Simultaneous DO Control and Respiration Estimation

Equations were developed for estimating the respiration rate and oxygen transfer rate in the activated sludge process while controlling the concentration of dissolved oxygen. The air flow rate was used to control the dissolved-oxygen concentration in an oscillating fashion around its set-point. Resu...

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Bibliographic Details
Published in:Water science and technology 1989-01, Vol.21 (10-11), p.1185-1195
Main Authors: Holmberg, U, Olsson, G, Andersson, B
Format: Article
Language:English
Subjects:
Activated sludge
Air flow
Control
Control methods
Dissolved oxygen
Dynamics
Flow rates
Flow velocity
Oxygen
Oxygen consumption
Oxygen transfer
Oxygen uptake
Parameter estimation
Relay feedback
Respiration
Sewage
Sludge
Tracking
Uptake
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Description
Summary:Equations were developed for estimating the respiration rate and oxygen transfer rate in the activated sludge process while controlling the concentration of dissolved oxygen. The air flow rate was used to control the dissolved-oxygen concentration in an oscillating fashion around its set-point. Results are presented from tests on this procedure at Malmo sewage works.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1989.0318