Effect of pre-acclimation of granular activated carbon on microbial electrolysis cell startup and performance

LaBarge, Nicole; Yılmazel, Yasemin Dilşad; Hong, Pei‐Ying; Logan, Bruce E.

doi:10.1016/j.bioelechem.2016.08.003

Cited by 38 publications

(18 citation statements)

References 20 publications

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“…Current efforts to improve performance are focused on combining new and existing materials [20,198], re-shaping them [181,199] or applying different pre-treatments to the electrode surface [200] in order to increase biocompatibility. The use of modified carbon cloth with chitosan or cyanuric chloride, which is relatively inexpensive, showed a 6 to 7-fold increase in microbial electrosynthesis activity [198].…”

Section: Current Limitations In Electromethanogenesis and Proposedmentioning

confidence: 99%

“…Aryal et al developed a 3D-network cathode as an effective approach to improve microbe-electrode interactions leading to productive CO 2 -reducing biocathodes [199]. LaBarge et al confirmed that microbes related to electromethanogenesis and exocellular electron transfer were enriched on a pretreated granular activated carbon, improving methane generation rates and decreasing startup times [200]. The pretreatment consisted of adding such as inorganics (hydrogen gas) or organics (methanol, acetate and propionate) substrates to the inoculum communities, and enriching them in archaea, Geobacter spp., and sulfate-reducing bacteria prior to their inoculation.…”

Section: Current Limitations In Electromethanogenesis and Proposedmentioning

confidence: 99%

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On the Edge of Research and Technological Application: A Critical Review of Electromethanogenesis

Blasco-Gómez

Batlle-Vilanova

Villano

et al. 2017

IJMS

172

103

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The conversion of electrical current into methane (electromethanogenesis) by microbes represents one of the most promising applications of bioelectrochemical systems (BES). Electromethanogenesis provides a novel approach to waste treatment, carbon dioxide fixation and renewable energy storage into a chemically stable compound, such as methane. This has become an important area of research since it was first described, attracting different research groups worldwide. Basics of the process such as microorganisms involved and main reactions are now much better understood, and recent advances in BES configuration and electrode materials in lab-scale enhance the interest in this technology. However, there are still some gaps that need to be filled to move towards its application. Side reactions or scaling-up issues are clearly among the main challenges that need to be overcome to its further development. This review summarizes the recent advances made in the field of electromethanogenesis to address the main future challenges and opportunities of this novel process. In addition, the present fundamental knowledge is critically reviewed and some insights are provided to identify potential niche applications and help researchers to overcome current technological boundaries.

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Section: Current Limitations In Electromethanogenesis and Proposedmentioning

confidence: 99%

Section: Current Limitations In Electromethanogenesis and Proposedmentioning

confidence: 99%

On the Edge of Research and Technological Application: A Critical Review of Electromethanogenesis

Blasco-Gómez

Batlle-Vilanova

Villano

et al. 2017

IJMS

172

103

View full text Add to dashboard Cite

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“…Studies investigating improved conversion rates and shorter start up lag times in anaerobic processes with the addition of conductive materials [139][140][141][142] [143] lay the groundwork for rational design of cathode material for CCPHF since conductive and semi-conductive materials are believed to serve as electrical conduits between species, even compensating for the lack of conductive membrane proteins ( Table 2) as depicted in Figure 11B. [144] These include carbon-based materials like CNTs [141] , carbon cloth [145] , carbon felt [146] , biochar [145,147] , granular activated carbon (GAC) [142,148] , graphite [145,146] ; and metal-based materials like stainless steel [143] , haematite [139] , and magnetite. [139,140] These conductive materials can be used in the fabrication and decoration of CCPHF cathodes to facilitate the occurrence of DIET, for example by creating CNT forests on porous ceramic hollow fibers ( Figure 5).…”

Section: Materials That Facilitate Direct Electron Transfermentioning

confidence: 99%

Dual‐Function Electrocatalytic and Macroporous Hollow‐Fiber Cathode for Converting Waste Streams to Valuable Resources Using Microbial Electrochemical Systems

et al. 2018

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Dual-function electrocatalytic and macroporous hollow-fiber cathodes are recently proposed as promising advanced material for maximizing the conversion of waste streams such as wastewater and waste CO to valuable resources (e.g., clean freshwater, energy, value-added chemicals) in microbial electrochemical systems. The first part of this progress report reviews recent developments in this type of cathode architecture for the simultaneous recovery of clean freshwater and energy from wastewater. Critical insights are provided on suitable materials for fabricating these cathodes, as well as addressing some challenges in the fabrication process with proposed strategies to overcome them. The second and complementary part of the progress report highlights how the unique features of this cathode architecture can solve one of the intrinsic bottlenecks (gas-liquid mass transfer limitation) in the application of microbial electrochemical systems for CO reduction to value-added products. Strategies to further improve the availability of CO to microbial catalysts on the cathode are proposed. The importance of understanding microbe-cathode interactions, as well as electron transfer mechanisms at the cathode-cell and cell-cell interface to better design dual-function macroporous hollow-fiber cathodes, is critically discussed with insights on how the choice of material is important in facilitating direct electron transfer versus mediated electron transfer.

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“…A number of scientists [8][9][10][11][12] suggest the anaerobic technologies or the biochemical oxidation as an alternative to the aerobic treatment. An additional product of such treatment is biogas, which can be used as an energy source.…”

Section: Introductionmentioning

confidence: 99%

Physical-chemical wastewater treatment in Arctic conditions

et al. 2020

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The biological wastewater treatment problem of the small villages located in the Arctic zone is considered. The purpose of this research is to study the alternative wastewater treatment method in Northern settlements. Standard research methods were used: gravimetric and photometric methods of liquid analysis to achieve this goal. This article presents the physical-chemical wastewater treatment method, consisted of coagulation proses, oxidation, sand and sorption filtration. As a result of the laboratory research, the effects of pollutants removal are 96.6% (COD), 82.4% (ammonium) and 97.1% (nitrates). These effects were achieved by the technological scheme that includes a coagulation, two-stage sequential oxidation with potassium permanganate and ozone, and intermediate filtration too. The brands of coagulant and flocculant were selected, as well as their optimal doses.

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Effect of pre-acclimation of granular activated carbon on microbial electrolysis cell startup and performance

Cited by 38 publications

References 20 publications

On the Edge of Research and Technological Application: A Critical Review of Electromethanogenesis

On the Edge of Research and Technological Application: A Critical Review of Electromethanogenesis

Dual‐Function Electrocatalytic and Macroporous Hollow‐Fiber Cathode for Converting Waste Streams to Valuable Resources Using Microbial Electrochemical Systems

Physical-chemical wastewater treatment in Arctic conditions

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