Use of waste fermenting liquor to produce bioflocculants with isolated strains
Resource
International Journal of Hydrogen Energy 33 (13): 3295-3301
Journal
International Journal of Hydrogen Energy
Journal Volume
33
Journal Issue
13
Pages
3295-3301
Date Issued
2008
Date
2008
Author(s)
Abstract
Dark fermentation from biomass can produce bio-hydrogen, which is a clean energy source and feedstock used in numerous industries. However, the hydrogen fermentation process produces strong waste fermenting liquor that requires polishing before disposal. This work utilized the waste fermenting liquors to produce bioflocculant from the residual organic matters. Three bacterial strains were noted to have high potential to produce bioflocculants from waste fermenting liquor. In particular, the strain BF-6, identified as Bacillus subtilis by 16S rRNA sequencing, was noted to effectively produce bioflocculant from ethanol-rich mixtures. The BF-6 produced carbohydrate bioflocculants from waste fermenting liquors at a yield of 2.1 g l-1. © 2008 International Association for Hydrogen Energy.
Subjects
Bioflocculant; Ethanol; Strains; Waste fermenting liquor
Other Subjects
Bacteriology; Biochemical engineering; Biological materials; Biomass; Carbohydrates; Ethanol; Fermentation; Hydrogen; Organic compounds; Raw materials; Renewable energy resources; Strain; Waste disposal; 16S rRNA; Bacillus subtilis (BS2); Bacterial strains; Bio-hydrogen; Bioflocculant; Bioflocculants; Clean energy; Dark fermentation; high potential; Hydrogen fermentation; Isolated strains; Organic matter (OM); Energy conversion
Type
journal article
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