Material Disposition Planning Olga Ligeti Radiation Protection Department MARCH 24, 2009.
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Transcript of Material Disposition Planning Olga Ligeti Radiation Protection Department MARCH 24, 2009.
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Material Disposition Planning
Material Disposition Planning
Olga Ligeti
Radiation Protection Department
MARCH 24, 2009
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OverviewOverview
• CURRENT CONDITIONS
• PEP D&D SCOPE
• MATERIAL DISPOSITION PLAN
• REUSE CONSIDERATIONS
• WASTE DISPOSAL CONSIDERATIONS
• STORAGE CONSIDERATIONS
• CONCLUSIONS
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CURRENT CONDITIONSCURRENT CONDITIONS
PEP Ring and BABAR are Radiological Areas and all metal and metal containing objects within the accelerator tunnel are subject to:
• METAL MORATORIUM
• METAL SUSPENSION
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CURRENT CONDITION ALLOWANCESCURRENT CONDITION ALLOWANCES
• METAL & METAL CONTAINING ITEMS– May be conditionally released for re-use for
their intended purpose at other facilities, whether radioactive or not.
– May be stored on site with an identified future use whether radioactive or not.
– Non-radioactive items may be stored on or off-site.
– Radioactive items without identified future use will be disposed of as radioactive/mixed waste.
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PEP LIMITED SCOPE D & D PEP LIMITED SCOPE D & D
• ITEMS TO REMAIN IN PLACE IN THE RING– Tunnel structure– Communication and annunciation system– Fire detection system– Fire suppression system– Overhead lights– Cooling water headers and pumps– Water collection & pumping systems– AC power conduits, breaker boxes and welding
outlets– Shielding blocks at IR halls– Cable trays
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D&D SCOPED&D SCOPE
• REMOVAL FOR POTENTIAL RE-USE– Electro-magnets– Vacuum chambers– Supports– Power Supplies– Controls, RF station, monitors– Beam feedback system– Cavities, Klystrons, HVPS, Waveguide– CAMAC– Some Computers– Some Racks
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D&D SCOPE cont.D&D SCOPE cont.
• POTENTIAL WASTE ITEMS– Beam dumps– Cables– Grout– Water Hoses– Some Computers– Some Racks– Any other items removed without an identified
intended use or whose future use is nullified
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CURRENT GROSS RADIOLOGICAL SURVEYCURRENT GROSS RADIOLOGICAL SURVEY
• Specific items in highlighted regions showed activation- not all items in region
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MATERIAL DISPOSITION PLANMATERIAL DISPOSITION PLAN
• RE-USE– PEP-X– FERMI Lab– Italy
• OFF- SITE DISPOSAL– Mixed Waste – Radioactive Waste– Hazardous Waste– Universal Waste– Electronic Waste
• ON SITE STORAGE– Use Pre-existing structure– Build a structure
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MATERIAL & WASTE FLOW DIAGRAMMATERIAL & WASTE FLOW DIAGRAM
ON SITE STORAGE FOR REUSE
ITEMS REMOVED FROM TUNNEL
DISPOSE - RWM
WASTE?
SLAC DOE SUSPENSION
RELEASE PROTOCOL
DISPOSE - WM
RESTRICTED RELEASE
FOR INTENDED PURPOSE
REUSE – ON/OFF SITE
RAD? HAZ?
HAZ?
METAL?VALUE/REUSE?
