Microbial Electrochemical Technology

S. Venkata Mohan, Sunita Varjani, Ashok Pandey
Published in: Elsevier
Release Year: 2019
ISBN: 978-0-444-64052-9
Pages: 1101
Edition: 1st
File Size: 58 MB
File Type: pdf
Language: English

Description of Microbial Electrochemical Technology

Renewable energy generation using microbial catalyzed fuel cells is gaining prominence for its potential as an alternative and sustainable route. Scanning through the literature, the first report on origin of electrical effects through microbial catalyzed reactions was reported by Galvani in 1789 in “frog muscles twitching with copper-zinc couples.” Subsequently, M.C. Potter in 1911 reported electrical effect accompanying the decomposition of organic compounds in presence of microorganisms such as Saccharomyces or bacteria. It remained as one of the earliest observations until 1980s, where research on synthetic mediators has lightened up the idea of using bacteria-catalyzed fuel cells later termed as “microbial fuel cells (MFC).” However, from 2000 onward the concept has resurfaced and gained significant attention in the research fraternity due to its inherent scope for wider application, initially with specific focus on renewable energy generation and later by integrated with waste remediation.
Understanding on this concept has been rapidly stretched to cover several domains and applications since the past 15 years, giving rise to development of “microbial electrochemical technology (MET)” as a platform technology. In this course of development, METs have sprung into current research paving a newfound path for renew- able energy/fuel generation, chemicals synthesis, and waste remediation. METs with their malleable nature have been significantly diversified to find their applications in bio-electricity generation (as MFC), bio-based platform chemical synthesis (as bioelectrochemical systems [BES]), hydrogen/methane/hythane production (as microbial electrolysis cell [MEC]), water desalination (as microbial desalination cell [MDC]), enhanced bioprocess (as electro-fermentation [EF]) and waste remediation (as bioelectrochemical treatment system [BET]). Each of these bio-electro-mediated processes can be individually integrated with acidogenesis, photosynthesis, and bioanoxygenesis cascadically to close the loop enabling a zero waste technology.
MET can be potentially established as a sustainable alternate with the energy harnessed being clean, green, and renewable in nature. These applications in numerous mundane activities has potential to lower the carbon footprint on the environment and garner significance toward a bio-based circular bioeconomy. In this context, this book “Microbial Electrochemical Technology: Sustainable Platform for Fuels, Chemicals and Remediation” aims to comprehensively bring forth the recent scientific developments in this domain. Microbial Electrochemical Technology book aimed to disseminate the wide information on diverse applications of METs at one juncture as a single source, describing details about materials, biocatalysts, design, and configurations as well as understanding the process mechanism. The primary focus is to draw attention in terms of improving microbial electrometabolism, bioelectrogenesis, multiple product synthesis, complex waste remediation, carbon dioxide sequestration, etc., along with discussing the major bottlenecks that need to be addressed. The interdisciplinary approach encompasses electrochemistry, material science, microbiology, bioengineering, energy engineering, environmental management, etc., that are essential to scale up the process with economic viability and socioeconomic acceptance. The chapters were written by experienced researchers who have been working in the interface of electrochemistry and biotechnology. The progress and developments in MET were comprehensively out lined under six broad themes.
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