Abstract
When using cellulosic biomass as feedstock for dark fermentative hydrogen production (DFHP), feedstock preparation is essential step for enhancement of biodegradability. In the present work, electric field was newly applied as a novel pretreatment technique to Laminaria japonica, a marine brown algae, as an alternative method for feedstock preparation. A feasibility test was first conducted (20-100V for 30min). The highest H2 yield (93.6mLH2g-1 dry cell weight (dcw)) was achieved at applied voltage of 60V, while the performance was decreased from applied voltage of 80-100V due to increasing formation of hydroxymethylfurfural. Subsequently, electric pretreatment conditions (applied voltage and reaction time) were statistically optimized, and a H2 yield of 102.7mLg-1dcw was recorded with applied voltage 58.5V and reaction time 30min. This was 96.1% of the predicted value. These findings clearly revealed that the application of electric field as pretreatment method has enormous potential as an alternative method for feedstock preparation in DFHP.
Original language | English |
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Pages (from-to) | 184-188 |
Number of pages | 5 |
Journal | Biomass and Bioenergy |
Volume | 72 |
DOIs | |
State | Published - 1 Jan 2015 |
Keywords
- Dark fermentative H production
- Electric field
- Feedstock preparation
- Laminaria japonica
- Response surface methodology