Bio‐electrochemical evaluation of two stage constructed wetland microbial fuel cells with high strength raw domestic wastewater and simultaneous energy recovery

2021 ◽  
Author(s):  
Somil Thakur ◽  
Bhaskar Das
Keyword(s):  
Fuel Cells ◽  
Constructed Wetland ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Domestic Wastewater ◽  
High Strength ◽  
Two Stage ◽  
Electrochemical Evaluation

Effects of anode spacing and flow rate on energy recovery of flat-panel air-cathode microbial fuel cells using domestic wastewater

2018 ◽  
Vol 258 ◽  
pp. 57-63 ◽  
Author(s):  
Younghyun Park ◽  
Van Khanh Nguyen ◽  
Seonghwan Park ◽  
Jaecheul Yu ◽  
Taeho Lee
Keyword(s):  
Fuel Cells ◽  
Flow Rate ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Domestic Wastewater ◽  
Flat Panel ◽  
Air Cathode

scholarly journals Constructed Wetland-Microbial Fuel Cells for Sustainable Greywater Treatment

Water ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 940 ◽  
Author(s):  
Ignacio Araneda ◽  
Natalia Tapia ◽  
Katherine Lizama Allende ◽  
Ignacio Vargas
Keyword(s):  
Fuel Cells ◽  
Constructed Wetlands ◽  
Constructed Wetland ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Low Cost ◽  
Nitrate Removal ◽  
Oxygen Demand ◽  
Phosphate Removal ◽  
Removal Efficiencies

Greywater reuse through decentralized and low-cost treatment systems emerges as an opportunity to tackle the existing demand for water. In recent years, constructed wetlands (CW) systems and microbial fuel cells (MFCs) have emerged as attractive technologies for sustainable wastewater treatment. In this study, constructed wetland microbial fuel cells (CW-MFCs) planted with Phragmites australis were tested to evaluate the potential of combining these two systems for synthetic greywater treatment and energy recovery. Open (CW) and closed circuit (CW-MFCs) reactors were operated for 152 days to evaluate the effect of energy recovery on the removal of soluble chemical oxygen demand (sCOD), nutrients and total suspended solids (TSS). Results indicate no significant differences for sCOD and phosphate removal efficiencies. CW-MFCs and CW reactors presented sCOD removal efficiency of 91.7 ± 5.1% and 90 ± 10% and phosphate removal efficiencies of 56.3 ± 4.4% and 61.5 ± 3.5%, respectively. Nitrate removal efficiencies were higher in CW: 99.5 ± 1% versus 86.5 ± 7.1% in CW-MFCs, respectively. Energy generation reached a maximum power density of 33.52 ± 7.87 mW m−3 and 719.57 ± 67.67 mW m−3 at a poised anode potential of −150 mV vs. Ag/AgCl. Thus, our results suggest that the incorporation of MFC systems into constructed wetlands does allow energy recovery while providing effective greywater treatment.

scholarly journals Investigation on Microbial Fuel Cells Fabricated from Recyclable Materials for Energy Generation and Wastewater Treatment

2021 ◽  
Vol 20 (4) ◽  
Author(s):  
Somil Thakur ◽  
Bhaskar Das
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Domestic Wastewater ◽  
High Strength ◽  
Energy Generation ◽  
Green Energy ◽  
Operating Conditions ◽  
Voltage Generation ◽  
Low Strength ◽  
Power Densities

Microbial fuel cells (MFC) have gained focus due to their diversity in operating conditions & substrates for the generation of sustainable green energy. In the present study, novel MFC has been fabricated using the recyclable aluminum can as air-cathode and graphite rod as anode for the treatment of domestic wastewater and simultaneous power generation. Three different substrate (COD) concentrations, high (>800 mg.L-1), medium (250 mg.L-1 - 800 mg.L-1) and low (<250 mg.L-1) were used. The maximum COD removal efficiencies, voltage generation, power densities were found to be 80%, 0.71 V, and 304.46 mW.m-2 respectively in high strength wastewater setup. In both medium and low strength wastewater setups, after 288 hours, the COD was reduced below 50 mg.L-1 thus limiting the electricity generation substantially. Setup with low-strength wastewater produced a maximum CE (%) of 13.80. Overall results showed that although high-strength wastewater produced better and maximum power densities, medium and low-strength wastewater setups were more consistent in energy generation throughout the experiment.

scholarly journals T-RFLP reveals high β-Proteobacteria diversity in microbial fuel cells enriched with domestic wastewater

2010 ◽  
Vol 109 (3) ◽  
pp. 839-850 ◽  
Author(s):  
O. Lefebvre ◽  
T.T. Ha Nguyen ◽  
A. Al-Mamun ◽  
I.S. Chang ◽  
H.Y. Ng
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Domestic Wastewater

High strength bioethanol wastewater inoculated with single‐strain or binary consortium feeding air‐cathode microbial fuel cells

2018 ◽  
Vol 38 (2) ◽  
pp. 380-386 ◽  
Author(s):  
Rodrigo J. Marassi ◽  
Marcos Igreja ◽  
Manzo Uchigasaki ◽  
Gilmar C. Silva
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
High Strength ◽  
Air Cathode ◽  
Single Strain

Energy Recovery with Microbial Fuel Cells: Bioremediation and Bioelectricity

2017 ◽  
pp. 7-33 ◽  
Author(s):  
Debajyoti Bose ◽  
Vaibhaw Kandpal ◽  
Himanshi Dhawan ◽  
P. Vijay ◽  
M. Gopinath
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Recovery
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