Hydrogen production from food waste in anaerobic mesophilic and thermophilic acidogenesis

Hang Sik Shin, Jong Ho Youn, Sang-Hyoun Kim

Research output: Contribution to journalArticle

312 Citations (Scopus)

Abstract

Hydrogen production from food waste by the mesophilic and thermophilic acidogenic culture acclimated with food waste at 5 days HRT for the effect of pH and volatile solid (VS) concentrations was evaluated. The biogas produced from the thermophilic acidogenic culture was free of methane at all tested pH and VS concentrations, but methane was detected from the mesophilic acidogenic culture at all tested pH. The amount of hydrogen production from the thermophilic acidogenic culture was much higher than that from the mesophilic culture at all tested pH because of the methane free condition and negligible propionate production. Increase of VS concentrations from 3 to 10 g VS l-1 resulted in the increase of quantity and quality of hydrogen production. The maximum hydrogen content was 69% (v/v) at 10 g VS l-1. The hydrogen yield was in the range of 0.9-1.8 mol-H2/mol-hexose and peaked at 6 g VS l-1. Normal butyrate was the main acid product, and the percentages of butyrate, acetate and propionate at tested VS concentrations were 54-60%, 22-31% and 0.3-1%, respectively. Hydrogen producing microorganisms of Thermoanaerobacterium thermosaccharolytium and Desulfotomaculum geothermicum were detected from the thermophilic acidogenic culture, while Thermotogales strain and Bacillus species were detected from the mesophilic acidogenic culture by PCR-DGGE analysis.

Original languageEnglish
Pages (from-to)1355-1363
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume29
Issue number13
DOIs
Publication statusPublished - 2004 Oct 1

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hydrogen production
Hydrogen production
food
Methane
methane
Hydrogen
hydrogen
hexoses
Bacillus
Biogas
Bacilli
microorganisms
Microorganisms
acetates
acids
Acids
products

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "Hydrogen production from food waste by the mesophilic and thermophilic acidogenic culture acclimated with food waste at 5 days HRT for the effect of pH and volatile solid (VS) concentrations was evaluated. The biogas produced from the thermophilic acidogenic culture was free of methane at all tested pH and VS concentrations, but methane was detected from the mesophilic acidogenic culture at all tested pH. The amount of hydrogen production from the thermophilic acidogenic culture was much higher than that from the mesophilic culture at all tested pH because of the methane free condition and negligible propionate production. Increase of VS concentrations from 3 to 10 g VS l-1 resulted in the increase of quantity and quality of hydrogen production. The maximum hydrogen content was 69{\%} (v/v) at 10 g VS l-1. The hydrogen yield was in the range of 0.9-1.8 mol-H2/mol-hexose and peaked at 6 g VS l-1. Normal butyrate was the main acid product, and the percentages of butyrate, acetate and propionate at tested VS concentrations were 54-60{\%}, 22-31{\%} and 0.3-1{\%}, respectively. Hydrogen producing microorganisms of Thermoanaerobacterium thermosaccharolytium and Desulfotomaculum geothermicum were detected from the thermophilic acidogenic culture, while Thermotogales strain and Bacillus species were detected from the mesophilic acidogenic culture by PCR-DGGE analysis.",
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Hydrogen production from food waste in anaerobic mesophilic and thermophilic acidogenesis. / Shin, Hang Sik; Youn, Jong Ho; Kim, Sang-Hyoun.

In: International Journal of Hydrogen Energy, Vol. 29, No. 13, 01.10.2004, p. 1355-1363.

Research output: Contribution to journalArticle

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