Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment (häftad, eng)
Characterizing Mechanisms of Simultaneous Biological Nutrient Removal During Wastewater Treatment (häftad, eng)
Gästpris:
Ditt medlemspris:
1 406 kr
1 625 kr
Kampanjpris! (-7%)
Kampanjpris! (-20%)
- Inköpspriser för medlemmar (Logga in)
- Frakt från 0 kr
- 14 dagars öppet köp
Frågor? Starta chatt
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.
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.
| Format | Häftad |
| Omfång | 102 sidor |
| Språk | Engelska |
| Förlag | IWA Publishing |
| Utgivningsdatum | 2004-01-01 |
| ISBN | 9781843397052 |
Artikelnummer
4016656
EAN
9781843397052
Leverans:
Denna produkt skickas från oss inom 6 - 7 vardagar. I kassan väljer du om du vill få leverans med Budbee, Airmee, Best Transport, Early Bird, Postnord eller DB Schenker. Vissa speditörer har vikt- eller storleksbegränsningar och kan av den anledningen saknas som alternativ i kassan om du handlar många eller väldigt stora produkter.Fri retur:
För medlemmar gäller fri retur och 14 dagars full returrätt från den dagen du tar emot din leverans. För övriga kostar retur från 49 kr.Undantag för retur- och ångerrätt:
Dessa är exempel på varor som inte omfattas av retur- eller ångerrätt. Observera att det kan finnas andra undantag som inte listas här.- Använda, skadade och/eller inkompletta produkter
- Dagligvaror (livsmedel, läkemedel, nikotinprodukter)
- Hygienartiklar & kroppsnära produkter (rakapparater, in ear-hörlurar, aktivitetsklockor)
- Intimprodukter (menskoppar, kondomer och glidmedel)
- Kosmetikprodukter (inkl. hår- och hudvårdsprodukter, parfymer, etc.)
- Underkläder (inkl. badkläder, underställ och strumpor)
- Ljud- & bildupptagningar, spel/program (om förseglingen brutits eller licensnyckeln erhållits.)
- Teknikprodukter om försegling brutits eller programvara har installerats (mobiltelefoner, surfplattor, laptops, etc.)
- Gratisprodukter
Om du är osäker på om en produkt omfattas av ångerrätt kan du alltid kontakta vår kundtjänst på info@buyersclub.se, så hjälper vi dig gärna!
Leveranser:
