Abstract
Thermincola ferriacetica, a thermophilic, Gram-positive bacterium was recently shown to transfer electrons from oxidation of acetate to an anode. We are conducting a comprehensive characterization of T. ferriacetica strain Z-0001. This strain was grown at 55°C on graphite rods poised at 0 V vs. SHE, in a single-chamber microbial electrolysis cell, and fed with 25 mM phosphate buffer medium containing 20 mM acetate. These conditions resulted in current densities up to 3.5 A m -2. The first derivatives of cyclic voltammetry scans revealed a catalytic wave with a midpoint potential of -0.152 V vs. SHE, similar to the Nernst-Monod E KA for Geobacter sulfurreducens. We will next determine the effect of temperature and buffer concentration on current densities and characterize the substrate range for this strain. The development of thermophilic microbial electrochemical cells may provide an opportunity for recovering energy while treating high temperature wastewaters, such as those from food processing industries.
| Original language | English (US) |
|---|---|
| Title of host publication | ACS National Meeting Book of Abstracts |
| State | Published - 2011 |
| Event | 241st ACS National Meeting and Exposition - Anaheim, CA, United States Duration: Mar 27 2011 → Mar 31 2011 |
Other
| Other | 241st ACS National Meeting and Exposition |
|---|---|
| Country | United States |
| City | Anaheim, CA |
| Period | 3/27/11 → 3/31/11 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
Cite this
Characterization of the thermophilic anode-respiring Thermincola ferriacetica. / Lusk, Bradley; Popat, Sudeep; Parameswaran, Prathap; Rittmann, Bruce; Torres, Cesar.
ACS National Meeting Book of Abstracts. 2011.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Characterization of the thermophilic anode-respiring Thermincola ferriacetica
AU - Lusk, Bradley
AU - Popat, Sudeep
AU - Parameswaran, Prathap
AU - Rittmann, Bruce
AU - Torres, Cesar
PY - 2011
Y1 - 2011
N2 - Thermincola ferriacetica, a thermophilic, Gram-positive bacterium was recently shown to transfer electrons from oxidation of acetate to an anode. We are conducting a comprehensive characterization of T. ferriacetica strain Z-0001. This strain was grown at 55°C on graphite rods poised at 0 V vs. SHE, in a single-chamber microbial electrolysis cell, and fed with 25 mM phosphate buffer medium containing 20 mM acetate. These conditions resulted in current densities up to 3.5 A m -2. The first derivatives of cyclic voltammetry scans revealed a catalytic wave with a midpoint potential of -0.152 V vs. SHE, similar to the Nernst-Monod E KA for Geobacter sulfurreducens. We will next determine the effect of temperature and buffer concentration on current densities and characterize the substrate range for this strain. The development of thermophilic microbial electrochemical cells may provide an opportunity for recovering energy while treating high temperature wastewaters, such as those from food processing industries.
AB - Thermincola ferriacetica, a thermophilic, Gram-positive bacterium was recently shown to transfer electrons from oxidation of acetate to an anode. We are conducting a comprehensive characterization of T. ferriacetica strain Z-0001. This strain was grown at 55°C on graphite rods poised at 0 V vs. SHE, in a single-chamber microbial electrolysis cell, and fed with 25 mM phosphate buffer medium containing 20 mM acetate. These conditions resulted in current densities up to 3.5 A m -2. The first derivatives of cyclic voltammetry scans revealed a catalytic wave with a midpoint potential of -0.152 V vs. SHE, similar to the Nernst-Monod E KA for Geobacter sulfurreducens. We will next determine the effect of temperature and buffer concentration on current densities and characterize the substrate range for this strain. The development of thermophilic microbial electrochemical cells may provide an opportunity for recovering energy while treating high temperature wastewaters, such as those from food processing industries.
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M3 - Conference contribution
BT - ACS National Meeting Book of Abstracts
ER -