Düppenbecker, Bernhard ; Cornel, Peter (2016)
Anaerobic treatment of sulfate-containing municipal wastewater with a fluidized bed reactor at 20 °C.
In: Water Science and Technology, 73 (10)
doi: 10.2166/wst.2016.109
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This study focuses on the anaerobic treatment of sulfate-containing municipal wastewater at 20 °C with a fluidized bed reactor. Mean influent chemical oxygen demand (COD) and sulfate concentrations were 481 and 96 mg/l. The response of the COD removal efficiency to increasing organic loading rates (OLR) was investigated. Average total COD removal was 61% at OLR between 2.7 and 13.7 kg COD/(m³·d) and did not distinctly depend on the OLR. To assess the removal efficiency in more detail the COD in- and output mass flows were balanced. The results showed that only 11–12% of the input COD was recovered as gaseous methane. About 12–13% of the input COD remained in the effluent as dissolved methane. Furthermore, a distinct amount of 12–19% of the input COD remained in the reactor as settled sludge and was not further biologically degraded. Due to the reduction by sulfate-reducing bacteria, 13–14% of the input COD was degraded. Further adverse impacts of the influent sulfate on the anaerobic treatment process are discussed as well.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Düppenbecker, Bernhard ; Cornel, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Anaerobic treatment of sulfate-containing municipal wastewater with a fluidized bed reactor at 20 °C |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2016 |
| Verlag: | IWA Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Water Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 73 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.2166/wst.2016.109 |
| URL / URN: | http://wst.iwaponline.com/content/73/10/2446 |
| Kurzbeschreibung (Abstract): | This study focuses on the anaerobic treatment of sulfate-containing municipal wastewater at 20 °C with a fluidized bed reactor. Mean influent chemical oxygen demand (COD) and sulfate concentrations were 481 and 96 mg/l. The response of the COD removal efficiency to increasing organic loading rates (OLR) was investigated. Average total COD removal was 61% at OLR between 2.7 and 13.7 kg COD/(m³·d) and did not distinctly depend on the OLR. To assess the removal efficiency in more detail the COD in- and output mass flows were balanced. The results showed that only 11–12% of the input COD was recovered as gaseous methane. About 12–13% of the input COD remained in the effluent as dissolved methane. Furthermore, a distinct amount of 12–19% of the input COD remained in the reactor as settled sludge and was not further biologically degraded. Due to the reduction by sulfate-reducing bacteria, 13–14% of the input COD was degraded. Further adverse impacts of the influent sulfate on the anaerobic treatment process are discussed as well. |
| 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 Abwassertechnik |
| Hinterlegungsdatum: | 06 Sep 2017 14:08 |
| Letzte Änderung: | 03 Jun 2018 21:28 |
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