Record number :
Title of article :
Enhanced bio-hydrogen production from corn stalk by anaerobic fermentation using response surface methodology
Author/Authors :
Xing، نويسنده , , Yan and Fan، نويسنده , , Shao-Qun and Zhang، نويسنده , , Jing-Nan and Fan، نويسنده , , Yaoting and Hou، نويسنده , , Hong-Wei، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
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Abstract :
The key process parameters of solid state enzymolysis for the generation of soluble sugar (SS) and bio-hydrogen production from corn stalk were optimized by the response surface methodology (RSM) based on a three factor-five level central composite design (CCD), respectively. The result showed that the optimal solid state enzymolysis condition from corn stalk was 47.7 °C, SCED of 0.054 g/g and 10.3 days for the maximum SS yield of 526 mg/g-TVS. Correspondingly, the optimal enzymolysis conditions from corn stalk appeared at 46.3 °C, SCED of 0.049 g/g and 7.5 days for the maximum hydrogen yield of 205.5 mL/g-TVS from the hydrolyzed substrate by the next dark fermentation. In addition, the bio-hydrogen production mechanism from corn stalk was preliminary investigated by XRD and SEM analyses. The results suggested that the solid state enzymolysis of substrate played a vital role in the effective conversion of corn stalk into bio-hydrogen by dark fermentation.
Keywords :
Solid state enzyme hydrolysis , Biodegradation mechanism , Response surface methodology , Corn stalk , Bio-hydrogen , Fermentation
Journal title :
International Journal of Hydrogen Energy
Link To Document :