) and methylene blue (MB) on the performance of an affordable air-cathode MFC-Adsorption system made from earthen pot with POME as the substrate. The addition of different mediators altered the pH of the MFC-Adsorption system, in which more alkaline system showed better performance. The voltage generated in the system with CR, CV and MB mediator was 120.58 mV, 168.63 mV and 189.25 mV whereas the current generated was 2.41 mA, 3.37 mA and 3.79 mA, respectively. The power density of 290.79 mW/m3, 568.72 mW/m3 and 716.31 mW/m3 was produced in the MFC-Adsorption system with CR, CV and MB mediator, respectively. The highest POME treatment efficiency was achieved in MFC-Adsorption system with MB mediator, which resulted in biochemical oxygen demand, chemical oxygen demand, total suspended solids, turbidity and ammoniacal nitrogen removal of 75.3%, 84.8%, 91.5%, 86.1% and 23.31%, respectively. Overall, the air-cathode MFC-Adsorption system with addition of MB mediator was feasible for POME treatment and simultaneous bio-energy generation.

scholarly journals Generating Electricity Using Microbial Fuel Cell Powered by Benthic Mud Collected From Two Locations in Akure, Nigeria

2017 ◽  
Vol 13 (18) ◽  
pp. 242
Author(s):  
Adegunloye D. V ◽  
Olotu T. M
Keyword(s):  
Escherichia Coli ◽  
Bacillus Subtilis ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Lactobacillus Plantarum ◽  
Salt Bridge ◽  
Peak Voltage ◽  
River Bed ◽  
Bacteria And Fungi ◽  
Set Up

Generating electricity using microbial fuel cell powered by benthic mud collected from two locations in Akure was carried out. The locations were Riverbed of FUTA and Apatapiti area of Akure. This was achieved by building anode and cathode containers connected together by a salt bridge and an external circuit was made to transfer the electrons from the anode to the cathode. Bacteria and fungi were isolated from the benthic mud for eight days using standard microbiological techniques. Lactobacillus plantarum, Escherichia coli, Bacillus subtilis, Enterobacter aerogenes, Trichoderma sp, Mucor sp and Alterania sp; Lactobacillus plantarum, Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Myrothecium sp and Geotrichum candidum were bacteria and fungi isolated from the benthic mud of Apatapiti area and Riverbed of Futa, Akure respectively. This was used for the generation of electricity using unsterilized mud sample and the control setup was sterilized mud from same source. The set-up was monitored every 24hrous to determine the voltage and current generated. The pH, concentration and temperature were measured. The temperature remains constant throughout the experiment. The set-up were operated at a normal temperature of 27oC and 29oC for Riverbed of FUTA and Apatapiti area of Akure respectively. The peak voltage was between 182.5V and 192.5V and current produced from the main set-up was between 0.3A to 0.53A for Futa river bed while for Apatapiti area of Akure the peak voltage and current were 192.5V and 0.3A respectively. Higher microbial population, current and voltage were observed to be generated in River bed of Futa than Apatapiti area. The difference in the voltage and current and the control set-up shows that anaerobic microorganisms are capable of producing electricity from microbial fuel cell under appropriate conditions.

scholarly journals Bioelectricity production from fermentable household waste in a dual-chamber microbial fuel cell

2018 ◽  
Vol 36 (11) ◽  
pp. 1037-1042 ◽  
Author(s):  
D Chatzikonstantinou ◽  
A Tremouli ◽  
K Papadopoulou ◽  
G Kanellos ◽  
I Lampropoulos ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Operating Time ◽  
Oxygen Demand ◽  
Household Waste ◽  
Dual Chamber ◽  
Cell Potential ◽  
Food Residue ◽  
Optimal Value ◽  
Residue Biomass

In this study, the use of a dual-chamber microbial fuel cell for the production of bioelectricity from a food residue biomass (FORBI) product was investigated. Food residue biomass was produced by drying and shredding the pre-sorted fermentable fraction of household food waste collected door-to-door in the Municipality of Halandri, Athens, Greece. Different organic loads of food residue biomass expressed as chemical oxygen demand (COD) were examined (0.7, 0.9, 1.4, 2.8, 6 and 14 g COD L−1, respectively). It was observed that an increase of the initial concentration of the final extract resulted in a corresponding increase in the operating time. The microbial fuel cell potential increased from 33.3 mV to 46 mV as the concentration was increased from 0.7 to 14 g COD L−1. The best performance in terms of maximum power density (29.6 mW m−2) corresponding to a current density of 88 mA m−2 was observed for 6 g COD L−1. Setting the external resistance at its optimal value (Rext = 2 kΩ) as determined by polarisation experiments, Pyield drastically increased to 13.7 and 17.3 Joule (g FORBI)−1 in two consecutive cycles. The results demonstrate that readily biodegradable substrates, such as food residue biomass, can be effectively used for enhanced bioelectricity harvesting in a microbial fuel cell.

A novel mediatorless microbial fuel cell based on direct biocatalysis of Escherichia coli

2006 ◽  
pp. 2257 ◽  
Author(s):  
Tian Zhang ◽  
Changzheng Cui ◽  
Shengli Chen ◽  
Xinping Ai ◽  
Hanxi Yang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Fuel Cell ◽  
Microbial Fuel Cell
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