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In 2007, AdEdge was contacted by Pacific Advance Civil Engineering (PACE) to assist an American Indian tribe near San Diego that needed a packaged treatment system for uranium removal. The Barona Band of Indians owns and operates the water system serving the Barona Resort and Casino.
Regenerative Solution
Designed for high-efficiency removal of naturally occurring uranium from groundwater supplies, the AdEdge AD92 system has a twin 54-in. vessel configuration, with a design flow of 250 gal per minute (gpm) in parallel configuration. The system included automation to accomplish onsite regeneration of the media and automatic functions.
The PLC-based system was supplied with a control panel and a stainless-steel valve harness suitable for the ambient operating pressures over 120 psi. The system was furnished with a regeneration/brine system to regenerate the IX resin periodically on demand.
System Performance
The system was placed into full-time operation in early November 2007, running at a flow rate of approximately 220 gpm and processing roughly 80,000 gal per day. To date, results reported by the site’s state-certified laboratory show uranium levels are consistently below detection (2 ug/L). Regeneration events are performed bimonthly, and the system is monitored regularly by the site’s operator.