Effects of anti-foaming agents on biohydrogen production

Periyasamy Sivagurunathan, Parthiban Anburajan, Gopalakrishnan Kumar, Péter Bakonyi, N. Nemestóthy, K. Bélafi-Bakó, Sang Hyoun Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effects of antifoaming agents on fermentative hydrogen production using galactose in batch and continuous operations were investigated. Batch hydrogen production assays with LS-303 (dimethylpolysiloxane), LG-109 (polyalkylene), LG-126 (polyoxyethylenealkylene), and LG-299 (polyether) showed that the doses and types of antifoaming agents played a significant role in hydrogen production. During batch tests, LS-303 at 100μL/L resulted in the maximum hydrogen production rate (HPR) and hydrogen yield (HY) of 2.5L/L-d and 1.08mol H2/mol galactoseadded, respectively. The following continuously stirred tank reactor operated at 12h HRT with LS-303 at 100μL/L showed a stable HPR and HY of 4.9L/L-d and 1.17mol H2/mol galactoseadded, respectively, which were higher than those found for the control reactor. Microbial community analysis supported the alterations in H2 generation under different operating conditions and the stimulatory impact of certain antifoaming chemicals on H2 production was demonstrated.

Original languageEnglish
JournalBioresource Technology
DOIs
Publication statusAccepted/In press - Dec 29 2015

Fingerprint

Blowing agents
Hydrogen production
hydrogen
Antifoaming Agents
Hydrogen
Dimethylpolysiloxanes
Polyethers
Galactose
Assays
foaming agent
effect
microbial community
assay

Keywords

  • Anti-foaming agents
  • CSTR
  • Galactose
  • Hydrogen production rate
  • Microbial community

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Effects of anti-foaming agents on biohydrogen production. / Sivagurunathan, Periyasamy; Anburajan, Parthiban; Kumar, Gopalakrishnan; Bakonyi, Péter; Nemestóthy, N.; Bélafi-Bakó, K.; Kim, Sang Hyoun.

In: Bioresource Technology, 29.12.2015.

Research output: Contribution to journalArticle

Sivagurunathan, Periyasamy ; Anburajan, Parthiban ; Kumar, Gopalakrishnan ; Bakonyi, Péter ; Nemestóthy, N. ; Bélafi-Bakó, K. ; Kim, Sang Hyoun. / Effects of anti-foaming agents on biohydrogen production. In: Bioresource Technology. 2015.
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