In order to improve H2 utilization efficiency and to reduce energy consumption during the hydrogenotrophic sulfate reduction process, a two-chambered microbial electrolysis system (MES) with a biocathode was constructed. The performance of MES in terms of sulfate removal and the electron utilization was studied. With an applied voltage of 0.8 V, biocathode removed about 109.8 mg x L(-1) of SO4(...

Microbial electrolysis cell (MEC) is a gripping bio-electrochemical device producing H2 gas from renewable biomass while at the same time treat wastewater.  Through extensive global research efforts in the latest decade, the performance of MECs, including energy efficiency, hydrogen production rate (HPR), and hydrogen recovery have achieved significant breakthroughs. However, employi...

Microbial electrolysis cell (MEC) is a gripping bio-electrochemical device producing H2 gas from renewable biomass while at the same time treat wastewater.  Through extensive global research efforts in the latest decade, the performance of MECs, including energy efficiency, hydrogen production rate (HPR), and hydrogen recovery have achieved significant breakthroughs. However, employi...

Intermittent operation of bioanodes influences electron storage in the electroactive biofilm.Longer-term carry over polymers is an unexplored mechanism.Microbial electrochemical technologies are unique because electrodes provide a new way to control biological conversions.Understanding may ways influence selectivity biotechnological processes. Microbial (METs) promising for sustainable applicat...

Electro-fermentation (EF) and microbial CO2 electrosynthesis (MES) are emerging interdisciplinary technologies that can produce renewable carboxylic acids.A newly discovered photo-decarboxylase offers an innovative route for bio-alkane production from acids.The cascading photo/bio/electrochemical system advanced bio-alkanes (CnH2n+2, n = 2 to 5) biomass CO2.Systems will require optimisation red...

•CO2 conversion via EMC2 intermediate•Soluble C2 intermediates play critical roles in the efficient integration•Systematic design enables continuous and rapid of CO2 to bioproducts•EMC2 produces PHA with substantially improved productivity product chain length The research uniquely addresses two daunting challenges our generation faces: global climate change plastic waste accumulation. We demon...

•We realized CO2 to protein in a two-stage bioinorganic electrosynthesis system•We clarified how key factors of inflow and voltage affected this bioconversion•We revealed the importance O2-level control for maximizing production•This process with renewable feedstocks is independent conventional agriculture The rapid growth global population will double demand by 2050. However, ways production n...