Microbial Electrolysis Cell (
            <scp>MEC</scp>
            )

Kadier, Abudukeremu; Al-Shorgani, Najeeb Kaid Nasser; Jadhav, Dipak A.; Sonawane, Jayesh M.; Mathuriya, Abhilasha Singh; Kalil, Mohd Sahaid; Hasan, Hassimi Abu; Alabbosh, Khulood Fahad

doi:10.1002/9783527343829.ch4

Cited by 15 publications

(10 citation statements)

References 120 publications

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“…Tab. 8 describes the application of a wide variety of substrates used in MECs [5]. MECs facilitate oxidation or redox reactions at high rates which guarantee high yield of H 2 [11].…”

Section: Microbial Electrolysis Cellmentioning

confidence: 99%

Microorganism‐Assisted Biohydrogen Production and Bioreactors

2022

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Microorganism-assisted biohydrogen (BioH 2 ) is an encouraging replacement of fossil-based fuels as feasible preference for various chemical and mechanical processes. BioH 2 is capable to reduce greenhouse gas emissions and solve environmental issues, therefore, numerous studies addressed optimization of operation design, microbial actions, certain addition of chemicals or nanoparticles, pretreatment of algal biomass, diminishing sensibility of enzymes towards O 2 , integration with different processes for biorefinery approach, reducing costs, bioelectrochemical cell membranes, and others. The present review focuses on model organisms employed for the microorganism-assisted biohydrogen production. Metabolic pathways such as biophotolysis, photofermentation, and dark fermentation were discussed for providing deep insight of microorganism-aided biohydrogen production.

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“…Tab. 8 describes the application of a wide variety of substrates used in MECs [5]. MECs facilitate oxidation or redox reactions at high rates which guarantee high yield of H 2 [11].…”

Section: Microbial Electrolysis Cellmentioning

confidence: 99%

Microorganism‐Assisted Biohydrogen Production and Bioreactors

2022

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“…The chemical description of biohydrogen production at the electrodes includes the hydrogen evolution reaction (HER). The HER comprises multiple reactions in which the first step is the electrochemical Volmer reaction, followed by a chemical Tafel reaction or an electrochemical Heyrovský reaction [81]. The HER starts with the Volmer reaction, where protons are coupled to electrons on the electrode's metal surface (MS), producing hydrogen ions bound to the surface.…”

Section: Operating Principlementioning

confidence: 99%

“…However, the MEC has proven to be difficult to upscale [167], especially when adapting to low-cost feedstock that is not chemically defined. Some of the problems linked to upscaling lie in the conductivity of the feedstock, electrode distances, biohydrogen loss, and the price of construction/running and maintaining a larger facility [81], all of which lead to decreased current densities and biohydrogen production. Therefore, an efficient way of predicting larger-scale MECs is needed if MECs are to be industrially applicable.…”

Section: Type Of Configurationmentioning

confidence: 99%

Biohydrogen Production in Microbial Electrolysis Cells Utilizing Organic Residue Feedstock: A Review

et al. 2022

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The need for renewable and sustainable fuel and energy storage sources is pressing. Biohydrogen has the potential to be a storable energy carrier, a direct fuel and a diverse building block for various downstream products. Utilizing microbial electrolysis cells (MECs) to produce biohydrogen from residue streams, such as the organic fraction of municipal solid waste (OFMSW), agricultural residues and wastewater facilitate utilization and energy recovery from these streams, paving the path for a circular economy. The advantages of using hydrogen include high gravimetric energy density and, given the MEC pathway, the ability to capture heavy metals, ammonia and phosphates from waste streams, thereby allowing for multiple revenue streams emanating from MECs. A review of the MEC technology and its application was carried out to investigate the use of MEC in sustainable biohydrogen production. This review summarizes different MEC designs of varying scales, including anode materials, cathode materials, and configuration possibilities. This review highlights the accomplishments and challenges of small-scale to large-scale MECs. Suggestions for improving the successful upscaling of MECs are listed, thus emphasizing the areas for continued research.

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“…The generation of renewable energy in MEC processes employs wastewater, food scraps, and synthetic industrial effluent as substrates [11,12], which are the input to the anodic chamber of the continuous MEC. The organic elements in the input substrate are oxidized using low external voltage and an anaerobic microbial population in the anodic compartment of MEC [13].…”

Section: Introductionmentioning

confidence: 99%

A Robust Controller of a Reactor Electromicrobial System Based on a Structured Fractional Transformation for Renewable Energy

et al. 2022

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The focus on renewable energy is increasing globally to lessen reliance on conventional sources and fossil fuels. For renewable energy systems to work at their best and produce the desired results, precise feedback control is required. Microbial electrochemical cells (MEC) are a relatively new technology for renewable energy. In this study, we design and implement a model-based robust controller for a continuous MEC reactor. We compare its performance with those of traditional methods involving a proportional integral derivative (PID), H-infinity (H∞) controller and PID controller tuned by intelligent genetic algorithms. Recently, a dynamic model of a MEC continuous reactor was proposed, which describes the complex dynamics of MEC through a set of nonlinear differential equations. Until now, no model-based control approaches for MEC have been proposed. For optimal and robust output control of a continuous-reactor MEC system, we linearize the model to state a linear time-invariant (LTI) state-space representation at the nominal operating point. The LTI model is used to design four different types of controllers. The designed controllers and systems are simulated, and their performances are evaluated and compared for various operating conditions. Our findings show that a structured linear fractional transformation (LFT)-based H∞ control approach is much better than the other approaches against various performance parameters. The study provides numerous possibilities for control applications of continuous MEC reactor processes.

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Microbial Electrolysis Cell ( MEC )

Cited by 15 publications

References 120 publications

Microorganism‐Assisted Biohydrogen Production and Bioreactors

Microorganism‐Assisted Biohydrogen Production and Bioreactors

Biohydrogen Production in Microbial Electrolysis Cells Utilizing Organic Residue Feedstock: A Review

A Robust Controller of a Reactor Electromicrobial System Based on a Structured Fractional Transformation for Renewable Energy

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