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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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 WoodPresented August 18, 2005TAG 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

Florida International University/NIEHS

Rutgers University/NIEHS

U.Miami/NIEHS

University of Florida FCES Center/NSF

Public Health Trust, CA


Core Team of Faculty Researchers

Additional Faculty Researchers

Gabriel Bitton, Ph.D.David Hahn, Ph.D.

Professor, Env. Micro/ToxAssoc. Prof., Mechanical – Laser

Yong Cai, Ph.D.Stuart Shalat, Sc.D.

Assoc. Prof., ChemistryAssoc. 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. EngrgAssoc. Prof., Environ/Solid Waste Engrg


Today’s Meeting

Helena Solo-Gabriele, Ph.D., P.E., C.Y. Wu, Ph.D.

Assoc. Prof., Civil/Environ. EngrgAssoc. 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

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

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


History of Research Activities


Original Motivation For Project

Ash Disposal Problem, 1995


FCSHWM Year 1 (1996-1997)


Year 1: C&D Wood Testing

  • Processed Wood at C&D Recycling Facilities

    6% CCA by Weight


Year 1: Disposal Forecast

(Updated 2005)

As


Slower Rate of Release but

More Concentrated

As


FCSHWM Year 2 (1997-1998)


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

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

  • 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)


In-Service: Soil Impacts


In Service: Soil Impacts


Experimental Set-up

rainwater runoff collection vessel

precipitation

deck

sandy soil, 2 ft

Infiltrating rainwater

gravel


Disposal

  • Leaching New and Weathered Wood

  • Chemical Alternatives to CCA

  • Sorting Methods*

  • Mulch Studies*


Leaching of CCA-Treated Wood


TCLP

Limit

Leaching of CCA-Treated Wood

TCLP


Field-Scale Leaching

2 Monofills / 2 C&D / 2 MSW


Synthetic Rainfall

Chemical Alternatives: Leaching


Less

Toxic

CCA

ACQ

CC

CDDC

CBA

Chemical Alternatives: Aquatic Toxicity


Sorting

Test Kits

Laser

Untreated

Treated

x-ray

x-ray

x-ray


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?

technical reports available at:

www.ccaresearch.orgunder the “publications” link

[email protected]@[email protected]


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