A novel biofilm photobioreactor using light guide plate enhances the hydrogen production

作者：Fu, Qian^*; Li, Yishan; Zhong, Nianbing; Liao, Qiang^*; Huang, Yun; Xia, Ao; Zhu, Xun; Hou, Yunpeng

来源：International Journal of Hydrogen Energy, 2017, 42(45): 27523-27531.

DOI：10.1016/j.ijhydene.2017.05.182

• Biohydrogen production
• Bacteria immobilization
• Biofilm
• Light guide-plate photobioreactor

A novel biofilm photobioreactor (BPBR) using light guide plate (LGP) as light guider and biofilm support material was proposed to improve the hydrogen production. To further improve the biocompatibility and roughness of LGP surface, it was modified with SiO(2)chitosan-medium (SCM) biomaterial. The luminous intensity on the surface of LGP and SCM-LGP were 10.1 W/m(2) and 7.8 W/m(2), respectively, much higher than that (2.8 W/m(2)) of the traditional polymethyl methacrylate (PMMA) flat-plate. The hydrogen production rate (HPR) of the BPBRs using LGP and SCM-LGP were 8.9 mmol/h/m(2) and 11.6 mmol/h/m(2), which were 0.62 and 1.11 times higher than that of the traditional BPBR using PMMA, respectively. In addition, the biofilm analysis including SEM and dry biofilm density showed that SCM-LGP was more suitable for the formation of biofilms relative to LGP and PMMA. These results suggested that the proposed BPBRs have great potential for immobilized cell technologies and biohydrogen production.

• 出版日期2017-11-9
• 单位重庆大学; 重庆理工大学