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Published on: October 5, 2019
Enhanced photo-H₂ production by unsaturated flow condition in continuous culture
Cheng-Long Guo1, Hong-Xia Cao, Fei-Qiang Guo
1School of Electric Power Engineering, China University of Mining and Technology, Xuzhou, 221116, China, clguo@cumt.edu.cn.
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.
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