Complete nitrogen removal by simultaneous nitrification and denitrification in flat-panel air-cathode microbial fuel cells treating domestic wastewater

2017 ◽  
Vol 316 ◽  
pp. 673-679 ◽  
Author(s):  
Younghyun Park ◽  
Seonghwan Park ◽  
Van Khanh Nguyen ◽  
Jaecheul Yu ◽  
César I. Torres ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Nitrogen Removal ◽  
Microbial Fuel Cells ◽  
Domestic Wastewater ◽  
Simultaneous Nitrification And Denitrification ◽  
Flat Panel ◽  
Air Cathode ◽  
Nitrification And Denitrification

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

Effect of gradual transition of substrate on performance of flat-panel air-cathode microbial fuel cells to treat domestic wastewater

2017 ◽  
Vol 226 ◽  
pp. 158-163 ◽  
Author(s):  
Younghyun Park ◽  
Seonghwan Park ◽  
Van Khanh Nguyen ◽  
Jung Rae Kim ◽  
Hong Suck Kim ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Domestic Wastewater ◽  
Gradual Transition ◽  
Flat Panel ◽  
Air Cathode

Simultaneous domestic wastewater treatment and renewable energy production using microbial fuel cells (MFCs)

2011 ◽  
Vol 64 (4) ◽  
pp. 904-909 ◽  
Author(s):  
S. Puig ◽  
M. Serra ◽  
M. Coma ◽  
M. D. Balaguer ◽  
J. Colprim
Keyword(s):  
Wastewater Treatment ◽  
Renewable Energy ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Nitrogen Loss ◽  
Domestic Wastewater ◽  
Air Cathode ◽  
Domestic Wastewater Treatment ◽  
Load Rate

Microbial fuel cells (MFCs) can be used in wastewater treatment and to simultaneously produce electricity (renewable energy). MFC technology has already been applied successfully in lab-scale studies to treat domestic wastewater, focussing on organic matter removal and energy production. However, domestic wastewater also contains nitrogen that needs to be treated before being discharged. The goal of this paper is to assess simultaneous domestic wastewater treatment and energy production using an air-cathode MFC, paying special attention to nitrogen compound transformations. An air-cathode MFC was designed and run treating 1.39 L d−1 of wastewater with an organic load rate of 7.2 kg COD m−3 d−1 (80% removal efficiency) and producing 1.42 W m−3. In terms of nitrogen transformations, the study demonstrates that two different processes took place in the MFC: physical–chemical and biological. Nitrogen loss was observed increasing in line with the power produced. A low level of oxygen was present in the anodic compartment, and ammonium was oxidised to nitrite and nitrate.

Polyelectrolyte–single wall carbon nanotube composite as an effective cathode catalyst for air-cathode microbial fuel cells

2014 ◽  
Vol 70 (10) ◽  
pp. 1610-1616 ◽  
Author(s):  
Huanan Wu ◽  
Min Lu ◽  
Lin Guo ◽  
Leonard Guan Hong Bay ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Reduction Process ◽  
Air Cathode ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Cathode Catalysts ◽  
Metal Free

Polyelectrolyte–single wall carbon nanotube (SCNT) composites are prepared by a solution-based method and used as metal-free cathode catalysts for oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). In this study, two types of polyelectrolytes, polydiallyldimethylammonium chloride (PDDA) and poly[bis(2-chloroethyl)ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] (PEPU) are applied to decorate the SCNTs and the resulting catalysts exhibit remarkable catalytic ability toward ORR in MFC applications. The enhanced catalytic ability could be attributed to the positively charged quaternary ammonium sites of polyelectrolytes, which increase the oxygen affinity of SCNTs and reduce activation energy in the oxygen reduction process. It is also found that PEPU–SCNT composite-based MFCs show efficient performance with maximum power density of 270.1 mW m−2, comparable to MFCs with the benchmark Pt/C catalyst (375.3 mW m−2), while PDDA–SCNT composite-based MFCs produce 188.9 mW m−2. These results indicate that PEPU–SCNT and PDDA–SCNT catalysts are promising candidates as metal-free cathode catalysts for ORR in MFCs and could facilitate MFC scaling up and commercialization.

Mitigation of the effect of catholyte contamination in microbial fuel cells using a wicking air cathode

2009 ◽  
Vol 24 (10) ◽  
pp. 3144-3147 ◽  
Author(s):  
Christian J. Sund ◽  
Michael S. Wong ◽  
James J. Sumner
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Air Cathode

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
Sign in / Sign up

Export Citation Format

Share Document