Pilot Testing Advanced Treatment Technologies for High Quality Recycled Water Production
Abstract:The City and County of San Francisco is in the process of designing a 5-MGD advanced treatment facility to recycle wastewater effluent using membrane technologies for landscape irrigation and lake augmentation. As part of this effort, pilot testing of Ultrafiltration (UF), Reverse Osmosis (RO) and Advanced Oxidation (AO) with ultraviolet radiation and hydrogen peroxide was conducted. Secondary effluent from the Oceanside Water Pollution Control Plant (WPCP) was utilized to feed the system. The pilot studies were conducted from May 2007 to March 2008. During the testing, the UF membranes were operated at various flux rates to determine the optimum flux rate. This paper summarizes pilot test results. Laboratory results demonstrate that UF membranes are capable of removing turbidity and pathogens, whereas RO and Advanced Oxidation are capable of removing metals, pharmaceutical and personal care products (PPCP).
Document Type: Research Article
Publication date: January 1, 2008
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