Chapter
Apr 26, 2012
Pilot Testing of EDR Membrane Process for Fluoride and Arsenic Reduction at Fort Irwin, California
Publication: World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Abstract
Electrodialysis reversal (EDR) was pilot tested on moderate TDS, high silica groundwater with elevated levels of fluoride and arsenic at Fort Irwin, California. During 75 days of continuous testing, results demonstrated that with minimal pretreatment, EDR was capable of producing water that consistently met Fort Irwin's agreed upon water quality goals. The pilot unit was optimized to maximize feedwater recovery and stay within safe operating parameters relative to applied voltage and sparingly soluble salt supersaturation. A scale inhibitor and hydrochloric acid were added at low doses to the concentrate recycle loop to enhance recovery. This article presents the results of EDR pilot testing, which was performed to help design a full-scale facility for Fort Irwin's new 6-mgd (22,712 m3/d) water treatment plant.
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World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Pages: 1 - 10
Copyright
© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Associate, Project Manager, CH2M HILL, 3 Hutton Centre Drive, Suite 200, Santa Ana, CA 92707. E-mail: [email protected]
Associate Engineer, CH2M HILL, 3 Hutton Centre Drive, Suite 200, Santa Ana, CA 92707. E-mail: [email protected]
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