title: Hydrogen production from sugar beet juice using an integrated biohydrogen process of dark fermentation and microbial electrolysis cell.
abstract: An integrated dark fermentation and microbial electrochemical cell (MEC) process was evaluated for hydrogen production from sugar beet juice. Different substrate to inoculum (S/X) ratios were tested for dark fermentation, and the maximum hydrogen yield was 13% of initial COD at the S/X ratio of 2 and 4 for dark fermentation. Hydrogen yield was 12% of initial COD in the MEC using fermentation liquid end products as substrate, and butyrate only accumulated in the MEC. The overall hydrogen production from the integrated biohydrogen process was 25% of initial COD (equivalent to 6 mol H2/mol hexoseadded), and the energy recovery from sugar beet juice was 57% using the combined biohydrogen.
authors.affiliation: Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
authors.forename: Bipro Ranjan
authors.initials: BR
authors.lastname: Dhar
authors.affiliation: Civil Engineering, Ryerson University, Toronto, Ontario M5B 2K3, Canada.
authors.forename: Elsayed
authors.initials: E
authors.lastname: Elbeshbishy
authors.affiliation: GreenField Ethanol Inc., Chatham, Ontario N7M 5J4, Canada.
authors.forename: Hisham
authors.initials: H
authors.lastname: Hafez
authors.affiliation: Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada. Electronic address: hyungsool@uwaterloo.ca.
authors.forename: Hyung-Sool
authors.initials: HS
authors.lastname: Lee
mesh_terms: D027461:Beta vulgaris / Q000378:metabolism*; D004572:Electrolysis / Q000379:methods; D005285:Fermentation / Q000502:physiology*; D006859:Hydrogen / Q000378:metabolism*
chemical_list: D006859:Hydrogen
keywords: Dark fermentation; Fermentation effluent; Hydrogen; Microbial electrolysis cell; Sugar beet juice