history of research project on cca treated wood presented august 18 2005 tag meeting
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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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Presentation Transcript
slide2
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

slide3
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

slide4
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

approx 32 students supported on cca projects since beginning of project
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

guest speakers
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

original motivation for project
Original Motivation For Project

Ash Disposal Problem, 1995

year 1 c d wood testing
Year 1: C&D Wood Testing
  • Processed Wood at C&D Recycling Facilities

6% CCA by Weight

slide12
Slower Rate of Release but

More Concentrated

As

year 2 ash leaching studies
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)
year 2 sorting
Year 2: Sorting

Untreated

Treated

  • Sorting Studies, Laboratory
    • Chemical stains, low capital costlabor intensive
    • X-ray methods, high capital costsuitable for on-line system
outline of work since 1999
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)
experimental set up
Experimental Set-up

rainwater runoff collection vessel

precipitation

deck

sandy soil, 2 ft

Infiltrating rainwater

gravel

disposal
Disposal
  • Leaching New and Weathered Wood
  • Chemical Alternatives to CCA
  • Sorting Methods*
  • Mulch Studies*
slide23
Field-Scale Leaching

2 Monofills / 2 C&D / 2 MSW

slide26
Sorting

Test Kits

Laser

Untreated

Treated

x-ray

x-ray

x-ray

work products
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
questions

Questions?

technical reports available at:

www.ccaresearch.orgunder the “publications” link

[email protected]@[email protected]

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