On-line Sorting Technologies for CCA Treated Wood Sarasota Team Meeting February 27, 2001.
On-line Sorting Technology for CCA-Treated Wood. Funding Received from Sarasota County through the...
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Transcript of On-line Sorting Technology for CCA-Treated Wood. Funding Received from Sarasota County through the...
![Page 1: On-line Sorting Technology for CCA-Treated Wood. Funding Received from Sarasota County through the Florida Department of Environmental Protection Innovative.](https://reader038.fdocuments.net/reader038/viewer/2022103022/56649d135503460f949e738e/html5/thumbnails/1.jpg)
On-line Sorting Technology for CCA-Treated Wood
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Funding Received from
Sarasota County
through the Florida Department of Environmental Protection
Innovative Recycling Grants Program
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Objective
Construct and Operate an On-Line System for Sorting Treated From Untreated Wood
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Background
Research conducted found CCA-treated wood in C&D waste piles
6% in 1996 (12 C&D facilities) 9 to 30% in 1999 (3 C&D facilities)
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Background
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1.619
80
1982
1984
1986
1988
1990
1992
1994
1996
1998
bill
ion
cu
bic
fee
t
Untreated
Treated
(From SFPA)
U.S. Statistics for Southern Pine Production
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Conceptual Design10’
7’ 3’ 4’ 16’
C o ntro lRo o m
C lo se dIn
Wo o dPile
C o nve yo rDe te c to r
30’
7’
3’
4’
2’
14’
5’ 18’40’
Inp ut Wo o dSto ra g e
Pile
Tre a te dPile
Untre a te dPile
De te c to rC o nve yo rWo o d Inp ut
Untre a te d Wo o d
C o ntro l Ro o m
Wind o w
30’
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Conceptual Design (con’d)Inle t C o nve yo r
De
tec
tor
Wo o d Sa m p le
Exit C o nve yo r
To Untre a te d Pile
Initia lly Se p a ra tio n He re WillBe Do ne M a nua lly
A b uzze r will so und o r a lig ht will shine whe nC C A is d e te c te d
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Tasks
Task 1: Obtain Permit and Construct Shelter Task 2: Design and Construct Conveyor Task 3: Lab Test and Develop Detector
(Laser, LIBS vs X-ray, XRF) Task 4: Install and Field Test Conveyor and
Detector Task 5: Operate Sorting System and Document
Performance
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Overall Timeline
Description 2000 2001
M A M J J A S O N D J F M A M J J A S
Task 1: Obtain Permit and ConstructShelter
X
Task 2: Design and Construct Conveyor X
Task 3: Lab Test & Develop Detector X X
Task 4: Install and Field Test Conveyorand Detector
X
Task 5: Operate Sorting System andDocument Performance
X
Submit Environ. Certification and Scopeof Services
X
Progress Reports X X X X
Final Report X
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Task 1:Obtain Permit and Construct
Shelter
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Outline
Specifications and location of shelter Construction process
Shelter construction contractors Project management
Project schedule
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Shelter Description
Metal fabricated building 30 by 40 feet, 15 foot eave height Portal frame with open sides, 1:12 sloped
roof Engineered concrete slab
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Approximate Size and Roof Line
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Portal Frame
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Open Sides and Height
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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
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Shelter Location
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Construction Process
Metal fabricator - shelter design County engineer - concrete design
Slab Anchor bolts
Electric - separate subcontractor
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Anchor Bolt Detail
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Available Electric
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Shelter Contractor Quotes
Uni-Built, Tampa, FL Dura-Steel, Vernon, FL Trident, Sarasota, FL Ranged $9,000 - $17,000
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Project Management
Review plans and permit documents Coordinate inspection schedule of
foundations, structural steel and electrical system
Review work in-place prior to scheduled inspection by Building Department
Prepare written summary of field inspections
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Review and Concrete/Electrical
Design
Building ContractorDevelops Design
Drawing
2 Wk
2 Wk
5 Wks
Permit Review
1 Wk PO/Contract Finalized
6 Wks
Fabrication and Delivery
Concrete Slab
Erect BuildingInstall ElectricSchedule and Timeline
July
28
August
4 21
September
1 15
3 Wks
October
1 12 27
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Task 2:Design and Construct Conveyor
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Conveyor (Task 2)
Preliminary Quotes American Conveyor, Miami, FL ** Powerscreen, Lakeland, FL
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Conveyor (Task 2)
Ta b le Ro lle r C o nve yo r Be lt C o nve yo rInc line d
Be lt C o nve yo r
Ro ll-o ff
12 ’
305’ 10’ 15’
3 ’
O
XRF De te c to r
La se rC o nve yo r, 5’ wid e
Most Recent Design
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Conveyor (Task 2)
5’
10’
15’5’
10’
30’
40’
Inc o m ingWo o d
C C A-Tre a te dWo o d
Inc
line
Co
nve
yor
O the r Wo o dTyp e s
Ro ll-o ff
Co
ntro
l Ro
om
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Task 3:Lab Test and Develop Detector
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LIBS vs XRF
Funds will be used for LIBS Research with XRF will continue if
equipment “borrowing” arrangement can be made
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Laser-induced Breakdown Spectroscopy (LIBS)
Pulsedlaser
Laser-inducedplasma
Atomicemissioncollection
Spectrometer Detector
Wavelength (nm)
Inte
nsity
205 210 215 220 225 230 235 240 245
Cd
Cd
Cd
Be
Line intensity providesspecies concentration
Line position providesspecies identification
Fiberoptic
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LIBS Spectrum of CCA-treated Wood
0
2000
4000
6000
8000
10000
12000
14000
410 415 420 425 430 435 440
Em
issio
n I
nte
nsity
Wavelength (nm)
Calcium(422.67)
Chromium425.54427.48428.97
Weathered
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LIBS-based Sorting
0
10
20
30
40
50
60
0 1 2 3 4 5 6 7
LIB
S C
hro
miu
m S
ign
al
Wood Sample
CCA-treated Wood
Untreated Wood
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Sample Configuration of LIBS Probe
Spectrometer/Detector
Collection Optics Assembly
Plasma
Nd:YAGLaser
To LaptopComputer
WoodSample
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Field-deployable Laser: Big Sky Laser
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Compact Spectrometer: Ocean Optics
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On-line Sorting Technologies
Custom LIBS Commercial XRF(Asoma)
Custom XRF
Cost $36K $20 to $30K $100K
Detection As, Cr, Cu As, Cr, Cu As, Cr, Cu
Analysis time 3 ms @ 10 Hz 50 to 100 s 100 to 500 ms
Spatial resolution(1 ft/sec)
Point1.25" samples
Start/stop mode Continuous2.5" to 12" samples
Standoff distance(Detector-to-wood)
Variable10-12" window
FixedNear contact
~FixedClose proximity
Other issues Laser beam X-ray source X-ray source
Maintenance $400 flashlamp~35 weeks
- - X-ray tube
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XRF
ASOMA ----> Now Spectro Contact Harold Soisson Model 400
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XRF
Co XRF ----> Distributors of EDAX Contact Steve Cox Model, CT-2000
Note: As detection limit 5 mg/kg
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Questions?
More information at:http://www.eng.miami.edu/~hmsolo/
sarasota/index_sara.htm
Link from: www.ccaresearch.org