Jump to main content
Jump to site search

Issue 64, 2016, Issue in Progress
Previous Article Next Article

High-rate hydrogen production from galactose in an upflow anaerobic sludge blanket reactor (UASBr)

Author affiliations

Abstract

High-rate hydrogen production from galactose and rapid granule formation were achieved in a mesophilic (37 °C) upflow anaerobic sludge blank reactor (UASBr). Hybrid immobilized cells were seeded to a CSTR fed with galactose (15 g L−1) at a hydraulic retention time (HRT) of 12 h for 12 days, after which the mixed liquor from the CSTR was transferred to the UASBr. Rapid granule formation was observed after 5 days of initial UASBr operation at 6 h HRT and further enhanced at 3 h HRT. The peak hydrogen production rate (HPR) and hydrogen yield (HY) of 32.7 L L−1 d−1 and 1.95 mol mol−1 galactose were attained at the HRT of 3 h with an organic loading rate (OLR) of 120 g L−1 d−1. Microbial community analysis characterized by pyrosequencing of 16S rRNA genes showed that the proportion of Clostridium increased during the HRT at 3 h, whereas Bacilli proportions dominated at 6 h HRT.

Graphical abstract: High-rate hydrogen production from galactose in an upflow anaerobic sludge blanket reactor (UASBr)

Back to tab navigation

Publication details

The article was received on 11 Apr 2016, accepted on 05 Jun 2016 and first published on 07 Jun 2016


Article type: Paper
DOI: 10.1039/C6RA09298E
RSC Adv., 2016,6, 59823-59833

  •   Request permissions

    High-rate hydrogen production from galactose in an upflow anaerobic sludge blanket reactor (UASBr)

    P. Sivagurunathan, P. Anburajan, G. Kumar, T. Kobayashi, K. Q. Xu, C. Lee and S. Kim, RSC Adv., 2016, 6, 59823
    DOI: 10.1039/C6RA09298E

Search articles by author

Spotlight

Advertisements