Toward Practical Implementation of Bioelectrochemical Technologies
Toward Practical Implementation of Bioelectrochemical Technologies

Author: Abdelrhman Mohamed

Publisher:

Published: 2019

Total Pages: 0

ISBN-13:

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The discovery of the ability of microorganisms to exchange electrons with inert electrodes - called electrochemically-active biofilms (EABs) - has triggered new areas in fundamental and applied research. However, advancements in the field have been limited by the scope of available technologies and techniques to study, control and scale up EABs. The overall goal of this dissertation was to address some of the bottlenecks limiting the implementation of bioelectrochemical systems in practical applications. This dissertation presents four examples of such bottlenecks. First, we evaluated field performance of sediment microbial fuel cells (SMFCs) using a novel autonomous, battery-operated device. This research allowed us to determine optimum conditions for energy harvesting from SMFCs constructed in Hot Lake, a remote hypersaline lake in northern Washington. Second, we extended this work to address the limited number of isolated microorganisms known to form EABs, which limits the number and diversity of metabolic traits accessible through microbial electrochemistry. This was done by performing long-term chronoamperometric enrichment in a remote area using a newly developed cost-effective battery-operated deployable potentiostat. We demonstrated its utility through the enrichment of microbial community in four alkaline hot springs in the Heart Lake Geyser Basin in Yellowstone National Park, Wyoming. Third, we addressed the limited strategies to control the potential of MFCs, especially when the reactor feed exhibits high daily and seasonal fluctuations in influent flow rate and characteristics, such as the case in MFCs treating real municipal wastewater. To address this, we developed a switchable dual mode system capable of treating wastewater in self-powered MFC mode as well as under potentiostatic control of anodes and cathodes. We demonstrated this system through the operation of a large laboratory scale reactor and pilot scale operated in a local municipal wastewater treatment plant. Lastly, we investigated the factors affecting the scale up of oxygen reducing cathodic biofilms. This addresses the practical challenges in scaling up bioelectrochemical systems, as previous literature documented a significant decrease in current density when increasing electrode surface area. Collectively, this dissertation presents novel technologies and techniques aimed toward expanding the scope and facilitating practical implementation of bioelectrochemical systems.

Scaling Up of Microbial Electrochemical Systems
Scaling Up of Microbial Electrochemical Systems

Author: Dipak Ashok Jadhav

Publisher: Elsevier

Published: 2022-01-28

Total Pages: 514

ISBN-13: 0323907660

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Scaling Up of Microbial Electrochemical Systems: From Reality to Scalability is the first book of its kind to focus on scaling up of microbial electrochemical systems (MES) and the unique challenges faced when moving towards practical applications using this technology. This book emphasizes an understanding of the current limitations of MES technology and suggests a way forward towards onsite applications of MES for practical use. It includes the basics of MES as well as success stories and case studies of MES in the direction of practical applications. This book will give a new direction to energy researchers, scientists and policymakers working on field applications of microbial electrochemical systems—microbial fuel cells, microbial electrolysis cells, microbial electrosynthesis cells, and more. Promotes the advancement of microbial electrochemical systems, from lab scale to field applications Illustrates the challenges of scaling up using successive case studies Provides the basics of MES technology to help deepen understanding of the subject Addresses lifecycle analysis of MES technology to allow comparison with other conventional methods

Current Challenges and Future Perspectives on Emerging Bioelectrochemical Technologies
Current Challenges and Future Perspectives on Emerging Bioelectrochemical Technologies

Author: Tian Zhang

Publisher: Frontiers Media SA

Published: 2016-08-05

Total Pages: 123

ISBN-13: 2889199045

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The increasing demand for energy worldwide, currently evaluated at 13 terawatts per year, has triggered a surge in research on alternative energy sources more sustainable and environmentally friendly. Bio-catalyzed electrochemical systems (BESs) are a rapidly growing biotechnology for sustainable production of bioenergy and/or value-added bioproducts using microorganisms as catalysts for bioelectrochemical reactions at the electrode surface. In the last decades, this biotechnology has been intensively studied and developed as a flexible and practical platform for multiple applications such as electricity production, wastewater treatment, pollutants remediation, desalination and production of biogas, biofuels, or other commodities. BESs could have a critical impact on societies in many spheres of activity and become one of the solutions to reform our petroleum-based economy. However, BESs research has so far been limited to lab scale with the notable exceptions of pilot scale microbial fuel cells for brewery and winery wastewater treatment coupled with electricity generation. In general, more knowledge has to be acquired to overcome the issues that are stymieing BESs development and commercialization. For example, it is critical to understand better microbial physiology including the mechanisms responsible for the transfer of electrons between the microbes and the electrodes to start optimizing the systems in a more rational manner. There are many BES processes and for each one of them there is a multitude of biological and electrochemical specifications to investigate and adjust such as the nature of the microbial platform, electrode materials, the reactor design, the substrate, the medium composition, and the operating conditions. The ultimate goal is to develop highly energy efficient BESs with a positive footprint on the environment while maintaining low cost and generating opportunities to create value. BESs are complex systems developed with elements found in multiple fields of science such as microbiology, molecular biology, bioinformatics, biochemistry, electrochemistry, material science and environmental engineering. Given the high volume of research activities going on in the field of BESs today, this e-book explores the current challenges, the more recent progresses, and the future perspectives of BESs technologies. The BESs discussed here include microbial fuel cells, microbial electrolysis cells, microbial electrosynthesis cells, microbial electroremediation cells, etc.

