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History of Research Project on CCA-Treated Wood Presented August 18, 2005 TAG Meeting

History of Research Project on CCA-Treated Wood Presented August 18, 2005 TAG Meeting. Funding Received from Florida Center for Solid and Hazardous Waste Mngt. Florida Power and Light Sarasota County & Town of Medley/ Florida Department of Environmental Protection

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History of Research Project on CCA-Treated Wood Presented August 18, 2005 TAG Meeting

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  1. History of Research Project on CCA-Treated WoodPresented August 18, 2005TAG Meeting

  2. Funding Received from Florida Center for Solid and Hazardous Waste Mngt. Florida Power and Light Sarasota County & Town of Medley/ Florida Department of Environmental Protection Florida International University/NIEHS Rutgers University/NIEHS U.Miami/NIEHS University of Florida FCES Center/NSF Public Health Trust, CA

  3. Core Team of Faculty Researchers Additional Faculty Researchers Gabriel Bitton, Ph.D. David Hahn, Ph.D. Professor, Env. Micro/Tox Assoc. Prof., Mechanical – Laser Yong Cai, Ph.D. Stuart Shalat, Sc.D. Assoc. Prof., Chemistry Assoc. Prof., Epidemiology/Pesticides Lora Fleming, M.D., Ph.D. C.Y. Wu, Ph.D. Professor., Epidemiology/MPH Assist. Prof., Env. Engineering/Air Helena Solo-Gabriele, Ph.D., P.E., Timothy Townsend, Ph.D. Professor, Civil/Environ. Engrg Assoc. Prof., Environ/Solid Waste Engrg

  4. Today’s Meeting Helena Solo-Gabriele, Ph.D., P.E., C.Y. Wu, Ph.D. Assoc. Prof., Civil/Environ. Engrg Assoc. Prof., Environ/Air Pollution Control Engineering Tim Townsend, Ph.D., P.E. Tim Townsend, Ph.D., P.E. Assoc. Prof., Environ/Solid Waste Engrg Assoc. Prof., Environ/Solid Waste Engrg Joint Meeting

  5. Approx. 32 Students Supported on CCA Projects Since Beginning of Project Today’s Student Presenters Colleen Block, B.S. candidate from U.Miami Brajesh Dubey, Ph.D. candidate from U.Florida Gary Jacobi, M.S. candidate from U.Miami Anadi Misra, M.S. candidate from U.Florida Amy Omae, M.S. candidate from U.Miami Tomoyuki “Shiba” Shibata, Ph.D. candidate from U.Miami

  6. Guest Speakers Claire Cornillier, CTBA, Technical Centre for  Wood  and Furniture, Bordeaux, France Harvey Schneider, President, Florida Wood Recycling Medley, FL John Schert, Executive Director, Florida Center for Solid and Hazardous Waste Mgt. and Florida Center for Environmental Solutions, Gainesville, FL

  7. History of Research Activities

  8. Original Motivation For Project Ash Disposal Problem, 1995

  9. FCSHWM Year 1 (1996-1997)

  10. Year 1: C&D Wood Testing • Processed Wood at C&D Recycling Facilities 6% CCA by Weight

  11. Year 1: Disposal Forecast (Updated 2005) As

  12. Slower Rate of Release but More Concentrated As

  13. FCSHWM Year 2 (1997-1998)

  14. Year 2: Ash Leaching Studies • Leaching Studies, ash • Hazardous when CCA-treated wood represents 5% of wood burned • Solvents can extract metals from ash, citric acid very promising (40 to 100% As removed)

  15. Year 2: Sorting Untreated Treated • Sorting Studies, Laboratory • Chemical stains, low capital costlabor intensive • X-ray methods, high capital costsuitable for on-line system

  16. Outline of Work Since 1999 • In-Service Issues • Impacts on Soil • Runoff and Infiltration* (NIEHS funding) • Playgrounds and Children* (NIEHS funding) • Disposal • Leaching New and Weathered Wood • Chemical Alternatives to CCA • Sorting Methods* (FDEP/Medley) • Mulch Studies* (FCSHWM)

  17. In-Service: Soil Impacts

  18. In Service: Soil Impacts

  19. Experimental Set-up rainwater runoff collection vessel precipitation deck sandy soil, 2 ft Infiltrating rainwater gravel

  20. Disposal • Leaching New and Weathered Wood • Chemical Alternatives to CCA • Sorting Methods* • Mulch Studies*

  21. Leaching of CCA-Treated Wood

  22. TCLP Limit Leaching of CCA-Treated Wood TCLP

  23. Field-Scale Leaching 2 Monofills / 2 C&D / 2 MSW

  24. Synthetic Rainfall Chemical Alternatives: Leaching

  25. Less Toxic CCA ACQ CC CDDC CBA Chemical Alternatives: Aquatic Toxicity

  26. Sorting Test Kits Laser Untreated Treated x-ray x-ray x-ray

  27. Work Products • 8 FCSHWM reports, Finalized (available on-line) • 1 FCSHWM reports, Draft (available on-line) • 2 FCSHWM reports, Pending • 13 peer-reviewed journal articles published, 2 accepted, and 3 submitted • Plus approx 40 conference proceedings and other papers

  28. Questions? technical reports available at: www.ccaresearch.orgunder the “publications” link hmsolo@miami.eduttown@ufl.educywu@ufl.edu

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