Electricity production from ethanol stillage in two-compartment MFC

Sakdaronnarong, Chularat; Thanosawan, Sirinna; Chaithong, Suthinee; Sinbuathong, Nusara; Jeraputra, Chuttchaval

doi:10.1016/j.fuel.2012.10.030

Cited by 24 publications

(8 citation statements)

References 31 publications

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“…The bacterial library (58 clones sequenced in total) contained three phylotypes belonging to two phyla: Firmicutes (52 clones, 90% of the clones analyzed) and Thermodesulfobacteria (6 clones, 10% of the clones analyzed). In comparison with the anodic consortia of mesophilic and thermophilic MFCs, [16][17][18] the anodic consortium of the hyperthermophilic MFC showed limited diversity. Sequences related to known exoelectrogenic microorganisms were not detected.…”

Section: Molecular Phylogenetic Analysis Of the Anodic Bacterial Popumentioning

confidence: 95%

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Bioelectrochemical analysis of a hyperthermophilic microbial fuel cell generating electricity at temperatures above 80 °C

Fukushima

Maeda

et al. 2015

Bioscience, Biotechnology, and Biochemistry

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We examined whether a hyperthermophilic microbial fuel cell (MFC) would be technically feasible. Two-chamber MFC reactors were inoculated with subsurface microorganisms indigenous to formation water from a petroleum reservoir and were started up at operating temperature 80 °C. The MFC generated a maximum current of 1.3 mA 45 h after the inoculation. Performance of the MFC improved with an increase in the operating temperature; the best performance was achieved at 95 °C with the maximum power density of 165 mWm−2, which was approximately fourfold higher than that at 75 °C. Thus, to our knowledge, our study is the first to demonstrate generation of electricity in a hyperthermophilic MFC (operating temperature as high as 95 °C). Scanning electron microscopy showed that filamentous microbial cells were attached on the anode surface. The anodic microbial consortium showed limited phylogenetic diversity and primarily consisted of hyperthermophilic bacteria closely related to Caldanaerobacter subterraneus and Thermodesulfobacterium commune.

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Section: Molecular Phylogenetic Analysis Of the Anodic Bacterial Popumentioning

confidence: 95%

“…These pollutants can be effectively treated using the MFC technology. [16][17][18] However, because all previous studies were performed under mesophilic (ca. 20-37°C) or at most thermophilic (ca.…”

mentioning

confidence: 99%

Bioelectrochemical analysis of a hyperthermophilic microbial fuel cell generating electricity at temperatures above 80 °C

Fukushima

Maeda

et al. 2015

Bioscience, Biotechnology, and Biochemistry

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“…Sakdaronnarong et al used a two-chamber MFC to treat stillage. A power density of 93 W m −2 was obtained with COD removal efficiency of 81% [ 15 , 21 ]. A maximum power density of 1180 mW m −2 was obtained with post-fermentation biorefinery stream as substrate in an air-cathode MFC [ 22 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of fermentation stillage of food waste on bioelectricity production and microbial community structure in microbial fuel cells

Cheng

Jia

et al. 2018

R. Soc. open sci.

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A single-chamber microbial fuel cell (MFC) was used in this study to treat recycled stillage obtained from food waste ethanol fermentation. Corresponding substrates inside the system were evaluated by fluorescence spectra, and microbial communities were also investigated. Results demonstrated that output voltage and current, respectively, reached 0.29 V and 1.4 mA with an external resistance of 200 Ω. Corresponding total organic carbon and chemical oxygen demand removal efficiency reached more than 50% and 70%, respectively. Results of fluorescence spectra demonstrated that tryptophan-like aromatic, soluble microbial by-product-like and humic acid-like substances accumulated and were not easily degraded. Microbial community analysis by high-throughput sequence indicated that Advenella and Moheibacter occupied the highest proportion among all genera at the anode instead of Geobacter. These results may be due to complicated accumulated stillage, and potential tetracyclines possibly influenced microbial communities. Details on how stillage affects MFC operation should be further studied, and a solution on relieving effects should be established.

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“…A recurring theme in undefined mixed‐culture MFCs is the proliferation of non‐exoelectrogenic methanogens in the anodic chamber . In the anodic chamber, methanogens compete with exoelectrogens for free electrons, space on the anode and protons released by exoelectrogens for methanogenesis, thus reducing the Coulombic efficiency (CE) of the MFC .…”

Section: Bioanode Considerationsmentioning

confidence: 99%

Biocatalytic electrode improvement strategies in microbial fuel cell systems

Breheny

Bowman

Farahmand

et al. 2019

J of Chemical Tech & Biotech

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Microbial fuel cells (MFCs) produce electricity as a result of the microbial metabolism of organic substrates, hence they represent a sustainable approach for energy production and waste treatment. If the technology is to be implemented in industry, low cost and sustainable bioelectrodes must be developed to increase power output, increase waste treatment capacity, and improve service intervals. Although the current application of abiotic electrode catalysts, such as platinum and electrode binders such as Nafion leads to greater MFC performance, their use is cost prohibitive. Novel bioelectrodes which use cost effective and sustainable materials are being developed. These electrodes are developed with the intention to reduce start-up time, reduce costs, extend life-span and improve core MFC performance metrics (i.e. power density, current density, chemical oxygen demand (COD) reduction and Coulombic efficiency (CE)). Comparison of different MFC systems is not an easy task. This is due to variations in MFC design, construction, operation, and different inocula (in the case of mixed-culture MFCs). This high intra-system variability should be considered when assessing MFC data, operation and performance. This review article examines the major issues surrounding bioanode and biocathode improvement in different MFC systems, with the ultimate goal of streamlining and standardising improvement processes.

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Electricity production from ethanol stillage in two-compartment MFC

Cited by 24 publications

References 31 publications

Bioelectrochemical analysis of a hyperthermophilic microbial fuel cell generating electricity at temperatures above 80 °C

Bioelectrochemical analysis of a hyperthermophilic microbial fuel cell generating electricity at temperatures above 80 °C

Effect of fermentation stillage of food waste on bioelectricity production and microbial community structure in microbial fuel cells

Biocatalytic electrode improvement strategies in microbial fuel cell systems

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