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Microbial Metal Respiration
Microbes can respire on metals. This seemingly simple finding is one of the major discoveries that were made in the field of microbiology in the last few decades. The importance of this observation is evident. Metals are highly abundant on our planet. Iron is even the most abundant element on Earth and the forth most abundant element in the Earth’s crust. Hence, in some environments iron, but also other metals or metalloids, are the dominant respiratory electron acceptors. Their reduction massively drives the carbon cycle in these environments and establishes redox cycles of the metallic electron acceptors themselves. These redox cycles are not only a driving force for other biotic reactio...
The microbial ferrous wheel: iron cycling in terrestrial, freshwater, and marine environments
In the past 15 years, there has been steady growth in work relating to the microbial iron cycle. It is now well established that in anaerobic environments coupling of organic matter utilization to Fe reduction is a major pathway for anaerobic respiration. In iron-rich circumneutral environments that exist at oxic-anoxic boundaries, significant progress has been made in demonstrating that unique groups of microbes can grow either aerobically or anaerobically using Fe as a primary energy source. Likewise, in high iron acidic environments, progress has been made in the study of communities of microbes that oxidize iron, and in understanding the details of how certain of these organisms gain ene...
Bioelectrosynthesis
This volume discusses both the latest experimental research in bioelectrosynthesis and current applications. Beginning with an introduction into the “electrification of biotechnology” as well as the underlying fundamentals, the volume then discusses a wide range of topics based on the interfacing of biotechnological and electrochemical reaction steps. It includes contributions on the different aspects of bioelectrochemical applications for synthesis purposes, i.e. the production of fine and platform chemicals based on enzymatically or microbially catalyzed reactions driven by electric energy. The volume finishes with a summary and outlook chapter which gives an overview of the current status of the field and future perspectives. Edited by experts in the field, and authored by a wide range of international researchers, this volume assesses how research from today’s lab bench can be developed into industrial applications, and is of interest to researchers in academia and industry.
Current Challenges and Future Perspectives on Emerging Bioelectrochemical Technologies
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...
Energie aus Biomasse
Der hier vorliegende dritte Band des dreiteiligen Standardwerks zur Energiegewinnung aus Biomasse widmet sich der bio-chemischen und der physikalisch-chemischen Konversion biogener Ausgangsstoffe. Damit beinhaltet dieser Band Grundlagen zur stofflichen Klassifizierung von Biomasse (einschließlich funktionaler Gruppen), die Behandlung und den Aufschluss sowie Verfahren zur Umwandlung in flüssige bzw. gasförmige Energieträger und Basischemikalien; dabei liegt der Schwerpunkt der Darstellungen auf der Ethanolerzeugung, der Biogasgewinnung und der Pflanzenölherstellung und -weiterverarbeitung, da dies die Optionen sind, die global die größte Marktbedeutung haben. Ressourcen und Bereitstel...
