On-line Sorting Technology for CCA-Treated Wood

Funding Received from Sarasota County through the Florida Department of Environmental Protection Innovative Recycling Grants Program

Objective n Construct and Operate an On-Line System for Sorting Treated From Untreated Wood

Background n Research conducted found CCA-treated wood in C&D waste piles ä 6% in 1996 (12 C&D facilities) ä 9 to 30% in 1999 (3 C&D facilities)

Background (From SFPA) U.S. Statistics for Southern Pine Production

Conceptual Design

Conceptual Design (con’d)

Tasks n Task 1: Obtain Permit and Construct Shelter n Task 2: Design and Construct Conveyor n Task 3: Lab Test and Develop Detector (Laser, LIBS vs X-ray, XRF) n Task 4: Install and Field Test Conveyor and Detector n Task 5: Operate Sorting System and Document Performance

Overall Timeline

Task 1: Obtain Permit and Construct Shelter

Outline n Specifications and location of shelter n Construction process ä Shelter construction contractors ä Project management n Project schedule

Shelter Description n Metal fabricated building n 30 by 40 feet, 15 foot eave height n Portal frame with open sides, 1:12 sloped roof n Engineered concrete slab

Approximate Size and Roof Line

Portal Frame

Portal Frame and Open Sides

Open Sides and Height

Site Layout Parking Office Trailer Shelter Bin Wood In Wood Out Proposed Parking Machine Shop C&D Materials Processing Area C&D Material Storage Bins Entrance

Shelter Location

Construction Process n Metal fabricator - shelter design n County engineer - concrete design ä Slab ä Anchor bolts n Electric - separate subcontractor

Anchor Bolt Detail

Available Electric

Shelter Contractor Quotes n Uni-Built, Tampa, FL n Dura-Steel, Vernon, FL n Trident, Sarasota, FL n Ranged $9,000 - $17,000

Project Management n Review plans and permit documents n Coordinate inspection schedule of foundations, structural steel and electrical system n Review work in-place prior to scheduled inspection by Building Department n Prepare written summary of field inspections

Review and Concrete/Electrical Design Building Contractor Develops Design Drawing 2 Wk 5 Wks Permit Review 1 Wk PO/Contract Finalized 6 Wks Fabrication and Delivery Concrete Slab Erect Building Install Electric Schedule and Timeline July 28 August 4 21 September Wks October

Task 2: Design and Construct Conveyor

Conveyor (Task 2) n Preliminary Quotes ä American Conveyor, Miami, FL ** ä Powerscreen, Lakeland, FL

Conveyor (Task 2) Most Recent Design

Conveyor (Task 2)

Task 3: Lab Test and Develop Detector

LIBS vs XRF n Funds will be used for LIBS n Research with XRF will continue if equipment “borrowing” arrangement can be made

Laser-induced Breakdown Spectroscopy (LIBS)

LIBS Spectrum of CCA-treated Wood

LIBS-based Sorting

Sample Configuration of LIBS Probe

Field-deployable Laser: Big Sky Laser

Compact Spectrometer: Ocean Optics

On-line Sorting Technologies

XRF n ASOMA ----> Now Spectro ä Contact Harold Soisson ä Model 400

XRF n Co XRF ----> Distributors of EDAX ä Contact Steve Cox ä Model, CT-2000 Note: As detection limit 5 mg/kg

Questions? More information at: sarasota/index_sara.htm Link from: