From single MFC to cascade configuration: The relationship between size, hydraulic retention time and power density

Walter, Xavier Alexis; Forbes, Samuel; Greenman, John; Ieropoulos, Ioannis A.

doi:10.1016/j.seta.2016.01.006

3D printed components of microbial fuel cells: Towards monolithic microbial fuel cell fabrication using additive layer manufacturing (2016)
Journal Article

© 2016 The Authors For practical applications of the MFC technology, the design as well as the processes of manufacturing and assembly, should be optimised for the specific target use. Another burgeoning technology, additive manufacturing (3D printin... Read More about 3D printed components of microbial fuel cells: Towards monolithic microbial fuel cell fabrication using additive layer manufacturing.

Autonomous energy harvesting and prevention of cell reversal in MFC stacks (2016)
Journal Article

© The Author(s) 2016. This study presents a novel method for avoiding cell reversal whilst optimising energy harvesting from stacked Microbial Fuel Cells (MFCs) by dynamically reconfiguring the electrical connections between them. The sequential chan... Read More about Autonomous energy harvesting and prevention of cell reversal in MFC stacks.

Electricity and catholyte production from ceramic MFCs treating urine (2016)
Journal Article

© 2016 The Authors The use of ceramics as low cost membrane materials for Microbial Fuel Cells (MFCs) has gained increasing interest, due to improved performance levels in terms of power and catholyte production. The catholyte production in ceramic M... Read More about Electricity and catholyte production from ceramic MFCs treating urine.

Enhanced MFC power production and struvite recovery by the addition of sea salts to urine (2016)
Journal Article

© 2016 The Authors Urine is an excellent fuel for electricity generation in Microbial Fuel Cells (MFCs), especially with practical implementations in mind. Moreover, urine has a high content in nutrients which can be easily recovered. Struvite (MgNH4... Read More about Enhanced MFC power production and struvite recovery by the addition of sea salts to urine.

Toward Energetically Autonomous Foraging Soft Robots (2016)
Journal Article

© 2016, Mary Ann Liebert, Inc. A significant goal of robotics is to develop autonomous machines, capable of independent and collective operation free from human assistance. To operate with complete autonomy robots must be capable of independent movem... Read More about Toward Energetically Autonomous Foraging Soft Robots.

The dawn of biodegradable robots (2016)
Journal Article
Winfield, J., Rossiter, J., & Ieropoulos, I. (2016). The dawn of biodegradable robots

Robotics is a field that is not normally associated with green technology or sustainability. Robots are generally constructed using materials that are non-biodegradable, toxic and expensive. These factors can limit the potential uses that an artifici... Read More about The dawn of biodegradable robots.

An iTRAQ characterisation of the role of TolC during electron transfer from Shewanella oneidensis MR-1 (2016)
Journal Article
Fowler, G. J., Pereira-Medrano, A. G., Jaffe, S., Pasternak, G., Pham, T. K., Ledezma, P., …Wright, P. C. (2016). An iTRAQ characterisation of the role of TolC during electron transfer from Shewanella oneidensis MR-1. Proteomics, 16(21), 2764-2775. https://doi.org/10.1002/pmic.201500538

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Anodophilic bacteria have the ability to generate electricity in microbial fuel cells (MFCs) by extracellular electron transfer to the anode. We investigated the anode-specific responses of Shewanel... Read More about An iTRAQ characterisation of the role of TolC during electron transfer from Shewanella oneidensis MR-1.

Carbon-based air-breathing cathodes for microbial fuel cells (2016)
Journal Article
Merino-Jimenez, I., Santoro, C., Rojas-Carbonell, S., Greenman, J., Ieropoulos, I., & Atanassov, P. (2016). Carbon-based air-breathing cathodes for microbial fuel cells. Catalysts, 6(9), 127. https://doi.org/10.3390/catal6090127

© 2016 by the authors; licensee MDPI, Basel, Switzerland. A comparison between different carbon-based gas-diffusion air-breathing cathodes for microbial fuel cells (MFCs) is presented in this work. A micro-porous layer (MPL) based on carbon black (CB... Read More about Carbon-based air-breathing cathodes for microbial fuel cells.

A review into the use of ceramics in microbial fuel cells (2016)
Journal Article
Winfield, J., Gajda, I., Greenman, J., & Ieropoulos, I. (2016). A review into the use of ceramics in microbial fuel cells. Bioresource Technology, 215, 296-303. https://doi.org/10.1016/j.biortech.2016.03.135

© 2016 The Authors. Microbial fuel cells (MFCs) offer great promise as a technology that can produce electricity whilst at the same time treat wastewater. Although significant progress has been made in recent years, the requirement for cheaper materi... Read More about A review into the use of ceramics in microbial fuel cells.

