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Description: Phosphorus Management in High-Rate Activated Sludge Systems: The Roles of Enhanced...
Phosphorus Management in High-Rate Activated Sludge Systems: The Roles of Enhanced Assimilation and Biological P Removal
Abstract
In HRAS systems, P assimilation stoichiometries appear to increase at solids retention times (SRTs) below 0.5 days, which has key implications for managing P at short SRTs. At moderate SRT, 2.7-day aerobic SRT, a combination of P assimilation and biological P removal resulted in overall removal of 2.1 mg orthophosphate (OP)-P/L. Combining benefits of increased P assimilation of short SRT sludge with potential enhanced biological P removal (EBPR) activity at moderate SRT using physical selectors for SRT decoupling will further increase potential for combined organics and nutrient redirection and recovery.
In HRAS systems, P assimilation stoichiometries appear to increase at solids retention times (SRTs) below 0.5 days, which has key implications for managing P at short SRTs. At moderate SRT, 2.7-day aerobic SRT, a combination of P assimilation and biological P removal resulted in overall removal of 2.1 mg orthophosphate (OP)-P/L. Combining benefits of increased P assimilation of short SRT sludge with potential enhanced biological P removal (EBPR) activity at moderate SRT using physical selectors for SRT decoupling will further increase potential for combined organics and nutrient redirection and recovery.
SpeakerTruong, Howard
Presentation time
12:00:00
12:30:00
Session time
11:00:00
12:00:00
SessionGoing KETO: Stories of Carbon Re-Direction in the Age of Advanced Nutrient Removal
Session number9B
TopicEnergy Production, Conservation, and Management, Municipal Wastewater Treatment Design, Nutrients, Research and Innovation
TopicEnergy Production, Conservation, and Management, Municipal Wastewater Treatment Design, Nutrients, Research and Innovation
Author(s)
H. Truong,T. Van Winckel,,,K. Ngo,P. RootsS. VlaeminckB. SturmA. Massoudieh
Author(s)H. Truong1; ,2; T. Van Winckel1; ,3; ,5; ,6; K. Ngo1; ,4; P. Roots2; S. Vlaeminck5; B. Sturm6; A. Massoudieh4;
Author affiliation(s)DC Water and Sewer Authority 1; Department of Civil and Environmental Engineering, Northwestern University2; Center of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University 3; Department of Civil and Environmental Engineering, The Catholic University of America4; Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering, University of Antweep4; Research Group of Sustainable Energy, Air and Water Technology, Department of Bioscience Engineering, University of Antwerp5; Department of Civil, Environmental and Architectural Engineering, University of Kansas6; Hampton Roads Sanitation District 7
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157905
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count17

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