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Description: Carbon & Energy Management in High-Rate Contact-Stabilization through Dynamic...
Carbon & Energy Management in High-Rate Contact-Stabilization through Dynamic Oxygen Uptake Rate Control
Abstract
This study describes the development of a novel sludge wasting control strategy based on online oxygen uptake rate (OUR) measurements To automate energy use and carbon capture in high-rate activated sludge systems (HRAS). OUR-based wasting control has shown To directly manage the energy input to the HRAS system and resulted in stable carbon redirection. However, due to the highly dynamic conditions in HRAS systems, minimizing energy input within the HRAS system led to the rapid washout of sludge due to sudden loading changes (i.e. rain events) and/or operation under limited biomass inventory. Online bioflocculation limitation indicators based on the ratio of the maximum volumetric OUR in the contactor zone and stabilizer zone were developed within this study To optimize bioflocculation within HRAS system.
This study describes the development of a novel sludge wasting control strategy based on online oxygen uptake rate (OUR) measurements To automate energy use and carbon capture in high-rate activated sludge systems (HRAS). OUR-based wasting control has shown To directly manage the energy input to the HRAS system and resulted in stable carbon redirection. However, due to the highly dynamic conditions in HRAS systems, minimizing energy input within the HRAS system led to the rapid washout of sludge due to sudden loading changes (i.e. rain events) and/or operation under limited biomass inventory. Online bioflocculation limitation indicators based on the ratio of the maximum volumetric OUR in the contactor zone and stabilizer zone were developed within this study To optimize bioflocculation within HRAS system.
SpeakerTampon, Patrexia
Presentation time
11:00:00
11:30:00
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)
P. TamponK. Ngo,T. Van Winckel,,,a. MassoudiehB. SturmC. BottB. Wett
Author(s)P. Tampon1; K. Ngo1; ,4; T. Van Winckel1; ,2; ,3; ,5; a. Massoudieh4; B. Sturm3; C. Bott6; B. Wett7;
Author affiliation(s)DC Water1; Center of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University2; Department of Civil, Environmental and Architectural Engineering, University of Kansas3; 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 Antweep5; Hampton Roads Sanitation District6; ARA Consult GmbH7; NEWhub Corp8; Columbia University 9
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157903
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count14

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