Microbial fuel cell – A novel self-powered wastewater electrolyser for electrocoagulation of heavy metals (2016)
Journal Article

© 2016 The Authors This paper describes the suitability of the Microbial Fuel Cell (MFC) for generation of electrical power with a simultaneous synthesis of active catholyte in the form of caustic solution. The active solution formed inside a terraco... Read More about Microbial fuel cell – A novel self-powered wastewater electrolyser for electrocoagulation of heavy metals.

Urine transduction to usable energy: A modular MFC approach for smartphone and remote system charging (2016)
Journal Article

© 2016 The Authors This study reports for the first time the full charging of a state-of-the-art mobile smartphone, using Microbial Fuel Cells fed with urine. This was possible by employing a new design of MFC that allowed scaling-up without power de... Read More about Urine transduction to usable energy: A modular MFC approach for smartphone and remote system charging.

Microalgae as substrate in low cost terracotta-based microbial fuel cells: Novel application of the catholyte produced (2016)
Journal Article

© 2016 Elsevier Ltd. In this work, the by-product generated during the operation of cylindrical MFCs, made out of terracotta material, is investigated as a feasible means of degrading live microalgae for the first time. In addition to the low cost ma... Read More about Microalgae as substrate in low cost terracotta-based microbial fuel cells: Novel application of the catholyte produced.

Electricity and disinfectant production from wastewater: Microbial Fuel Cell as a self-powered electrolyser (2016)
Journal Article

This study presents a simple and sustainable Microbial Fuel Cell as a standalone, self-powered reactor for in situ wastewater electrolysis, recovering nitrogen from wastewater. A process is proposed whereby the MFC electrical performance drives the e... Read More about Electricity and disinfectant production from wastewater: Microbial Fuel Cell as a self-powered electrolyser.

Scaling-up of a novel, simplified MFC stack based on a self-stratifying urine column (2016)
Journal Article

© 2016 Walter et al. Background: The microbial fuel cell (MFC) is a technology in which microorganisms employ an electrode (anode) as a solid electron acceptor for anaerobic respiration. This results in direct transformation of chemical energy into e... Read More about Scaling-up of a novel, simplified MFC stack based on a self-stratifying urine column.

Study of the effects of ionic liquid-modified cathodes and ceramic separators on MFC performance (2016)
Journal Article

© 2016 Elsevier B.V. Ceramic-based MFC designs have proven to be a low cost alternative for power production and wastewater treatment. The use of ionic liquids in ceramic MFCs is explored for the first time in the present work in order to improve pow... Read More about Study of the effects of ionic liquid-modified cathodes and ceramic separators on MFC performance.

Regeneration of the power performance of cathodes affected by biofouling (2016)
Journal Article

© 2016 The Authors. Air cathode microbial fuel cells (MFCs) were used in a cascade-system, to treat neat human urine as the fuel. Their long-term operation caused biodeterioration and biofouling of the cathodes. The cathodes were made from two graphi... Read More about Regeneration of the power performance of cathodes affected by biofouling.

On hybrid circuits exploiting thermistive properties of slime mould (2016)
Journal Article
Walter, X. A., Horsfield, I., Mayne, R., Ieropoulos, I. A., & Adamatzky, A. (2016). On hybrid circuits exploiting thermistive properties of slime mould. Scientific Reports, 6(23924), https://doi.org/10.1038/srep23924

Slime mould Physarum polycephalum is a single cell visible by the unaided eye. Let the slime mould span two electrodes with a single protoplasmic tube: if the tube is heated to approximately ≈40 °C, the electrical resistance of the protoplasmic tube... Read More about On hybrid circuits exploiting thermistive properties of slime mould.

Microbial Fuel Cell-driven caustic potash production from wastewater for carbon sequestration (2016)
Journal Article
Gajda, I., Greenman, J., Melhuish, C., Santoro, C., & Ieropoulos, I. (2016). Microbial Fuel Cell-driven caustic potash production from wastewater for carbon sequestration. Bioresource Technology, 215, 285-289. https://doi.org/10.1016/j.biortech.2016.04.004

© 2016 The Authors. This work reports on the novel formation of caustic potash (KOH) directly on the MFC cathode locking carbon dioxide into potassium bicarbonate salt (kalicinite) while producing, instead of consuming electrical power. Using potassi... Read More about Microbial Fuel Cell-driven caustic potash production from wastewater for carbon sequestration.

Towards effective small scale microbial fuel cells for energy generation from urine (2016)
Journal Article

© 2016 The Authors. Published by Elsevier Ltd. To resolve an increasing global demand in energy, a source of sustainable and environmentally friendly energy is needed. Microbial fuel cells (MFC) hold great potential as a sustainable and green bioener... Read More about Towards effective small scale microbial fuel cells for energy generation from urine.

From single MFC to cascade configuration: The relationship between size, hydraulic retention time and power density (2016)
Journal Article

© 2016 The Authors. Achieving useful electrical power production with the MFC technology requires a plurality of units. Therefore, the main objective of much of the MFC research is to increase the power density of each unit. Collectives of MFCs will... Read More about From single MFC to cascade configuration: The relationship between size, hydraulic retention time and power density.

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