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  • optimization of biological hydrogen production for anaerobic co-digestion of food waste and wastewater biosolids

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 563
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     batch anaerobic co-digestion studies were conducted using 21 mixtures (m1–m21) of food waste (fw), primary sludge (ps), and waste activated sludge (was) at 37 °c and an initial ph of 5.5 ± 0.2. the results showed that co-digestion of fw and sludges had a positive impact on the hydrogen production. the maximum hydrogen yields by co-digestion of fw + ps, fw + was, and fw + ps + was were achieved at volumetric ratios of 75:25, 75:25, and 80:15:5, respectively, with corresponding optimal cod/n mass ratios of 26, 31 and 30, respectively. furthermore, the synergistic effect of co-digestion was proven and quantified: the measured hydrogen productions were higher than the sums of the hydrogen productions calculated from each fraction, and the highest percentage increase above the calculated value of 101%, was achieved in the fw + ps + was mixture (80:15:5).

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