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Medientyp: E-Artikel Titel: Simultaneous organic carbon and nitrogen removal in an SBR controlled at low dissolved oxygen concentration Beteiligte: Dangcong, Peng; Bernet, Nicolas; Delgenes, Jean‐Phillipe; Moletta, Rene Erschienen: Wiley, 2001 Erschienen in: Journal of Chemical Technology & Biotechnology Sprache: Englisch DOI: 10.1002/jctb.419 ISSN: 0268-2575; 1097-4660 Schlagwörter: Inorganic Chemistry ; Organic Chemistry ; Pollution ; Waste Management and Disposal ; Fuel Technology ; Renewable Energy, Sustainability and the Environment ; General Chemical Engineering ; Biotechnology Entstehung: Anmerkungen: Beschreibung: <jats:title>Abstract</jats:title><jats:p>Simultaneous organic carbon and nitrogen removal was studied in a sequencing batch reactor (SBR) fed with synthetic municipal wastewater and controlled at a low dissolved oxygen (DO) level (0.8 mg dm<jats:sup>−3</jats:sup>). Experimental results over a long time (120 days) showed that the reactor achieved high treatment capacities (organic and nitrogen loading rates reached as high as 2.4 kg COD m<jats:sup>−3</jats:sup> d<jats:sup>−1</jats:sup> and 0.24 kg NH<jats:sub>3</jats:sub>‐N m<jats:sup>3</jats:sup> d<jats:sup>−1</jats:sup>) and efficiencies (COD, NH<jats:sub>3</jats:sub>‐N and total nitrogen removal efficiencies were 95%, 99% and 75%). No filamentous bacteria were found in the sludge even though the reactor had been seeded with filamentous bulking sludge. Instead, granular sludge, which possessed high activity and good settleability, was formed. Furthermore, the sludge production rate under low DO was less than that under high DO. Significant benefits, such as low investment and less operating cost, will be obtained from the new process.</jats:p><jats:p>© 2001 Society of Chemical Industry</jats:p>