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Simultaneous nitrification and denitrification coupled with phosphorus removal in an modified anoxic/oxic-membrane bioreactor (A/O-MBR)

Paper ID Volume ID Publish Year Pages File Format Full-Text
4298 219 2009 6 PDF Available
Title
Simultaneous nitrification and denitrification coupled with phosphorus removal in an modified anoxic/oxic-membrane bioreactor (A/O-MBR)
Abstract

In this study, simultaneous carbon, nitrogen and phosphorus (PO43−-P) removals using an anoxic/oxic-membrane bioreactor (A/O-MBR) system without any circulation was investigated. The total nitrogen (TN) removal efficiency was above 84.6%, and the average removal efficiencies of COD and PO43−-P were 94.6 and 90.0%, respectively. Ammonium (NH4+-N) removal without nitrite (NO2−-N) and nitrate (NO3−-N) accumulation in the reactor suggested that simultaneous nitrification and denitrification (SND) occurred. The phosphorus-accumulating organisms (PAOs) accumulated in the reactor. AnOx/Oxic test indicated that intracellular organic carbon might be utilized as denitrification electron donor in nitrogen removal process.

Keywords
Biological nitrogen removal; Biological assimilation; Phosphorus-accumulating organisms; Poly-β-hydroxybutyrate; Membrane bioreactor
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Simultaneous nitrification and denitrification coupled with phosphorus removal in an modified anoxic/oxic-membrane bioreactor (A/O-MBR)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 43, Issue 2, 15 February 2009, Pages 191–196
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us