AWWA ACE65083

This slide presentation outlines information on topics that include: raw water quality; finished water quality goals; former conventional treatment facilities; current membrane treatment facilities; and, pros and cons of membranes. Tables present statistics on raw water created for membranes having the following parameters: turbidity; taste & odor; temperature; pH; alkalinity; total hardness; total coliforms; and, total organic carbon. Progressive finished water quality goals are given along with benefits of membrane treatment process that include: minimizes building footprint; maximizes reuse of structures; finished water quality is independent from raw water quality; production depends on system availability, water temperature and recovery process; make back-up manual operation impossible; make control system paramount; break even with conventional treatment process for chemical usage; present higher operation and maintenance costs; and, require tighter project cost control. Includes tables, figures.