کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1273310 | 1497610 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biohydrogen production from cornstalk wastes by anaerobic fermentation with activated sludge
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An anaerobic fermentation process to produce hydrogen from cornstalk wastes was systematically investigated in this work. Batch experiments numbered series I, II and III were designed to investigate the effects of acid pretreatment, enzymatic hydrolysis (enzymatic temperature, enzymatic time and enzymatic pH) on hydrogen production by using the natural sludge as inoculant. A maximum cumulative H2 yield of 126.22 ml gâ1-CS (Cornstalk, or 146.94 ml gâ1-TS, Total Solid) and an average H2 production rate of 9.58 ml gâ1-CS hâ1 were obtained from fermentation cornstalk with a concentration of 20 g/L and an initial pH of 7.0 at 36 °C through an optimal pretreatment process. The optimal process was that the substrate was soaked with an HCl concentration of 0.6 wt% at 90 °C for 2 h, and subsequently enzymatic hydrolysis for 72 h at 50 °C and pH 4.8 before fermentation. The biogas consisted of only H2 and CO2. In addition, the fermentation system was the typical ethanol-type fermentation according to ethanol and acetate as the main liquid by-products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 7, April 2010, Pages 3092-3099
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 7, April 2010, Pages 3092-3099
نویسندگان
Yu Wang, Hui Wang, Xiaoqiong Feng, Xiaofang Wang, Jianxin Huang,