AWWA MTC69780

This powerpoint presentation begins by providing a brief overview of low pressure membranes (LPMs). The objectives of this research were to: establish a standardized bench-scale testing system for low-pressure, hollow-fiber membranes; develop appropriate parameters to be determined with the system; and, validate the applicability of the system to membranes employed in large-scale water treatment. A standardized bench-scale system for LPHF membranes is presented, including configurations, components/parts, testing protocols, and properties of membranes and feedwaters. Presentation conclusions include: a standardized bench-scale testing system was developed for LPHF membranes used in large-scale water treatment; membrane performances can be evaluated quantitatively using UMFIs and removal efficiencies (or contaminant levels in the permeate); the bench-scale system served as a convenient tool for the assessment and, potentially, quantitative prediction of the performance of realistic membranes. Includes tables, figures.