Evaluation of process performance on biohydrogen production in continuous fixed bed reactor (C-FBR) using acid algae hydrolysate (AAH) as feedstock

Parthiban Anburajan, Jeong Jun Yoon, Gopalakrishnan Kumar, Jong Hun Park, Sang Hyoun Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, a novel inoculation method to mitigate the inhibition of 5-hydroxymethylfurfural (5-HMF) is proposed. Acid algae hydrolysate containing 1.5 g 5-HMF/L and 15 g hexose/L hexose was fed to a continuous fixed bed reactor (C-FBR) partially packed with hybrid-immobilized beads. The inoculation method enabled a high rate of H 2 production, due to the reduction of 5-HMF inhibition and enhanced biofilm formation. Maximum hydrogen production was achieved at a hydraulic retention time of 6 h with a hydrogen production rate (HPR) of 20.0 ± 3.3 L H 2 /L-d and a hydrogen yield (HY) of 2.3 ± 0.4 mol H 2 /mol hexose added . Butyrate and acetate were the major soluble metabolic products released during fermentation. Quantitative real-time polymerase chain reaction analysis revealed that Clostridium butyricum comprised 94.3% of the total bacteria, which was attributed to the high rate of biohydrogen production.

Original languageEnglish
Pages (from-to)2164-2169
Number of pages6
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusPublished - 2019 Jan 22

All Science Journal Classification (ASJC) codes

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

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