Bioaugmentation of the anaerobic digestion of food waste by dungs of herbivore, carnivore, and omnivore zoo animals
| Autor: | Robert Bair, Daniel H. Yeh, Javkhlan Ariunbaatar, Piet N.L. Lens, Giovanni Esposito, Onur Y. Ozcan, Ray Ball |
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| Přispěvatelé: | Ariunbaatar, Javkhlan, Ozcan, Onur, Bair, Robert, Esposito, Giovanni, Ball, Ray, Lens, Piet N. L, Yeh, Daniel H. |
| Rok vydání: | 2017 |
| Předmět: |
Bioaugmentation
020209 energy Anaerobic digestion animal digestive system bioaugmentation food waste trace elements 02 engineering and technology 010501 environmental sciences Waste Disposal Fluid 01 natural sciences Feces biology.animal 0202 electrical engineering electronic engineering information engineering Animals Environmental Chemistry Anaerobiosis Herbivory Carnivore Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology 2. Zero hunger Herbivore Sewage biology Tiger Ecology General Medicine Sloth Manure Food waste Biodegradation Environmental 13. Climate action Animals Zoo Omnivore |
| Zdroj: | Environmental Technology. 39:516-526 |
| ISSN: | 1479-487X 0959-3330 |
| DOI: | 10.1080/09593330.2017.1305002 |
| Popis: | The potential improvement of biomethanation of food waste (FW) by adding dung of herbivore (giraffe, llama, koala), carnivore (tiger), and omnivore (sloth bear) animals to anaerobic sludge (AnS) was investigated. Adding 30% giraffe, sloth bear or koala dung to the AnS inoculum yielded, respectively, a 11.17 (±4.51), 10.10 (±1.23), and 1.41 (±0.56)% higher biomethane production, as compared to the control (FW with solely AnS). The highest biomethane production of 564.00 (±3.88) ml CH4/gVSadded obtained with 30% giraffe dung and 70% AnS was attributed to a higher solubilization of proteins (6.96 ± 2.76%) and recalcitrant carbohydrates (344.85 ± 54.31 mg/L as compared to zero). The biomethanation process could have been stimulated by the microorganisms or enzymes newly introduced, and/or the trace elements (Ni, Zn, and Co) present in the giraffe dung. These results indicate that bioaugmentation with zoo animals dung is worthy of further investigation as a strategy for improving the biomethane recovery from organic wastes. |
| Databáze: | OpenAIRE |
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