کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1277619 | 1497625 | 2009 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Continuous biohydrogen production from liquid swine manure supplemented with glucose using an anaerobic sequencing batch reactor Continuous biohydrogen production from liquid swine manure supplemented with glucose using an anaerobic sequencing batch reactor](/preview/png/1277619.png)
Liquid swine manure supplemented with glucose (10 g/L) was used as substrate for hydrogen production using an anaerobic sequencing batch reactor at 37 ± 1 °C and pH 5.0 under different hydraulic retention times (HRTs). Decreasing HRT from 24 to 8 h caused an increasing hydrogen production rate from 0.05 to 0.15 L/h/L. Production rates of both total biogas and hydrogen were linearly correlated to HRT with R2 being 0.993 and 0.997, respectively. The hydrogen yield ranged between 1.18 and 1.63 mol-H2/mol glucose and the 12 h HRT was preferred for high production rate and efficient yield. For all the five HRTs examined, the glucose utilization efficiency was over 98%. The biogas mainly consisted of carbon dioxide and hydrogen (up to 43%) with no methane detected throughout the experiment. Ethanol and organic acids were the major aqueous metabolites produced during fermentation, with acetic acid accounting for 56–58%. The hydrogen yield was found to be related to the acetate/butyrate ratio.
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 16, August 2009, Pages 6636–6645