AWWA ACE69125

AWWA ACE69125 Reducing Total Phosphorus Levels from RO Concentrate: Bench and Pilot-Scale Studies for Indirect Potable Water Reuse Facility in Colorado
Conference Proceeding by American Water Works Association, 11/01/2008

Sinha, Shahnawaz; Zuber, Gwendolyn; Beebe, Mark; Atkin, Gary; Mulhern, Pat

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A yearlong pilot-study was conducted at two different alluvial well sites using 2.0gpm pilot units. The pilot-study investigated the effectiveness of ROtreatment with the addition of several types of antiscalants and antifoulants in treatingalluvial well water. Bench-scale studies were also conducted that focused onreducing total phosphorus level from RO concentrate water and in meeting theNPDES phosphorus discharge limits. The bench-scale tests included coagulationfollowed by low-pressure membrane filtration (such as MF) to removephosphorus from the RO concentrate water. Includes tables, figures.