Bioaugmentation for electricity generation from corn stover biomass using microbial fuel cells

Xin Wang, Yujie Feng, Heming Wang, Youpeng Qu, Yanling Yu, Nanqi Ren, Nan Li, Elle Wang, He Lee, Bruce E. Logan

Research output: Contribution to journalArticle

108 Citations (Scopus)

Abstract

Corn stover is usually treated by an energy-intensive or expensive process to extract sugars for bioenergy production. However, it is possible to directly generate electricity from corn stover in microbial fuel cells (MFCs) through the addition of microbial consortia specifically acclimated for biomass breakdown. A mixed culture that was developed to have a high saccharification rate with corn stover was added to singlechamber, air-cathode MFCs acclimated for power production using glucose. The MFC produced a maximum power of 331 mW/ m 2 with the bioaugmented mixed culture and corn stover, compared to 510 mW/m2 using glucose. Denaturing gradient gel electrophoresis (DGGE) showed the communities continued to evolve on both the anode and corn stover biomass over 60 days, with several bacteria identified including Rhodopseudomonas palustris. The use of residual solids from the steam exploded corn stover produced 8% more power (406 mW/m2) than the raw corn stover. These results show that it is possible to directly generate electricity from waste corn stover in MFCs through bioaugmentation using naturally occurring bacteria.

Original languageEnglish (US)
Pages (from-to)6088-6093
Number of pages6
JournalEnvironmental Science and Technology
Volume43
Issue number15
DOIs
StatePublished - Aug 1 2009

Fingerprint

Microbial fuel cells
electricity generation
fuel cell
Biomass
Electricity
maize
biomass
Bacteria
Glucose
Saccharification
Steam
Electrophoresis
Sugars
electricity
Anodes
glucose
Cathodes
Gels
bacterium
bioenergy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Wang, Xin ; Feng, Yujie ; Wang, Heming ; Qu, Youpeng ; Yu, Yanling ; Ren, Nanqi ; Li, Nan ; Wang, Elle ; Lee, He ; Logan, Bruce E. / Bioaugmentation for electricity generation from corn stover biomass using microbial fuel cells. In: Environmental Science and Technology. 2009 ; Vol. 43, No. 15. pp. 6088-6093.
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Bioaugmentation for electricity generation from corn stover biomass using microbial fuel cells. / Wang, Xin; Feng, Yujie; Wang, Heming; Qu, Youpeng; Yu, Yanling; Ren, Nanqi; Li, Nan; Wang, Elle; Lee, He; Logan, Bruce E.

In: Environmental Science and Technology, Vol. 43, No. 15, 01.08.2009, p. 6088-6093.

Research output: Contribution to journalArticle

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