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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Serna-Maza, Alba Heaven, Sonia Banks, Charles J. |
| Description | Country affiliation: United kingdom Author Affiliation: Serna-Maza A ( a Faculty of Engineering and the Environment , University of Southampton , Southampton , UK.); Heaven S ( a Faculty of Engineering and the Environment , University of Southampton , Southampton , UK.); Banks CJ ( a Faculty of Engineering and the Environment , University of Southampton , Southampton , UK.) |
| Abstract | Previous studies have suggested the use of digester biogas mixing systems for in situ ammonia removal from anaerobic digestates. The feasibility of this was tested at moderate and complete gas mixing rates at mesophilic and thermophilic temperatures in a 75-L digester. Experimental results showed that at gas mixing rates typical of full-scale commercial digesters the reduction in total ammonia nitrogen concentrations would be insufficient to allow stable acetoclastic methanogenesis in mesophilic conditions, or to prevent total inhibition of methanogenic activity in thermophilic food waste digestion. Simulation based on batch column stripping experiments at 55°C at gas violent flow rates of 0.032â mâ mâ min indicated that ammonia concentrations could be reduced below inhibitory values in thermophilic food waste digestion for organic loading rates of up to 6â kgâ VSâ mâ day . These mixing rates are far in excess of those used in full-scale gas-mixed digesters and may not be operationally or commercially feasible. |
| File Format | HTM / HTML |
| ISSN | 09593330 |
| Journal | Environmental Technology |
| e-ISSN | 1479487X |
| Language | English |
| Publisher | Taylor & Francis |
| Publisher Date | 2017-02-22 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Health |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Medicine Water Science and Technology |
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