Stochastic Analysis of Orthokinetic Flocculation

by Perry W. Cockerham, Second Lt.; U.S. Air Force, Wright-Patterson Air Force Base, OH,
David M. Himmelblau, (M.ASCE), Prof., Chem. Engrg.; Univ. of Texas, Austin, TX,

Serial Information: Journal of the Environmental Engineering Division, 1974, Vol. 100, Issue 2, Pg. 279-293

Document Type: Journal Paper

Errata: (See full record)

Abstract: A stochastic analysis of orthokinetic flocculation has been employed to illustrate one method of computing overdesign factors for continuous flow flocculators. Random inputs and coefficients with known probability distributions were introduced into a model of primary particle flocculation to carry out Monte Carlo simulations. The resulting stochastic outputs were characterized and related to the inputs. It was discovered that both the unsteady-state and steady-state sample responses could be regarded as being normally distributed and essentially unbiased, greatly simplifying the computation of the overdesign factor. Although stochastic analysis cannot reduce the uncertainty involved in flocculation design, it can assist in making design decisions on more quantitative basis.

Subject Headings: Stochastic processes | Flocculation | Steady states | Probability distribution | Simulation models | Particle size distribution | Monte Carlo method | Europe | Monaco | Monte Carlo

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