scholarly journals Comparing Natural and Artificially Designed Bacterial Consortia as Biosensing Elements for Rapid Non- Specific Detection of Organic Pollutant through Microbial Fuel Cell

2017 ◽  
pp. 2836-2851 ◽  
Author(s):  
Maira Anam ◽  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Organic Pollutant ◽  
Specific Detection ◽  
Bacterial Consortia

EFFECT OF PETROLUME REFINERY WASTEWATER ON PLANT GROWTH IN INTEGRATED MICROBIAL FUEL CELL-CONSTRUCTED WETLANDS SYSTEMS

2020 ◽  
Vol 51 (4) ◽  
pp. 1239-1248
Author(s):  
Hussain & Ismail
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Organic Pollutant ◽  
Oxygen Demand ◽  
Organic Content ◽  
Pollutant Removal ◽  
Refinery Wastewater ◽  
Batch Mode ◽  
Petroleum Refinery Wastewater ◽  
Healthy Growth

Three identically designed microbial fuel cell-constructed wetland (MFC-CW) systems were constructed and setup in this study for simultaneous biotreatment of petroleum refinery wastewater (PRW) and bioelectricity generation. MFC-CW1 and  MFC-CW2 were planted with Canna indica, and Phragmites australis, respectively. MFC-CW3 was unplanted and considered as the control. These three systems were operated simultaneously in a batch mode for two cycles to evaluate  the effect of PRW biotreatment on the growth and development of the selected plants and the potential of generated bioelectricity as well.  The operation period for each cycle was 8 days.  Results demonstrated that maximum removal efficiency of the organic content represented as chemical oxygen demand (COD) were 98.75%, 97.67%, and 97.83% observed in MFC-CW1, MFC-CW2, and MFC-CW3, respectively, whereby, the highest power generation were 19.86, 19.04, and  18.7 mW/m2, respectively. On the other hand, both types of plants exhibited notable growth and new sprouts appearance. The potential convergence of the results in the three MFC-CWs, and the healthy growth of both types of plants clearly and potentially indicated that the dominant mechanism of organic pollutant removal was via biodegradation process by the anodic biofilm in the MFC rather than being removed by phytoremediation process.

Municipal Solid Waste Leachate Treatment Using Microbial Fuel Cell

2012 ◽  
Vol 610-613 ◽  
pp. 2361-2366
Author(s):  
Li Fang Deng ◽  
Hao Ran Yuan ◽  
Hong Yu Huang ◽  
Yong Chen
Keyword(s):  
Fuel Cell ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Microbial Fuel Cell ◽  
Organic Pollutant ◽  
Ammonia Nitrogen ◽  
High Concentration ◽  
Leachate Treatment ◽  
Anode Carbon ◽  
Waste Leachate

Leachate is a high concentration organic wastewater, and microbial fuel cell (MFC) is capable of decomposing and treating organic pollutants directly. Single-chamber MFC using landfill leachate as anolyte was built to get rid of BOD and ammonia-nitrogen organic pollutant in leachate. The use of MFC led to the treatment of the biodegradable organic pollutant of municipal solid waste leachate and the production of electricity. The biofilm was detected on the MFC anode carbon felt, the voltage and power output were achieved 292.7± 5 mV and 2375.1mW.m-2. The suitable running time was about 10 days, when the BOD and ammonia-nitrogen removal efficiencies were achieved about 93.0% and 84.1 %, respectively.

scholarly journals Characterization of anodic biofilm bacterial communities and performance evaluation of a mediator-free microbial fuel cell

2019 ◽  
Vol 25 (6) ◽  
pp. 862-870 ◽  
Author(s):  
Momen Salah Kamel ◽  
Mohamed Hemida Abd-Alla ◽  
Usama M. Abdul-Raouf
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Open Circuit ◽  
Klebsiella Pneumonia ◽  
Bacterial Consortia ◽  
16S Rna ◽  
And Performance ◽  
16S Rna Gene Sequencing ◽  
Anodic Biofilm

This study investigated the bioelectrical performance of a single-chamber microbial fuel cell (SCMFC) fueled with acetate as the electron donor and inoculated with municipal solid waste rejected fractions (MSWRFs) as a microbial inoculum. The molecular characterization of the bacterial community structures of the anodic biofilm was conducted based on 16s RNA gene sequencing. The results indicated that the highest open-circuit voltage (OCV) was 797 mV and the system had a maximum power density of 134.5 mW/m<sup>2</sup> at a stable current density of 328 mA/m<sup>2</sup>. The microbial fuel cell’s (MFC) columbic efficiency (CE) was 55% at a maximum substrate degradation rate of about 86.6% based on COD removal efficiency. The molecular analysis of the anodic bacterial isolates indicated that the phylogenetic bacterial mixture was dominated by seven strains with similarity percentage above 99% for each strain: <i>Enterococcus faecalis, Clostridium butyricum, Bacillus sp., Bacillus subterranous, Enterobacter celoaca,</i> <i>Klebsiella pneumonia,</i> and <i>Escherichia coli</i>. These results suggested that MSWRFs bacterial consortia have a moderate symbiotic structure as indicated by electrons release in parallel with substrate decomposition.

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 .

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