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Richard J. Zuromski, Jr., P.E. Naval Facilities Engineering Service Center Port Hueneme, CA

Federal Remediation Technologies Roundtable General Meeting Perchlorate Remediation at JPL Pasadena, CA. Richard J. Zuromski, Jr., P.E. Naval Facilities Engineering Service Center Port Hueneme, CA. JPL Background. Perchlorate from Cleaning Rocket Motors in 1940s and 1950s

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Richard J. Zuromski, Jr., P.E. Naval Facilities Engineering Service Center Port Hueneme, CA

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  1. Federal Remediation Technologies Roundtable General Meeting Perchlorate Remediation at JPL Pasadena, CA Richard J. Zuromski, Jr., P.E. Naval Facilities Engineering Service Center Port Hueneme, CA

  2. JPL Background • Perchlorate from Cleaning Rocket Motors in 1940s and 1950s • NPL Listing in 1992 • Three Operable Units • NASA/NAVFAC MOA in 1999 • Superfund Program Transferred in May 2000

  3. Presentation Summary • Regulatory Overview • Ion Exchange Pilot Test • Fluidized Bed Bioreactor Pilot Test • Packed Bed Reactor Pilot Test • In-situ Pilot Test • Conclusions

  4. California DHS Interim Action Level Future MCLs??? Background Perchlorate in Basin Water Purveyors/Adjudicated Groundwater Regulatory Issues

  5. Calgon “ISEP+” system September 1998 - March 1999 Ion Exchange w/Catalytic Destruction Objectives Minimize regenerant consumption (spent brine flow rate) Treat perchlorate to non-detectable levels Ion Exchange Pilot Test

  6. Results ClO4- to non-detectable levels Brine waste reduced to 0.16 % Reuse of 91% “purified” brine Further Investigation Brine treatment technology Energy cost Ion Exchange Pilot Test

  7. US Filter-Envirogen “FBR” system September 2000 - December 2000 Objectives Treat perchlorate to non-detectable levels Optimize nutrient additions Develop full-scale design Test robustness and reliability of system Fluidized Bed Bioreactor Pilot Test

  8. Results Perchlorate treated to non-detectable levels in three project phases Ethanol feed rate optimized Further Investigation Use of native “JPL bacteria” Treatment of low-concentration perchlorate influent stream Fluidized Bed Bioreactor Pilot Test

  9. Foster Wheeler/Arcadis March 2001 - present Three Packed Bed Bioreactors Objectives Treat perchlorate to non-detectable levels Find optimal organism/food combination Optimize bed packing material Treat low-concentrations of perchlorate Packed Bed Reactor Pilot Test

  10. Results (as of May 24, 2001) Perchlorate treated to non-detectable levels Choice of bacteria not essential to optimization Further Investigation Different packing materials Low-concentration influent New reactor designs Packed Bed Reactor Pilot Test

  11. Envirogen Microcosm Study (SERDP) Arcadis Molasses Injection Regulatory Issues In-Situ Pilot Test

  12. Planned Project Determine proper electron donor Well type/recirculation Regulatory Issues Startup - September 2001 In-Situ Pilot Test

  13. Technology - Many Choices Main Drivers at JPL: Disposition of Treated Water Cost - Electricity/Waste Streams Community Acceptance Site Geology Treatment Standard Conclusions

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