Results 201 to 210 of about 3,318 (250)
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Biocathodic performance of bioelectrochemical systems operated at low temperature
Bioresource Technology, 2020This study investigated the effects of operational temperature on cathodic performances of five bioelectrochemical reactors operated in parallel at 25-7 °C, and on the biofilm microbial community at the end of tests. Compared with the anodic biofilm, the cathodic biofilm has high stability subjected to temperature shift in the aspect of cathode ...
Zhang, G. +4 more
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Biohydrogen facilitated denitrification at biocathode in bioelectrochemical system (BES)
Bioresource Technology, 2014Reductive removal of nitrate in bioelectrochemical system (BES) at abiotic cathode, biocathode and biohydrogen facilitated biocathode were investigated. It was found that nitrate removal efficiency reached 95% and 59% at the biohydrogen facilitated biocathode and biocathode respectively, while which was only 13% at the abiotic cathode.
Hao, Liu, Qun, Yan, Wei, Shen
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Controlled sequential biocathodic denitrification for contaminated groundwater bioremediation
Science of The Total Environment, 2019Nitrate groundwater contamination is a worldwide concern. In this study, a novel 2-stage, sequential biocathodic denitrification system was tested to perform autotrophic denitrification of synthetic groundwater. The system was operated at different nitrate loading rates (66-301 gNO3--N m-3NCC d-1) at constant NO3--N concentration (40 mgNO3--N L-1), by ...
Daniele Cecconet +3 more
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Hydrogen production in microbial electrolysis cells with biocathodes
Trends in BiotechnologyElectroautotrophic microbes at biocathodes in microbial electrolysis cells (MECs) can catalyze the hydrogen evolution reaction with low energy demand, facilitating long-term stable performance through specific and renewable biocatalysts. However, MECs have not yet reached commercialization due to a lack of understanding of the optimal microbial strains
Md Tabish Noori +3 more
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Environmental Science & Technology, 2015
The use of thermophilic microorganisms as biocatalysts for electromethanogenesis was investigated. Single-chamber reactors inoculated with thermophiles and operated at 55 °C showed high CH4 production rates (max. 1103 mmol m(–2) day(–1) at an applied voltage of 0.8 V) with current-capture efficiencies >90%, indicating that thermophiles have high ...
Qian, Fu +5 more
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The use of thermophilic microorganisms as biocatalysts for electromethanogenesis was investigated. Single-chamber reactors inoculated with thermophiles and operated at 55 °C showed high CH4 production rates (max. 1103 mmol m(–2) day(–1) at an applied voltage of 0.8 V) with current-capture efficiencies >90%, indicating that thermophiles have high ...
Qian, Fu +5 more
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Oxygen transport in composite mediated biocathodes
Electrochimica Acta, 2005Abstract A numerical simulation of an enzyme-catalyzed oxygen cathode is presented and applied to the analysis of transport limitations in operating electrodes, with the goal of predicting the limits of obtainable cathode current density. Based on macrohomogeneous and thin-film theories, and accounting for dual-substrate enzyme kinetics, the one ...
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Methanogenic Biocathode Microbial Community Development and the Role of Bacteria
Environmental Science & Technology, 2017The cathode microbial community of a methanogenic bioelectrochemical system (BES) is key to the efficient conversion of carbon dioxide (CO2) to methane (CH4) with application to biogas upgrading. The objective of this study was to compare the performance and microbial community composition of a biocathode inoculated with a mixed methanogenic (MM ...
Christy M. Dykstra +1 more
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The biocathode of microbial electrochemical systems and microbially-influenced corrosion
Bioresource Technology, 2015The cathode reaction is one of the most important limiting factors in bioelectrochemical systems even with precious metal catalysts. Since aerobic bacteria have a much higher affinity for oxygen than any known abiotic cathode catalysts, the performance of a microbial fuel cell can be improved through the use of electrochemically-active oxygen-reducing ...
Kim, Byung Hong +4 more
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Application of Bacterial Biocathodes in Microbial Fuel Cells
Electroanalysis, 2006AbstractThis review addresses the development and experimental progress of biocathodes in microbial fuel cells (MFCs). Conventional MFCs consist of biological anodes and abiotic cathodes. The abiotic cathode usually requires a catalyst or an electron mediator to achieve high electron transfer, increasing the cost and lowering the operational ...
Zhen He, Largus T. Angenent
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Response of chloramphenicol-reducing biocathode resistome to continuous electrical stimulation.
Water Research, 2019Understanding the fate of overall antibiotic resistance genes (ARGs) during the biological treatment of antibiotic containing wastewater is a central issue for the water ecological safety assessment.
Bin Liang +10 more
semanticscholar +1 more source