Effect of Suspended Wastes on System Design

by Liang-tseng Fan, Prof. and Head of Chem. Engrg.; Kansas State Univ., Manhattan, KS,
Ming-ching T. Kuo, Grad. Student of Chem. Engrg.; Kansas State Univ., Manhattan, KS,
Larry E. Erickson, Prof. of Chem. Engrg.; Kansas State Univ., Manhattan, KS,


Serial Information: Journal of the Environmental Engineering Division, 1974, Vol. 100, Issue 6, Pg. 1231-1247


Document Type: Journal Paper

Abstract: The optimum degree of primary treatment in an activated sludge process is investigated in this study. In this investigation, a so-called parallel biochemical oxidation kinetic model, which takes into account the low metabolic rate and masking effect of suspended wastes, is employed to characterize the kinetics in the aeration chamber. The dynamic programming technique is used to determine the optimal primary clarifier detention time. The analysis shows that the optimal primary clarifier detention time depends on the concentration and masking characteristics of inlet suspended wastes, as well as the concentration of inlet soluble substrate.

Subject Headings: Waste management | Kinetics | Clarifiers | Inlets (waterway) | Activated sludge | Oxidation | Aeration

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