Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Bioelectrochemical Systems (BES) for Biomethane Production – Review

Version 1 : Received: 13 June 2023 / Approved: 14 June 2023 / Online: 14 June 2023 (04:02:51 CEST)

A peer-reviewed article of this Preprint also exists.

Horváth-Gönczi, N.N.; Bagi, Z.; Szuhaj, M.; Rákhely, G.; Kovács, K.L. Bioelectrochemical Systems (BES) for Biomethane Production—Review. Fermentation 2023, 9, 610. Horváth-Gönczi, N.N.; Bagi, Z.; Szuhaj, M.; Rákhely, G.; Kovács, K.L. Bioelectrochemical Systems (BES) for Biomethane Production—Review. Fermentation 2023, 9, 610.

Abstract

Bioelectrochemical systems (BESs) have great potential in renewable energy production technologies. BES can generate electricity via Microbial Fuel Cell (MFC) or use the electric current for the synthesis of valuable commodities in Microbial Electrolysis Cells (MECs). The number of various reactor configurations and operational protocols increasing rapidly although, the industrial scale operation is still facing difficulties. This article reviews the recent BES related to literature, with special attention to electrosynthesis and the most promising reactor configurations. We also attempted to clarify the numerous definitions proposed for BESs. The main components of BES are highlighted. Although the comparison of the various fermentation systems is we collected useful and generally applicable operational parameters to be used for comparative studies. A brief overview to link the appropriate microbes to the optimal reactor design is given.

Keywords

bioelectrochemical systems (BES); microbial electrolysis cells (MEC); reactor configurations; electro-fermentation; biomethane; direct electron transfer (DIET)

Subject

Biology and Life Sciences, Biology and Biotechnology

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