Continuous biohydrogen production from liquid swine manure supplemented with glucose using an anaerobic sequencing batch reactor

Xiao Wu, Jun Zhu, Chunying Dong, Curt Miller, Yecong Li, Liang Wang, Wanying Yao

    Research output: Contribution to journalArticle

    52 Scopus citations

    Abstract

    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.

    Original languageEnglish (US)
    Pages (from-to)6636-6645
    Number of pages10
    JournalInternational Journal of Hydrogen Energy
    Volume34
    Issue number16
    DOIs
    StatePublished - Aug 1 2009

    Keywords

    • Dark fermentation
    • Hydraulic retention time (HRT)
    • Hydrogen production rate
    • Hydrogen yield
    • Liquid swine manure
    • Sludge granulation

    Fingerprint Dive into the research topics of 'Continuous biohydrogen production from liquid swine manure supplemented with glucose using an anaerobic sequencing batch reactor'. Together they form a unique fingerprint.

  • Cite this