Possibility of using a lithotrophic iron-oxidizing microbial fuel cell as a biosensor for detecting iron and manganese in water samples

2015 ◽  
Vol 17 (10) ◽  
pp. 1806-1815 ◽  
Author(s):  
Phuong Hoang Nguyen Tran ◽  
Tha Thanh Thi Luong ◽  
Thuy Thu Thi Nguyen ◽  
Huy Quang Nguyen ◽  
Hop Van Duong ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Water Samples ◽  
Bacterial Consortium ◽  
Iron And Manganese

A lithotrophic iron-oxidizing microbial fuel cell containing an enriched iron-oxidizing bacterial consortium has the potential to be used as a biosensor for detecting iron in water samples.

scholarly journals Denitrification of water in a microbial fuel cell (MFC) using seawater bacteria

2017 ◽  
Author(s):  
Samrat MVV Naga ◽  
Rao K Kesava ◽  
Bernardo Ruggeri ◽  
Tonia Tommasi
Keyword(s):  
Organic Matter ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Water Samples ◽  
Bacterial Consortium ◽  
Bacterial Activity ◽  
Electricity Production ◽  
Buffering Agent ◽  
High Concentrations ◽  
First Time

AbstractThe sea contains various microbes which have an ability to reduce and oxidize substances like iron, sulphur, and nitrate. Most of these processes happen in the seawater, but can also be applied for purification of wastewater. In the present work, a consortium of seawater bacteria has been used for the first time in a microbial fuel cell to reduce nitrate in synthetic water samples and produce electricity by oxidizing organic matter. The concentrations ofandwere reduced to well below their permissible limits. Moreover, the growth of the bacterial consortium at cathode causes an increased electricity production in the cell because of the increased bacterial activity. The performance of the cell with a bicarbonate buffered solution (BBS) at the cathode was superior to that obtained with the commonly used phosphate buffered solution (PBS). As BBS is the natural buffering agent found in the sea, the use of BBS is eco-friendly. The same seawater bacterial consortium could be used at both the anode and the cathode, confirming their adaptability to different environments. Unfortunately, denitrification was accompanied by the generation of high concentrations ofat the anode and the cathode, probably because of the use of N2gas for sparging the anolyte. This aspect merits further investigation.

Performance and Bacterial Consortium of Microbial Fuel Cell Fed with Formate†

2008 ◽  
Vol 22 (1) ◽  
pp. 164-168 ◽  
Author(s):  
Phuc Thi Ha ◽  
Beomseok Tae ◽  
In Seop Chang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Bacterial Consortium

scholarly journals “Bacterial consortium from hydrothermal vent sediments presents electrogenic activity achieved under sulfate reducing conditions in a microbial fuel cell”

2020 ◽  
Vol 18 (2) ◽  
pp. 1189-1205
Author(s):  
Margarita Isabel Pérez-Díaz ◽  
Paola Zárate-Segura ◽  
Luis Antonio Bermeo-Fernández ◽  
Khemlal Nirmalkar ◽  
Fernando Bastida-González ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Hydrothermal Vent ◽  
Bacterial Consortium ◽  
Sulfate Reducing ◽  
Reducing Conditions

scholarly journals Identification and Characterization of Natural Habitats of Electrochemically Active Bacteria

2020 ◽  
pp. 19-25
Author(s):  
Yana Mersinkova ◽  
Hyusein Yemendzhiev
Keyword(s):  
Organic Matter ◽  
Fuel Cell ◽  
Dissolved Oxygen ◽  
Microbial Fuel Cell ◽  
Organic Matter Content ◽  
Anaerobic Respiration ◽  
Matter Content ◽  
Sediment Samples ◽  
Electrochemically Active ◽  
Iron And Manganese

Aims: This study aims to define criteria for the main physical and chemical characteristics of the environmental niches populated with electrochemically active microorganisms, capable to perform anaerobic respiration and potentially used in Bio-electrochemical systems such as Microbial Fuel Cells.   Study Design: In this study, specific parameters of the environment in water bodies (such as lakes, streams etc.) and their bottom layers are analyzed. The main parameters of interest include the concentration of dissolved oxygen in the water column, the organic matter content in the sediments and the presence of alternative electron acceptors (such as iron and manganese ions) to support anaerobic respiration. Sediment microorganisms are characterized for their electrochemical and biodegradation activity. Place and Duration of Study: The tested sediment and water samples were collected from "Poda" Protected Site located on the outfall of Lake “Uzungeren”, south of City of Burgas, Bulgaria. Methodology: The samples were analyzed employing TGA, ICP and microbiological methods focusing on chemical, physical and biological conditions available for anaerobic respiration in this ecological niche. Results: The results show very low concentrations of dissolved oxygen (from 1.4 to 2.2 mg/dm3 in the various locations). The conductivity and the pH values ​​measured were relatively high and the mean values obtained are 5230 μS/cm and 8.2 respectively. The sediment samples demonstrated very high organic matter content (22.5% of the dry mass) and relatively high levels of iron and manganese. Microbial fuel cell powered by mixed bacterial culture isolated from the tested sediment samples demonstrated stable performance reaching power density of 3.5 W/m2 and the COD removal rate of 42 mgO2/dm3 per day. Conclusion: The result confirms the initial hypothesis that electrochemically active microorganisms are available in environments with high concentration of organic matter, iron and manganese in combination with low availability of dissolved oxygen. Mixed culture of anaerobic bacteria isolated from the tested sediment sample was successfully implemented to power Microbial Fuel Cell.

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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