Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modification of a Full‐Scale Sequencing Batch Reactor Operational Mode for Biological Nutrient Removal
Two biological nutrient removal modes, consisting of anaerobic, anoxic, and oxic sequences, were tested in a full‐scale sequencing batch reactor. The modes, identified as BNR‐S1 and BNR‐S2, had average total nitrogen removals of 84 and 89%, respectively, for the months of August to October. Over the same period, total phosphorus removals for BNR‐S1 and BNR‐S2 were 88 and 87%, respectively. In contrast, total nitrogen and total phosphorus removals for the regular aerobic mode were 54.7 and 44.7%, respectively. When the wastewater temperature changed from approximately 20 to 15°C in the winter months, total nitrogen and total phosphorus removals for BNR‐S2 were reduced to 81 and 70%, respectively. Total nitrogen effluent concentrations were between 2.5 and 4 mg‐N/L (at approximately 20°C), while the effluent total phosphorus concentrations were between 1 and 2 mg/L. The BNR‐S2 mode was found to require less energy per kilogram of soluble chemical oxygen demand removed than the regular and BNR‐S1 modes.
Modification of a Full‐Scale Sequencing Batch Reactor Operational Mode for Biological Nutrient Removal
Two biological nutrient removal modes, consisting of anaerobic, anoxic, and oxic sequences, were tested in a full‐scale sequencing batch reactor. The modes, identified as BNR‐S1 and BNR‐S2, had average total nitrogen removals of 84 and 89%, respectively, for the months of August to October. Over the same period, total phosphorus removals for BNR‐S1 and BNR‐S2 were 88 and 87%, respectively. In contrast, total nitrogen and total phosphorus removals for the regular aerobic mode were 54.7 and 44.7%, respectively. When the wastewater temperature changed from approximately 20 to 15°C in the winter months, total nitrogen and total phosphorus removals for BNR‐S2 were reduced to 81 and 70%, respectively. Total nitrogen effluent concentrations were between 2.5 and 4 mg‐N/L (at approximately 20°C), while the effluent total phosphorus concentrations were between 1 and 2 mg/L. The BNR‐S2 mode was found to require less energy per kilogram of soluble chemical oxygen demand removed than the regular and BNR‐S1 modes.
Modification of a Full‐Scale Sequencing Batch Reactor Operational Mode for Biological Nutrient Removal
Ersu, Cagatayhan (Autor:in) / Arslankaya, Ertan (Autor:in) / Ong, Say Kee (Autor:in) / Fox, David (Autor:in) / Aldrich, Lance (Autor:in) / Copeman, James (Autor:in)
Water Environment Research ; 80 ; 257-266
01.03.2008
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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