Long-term anaerobic digestion of food waste stabilized by trace elements
Copyright © 2012. Published by Elsevier Ltd.
| Veröffentlicht in: | Waste management (New York, N.Y.). - 1999. - 32(2012), 8 vom: 26. Aug., Seite 1509-15 |
|---|---|
| 1. Verfasser: | |
| Weitere Verfasser: | |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2012
|
| Zugriff auf das übergeordnete Werk: | Waste management (New York, N.Y.) |
| Schlagworte: | Comparative Study Journal Article Research Support, Non-U.S. Gov't Trace Elements |
| Zusammenfassung: | Copyright © 2012. Published by Elsevier Ltd. The purpose of this study was to examine if long-term anaerobic digestion of food waste in a semi-continuous single-stage reactor could be stabilized by supplementing trace elements. Contrary to the failure of anaerobic digestion of food waste alone, stable anaerobic digestion of food waste was achieved for 368 days by supplementing trace elements. Under the conditions of OLR (organic loading rates) of 2.19-6.64 g VS (volatile solid)/L day and 20-30 days of HRT (hydraulic retention time), a high methane yield (352-450 mL CH(4)/g VS(added)) was obtained, and no significant accumulation of volatile fatty acids was observed. The subsequent investigation on effects of individual trace elements (Co, Fe, Mo and Ni) showed that iron was essential for maintaining stable methane production. These results proved that the food waste used in this study was deficient in trace elements |
|---|---|
| Beschreibung: | Date Completed 02.11.2012 Date Revised 11.03.2022 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2012.03.015 |