Bioelectrochemical Systems
Bioelectrochemical Systems

Author: Prasun Kumar

Publisher: Springer Nature

Published: 2021-02-08

Total Pages: 401

ISBN-13: 9811568685

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This book is the second in a two-volume set devoted to bioelectrochemical systems (BESs) and the opportunities that they may offer in providing a green solution to growing energy demands worldwide. While the first volume explains principles and processes, in this volume established research professionals shed light on how this technology can be used to generate high-value chemicals and energy using organic wastes. Bioelectricity is generated in microbial fuel cells (MFCs) under oxygen-depleted conditions, where microbial bioconversion reactions transform organic wastes into electrons. Dedicated chapters focus on MFCs and state of the art advancements as well as current limitations. In addition, the book covers the use of microbial biofilm- and algae-based bioelectrochemical systems for bioremediation and co-generation of valuable chemicals. A thorough review of the performance of this technology and its possible industrial applications is presented. The book is designed for a broad audience, including undergraduates, postgraduates, energy researchers/scientists, policymakers, and anyone else interested in the latest developments in this field.

Bioelectrochemical Systems
Bioelectrochemical Systems

Author: Korneel Rabaey

Publisher: IWA Publishing

Published: 2009-12-01

Total Pages: 525

ISBN-13: 184339233X

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In the context of wastewater treatment, Bioelectrochemical Systems (BESs) have gained considerable interest in the past few years, and several BES processes are on the brink of application to this area. This book, written by a large number of world experts in the different sub-topics, describes the different aspects and processes relevant to their development. Bioelectrochemical Systems (BESs) use micro-organisms to catalyze an oxidation and/or reduction reaction at an anodic and cathodic electrode respectively. Briefly, at an anode oxidation of organic and inorganic electron donors can occur. Prime examples of such electron donors are waste organics and sulfides. At the cathode, an electron acceptor such as oxygen or nitrate can be reduced. The anode and the cathode are connected through an electrical circuit. If electrical power is harvested from this circuit, the system is called a Microbial Fuel Cell; if electrical power is invested, the system is called a Microbial Electrolysis Cell. The overall framework of bio-energy and bio-fuels is discussed. A number of chapters discuss the basics – microbiology, microbial ecology, electrochemistry, technology and materials development. The book continues by highlighting the plurality of processes based on BES technology already in existence, going from wastewater based reactors to sediment based bio-batteries. The integration of BESs into existing water or process lines is discussed. Finally, an outlook is provided of how BES will fit within the emerging biorefinery area.

Bioelectrochemical Interface Engineering
Bioelectrochemical Interface Engineering

Author: R. Navanietha Krishnaraj

Publisher: John Wiley & Sons

Published: 2019-09-02

Total Pages: 560

ISBN-13: 1119538564

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An introduction to the fundamental concepts and rules in bioelectrochemistry and explores latest advancements in the field Bioelectrochemical Interface Engineering offers a guide to this burgeoning interdisciplinary field. The authors—noted experts on the topic—present a detailed explanation of the field’s basic concepts, provide a fundamental understanding of the principle of electrocatalysis, electrochemical activity of the electroactive microorganisms, and mechanisms of electron transfer at electrode-electrolyte interfaces. They also explore the design and development of bioelectrochemical systems. The authors review recent advances in the field including: the development of new bioelectrochemical configurations, new electrode materials, electrode functionalization strategies, and extremophilic electroactive microorganisms. These current developments hold the promise of powering the systems in remote locations such as deep sea and extra-terrestrial space as well as powering implantable energy devices and controlled drug delivery. This important book: • Explores the fundamental concepts and rules in bioelectrochemistry and details the latest advancements • Presents principles of electrocatalysis, electroactive microorganisms, types and mechanisms of electron transfer at electrode-electrolyte interfaces, electron transfer kinetics in bioelectrocatalysis, and more • Covers microbial electrochemical systems and discusses bioelectrosynthesis and biosensors, and bioelectrochemical wastewater treatment • Reviews microbial biosensor, microfluidic and lab-on-chip devices, flexible electronics, and paper and stretchable electrodes Written for researchers, technicians, and students in chemistry, biology, energy and environmental science, Bioelectrochemical Interface Engineering provides a strong foundation to this advanced field by presenting the core concepts, basic principles, and newest advances.

