Variable-Order Model of Bacterial-Film Kinetics

by Bruce E. Rittmann, (A.M.ASCE), Research Asst.; Dept. of Civ. Engrg., Stanford Univ., Stanford, Calif.,
Perry L. McCarty, (M.ASCE), Prof.; Dept. of Civ. Engrg., Stanford Univ., Stanford, Calif.,


Serial Information: Journal of the Environmental Engineering Division, 1978, Vol. 104, Issue 5, Pg. 889-900


Document Type: Journal Paper

Abstract: A variable-order model provides a closely approximate, explicit solution for the flux of a limiting substrate into a deep fixed bacterial film. The model incorporates concepts of liquid-layer mass transport, Monod kinetics, and molecular diffusion. The derived equation provides an explicit solution for the flux into a bacterial film, and for this reason, it should aid in the application of fundamental, fixed-film kinetics to practical reactor problems. Examples are given to illustrate use of the model.

Subject Headings: Bacteria | Kinetics | Substrates | Mass transport | Diffusion (chemical)

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