Results 171 to 180 of about 2,387 (226)
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Water Research
The consistent presence of p-chloronitrobenzene (p-CNB) in groundwater has raised concerns regarding its potential harm. In this study, we developed a biocathode-anode cascade system in a permeable reactive barrier (BACP), integrating biological ...
Ping-Li Li +10 more
semanticscholar +1 more source
The consistent presence of p-chloronitrobenzene (p-CNB) in groundwater has raised concerns regarding its potential harm. In this study, we developed a biocathode-anode cascade system in a permeable reactive barrier (BACP), integrating biological ...
Ping-Li Li +10 more
semanticscholar +1 more source
Role of Biocathodes in Bioelectrochemical Systems
2017Environmental damage, depleting fossil fuels and energy security are major factors driving intensive research efforts to develop carbon neutral or carbon negative technologies which can be used to produce electricity and chemicals. Technologies under development to achieve this goal include those based on bioelectrochemical, biological, thermal and ...
V. Prakasam +5 more
openaire +1 more source
Efficient nitrate removal via microorganism-iron oxide co-evolution on biocathode surface.
BioelectrochemistrySediment microbial fuel cell (SMFC) is a device for biological denitrification, in which electrons produced by sediment microorganisms can be transferred to the upper layer of the water column lacking electron donors.
Xiaojun Liu +7 more
semanticscholar +1 more source
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
openaire +2 more sources
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
openaire +3 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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 ...
openaire +1 more source
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
openaire +3 more sources
Methanogenic Biocathode Microbial Community Development and the Role of Bacteria
Environmental Science & Technology, 2017Abstract The 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 ...
Christy M. Dykstra +1 more
openaire +2 more sources