RO Performance and Optimization at the Pure Water Southern California Potable Reuse Demonstration Facility

RO performance and optimization strategies are examined at the Pure Water Southern California demonstration facility operated by Metropolitan Water District and Los Angeles County Sanitation Districts for large-scale potable reuse. The facility produces purified water from recycled wastewater serving the region’s 19 million residents, with potential full-scale capacity of 150 MGD. The paper addresses RO rejection enhancement, fouling control approaches, and operational optimization in the context of large-scale water reuse infrastructure and regulatory compliance.