Parameter Choice for Process Control

by Edward D. Schroeder, Prof.; Dept. of Civ. Engrg., Univ. of California at Davis, Davis, Calif.,
Robert L. Irvine, Assoc. Prof.; Dept. of Civ. Engrg., Univ. of Notre Dame, Notre Dame, Ind.,

Serial Information: Journal of the Environmental Engineering Division, 1979, Vol. 105, Issue 2, Pg. 217-229

Document Type: Journal Paper


Effective real time process control of activated sludge systems subject to transient loadings is dependent upon the identification of sensitive control parameters. Soluble organic concentration is shown not to be a suitable control parameter. Oxygen uptake rate and, correspondingly, reactor dissolved oxygen concentrations are extremely sensitive to changes in reactor soluble BOD concentration resulting from loading variations and, as a result, can be used as an indirect measure of soluble organics.

Subject Headings: Transient loads | Solubility | Parameters (statistics) | Dissolved oxygen | Concentrated loads | Organic loads | Activated sludge | Load factors

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