AWWA ACE63084

This slide presentation outlines a study on natural organic matter (NOM) fouling of low pressure membranes, and relating NOM properties to fouling trends. The presentation begins with a characterization and measurement of NOM, foulant identification, and the factors affecting fouling. Further topics outlined include: forms of NOM fouling; NOM fouling control; membrane filtration tests and simulations; feed water quality; hollow fiber membranes; flat sheet membranes; stirred cell tests; bench-scale hollow fiber unit; NOM Partitioning by MF-PVDF; fouling indices; Unified Membrane Fouling Index (UMFI); Pearson's correlation matrix; UMFI comparison; and, Matched Pair Analysis: Hollow Fiber Bench Unit and Pilot Scale Units Based on Corresponding UMFI Values. The presentation includes a summary of these study topics: feed-water characteristics; membrane properties; operations; and, surrogate tests. Includes tables, figures.