Thermophilic Biohydrogen Fermentation of Kitchen Waste

Batch tests were conducted to obtain optimal feedstock concentration and cultivation temperature for efficient biohydrogen production via mixed anaerobic cultures with various kitchen waste concentrations of 10–80 g chemical oxygen demand (COD)/L and cultivation temperatures of 35–55 °C. The experim...

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Bibliographic Details
Published in:Waste and biomass valorization 2020-03, Vol.11 (3), p.1041-1047
Main Authors: Lin, Chiu-Yue, Tseng, Yu-Te, Leu, Hoang-Jyh
Format: Article
Language:English
Subjects:
Biohydrogen
Chemical oxygen demand
Cultivation
Engineering
Environment
Environmental Engineering/Biotechnology
Feeding behavior
Fermentation
Hydrogen
Hydrogen production
Industrial applications
Industrial Pollution Prevention
Organic chemistry
Original Paper
Renewable and Green Energy
Temperature
Waste Management/Waste Technology
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Summary:Batch tests were conducted to obtain optimal feedstock concentration and cultivation temperature for efficient biohydrogen production via mixed anaerobic cultures with various kitchen waste concentrations of 10–80 g chemical oxygen demand (COD)/L and cultivation temperatures of 35–55 °C. The experimental results indicate that to produce biohydrogen from kitchen waste, thermophilic cultivation temperature is more favorable than mesophilic cultivation temperature in giving high hydrogen yield, maximum hydrogen production rate and hydrogen gas content. Temperatures 50 and 55 °C gave same levels of fermentation efficiency in hydrogen yield, maximum hydrogen production rate and hydrogen gas content with values of 70 mL/g COD added , 80 mL/L-h and 50%, respectively. These parameter values were 5–10 folds of those at 35–45 °C. However, before the industry application, it is suggested to further investigate a continuously-feeding mode and pilot-scale operations to collect the data for full-scale design and operation.
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-018-0425-4