Objective: The objective of this project is to demonstrate an innovative treatment process for perchlorate in drinking water that integrates fixed-bed ion exchange for the perchlorate removal resin regeneration and a perchlorate destruction system for the perchlorate-laden regenerate. This integrated, innovative process utilizes resin regeneration and a perchlorate destructive cycle that reconstitutes the regenerant solution. Technology Description: In this project, investigators will build on Oak Ridge National Laboratory-developed, award-winning technologies including: (1) a highly selective bifunctional anion exchange perchlorate-selective resin, (2) novel ferric chloride-hydrochloric acid (FeCl3-HCl) resin regeneration, and (3) a process for perchlorate destruction and recycling of the regenerate solution. Thus, both the resin and the regenerate solution can be reused. Selective resins are able to achieve perchlorate effluent concentrations below 1 microgram per liter. At full scale, it is anticipated that the resin beds will be able to operate at least 1 year between changes and that the resin will be reusable for six to eight regeneration cycles. The treatment system used in this demonstration will be customized specifically for drinking water treatment. Expected Benefits: It is anticipated that the treatment cost of a regenerable resin-based system should be approximately one-half that of single-use resin, which itself is cheaper than the brine-based regenerable systems that currently are being used for drinking water applications. These cost savings are achieved because this technology is very selective for perchlorate over other anions, reduces the volume of material requiring disposal 2,500 times over other regenerable systems, minimizes NDMA/NDEA and uranium formation/accumulation, and is easy for a municipality to operate. (Anticipated Project Completion - 2007) Principal Investigator: Mr. Trent Henderson ARCADIS G&M, Inc. 1400 North Harbor Blvd., Suite 700 Fullerton, CA 92835 Telephone: (714) 278-0992 Fax: (714) 278-0051 E-mail: thenderson@arcadis-us.com DoD Liaison: Ms. Barbara Sugiyama Naval Facilities Engineering Service Center 1100 23rd Avenue, ESC 411 Port Hueneme, CA 93043 Telephone: (805) 982-1668 Fax: (805) 982-4304 E-mail: barbara.sugiyama@navy.mil | 
