Microbial fuel cells for wastewater treatment

2006 ◽  
Vol 54 (8) ◽  
pp. 9-15 ◽  
Author(s):  
P. Aelterman ◽  
K. Rabaey ◽  
P. Clauwaert ◽  
W. Verstraete
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Potential Energy ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Oxygen Demand ◽  
Wastewater Effluent ◽  
Hospital Wastewater ◽  
Potato Processing ◽  
Conversion Efficiencies

Microbial fuel cells (MFCs) are emerging as promising technology for the treatment of wastewaters. The potential energy conversion efficiencies are examined. The rates of energy recovery (W/m3 reactor) are reviewed and evaluated. Some recent data relating to potato-processing wastewaters and a hospital wastewater effluent are reported. Finally, a set of process configurations in which MFCs could be useful to treat wastewaters is schematized. Overall, the MFC technology still faces major challenges, particularly in terms of chemical oxygen demand (COD) removal efficiency.

scholarly journals Bioelectricity production from tofu wastewater using microbial fuel cells with microalgae Spirulina sp as catholyte

2020 ◽  
Vol 202 ◽  
pp. 08007
Author(s):  
Wahyu Zuli Pratiwi ◽  
Hadiyanto Hadiyanto ◽  
Purwanto Purwanto ◽  
Muthi’ah Nur Fadlilah
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Organic Waste ◽  
Oxygen Demand ◽  
Salt Bridge ◽  
Cod Removal ◽  
Biofuel Production ◽  
Pre Treatment ◽  
Made In

Microalgae-Microbial Fuel Cells (MMFCs) are very popular to be used to treat organic waste. MMFCs can function as an energy-producing wastewater pre-treatment system. Wastewater can provide an adequate supply of nutrients, support the large capacity of biofuel production, and can be integrated with existing wastewater treatment infrastructure. The reduced content of Chemical Oxygen Demand (COD) is one way to measure the efficiency of wastewater treatment. MMFCs reactors are made in the form of two chambers (anode and cathode) both of which are connected by a salt bridge. Tofu wastewater as an anode and Spirulina sp as a cathode. To improve MFCs performance which is to obtain maximum COD removal and electricity generation, nutrient NaHCO3 as the nutrient carbon source for Spirulina sp was varied. The system running phase on 12 days. The results were Spirulina sp treated with MFCs technology has better growth than non-MFCs. The MMFC generated a maximum power density of 21.728 mW/cm2 and achieved 57.37% COD removal. These results showed that the combined process was effective in treating tofu wastewater.

Recent advances in the use of different substrates in microbial fuel cells toward wastewater treatment and simultaneous energy recovery

2016 ◽  
Vol 168 ◽  
pp. 706-723 ◽  
Author(s):  
Prashant Pandey ◽  
Vikas N. Shinde ◽  
Rajendra L. Deopurkar ◽  
Sharad P. Kale ◽  
Sunil A. Patil ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Recent Advances

scholarly journals Wastewater Treatment and Online Chemical Oxygen Demand Estimation in a Cascade of Microbial Fuel Cells

2017 ◽  
Vol 56 (44) ◽  
pp. 12471-12478 ◽  
Author(s):  
Didac Recio-Garrido ◽  
Ademola Adekunle ◽  
Michel Perrier ◽  
Vijaya Raghavan ◽  
Boris Tartakovsky
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Chemical Oxygen Demand ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Demand Estimation

COD Removal and Electricity Generation From Domestic Wastewater Using Different Anode Materials in Microbial Fuel Cells

2019 ◽  
Vol 8 (1) ◽  
pp. 1-12
Author(s):  
G. Shyamala ◽  
N. Saravanakumar ◽  
E. Vamsi Krishna
Keyword(s):  
Power Generation ◽  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Salt Bridge ◽  
Anode Chamber ◽  
Cathode Chamber

Microbial fuel cells (MFCs) set a new trend of converting chemical energy or bio energy to electricity from wastewater (domestic and industries) at the same time removal of chemical oxygen demand (COD) from the wastewater. Electrical energy generated from microbial fuel cell could be used for small electrical device example biosensors. The main components of MFCs are the anode, and the cathode salt bridge. It contains an anode chamber and a cathode chamber which separate electrodes for the production of electricity, using wastewater in an anaerobic chamber helps grow native microorganisms. Adding substrates increases productivity of the electrons that are moving from the anode chamber to the cathode chamber by help of the salt bridge. Bioreactors based on power generation in MFCs are a new approach to wastewater treatment. Power generation and current is modulated in this system. If it is optimised, MFCs would prove to be new method to offset wastewater treatment plant operating costs.

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.

Modular tubular microbial fuel cells for energy recovery during sucrose wastewater treatment at low organic loading rate

2010 ◽  
Vol 101 (4) ◽  
pp. 1190-1198 ◽  
Author(s):  
Jung Rae Kim ◽  
Giuliano C. Premier ◽  
Freda R. Hawkes ◽  
Jorge Rodríguez ◽  
Richard M. Dinsdale ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Recovery ◽  
Loading Rate ◽  
Organic Loading Rate ◽  
Organic Loading

Microbial fuel cells: Devices for real wastewater treatment, rather than electricity production

2021 ◽  
Vol 775 ◽  
pp. 145904
Author(s):  
Jaecheul Yu ◽  
Younghyun Park ◽  
Evy Widyaningsih ◽  
Sunah Kim ◽  
Younggy Kim ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Electricity Production ◽  
Real Wastewater
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