AWWA MTC64499

The objectives of this slide presentation were to: derive a novel fouling index that can properly account for the membrane-specificity and reversibility of membrane fouling; develop a bench-scale experimental unit suitable for a unified modified fouling index (UMFI) determination; and, evaluate the impacts of different physical and chemical factors on UMFI so as to establish a proper experimental protocol. Specific topics outlined in the presentation pertaining to the Theoretical Basis of UMFI include: Hermia Model for Constant Pressure Filtration; Cake Layer Formation and Membrane Fouling Indices; Hermia Model for Constant Flux Filtration; Unified Hermia Model; Unified Membrane Fouling Index (UMFI); and, Physical Meaning of UMFI. Topics outlined pertaining to experimental determination of UMFI include: Bench Scale Testing Unit; Diagrams of the Bench Scale Unit; and, Operational Protocol. Topics outlined pertaining to validity of UMFI Method include: the Goodness-of-Fit; and, Scale-Up of UMFI. Topics outlined pertaining to application of UMFI include: Fouling Assessment for Membrane Selection; Assessing Source Water Fouling Potential; and, Assessment of Fouling Control Strategies for System Operation. Includes tables, figures.