Abstract：
:Effects of operation parameters on hydrogen production rate, substrate utilization efficiency and hydrogen bioconversion yield were investigated in a photobioreactor packed with sodium alginate/polyvinyl alcohol-124/carrageenan granules containing Rhodopseudomonas palustris CQK 01. Results demonstrate that an increase in influent glucose concentration and flow rate enhanced glucose transport from the bulk liquid into the granules, resulting in high hydrogen production. The bacteria mainly utilized the photo-heterotrophic pathway under optimal light illumination and produced hydrogen at low influent substrate loading, while they produced organic acids at high influent loading. The optimal temperature and pH of the influent medium for hydrogen production were independent of the illumination wavelength. The maximal hydrogen production rate of 2.61mmol/L/h was achieved under illumination at 590nm and 6000lx, a substrate concentration of 60mmol/L, a temperature of 30 degrees C and a pH7 of the influent medium.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wang YZ,Liao Q,Zhu X,Tian X,Zhang Cdoi
10.1016/j.biortech.2010.01.045subject
Has Abstractpub_date
2010-06-01 00:00:00pages
4034-41issue
11eissn
0960-8524issn
1873-2976pii
S0960-8524(10)00102-1journal_volume
101pub_type
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