Comparison of upflow anaerobic sludge blanket (UASB) and packed bed reactor (PBR) for biohydrogen production

Buchun Si, Jiaming Li, Zhi Qu, Baoming Li, Xin Hui Xing, Yuanhui Zhang, Zhidan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is attractive to produce biohydrogen through high-rate reactors due to their ability of maintaining higher biomass concentrations by forming granules or biofilms. Here, upflow anaerobic sludge blanket (UASB) and packed bed reactor (PBR) fed with artificial wastewater were compared to study the effect of reactor configuration on hydrogen production. UASB and PBR were operated under the same conditions for 120 days at HRTs of 24-12 h and organic loading rates (OLRs) of 0.96-15.36g COD/L/d. PBR was filled with polyethylene rings, whereas UASB was amended with carbon nanotubes (CNTs) at 100 mg/L. At an OLR of 15.36 g COD/L/d, both UASB and PBR achieved maximal hydrogen production rates as 2.77 ±0.18 and 1.29 ±0.09 L/L/d, respectively, corresponding to hydrogen yields of 1.43 and 0.67 mol/mol glucose. Hydrogen contents in UASB and PBR were 47.8±0.7% and 32.6±0.7% (v/v). However, methane contents were <1% and 12.4±0.7%, respectively. The current study demonstrates that reactor configuration significantly influenced microbial activities and biohydrogen production.

Original languageEnglish (US)
Title of host publication20th World Hydrogen Energy Conference, WHEC 2014
PublisherCommittee of WHEC2014
Pages347-354
Number of pages8
ISBN (Electronic)9780000000002
StatePublished - 2014
Event20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju, Korea, Republic of
Duration: Jun 15 2014Jun 20 2014

Publication series

Name20th World Hydrogen Energy Conference, WHEC 2014
Volume1

Other

Other20th World Hydrogen Energy Conference, WHEC 2014
CountryKorea, Republic of
CityGwangju
Period6/15/146/20/14

Keywords

  • Biohydrogen production
  • Packed bed reactor
  • Reactor configuration
  • Upflow anaerobic sludge blanket

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology

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