Development of exoelectrogenic bioanode and study on feasibility of hydrogen production using abiotic VITO-CoRE™ and VITO-CASE™ electrodes in a single chamber microbial electrolysis cell (MEC) at low current densities

[Display omitted] •Single chamber membrane-free microbial electrolysis cell (MEC) was operated.•High current producing bioanode was developed using farm manure on carbon felt.•H2 production was studied on abiotic cathodes using energy from enriched bioanodes.•VITO-CoRE™ is efficient than VITO-CASE™...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 2015-11, Vol.195, p.131-138
Main Authors: Pasupuleti, Suresh Babu, Srikanth, Sandipam, Venkata Mohan, S., Pant, Deepak
Format: Article
Language:English
Subjects:
Abiotic cathode
Bioelectric Energy Sources - microbiology
Electricity
Electrochemical Techniques
Electrodes
Electrolysis - methods
Electrons
Feasibility Studies
High current producing bioanode
Hydrogen - metabolism
Selective enrichment
VITO-CASE
VITO-CoRE
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Single chamber membrane-free microbial electrolysis cell (MEC) was operated.•High current producing bioanode was developed using farm manure on carbon felt.•H2 production was studied on abiotic cathodes using energy from enriched bioanodes.•VITO-CoRE™ is efficient than VITO-CASE™ in terms of hydrogen and energy recovery. Single chamber membrane-free microbial electrolysis cell (MEC) was operated for the assessment of exoelectrogenic bacteria (EB) growth at carbon felt anode and resultant hydrogen (H2) production at abiotic cathodes, made using cold rolling (VITO-CoRE™) and casting (VITO-CASE™) methods. Progressive enrichment of EB was observed on anode during 70days of operation at an applied potential of +0.2V vs Ag/AgCl, and a maximum current density (CD) of 330.59mA/m2 (1.38mA) was recorded. H2 production at selected abiotic cathodes was observed, when the enriched bioanode was coupled to them in galvanostat mode between 0.1 and 1.0mA current range for 10min each. Higher H2 production of 114.46±3.75mL/m2 was documented with VITO-CoRE™ at 0.6mA, while 102.76±3.75mL/m2 was recorded with VITO-CASE™ at 0.8mA of current application. This study demonstrates the feasibility of H2 production on abiotic cathodes using enriched bioanode at low current densities.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2015.06.145