Bioelectrochemical remediation of phenanthrene in a microbial fuel cell using an anaerobic consortium enriched from a hydrocarbon-contaminated site

2020 ◽  
Vol 389 ◽  
pp. 121845 ◽  
Author(s):  
Mohita Sharma ◽  
Arpita Nandy ◽  
Nicole Taylor ◽  
Senthil Velan Venkatesan ◽  
Vinayaraj Ozhukil Kollath ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Contaminated Site ◽  
Anaerobic Consortium

Pre-Immobilization of Anaerobic Mixed Culture on Electrode of the Upflow Bio-Filter Circuit Microbial Fuel Cell

2017 ◽  
Vol 751 ◽  
pp. 431-434
Author(s):  
Chinnatad Sinprasertchok ◽  
Nuwong Chollacoop ◽  
Sumittra Charojrochkul ◽  
Korakot Sombatmankhong
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Smooth Surface ◽  
Activated Carbons ◽  
Treatment Plant ◽  
Extracellular Electron Transfer ◽  
Sem Images ◽  
Anaerobic Consortium ◽  
Microbial Attachment

Microbial extracellular electron transfer is a significant process in a microbial fuel cell (MFC). Owing to many potential losses in the electron transfer from microorganism to an electrode, a promotion of microbial attachment to electrode should be a productive solution to this difficulty of MFC. We also introduced here a prior colonization of microbes on electrode instead of a conventional immobilization which entirely occurred in a MFC reactor to expedite an attachment of microorganisms on the electrode surface. Coconut shell-based granular activated carbons (CGACs) used as one of the electrodes in the upflow bio-filter circuit microbial fuel cell were immersed in Lysogeny broth (LB) at pH 7 before an inoculation of anaerobic consortium from a wastewater treatment plant was performed. The immobilization was proceeded in an Erlenmeyer flask at 30°C with a shaking speed of 100 rpm throughout an experiment. CGACs taken from a collection of flasks were examined a surface with scanning electron microscopy (SEM). On the 3rd day of immobilization, SEM images showed that a colonization was seen obviously in large pores on CGAC surface. There were quite plentiful possessions on a rough surface while smooth surface not supporting well at the beginning got worse in attraction of bacteria on day 9 of immobilization. An addition of fresh LB into immobilization solution was conducted to improve the microbial attachment to smooth surface of CGAC. At 9 days after inoculation, the consequence of fresh medium filling did obviously raise the number of bacteria on the plain surface as opposed to earlier experiment.

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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