Energy-efficient co-biodrying of dewatered sludge and food waste : Synergistic enhancement and variables investigation
Copyright © 2016 Elsevier Ltd. All rights reserved.
| Veröffentlicht in: | Waste management (New York, N.Y.). - 1999. - 56(2016) vom: 03. Okt., Seite 411-22 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2016
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| Zugriff auf das übergeordnete Werk: | Waste management (New York, N.Y.) |
| Schlagworte: | Journal Article Air-flow rate Co-biodrying Dewatered sludge Food waste Initial moisture content Sewage |
| Zusammenfassung: | Copyright © 2016 Elsevier Ltd. All rights reserved. In this study, dewatered sludge (DS) and food waste (FW) were co-biodried by balancing substrate's property and microbial aspect. A series of experiments were conducted to explore the effects of mixing ratio, particle size of bulking agent, air-flow rate and initial moisture content (MC). A synergistic enhancement of co-biodrying of FW and DS was observed in terms of a stable temperature profile and long high-temperature duration. The biodrying index (water removal/VS consumption) indicated that the co-biodrying had a high efficiency for water removal with less organics consumption, especially for DS/FW=2/2. The small size (<3mm) of bulking agent and initial MC of 62.68% was preferable for the biodrying process by providing adequate free air space and extra carbon source. A moderate air-flow rate of 0.04m(3)h(-1)kg(-1) showed the best water carrying capacity. This finding suggests that the co-biodrying strategy could be a promising approach to treating different organic wastes with synergistic enhancement |
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| Beschreibung: | Date Completed 14.04.2017 Date Revised 14.04.2017 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2016.06.007 |