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  • coproduction of hydrogen and methane via anaerobic fermentation of cornstalk waste in continuous stirred tank reactor integrated with up-flow anaerobic sludge bed

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 537
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
      a 10 l continuous stirred tank reactor (cstr) system was developed for a two-stage hydrogen fermentation process with an integrated alkaline treatment. the maximum hydrogen production rate reached 218.5 ml/l h at a cornstalk concentration of 30 g/l, and the total hydrogen yield and volumetric hydrogen production rate reached 58.0 ml/g-cornstalk and 0.55–0.57 l/l d, respectively. a 10 l up-flow anaerobic sludge bed (uasb) was used for continuous methane fermentation of the effluents obtained from the two-stage hydrogen fermentation. at the optimal organic loading rate of 15.0 g-cod/l d, the cod removal efficiency and volumetric biogas production rate reached 83.3% and 4.6 l/l d, respectively. total methane yield reached 200.9 ml/g-cornstalk in anaerobic fermentation with the effluents and alkaline hydrolysate. as a result, the total energy recovery by coproduction of hydrogen and methane with anaerobic fermentation of cornstalk reached 67.1%.

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