Modeling of Sustainable Base Production by Microbial Electrolysis Cell.
A predictive model for the microbial/electrochemical base formation from wastewater was established and compared to experimental conditions within a microbial electrolysis cell. A Na2 SO4 /K2 SO4 anolyte showed that model prediction matched experimental results. Using Shewanella oneidensis MR-1, a strong base (pH≈13) was generated using applied voltages between 0.3 and 1.1 V. Due to the use of bicarbonate, the pH value in the anolyte remained unchanged, which is required to maintain microbial activity.
Institute of Life Technologies, HES-SO Valais-Wallis, Rte du Rawyl 64, 1950, Sion, Switzerland.|Chemistry and Chemical Engineering Section, École polytechnique fédérale de Lausanne, Av. Forel 2, 1015, Lausanne, Switzerland.
Maxime
M
Blatter
Institute of Life Technologies, HES-SO Valais-Wallis, Rte du Rawyl 64, 1950, Sion, Switzerland.
Marc
M
Sugnaux
Chemistry and Chemical Engineering Section, École polytechnique fédérale de Lausanne, Av. Forel 2, 1015, Lausanne, Switzerland.
Christos
C
Comninellis
Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA, 90089-0740, USA.
Kenneth
K
Nealson
Institute of Life Technologies, HES-SO Valais-Wallis, Rte du Rawyl 64, 1950, Sion, Switzerland. fabian.fischer@hevs.ch.
Fabian
F
Fischer
D001674:Bioelectric Energy Sources; D018441:Biofilms; D004572:Electrolysis / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008956:Models, Chemical; D020592:Shewanella / Q000737:chemistry* / Q000502:physiology; D013431:Sulfates / Q000737:chemistry; D062065:Wastewater / Q000382:microbiology
D013431:Sulfates; D062065:Wastewater; C012036:sodium sulfate; C031512:potassium sulfate
buffer; electrochemistry; microbial electrolysis cell; modelling; renewable resources