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Combination of hydrogen fermentation and methanogenesis to enhance energy conversion efficiency from trehalose.
- Source :
-
Energy . Jun2013, Vol. 55, p631-637. 7p. - Publication Year :
- 2013
-
Abstract
- Trehalose was pretreated by microwave heating with dilute acid to improve glucose yield and hydrogen production during dark-fermentation. An optimal glucose yield of 0.95 ± 0.08 g/g-trehalose was obtained when trehalose was pretreated by microwave heating with 1% dilute H2SO4 for 25 min at 120 °C. The hydrolyzed trehalose was inoculated with HPB (hydrogen-producing bacteria) to produce hydrogen during dark-fermentation. The residual solution of dark-fermentation was reused by PSB (photosynthetic bacteria) during photo-fermentation. The residual solution of photo-fermentation was reused by MPB (methane-producing bacteria) during methanogenesis. The maximum yields of hydrogen and methane were 731.3 ± 33.6 ml/g-trehalose and 116.9 ± 4.3 ml/g-trehalose. The sequential generation of hydrogen and methane from trehalose remarkably enhanced the energy conversion efficiency from 47.2 ± 2.2% in hydrogen fermentation to 72.2 ± 3.1% in combined hydrogen fermentation and methanogenesis. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03605442
- Volume :
- 55
- Database :
- Academic Search Index
- Journal :
- Energy
- Publication Type :
- Academic Journal
- Accession number :
- 89278684
- Full Text :
- https://doi.org/10.1016/j.energy.2013.03.061