YES
YES YES
NO
NO
NO
YES YES
NO
YES
NO NO
YES
RAD? TRASH
PROPERTY CONTROLRECYCLE
NO
APPROVED
YES
NOT APPROVED
HOLD
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OFF-SITE REUSE CONSIDERATIONSOFF-SITE REUSE CONSIDERATIONS
• Radiation levels which trigger regulation by the Department of Transportation– Isotope specific
• Concentration (Bq/g) Based• Total activity per consignment
– Packing/Shipping • Performed or directly supervised by DOT trained personnel
• Radioactive items require characterization for proper DOT classification– Gamma spec analysis– Other chemical hazards
• Export Controls– Stanford authorization required
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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS
• Mixed Wastes– Ship out within 90-days of generation– Limited treatment facilities and options
• Use process knowledge to identify activated items with hazardous components
• Characterize in advance of generation– Sample paints while still in place– Low background area for gamma spec analysis
– Disposal Cost• At least $174.00 per cubic foot
– Macro-encapsulation – such as painted items
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POTENTIAL MIXED WASTE EXAMPLES FROM PEP IIPOTENTIAL MIXED WASTE EXAMPLES FROM PEP II
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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS
• Radioactive Waste– Dispose of within 12 months of generation– Energy Solutions or Nevada Test Site– Staging Area for waste processing– Disposal Cost
• Range from $18.00/cuft at NTS to $22.00/cuft EnergySolutions• NTS pricing varies yearly based on volume projections
– Disposal at NTS requires an NTS approved generator Waste Certification Program or the use of an NTS authorized Broker Waste Certification Program
• Increased up-front costs– Broker – project specific pricing
– SLAC’s own certification
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15RADIOACTIVE WASTE PROCESSING DOCUMENT FLOWRADIOACTIVE WASTE PROCESSING DOCUMENT FLOW
RADIOACTIVE WASTE
LOW LEVEL WASTE
MIXED WASTE
HAZ?
YES
NO
Generator Completes Hazardous Waste
Determination Form
YES
MAYBE
NOYES
DISPOSAL PATH?
Generator Completes
Mixed Waste
Generation Request
Form
SUBMIT TO RWM
REQUESTOR’S ASSOCIATE DIRECTOR APPROVAL
ES&H DIRECTOR APPROVAL
DOE SSO APPROVAL
NO
YES
YES
MEETS WAC?YES
Generator Completes WAC Exemption Request Form
NO
UNACCEPTABLE
Generator Completes Radioactive Waste Declaration Form
YES
YES
ACCEPTABLE
RWM PROCESS WASTE FOR OFF-SITE DISPOSAL
RE-EVALUATE
NO
NO
NO
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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS
• Hazardous Waste– Ship out within 90-days of generation
• Characterize in advance of generation
– Disposal Costs vary with hazards• $10 - $150 per cubic foot
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OFF-SITE DISPOSAL CONSIDERATIONSOFF-SITE DISPOSAL CONSIDERATIONS
• HAZARDOUS WASTES– Exemptions from regulation due to recycling and
management systems• Painted Metals – Sold – can generate income• Electronic Wastes - $2-5/cuft• Universal Wastes - $6-95/cuft
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TRANSPORTATIONTRANSPORTATION
• Trucking– 40,000 lbs load limit
• Additional weight and size permits must be obtained in advance
– DOT Regulated Hazardous Materials• Radioactive Materials, Radioactive Wastes, Mixed Wastes,
Hazardous Wastes, and Hazardous Materials– Registered and licensed hauler– Commercial Drivers License (CDL) with appropriate
endorsements
– Cost• Destination/Diesel/Regulation based pricing
– DOT Regulated shipment $3000 NTS (NV)- $4000 EnergySolutions (UT)
– Non–Regulated shipment $2000 NTS (NV) - $2500 EnergySolutions (UT)
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ON SITE STORAGE CONSIDERATIONSON SITE STORAGE CONSIDERATIONS
• Recommend no storage outdoors– Environmental consideration / Upkeep
• Rust flakes• Paint chips
• Use existing structures – As detailed in B. Wisniewski’s presentation– Modifications for access
• Racks, isle spaces
• Building New Structure – As detailed in J. Seeman’s presentation– Design– Building Code requirements– Access
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CONCLUSIONCONCLUSION
• SLAC possesses the competencies and protocols for managing Radioactive, Mixed, and Hazardous Wastes
• Obtaining approval for SLAC’s proposed DOE Suspension release protocol– Non-Radioactive metals largest volume of
items generated in the dismantling