Development of Novel Bioelectrochemical Membrane Separation Technologies for Wastewater Treatment and Resource Recovery
Development of Novel Bioelectrochemical Membrane Separation Technologies for Wastewater Treatment and Resource Recovery

Author: Yunkun Wang

Publisher: Springer Nature

Published: 2020-03-30

Total Pages: 157

ISBN-13: 9811530785

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The most commonly used biological wastewater treatment technologies still have serious technical-economical and sustainability-related limitations, due to their high energy requirements, poor effluent quality, and lack of energy and resource recovery processes. In this thesis, novel electrochemical membrane bioreactors (EMBRs), which take advantage of membrane separation and bioelectrochemical techniques, are developed for wastewater treatment and the simultaneous recovery of energy and resources. Above all, this innovative system holds great promise for the efficient wastewater treatment and energy recovery. It can potentially recover net energy from wastewater while at the same time harvesting high-quality effluent. The book also provides a proof-of-concept study showing that electrochemical control might offer a promising in-situ means of suppressing membrane fouling. Lastly, by integrating electrodialysis into EMBRs, phosphate separation and recovery are achieved. Hence, these new EMBR techniques provide viable alternatives for sustainable wastewater treatment and resource recovery.

Photosynthesis-Assisted Energy Generation
Photosynthesis-Assisted Energy Generation

Author: Sathish-Kumar Kamaraj

Publisher: John Wiley & Sons

Published: 2024-03-06

Total Pages: 420

ISBN-13: 1394172303

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Photosynthesis-Assisted Energy Generation Describes the mechanisms of and potential for using microorganisms and plants as renewable power resources Bridging the knowledge gap between the fundamentals and the technological advances in biological photosynthesis-assisted energy generation, Photosynthesis-Assisted Energy Generation explores the various diverse light-harvesting biological systems for electricity generation and explains the fundamentals and applications from lab-scale to in-field. The text discusses the fundamentals of electron transfer mechanisms in photosynthetic systems, basic principles of bioelectricity generation, and materials involved in the construction of fuel cells, including not only the impact of higher plants, but also anoxygenic and oxygenic photosynthetic bacteria and microalgae on the performance of photosynthesis-assisted power generation systems. A timely resource, the text features case studies on emerging topics such as mosses in power generation on green roofs and photo-bioelectrochemical fuel cells for antibiotics and dyes removal, along with discussion of sustainability issues when scaling up bio-photo-electrochemical systems. Edited by two highly qualified and accomplished academics with significant research experience in the field, Photosynthesis-Assisted Energy Generation includes information on: Role of functional materials involved in photosynthesis-assisted power generation and non-noble electrocatalysts as air cathodes in biocells Electricity generation and intensified synthesis of nutrients by plant-based biofuel cells using duckweeds as biocatalysts Algae-based microbial fuel cells, photosynthetic bacteria-based microbial fuel cells, and bryophyte microbial fuel cell systems Progress and recent trends of application of low-energy consuming devices and IoT based on photosynthesis-assisted power generation Plant-based microbial fuel cells for bioremediation, biosensing, and plant health monitoring With full coverage of an attractive renewable energy generation system, Photosynthesis-Assisted Energy Generation is an essential resource on the subject for researchers and scientists interested in alternative renewable energetics and photosynthesis-assisted energy generation processes utilizing microorganisms, algae, plants, and other bioinspired materials.

Resource Recovery in Municipal Waste Waters
Resource Recovery in Municipal Waste Waters

Author: Mika Sillanpaa

Publisher: Elsevier

Published: 2023-07-20

Total Pages: 419

ISBN-13: 0323993494

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Resource Recovery in Municipal Waste Waters provides various municipal wastewater remediation methods and techniques to recover materials from such wastewaters. Sections cover the basic principles of resource recovery, along with the recovery of methane, phosphorous, electricity and metals. The volume covers comprehensive cutting-edge techniques for resource recovery and municipal wastewater treatment and reports on new findings in these areas. It also introduces polluted waters as new and sustainable sources rather than seeing wastewaters as a source of hazardous organic and inorganic matters. The main advantages and disadvantages of both wastewater/polluted water treatment and recovery are also discussed. This three-volume set stresses the importance of contaminated waters remediation, including surface waters, municipal or industrial wastewaters, treating these waters as a new source of nutrients, minerals and energy. Provides technologies, advances and methods in municipal wastewater resource recovery Discusses the recovery of materials, including methane, phosphorous, metals and electricity Describes currently used technologies in wastewater remediation, along with potential applications

New Technologies for Electrochemical Applications
New Technologies for Electrochemical Applications

Author: Mu. Naushad

Publisher: CRC Press

Published: 2020-02-10

Total Pages: 289

ISBN-13: 0429578016

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The field of electrochemistry is exploring beyond its basic principles to innovation. New Technologies for Electrochemical Applications presents advancements in electrochemical processes, materials, and technology for electrochemical power sources such as batteries, supercapacitors, fuel cells, hydrogen storage and solar cells. It also examines various environmental applications such as photo electrochemistry, photosynthesis, and coating. Organized to give readers an overview of the current field in electrochemical applications, this book features a historical timeline of advancements and chapters devoted to the topics of organic material and conducting polymers for electrochemical purposes. Established experts in the field detail state-of-the-art materials in biosensors, immunosensors, and electrochemical DNA. This edited reference is a valuable resource for graduate and post-graduate students, and researchers in disciplines such as chemistry, physics, electrical engineering and materials science.