title: Enhanced photo-H₂ production by unsaturated flow condition in continuous culture.
abstract: A biofilm photobioreactor under unsaturated flow condition (BFPBR-U) is proposed using a polished optical fiber as the internal light source for photo-H2 production in continuous culture. The main chamber was filled with spherical glass beads to create the reaction bed and the cells were immobilized to form a biofilm under unsaturated flow condition obtained by pumping substrate solution over a packing bed at a rate to create a thin fluid film and injecting the argon to maintain the gas phase space. The effects of operational conditions, including flow rate and influent substrate concentration, on the photo-H2 production performance were investigated. The unsaturated flow conditions eliminated the inhibition caused by high organic loading rate and enhanced light transmission efficiency, leading to an improvement in the photo-H2 production performance.
authors.affiliation: School of Electric Power Engineering, China University of Mining and Technology, Xuzhou, 221116, China, clguo@cumt.edu.cn.
authors.forename: Cheng-Long
authors.initials: CL
authors.lastname: Guo
authors.forename: Hong-Xia
authors.initials: HX
authors.lastname: Cao
authors.forename: Fei-Qiang
authors.initials: FQ
authors.lastname: Guo
authors.forename: Cong-Liang
authors.initials: CL
authors.lastname: Huang
authors.forename: Huan-Guang
authors.initials: HG
authors.lastname: Wang
authors.forename: Zhong-Hao
authors.initials: ZH
authors.lastname: Rao
mesh_terms: D018441:Biofilms; D001709:Biotechnology / Q000295:instrumentation / Q000379:methods*; D003470:Culture Media; D006859:Hydrogen / Q000032:analysis / Q000378:metabolism*; D055100:Optical Fibers; D058433:Photobioreactors / Q000382:microbiology*; D012241:Rhodopseudomonas / Q000378:metabolism
chemical_list: D003470:Culture Media; D006859:Hydrogen