Lackner, Susanne ; Thoma, Konrad ; Gilbert, Eva M. ; Gander, Wolfgang ; Schreff, Dieter ; Horn, Harald (2015)
Start-up of a full-scale deammonification SBR-treating effluent from digested sludge dewatering.
In: Water Science & Technology, 71 (4)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This study shows the start-up and operation of a full-scale sequencing batch reactor (SBR) with a volume of 550 m³ for deammonification of reject water from sludge dewatering over the first 650 days of operation. The SBR was operated with discontinuous aeration and achieved an optimum of around 85% of ammonium removal at a load of 0.17 kg m−3 d−1. The application of batch tests for activity measurement of aerobic ammonium and nitrite oxidizing bacteria and anaerobic ammonium oxidizing bacteria proved to support the identification of setbacks in reactor operation. Furthermore, the calculation of the oxygen uptake rates from online oxygen measurements helped to explain the overall reactor performance. The aeration regime is a key parameter for stable operation of such an SBR for deammonification. At aeration/non-aeration time ratios of 6–9 min, the best results with respect to turnover rates and low nitrate production were achieved. Compared to the nitrification/denitrification SBR operated in parallel with methanol as carbon source, a significant reduction in costs for energy and chemicals was achieved. The costs for maintenance slightly increased.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Lackner, Susanne ; Thoma, Konrad ; Gilbert, Eva M. ; Gander, Wolfgang ; Schreff, Dieter ; Horn, Harald |
| Art des Eintrags: | Bibliographie |
| Titel: | Start-up of a full-scale deammonification SBR-treating effluent from digested sludge dewatering |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Verlag: | IWA Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Water Science & Technology |
| Jahrgang/Volume einer Zeitschrift: | 71 |
| (Heft-)Nummer: | 4 |
| Kurzbeschreibung (Abstract): | This study shows the start-up and operation of a full-scale sequencing batch reactor (SBR) with a volume of 550 m³ for deammonification of reject water from sludge dewatering over the first 650 days of operation. The SBR was operated with discontinuous aeration and achieved an optimum of around 85% of ammonium removal at a load of 0.17 kg m−3 d−1. The application of batch tests for activity measurement of aerobic ammonium and nitrite oxidizing bacteria and anaerobic ammonium oxidizing bacteria proved to support the identification of setbacks in reactor operation. Furthermore, the calculation of the oxygen uptake rates from online oxygen measurements helped to explain the overall reactor performance. The aeration regime is a key parameter for stable operation of such an SBR for deammonification. At aeration/non-aeration time ratios of 6–9 min, the best results with respect to turnover rates and low nitrate production were achieved. Compared to the nitrification/denitrification SBR operated in parallel with methanol as carbon source, a significant reduction in costs for energy and chemicals was achieved. The costs for maintenance slightly increased. |
| Freie Schlagworte: | aeration; anammox; batch activity test; comparison to nitrification/denitrification; partial nitritation; solids regime |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung > Fachgebiet Abwasserwirtschaft |
| Hinterlegungsdatum: | 11 Apr 2018 09:53 |
| Letzte Änderung: | 03 Jun 2018 21:28 |
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