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The City of San Diego is in the process of revising their Water Reuse Master Plan to include anevaluation of all options for the use of recycled water to meet current and future water supply andreuse needs. Some recycled water use alternatives, such as raw water reservoir augmentation, wouldrequire a much higher water quality than is currently available. To evaluate whether the requiredwater quality could be achieved, the City conducted an 18-month (July 2004 ¿¿¿¿¿¿¿¿ December 2005) pilottesting program of an advanced water treatment (AWT) train. The AWT consisted of three treatmentsteps: ultrafiltration (UF); reverse osmosis (RO); and ultraviolet (UV) light + hydrogen peroxide.This testing program evaluated the water quality performance of the AWT train during operation ontertiary water from the City's North City Water Reclamation Plant (NCWRP). The testing programalso evaluated new generation RO membranes designed for water reuse, assessed several indirectand direct RO membrane integrity monitoring methods and determined the impact of advancedoxidation (UV + hydrogen peroxide) on select endocrine disrupting compounds (EDCs), andpharmaceuticals and personal care products (PPCPs). This paper focuses on the operational andwater quality performance of the RO system. Includes 2 references, tables, figures.

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Edition: Vol. - No. Published: 06/01/2006 Number of Pages: 8File Size: 1 file , 250 KB