Evaluating the toxicity of food processing wastes as co-digestion substrates with dairy manure
| Autor: | Stephanie Lansing, Maria Sol Lisboa |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Livestock
Waste management Food Handling Chemistry business.industry digestive oral and skin physiology Solid Waste Manure Methane Refuse Disposal Food waste Anaerobic digestion chemistry.chemical_compound Biogas Food processing Animals Environmental Pollutants Anaerobiosis Food science Digestion business Waste Management and Disposal Anaerobic exercise Food Analysis |
| Zdroj: | Waste Management. 34:1299-1305 |
| ISSN: | 0956-053X |
| Popis: | Studies have shown that including food waste as a co-digestion substrate in the anaerobic digestion of livestock manure can increase energy production. However, the type and inclusion rate of food waste used for co-digestion need to be carefully considered in order to prevent adverse conditions in the digestion environment. This study determined the effect of increasing the concentration (2%, 5%, 15% and 30%, by volume) of four food-processing wastes (meatball, chicken, cranberry and ice cream processing wastes) on methane production. Anaerobic toxicity assay (ATA) and specific methanogenic activity (SMA) tests were conducted to determine the concentration at which each food waste became toxic to the digestion environment. Decreases in methane production were observed at concentrations above 5% for all four food waste substrates, with up to 99% decreases in methane production at 30% food processing wastes (by volume). |
| Databáze: | OpenAIRE |
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