Hydrogen production from cellulose in a two-stage process combining fermentation and electrohydrogenesis

Design of a single chambered microbial electrolytic cell reactor for production of biohydrogen from rice straw hydrolysate

“…Effluents obtained from the dark fermentation of lignocellulosic biomass or cellulose powder, rich in oxidised compounds, such as acetate and butyrate, have also been used as substrates for electrohydrogenesis. Lalaurette et al (2009) used fermentation effluent of corn stover as substrate and reported an yield of 750 ± 180 ml H 2 g -1 COD removal with an energy efficiency as high as 230 ± 50 % with net COD removal of 65 %. Similarly, Wang et al (2011) used fermentation effluent of cellulose as a substrate and reported an yield of 14.3 mmol H 2 g -1 COD removal with an energy efficiency of 64 % and coulombic efficiency of 48 %.…”

Development of Bioelectrochemical Systems to Promote Sustainable Agriculture

“…In addition to electricity generation, hydrogen gas can also be produced from cellulose in MECs [51,52]. For example, a fermentation-MEC integrated process was used to convert lignocellulose into hydrogen gas [51].…”

“…For example, a fermentation-MEC integrated process was used to convert lignocellulose into hydrogen gas [51]. The inoculum of the MEC came from multiple MFCs pre-acclimated to a single substrate, resulting in an improvement in the hydrogen yield and gas production rate.…”

Hydrogen production from continuous flow, microbial reverse-electrodialysis electrolysis cells treating fermentation wastewater

“…Higher hydrogen gas production rates could possibly be obtained by using higher MREC influent COD concentrations, as this should increase COD removal rate and stabilize anode potentials. The fermentation wastewater examined here was diluted to a concentration to be similar to those previously used in MECs (Lalaurette et al, 2009;Nam et al, 2012;Nam et al, , 2014Ullery and Logan, 2014), so the use of higher influent COD concentrations could easily be achieved. The effect of organic loading on the MREC performance, in terms of anode potentials and hydrogen gas production rates, should therefore be examined in future studies.…”

“…Dark fermentation can be used for conversion of waste biomass into hydrogen gas at high rates, but the process effluent contains high concentrations of organic acids and other end products that cannot be further converted to hydrogen in that process (Levin et al, 2006;Magnusson et al, 2008;Show et al, 2010). Microbial electrolysis cells (MECs) have been used as a secondary stage to produce additional hydrogen, but they require additional electrical energy to produce the potential required for hydrogen evolution at the cathode Lalaurette et al, 2009;Lee and Rittmann, 2010;Nam et al, 2014).…”