Limitations for Current Production in Geobacter sulfurreducens Biofilms
AbstractDevices that exploit electricity produced by electroactive bacteria such as Geobacter sulfurreducens have not yet been demonstrated beyond the laboratory scale. The current densities are far from the maximum that the bacteria can produce because fundamental properties such as the mechanism of extracellular electron transport and factors ...
Bonanni, Pablo Sebastian +3 more
openaire +3 more sources
ABSTRACT Continuous‐flow anaerobic digestion (AD) of wheat straw (WS) is often limited by volatile fatty acid (VFA) accumulation at low inoculum‐to‐substrate ratios (ISRs). Here, biochar (8.0 g/L) recovered methane production in overloaded systems (ISR 0.5, HRT 12 days), increasing yields by 658.45 mL/g‐VS.
Marvin T. Valentin +8 more
wiley +1 more source
Microbial electrochemical technologies (METs) require the establishment of anode biofilms to generate electrical current. The factors driving bioanode formation and their variability during startup remain unclear, leading to a lack of effective ...
Juan F. Ortiz-Medina, Douglas F. Call
doaj +1 more source
Electrochemical activity of Geobacter sulfurreducens biofilms on stainless steel anodes [PDF]
Stainless steel was studied as anode for the biocatalysis of acetate oxidation by biofilms of Geobacter sulfurreducens. Electrodeswere individually polarized at different potential in the range−0.20V to +0.20V vs. Ag/AgCl either in the same reactor or in
Basséguy, Régine +2 more
core +2 more sources
The triheme cytochrome PpcF from Geobacter metallireducens exhibits distinct redox properties
Electrogenic bacteria, such as Geobacter, can couple the oxidation of carbon sources to the reduction of extracellular electron acceptors; such acceptors include toxic and radioactive metals, as well as electrode surfaces, making Geobacter a suitable ...
Marisa R. Ferreira +2 more
doaj +1 more source
Electrochemical characterization of Geobacter lovleyi identifies limitations of microbial fuel cell performance in constructed wetlands [PDF]
Microbial Fuel Cells implemented in Constructed Wetlands (CW-MFCs) show limited performance. Geobacter Lovleyi has been demonstrated to be one of the predominant bacterial species in active CW-MFCs. The aim of this study was to characterize the growth of
Corbella Vidal, Clara +3 more
core +1 more source
In Silico Modeling of Geobacter Species. [PDF]
This project employed a combination of in silico modeling and physiological studies to begin the construction of models that could predict the activity of Geobacter species under different environmental conditions. A major accomplishment of the project was the development of the first genome-based models of organisms known environmental relevance. This
openaire +2 more sources
Influent Wastewater Microbiota and Temperature Influence Anaerobic Membrane Bioreactor Microbial Community [PDF]
Sustainable municipal wastewater recovery scenarios highlight benefits of anaerobic membrane bioreactors (AnMBRs). However, influences of continuous seeding by influent wastewater and temperature on attached-growth AnMBRs are not well understood. In this
Berg, K. J. +2 more
core +1 more source
Electron transfer process in microbial electrochemical technologies: the role of cell-surface exposed conductive proteins [PDF]
Electroactive microorganisms have attracted significant interest for the development of novel biotechnological systems of low ecological footprint.
Clarke, Thomas A. +5 more
core +1 more source
Extracellular Electron Uptake by Two Methanosarcina Species
Direct electron uptake by prokaryotes is a recently described mechanism with a potential application for energy and CO2 storage into value added chemicals.
Mon Oo Yee +5 more
doaj +1 more source

