Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment

Lingua: inglese

Editore: IWA Publishing Jan 2004, 2004

1843397056 / 9781843397052

Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH

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Descrizione dell’articolo da parte del venditore

Neuware - Simultaneous biological nutrient removal (SBNR) is the removal of nitrogen and/or phosphorus in excess of that required for biomass synthesis in biological wastewater treatment systems where there are no defined anaerobic and/or anoxic zones. The hypothesis is that one or more of three mechanisms is responsible within individual systems: variations in the bioreactor macroenvironment created by the mixing pattern, gradients within the floc microenvironment, and/or novel microorganism activity. Understanding of the mechanisms of SBNR can be expected to lead to improved efficiency and reliability in its application. Preliminary work documented SBNR in 7 full-scale OrbalTM closed loop bioreactors. A batch assay demonstrated that novel microorganism activity was of little importance in SBNR at the three plants tested. While the floc microenvironment likely plays an important role in nitrogen removal in such plants, it cannot explain phosphorus removal. A computational fluid dynamics (CFD) model was developed to elucidate the role of the bioreactor macroenvironment in SBNR. This is the first reported application of CFD to activated sludge biological wastewater treatment. Although the software and computational requirements limited model complexity, it still simulated the creation of dissolved oxygen gradients within the system, demonstrating that the anaerobic zones required for SBNR could occur.

Codice articolo 9781843397052

Titolo
Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment
Autore
P. F. Strom
Editore
IWA Publishing Jan 2004
Anno di pubblicazione
2004
Condizione
Neu
Rilegatura
Taschenbuch
Lingua
inglese
ISBN 10
1843397056
ISBN 13
9781843397052
Peso dell'articolo
286 grammi
Dimensioni
279x211x9 mm

AHA-BUCH GmbH

Einbeck, Germania

Venditore con 5 stelle

Venditore AbeBooks dal 14 agosto 2006

Tariffe di spedizione da Germania a U.S.A.

ArticoloDa 5 a 7 giorni lavorativiDa 7 a 10 giorni lavorativi
Primo articoloEUR 30,50EUR 30,50
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