Anaerobic co-digestion of commercial food waste and dairy manure: Characterizing biochemical parameters and synergistic effects
| Autor: | Jacqueline H. Ebner, J S Lodge, Thomas A. Trabold, Rodrigo A. Labatut, Anahita Williamson |
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| Rok vydání: | 2015 |
| Předmět: |
Waste Products
Waste management Chemistry 020209 energy Substrate (chemistry) Fraction (chemistry) 02 engineering and technology 010501 environmental sciences 01 natural sciences Manure Refuse Disposal Anaerobic digestion Food waste Hydrolysis Dairying Biodegradation Environmental Food 0202 electrical engineering electronic engineering information engineering Food science Anaerobiosis Co digestion Waste Management and Disposal Anaerobic exercise 0105 earth and related environmental sciences |
| Zdroj: | Waste management (New York, N.Y.). 52 |
| ISSN: | 1879-2456 |
| Popis: | Anaerobic digestion of commercial food waste is a promising alternative to landfilling commercial food waste. This study characterized 11 types of commercial food wastes and 12 co-digestion blends. Bio-methane potential, biodegradable fraction, and apparent first-order hydrolysis rate coefficients were reported based upon biochemical methane potential (BMP) assays. Food waste bio-methane potentials ranged from 165 to 496 mL CH4/g VS. Substrates high in lipids or readily degradable carbohydrates showed the highest methane production. Average bio-methane potential observed for co-digested substrates was -5% to +20% that of the bio-methane potential of the individual substrates weighted by VS content. Apparent hydrolysis rate coefficients ranged from 0.19d(-1) to 0.65d(-1). Co-digested substrates showed an accelerated apparent hydrolysis rate relative to the weighted average of individual substrate rates. These results provide a database of key bio-digestion parameters to advance modeling and utilization of commercial food waste in anaerobic digestion. |
| Databáze: | OpenAIRE |
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