کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1274558 | 1497549 | 2012 | 7 صفحه PDF | دانلود رایگان |
Hydrogen (H2) has become a promising energy source because it is clean and has high-energy potential. The aim of this research was to enhance the H2 production efficiency under anaerobic condition by addition of calcium ions (Ca2+) in a fluidized bed reactor (FBR) with immobilized cells. Ca2+ ions were added either in the form of Ca(OH)2 or CaCl2. Immobilized cells were prepared by physical adsorption with activated carbon (AC). The experiments were carried out in a FBR system. The H2 production performance of the FBR fed with sucrose-based synthetic medium, was evaluated under various influent Ca2+ concentrations [Ca2+] (50, 100 and 200 ppm) and hydraulic retention times (HRTs) (8, 6, 4 and 2 h). The peak value of 1.22 L/h-L was obtained at [Ca2+] 100 ppm, irrespective of the form of Ca2+ ion added, and at the HRT of 2 h. Although the results were similar for different forms of Ca2+ ions, the presence of Ca2+ ions enhanced the H2 producing bioprocess by 12–18%.
► A fluidized bed reactor for bioH2 production with immobilized cell was study.
► Immobilized cell was prepared by a physical adsorption with activated carbon.
► Adding proper concentration of calcium ion could enhance bioH2 producing.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 20, October 2012, Pages 15496–15502