Abstract
This study examined the continuous performance of air cathode MFC stacks for domestic wastewater treatments at two different temperatures (23 ± 3 °C and 30 ± 1 °C) and organic loading rates to determine the effects of the electrode connection and hydraulic flow mode on the stack performance. The power density and process stability were affected significantly by the electrode connection type, flow mode, and operating parameters. The parallel electrode connection system (in series flow mode) had benefits of COD removal, Coulombic efficiency and maximal power density due to the higher stability of the ORP in overall cells. The highest power density of 420 mW/m(2) (12.8 W/m(3)) was achieved in series flow and parallel connection mode at an organic loading rate of 25.6 g COD/L-d (HRT of 0.33 h) under mesophilic conditions, achieving a COD removal of 44%. The results highlight the importance of prefermentation process in the application of a stacked MFC for an actual wastewater treatment.
TY - JOUR
T1 - Continuous electricity generation in stacked air cathode microbial fuel cell treating domestic wastewater.
AU - Choi,Jeongdong,
AU - Ahn,Youngho,
Y1 - 2013/09/26/
PY - 2013/06/11/received
PY - 2013/08/24/revised
PY - 2013/08/31/accepted
PY - 2013/10/1/entrez
PY - 2013/10/1/pubmed
PY - 2014/6/10/medline
KW - Domestic wastewater
KW - Electrode connection
KW - Hydraulic flow mode
KW - Power generation
KW - Stacked microbial fuel cell
KW - Voltage reversal
SP - 146
EP - 52
JF - Journal of environmental management
JO - J Environ Manage
VL - 130
N2 - This study examined the continuous performance of air cathode MFC stacks for domestic wastewater treatments at two different temperatures (23 ± 3 °C and 30 ± 1 °C) and organic loading rates to determine the effects of the electrode connection and hydraulic flow mode on the stack performance. The power density and process stability were affected significantly by the electrode connection type, flow mode, and operating parameters. The parallel electrode connection system (in series flow mode) had benefits of COD removal, Coulombic efficiency and maximal power density due to the higher stability of the ORP in overall cells. The highest power density of 420 mW/m(2) (12.8 W/m(3)) was achieved in series flow and parallel connection mode at an organic loading rate of 25.6 g COD/L-d (HRT of 0.33 h) under mesophilic conditions, achieving a COD removal of 44%. The results highlight the importance of prefermentation process in the application of a stacked MFC for an actual wastewater treatment.
SN - 1095-8630
UR - https://www.unboundmedicine.com/medline/citation/24076514/Continuous_electricity_generation_in_stacked_air_cathode_microbial_fuel_cell_treating_domestic_wastewater_
L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(13)00591-4
DB - PRIME
DP - Unbound Medicine
ER -