Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 39, Issue 36, Pages 21819-21827Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.07.085
Keywords
Microbial fuel cell; Domestic wastewater; Distillery wastewater; Interlaced carbon yarn anode
Categories
Funding
- EU [P.N. 231072]
Ask authors/readers for more resources
Microbial fuel cells (MFCs) are bio-electrochemical devices that couple organic carbon removal from wastewater and electricity production. Full-scale application of MFCs in a wastewater treatment plant (WWTP) requires high surface, lowcost electrodes to maximize microbial growth and power output. In this study, a high surface MFC anode is constructed by interlacing carbon yarn with stainless steel. The anode is arranged in a double-air cathode MFC configuration with 6 +/- 1 Omega internal resistance. When closed on 100 Omega external resistances in batch mode, the MFCs produce maximum power densities of 621 +/- 17 and 364 +/- 11 mW m(-2) for domestic and distillery wastewater, respectively. The chemical oxygen demand (COD) removal is 68% and 58% with a columbic efficiency of 47% and 27% for domestic and distillery wastewater, respectively. The biofouling layer on the Nafion membrane is twofold thicker in the domestic wastewater MFC, thereby suggesting that the power output and COD removal in distillery wastewater MFC are not limited by the cation transport across the membrane, but rather by the chemical composition of the distillery wastewater that does not support an efficient electrochemically active microbial community. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available