1. Augmented Sorting of Recovered Wood Waste Using Stain and X-Ray Technologies Recently Awarded by the FDEP Innovative Recycling Grants Program to the Town of Medley

2. Objectives Evaluate two innovative technologies for identifying and removing CCA-treated wood within recovered wood waste. PAN Indicator Stain X-ray Technology (hand-held units)

3. Tasks Sort 10 tons (minimum) of dimensional C&D waste wood using visual methods, PAN stain and XRF unit Document speed and costs. Picking Line Sorts No augmentation With stain With XRF Documentation Phase I Phase II

4. Project Collaborators Host Facility

5. Why Are New Methods Needed for Sorting?

7. Sorting Technologies (Previous Work) Chemical Stains Arsenic Test Kit Laser (LIBS) X-ray (XRF) Time consuming but inexpensive For a few samples Suited for on-line applications

8. Chemical Stains Low Capital Cost, Labor Intensive Chemical stains  Chrome Azurol  PAN Indicator**  Rubeanic Acid UntreatedTreated Stains Are Not Arsenic Specific

9. On-Line Technologies (Previous Work in Sarasota County) Laser Induced Breakdown Spectroscopy (LIBS) X-Ray Flourescence Spectroscopy (XRF)

10. DETECTORS laser x-ray

11. X-Ray Fluorescence Technology

12. Incident X-ray from the analyzer strikes an electron occupying the lowest shell Electron is ejected An upper-shell electron drops down to fill the vacancy X-ray characteristic to this elements’ energy is emitted Incident X-Ray Ejected e- Emitted X-Ray Transitioned e- Nucleus Theory of X-Ray Fluorescence

13. XRF Field Photos

14. ¾”

15. Treated vs. Untreated Wood

16. Dry vs. Wet Treated Wood

17. Dry vs. Wet Untreated Wood

18. Alternative Chemicals

19. Distance readings

20. New XRF Unit Portable hand-held XRF units

21. Preliminary Testing at Wood Recycling Facility

22. Preliminary Testing

23. Demonstration with Innov-X Unit at End of Meeting