Selective Enrichment of Electrochemically Active Bacteria in Microbial Fuel Cell By Pre-treatment of Mixed Anaerobic Sludge to Be Used as Inoculum

2016 ◽  
pp. 305-317
Author(s):  
B. R. Tiwari ◽  
M. M. Ghangrekar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Anaerobic Sludge ◽  
Selective Enrichment ◽  
Electrochemically Active ◽  
Electrochemically Active Bacteria ◽  
Active Bacteria ◽  
Pre Treatment

scholarly journals COMPARATIVE PERFORMANCE OF CARBOXYMETHYL CELLULOSE AS SUBSTRATE FOR ELECTRICITY GENERATION IN MICROBIAL FUEL CELL: A REVIEW

2021 ◽  
Vol 51 (3) ◽  
pp. 217-222
Author(s):  
Nazish Manzoor ◽  
Zulqarnain ◽  
M. Anees ◽  
M. Qasim ◽  
F. Anjum
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Carboxymethyl Cellulose ◽  
Electricity Generation ◽  
Cellulase Activity ◽  
Comparative Performance ◽  
Degrading Bacteria ◽  
Electrochemically Active ◽  
Electrochemically Active Bacteria ◽  
Active Bacteria

Due to the global energy crisis in the world and no proper utilization of renewable and non-renewable resources, different experimental design approaches and substrates have been employed to produce bioelectricity in an MFC. The major substrate that has been tried to focus in this review paper is carboxymethyl cellulose (CMC). Carboxymethyl cellulose is an important factor in Microbial fuel cell with great importance in industry. No known enzyme is directly involved in the oxidation/reduction of CMC, however, carboxymethyl cellulases attack, specifically CMC. Moreover, our knowledge on electrochemically active bacteria is inadequate. Although, knowledge about electrochemically active bacteria is inadequate, distinct cellulose degrading bacteria have been isolated for their higher cellulase activity. Similarly, pure bacterial cultures and co-cultures have been extensively used in degrading CMC for power and electricity generation. CMC concentration and effect of different substitution factors also play an important role in voltage generation. Different ways to make enzymatic electrode for current production using CMC fed reactor were also discussed in this study. This review gives an overview about the current developments of CMC being used as substrate in MFCs and encourages to develop more efficient processes for improved bioelectricity production in MFCs.

Relative effect of bioaugmentation with electrochemically active and non-active bacteria on bioelectrogenesis in microbial fuel cell

2013 ◽  
Vol 146 ◽  
pp. 696-703 ◽  
Author(s):  
S. Veer Raghavulu ◽  
J. Annie Modestra ◽  
K. Amulya ◽  
C. Nagendranatha Reddy ◽  
S. Venkata Mohan
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Relative Effect ◽  
Electrochemically Active ◽  
Active Bacteria

scholarly journals Pre-treatment of anodic inoculum with nitroethane to improve performance of a microbial fuel cell

2018 ◽  
Vol 77 (10) ◽  
pp. 2491-2496 ◽  
Author(s):  
P. P. Rajesh ◽  
Md. T. Noori ◽  
M. M. Ghangrekar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Coulombic Efficiency ◽  
Production Capacity ◽  
Linear Sweep Voltammetry ◽  
Anode Surface ◽  
Anaerobic Sludge ◽  
Operating Voltage ◽  
Methanogenic Activity ◽  
Pre Treatment

Abstract Methanogenic substrate loss is reported to be a major bottleneck in microbial fuel cell (MFC), which significantly reduces the power production capacity and coulombic efficiency (CE) of this system. Nitroethane is found to be a potent inhibitor of hydrogenotrophic methanogens in rumen fermentation process. Influence of nitroethane pre-treated sewage sludge inoculum on suppressing the methanogenic activity and enhancing the electrogenesis in MFC was evaluated. MFC inoculated with nitroethane pre-treated anodic inoculum demonstrated a maximum operating voltage of 541 mV, with CE and maximum volumetric power density of 39.85% and 20.5 W/m3, respectively. Linear sweep voltammetry indicated a higher electron discharge on the anode surface due to enhancement of electrogenic activity while suppressing methanogenic activity. A 63% reduction in specific methanogenic activity was observed in anaerobic sludge pre-treated with nitroethane, emphasizing the significance of this pre-treatment for suppressing methanogenesis and its utility for enhancing electricity generation in MFC.

scholarly journals Electricity generation from living plants using microbial fuel cells

2018 ◽  
Vol 7 (4.5) ◽  
pp. 534 ◽  
Author(s):  
Borker Mohnish ◽  
Suchithra T.V
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Plant Species ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Setaria Faberi ◽  
Electrochemically Active ◽  
Electrochemically Active Bacteria ◽  
Plant Microbial Fuel Cell

The need for a sustainable source of energy has catered engineers to discover and develop a biological battery known as Plant Microbial fuel cell. This biological battery operates with the help of electrochemically active bacteria in presence of CO2, sunlight and water. This technique is gaining importance in the field of bioelectricity as it produces clean in-situ energy from living plants without the need to harvest the plant species. Research on these cells have led to the development of various models. One such plant species Setaria faberi was tested for its compatibility in sediment plant microbial fuel cell. Power density of 4.6mW/m2 was obtained when it was tested with cocopeat as a hydroponic media. This paper highlights the suitability of S. faberi in producing sustainable bioelectricity with a hydroponic media.  

Electricity Production from Dual Chambers Microbial Fuel Cell Fed with Chicken Manure-Wastewater

2015 ◽  
Vol 3 (1) ◽  
pp. 9-18
Author(s):  
Ali J. Jaeel
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Chicken Manure ◽  
Electricity Production ◽  
Anaerobic Sludge ◽  
Livestock Wastewater ◽  
Graphite Electrodes ◽  
Reliable Source ◽  
Current Densities ◽  
Resistance Value

Chicken manure wastewaters are increasingly being considered a valuable resource of organic compounds. Screened chicken manure was evaluated as a representative solid organic waste. In this study, electricity generation from livestock wastewater (chicken manure) was investigated in a continuous mediator-less horizontal flow microbial fuel cell with graphite electrodes and a selective type of membrane separating the anodic and cathodic compartments of MFC from each other. The performance of MFC was evaluated to livestock wastewater using aged anaerobic sludge. Results revealed that COD and BOD removal efficiencies were up to 88% and 82%, respectively. At an external resistance value of 150 Ω, a maximum power and current densities of 278 m.W/m2 and 683 mA/m2, respectively were obtained, hence MFC utilizing livestock wastewater would be a sustainable and reliable source of bio-energy generation .

Ultrasonic pre-treatment of Bacillus velezensis for improved electrogenic response in a single chambered microbial fuel cell

3 Biotech ◽  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Aman Dongre ◽  
Rakesh Kumar Sharma ◽  
Monika Sogani ◽  
Nitesh Kumar Poddar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Bacillus Velezensis ◽  
Pre Treatment
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