A slurry electrode integrated with membrane electrolysis for high-performance acetate production in microbial electrosynthesis

Carbon dioxide to bio-oil in a bioelectrochemical system-assisted microalgae biorefinery process

“…Jiang et al achieved a maximum acetate concentration of 13.4 g L À1 using a slurry electrode composed of a stainless steel brush and powdered activated carbon (5 g L À1 ), almost threefold the concentration obtained with a stainless steel brush alone. 40 Mohanakrishna et al, (2020) achieved a maximum acetate production of 260 mg L À1 d À1 by adding a supplementary inorganic carbon source (15 g HCO 3 À per L) to the solution. These previous results showed the relevance of those obtained in the present study with CO 2 as the only carbon source.…”

How to go beyond C1 products with electrochemical reduction of CO2

“…Besides, mixed microbial communities can be directly enriched from environmental samples such as activated or digested sludge, anaerobic digester effluents or river sediments. [199][200][201][202][203] In a controlled environment such as in Bio-Electrochemical Systems (BES) and the presence of methane inhibitor, the enrichment of acetogenic bacteria from environmental inocula was very oen reported, which is consistent with the production of Volatile Fatty Acids (VFAs) and alcohols. For example, it was reported in several studies that organisms belonging to the genus Clostridium and Acetobacter dominated both the biolm and the planktonic microbial communities of a BES producing VFAs and alcohols from CO 2 conversion.…”

Tuning of Electrode Surface for Enhanced Bacterial Adhesion and Reactions: A Review on Recent Approaches

“…Unlike in traditional methods, the electrosynthesis route does not need elevated operating conditions (high temperature or pressure) or longer reaction times, and it can be effectively controlled by varying the operating current/voltage. 10,102,103 As the electrochemical reactions are easy to scale up, the electrosynthesis technique also finds potential industrial applications. The electrosynthesis can be made more environmentally benign by avoiding the use of hazardous components (corrosive solvents, supporting electrolytes, additives etc.)…”

“…In search of green and economical methods for the synthesis of small organic molecules by the global scientific community to avoid the use of toxic reagents, electrosynthesis has been recognized as one of the efficient methodologies over the past few decades. Unlike in traditional methods, the electrosynthesis route does not need elevated operating conditions (high temperature or pressure) or longer reaction times, and it can be effectively controlled by varying the operating current/voltage. ,, As the electrochemical reactions are easy to scale up, the electrosynthesis technique also finds potential industrial applications. The electrosynthesis can be made more environmentally benign by avoiding the use of hazardous components (corrosive solvents, supporting electrolytes, additives etc.)…”