Reduced internal resistance of microbial electrolysis cell (MEC) as factors of configuration and stuffing with granular activated carbon
Journal
International Journal of Hydrogen Energy
Journal Volume
35
Journal Issue
24
Pages
13488-13492
Date Issued
2010
Author(s)
Abstract
With limited external applied voltage, the microbial electrolysis cell (MEC) could produce hydrogen by exoelectrogenic microorganisms. The present study revealed that a cubiod-shaped chamber effectively reduces the distance between electrodes and thereby reduces the internal resistance of the entire cell. With 0.6 V of applied voltage, the cuboid MEC had a columbic efficiency of 33.7%, much higher than that achieved in the H-shaped MEC test (ca. 15%) of comparable size. Filling the anode chamber with granular activated carbon further enhanced the columbic efficiency to 45%. The corresponding hydrogen conversion rate could reach 35%. ? 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Subjects
Bio-hydrogen
Granular activated carbon (GAC)
Internal resistance
Microbial electrolysis cell (MEC)
Type
journal article