Modification of a Full-Scale Sequencing Batch Reactor Operational Mode for Biological Nutrient Removal
| Autor: | James Copeman, Say Kee Ong, Cagatayhan B. Ersu, Lance Aldrich, Ertan Arslankaya, David R. Fox |
|---|---|
| Přispěvatelé: | Çukurova Üniversitesi |
| Rok vydání: | 2008 |
| Předmět: |
Nitrogen
chemistry.chemical_element Sequencing batch reactor Waste Disposal Fluid Water Purification Bioreactors Nutrient Humans Environmental Chemistry Anaerobiosis Waste Management and Disposal Effluent Water Science and Technology Ecological Modeling Phosphorus Sequencing batch bioreactor Chemical oxygen demand Temperature Pollution Anoxic waters Aerobiosis Biodegradation Environmental chemistry Wastewater Environmental chemistry Seasons |
| Zdroj: | Water Environment Research. 80:257-266 |
| ISSN: | 1061-4303 |
| DOI: | 10.2175/106143007x221337 |
| Popis: | WOS: 000255663700009 PubMed ID: 18419014 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 degrees 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 degrees 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. |
| Databáze: | OpenAIRE |
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