Record Display for the EPA National Library Catalog


Main Title Process Control Model for Oxygen Regeneration of Polluted Rivers, Phase II.
Author Davidso, Burton ;
CORP Author Rutgers - The State Univ., New Brunswick, N.J. Water Resources Research Inst.
Year Published 1971
Report Number DI-14-01-0001-3106; OWRR-B-019-NJ; 10162,; B-019--N.J.(1)
Stock Number PB-201 058
Additional Subjects ( Water treatment ; Process control) ; ( Stream pollution ; Aeration) ; ( Biochemical oxygen demand ; Mathematical models) ; Oxygen ; Dissolved cases ; Systems analysis ; Water quality ; Optimization ; Frequency response ; Control theory ;
Library Call Number Additional Info Location Last
NTIS  PB-201 058 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 35p
A new parameter estimation procedure has been invented for the direct field determination of the natural reaeration coefficient by frequency response analysis. By the use of a mechanical instream aerator device, which is operated in a periodic fashion with a variable amplitude, it is possible to determine quantitatively the value of the natural reaeration coefficient from field measurements of dissolved oxygen concentration. The method makes use of a detailed one-dimensional, unsteady-state Streeter-Phelps type model of a polluted river. Also, nonlinear optimal control theory has been applied to the distributed BOD problem in polluted rivers. Included in the control theory analyses are dual water quality standards and economic factors for pipeline distributors and waste treatment plants. (WRSIC abstract)