PMID- 21146983
OWN - NLM
STAT- MEDLINE
DCOM- 20110421
LR  - 20110110
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 102
IP  - 3
DP  - 2011 Feb
TI  - Microbial fuel cells meet with external resistance.
PG  - 2758-66
LID - 10.1016/j.biortech.2010.10.147 [doi]
AB  - The influence of external load on the composition of the anodic biofilm microbial 
      community and biomass yield was investigated in a microbial fuel cell fed with 
      glucose and domestic wastewater was used as source of electrogens. Denaturing 
      gradient gel electrophoresis (DGGE) of polymerase chain reaction (PCR) amplified 
      16S rRNA gene fragments revealed distinct differences in anodic bacterial 
      communities formed at the anode of each MFC operated under a different external 
      load. These results implied that in an MFC, electrogenic bacteria were enriched 
      under higher current densities, i.e., low external load, and were able to sustain 
      better current and effluent quality. The influence of the external resistance 
      applied to the MFCs during formation of the bacterial communities from sewage 
      wastewater was shown to have no significant effect on power performance of the 
      MFCs nor to have a significant influence on their anodic activity with both 
      glucose and brewery wastewater as fuel. As expected, current generation, COD 
      removal and the biomass yield were all directly influenced by the external load. 
      Significantly, when operated under lower external load, the biomass yield in the 
      MFC was less than that in conventional anaerobic digestion (i.e., control).
CI  - Copyright (c) 2010 Elsevier Ltd. All rights reserved.
FAU - Katuri, Krishna P
AU  - Katuri KP
AD  - School of Chemical Engineering and Advanced Materials, Merz Court, Newcastle 
      University, Newcastle upon Tyne, Tyne and Wear, UK. kpkaturi@yahoo.co.in
FAU - Scott, Keith
AU  - Scott K
FAU - Head, Ian M
AU  - Head IM
FAU - Picioreanu, Cristian
AU  - Picioreanu C
FAU - Curtis, Tom P
AU  - Curtis TP
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20101120
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
SB  - IM
MH  - Bacteria, Anaerobic/*physiology
MH  - Bioelectric Energy Sources/*microbiology
MH  - Biofilms/*growth & development
MH  - Energy Transfer/*physiology
EDAT- 2010/12/15 06:00
MHDA- 2011/04/22 06:00
CRDT- 2010/12/15 06:00
PHST- 2010/05/13 00:00 [received]
PHST- 2010/10/10 00:00 [revised]
PHST- 2010/10/11 00:00 [accepted]
PHST- 2010/12/15 06:00 [entrez]
PHST- 2010/12/15 06:00 [pubmed]
PHST- 2011/04/22 06:00 [medline]
AID - S0960-8524(10)01856-0 [pii]
AID - 10.1016/j.biortech.2010.10.147 [doi]
PST - ppublish
SO  - Bioresour Technol. 2011 Feb;102(3):2758-66. doi: 10.1016/j.biortech.2010.10.147. 
      Epub 2010 Nov 20.