transportation of radioactive materials
TRANSCRIPT
Transportation of Radioactive Materials
CRESP Short CourseAugust 2009
Mark AbkowitzDepartment of Civil & Env Engp g
Vanderbilt [email protected]
Types of Radioactive Shipments
Uranium ores
Isotopesp– Medical– Industrial– Research
Weapons-related materials
Radioactive “waste”– Spent fuel (SNF)– High level waste (HLW)– Transuranic waste (TRU)– Low-level waste (LLW)– Mixed low-level waste– Reactor components– Uranium mill tailings
Current locations of spent nuclear fuel and high-level radioactive
128
gwaste destined for geologic disposal: 128 sites in 39 states
Cargo Waste Forms & Package Designs
DOESites
CentralizedStorage
DevelopAnd
ImplementTechnology
Yes
AlternativeStorageLocation
HLW
DOE & NavySNF
Glass129I 3H 14C 85Kr
To AtmosphereHLW
DOE & NavalSNF
Dry Storage atUtility Site
Use ofAlternative
Technology?No
Wet Storage atUtility Site
Light WaterReactors
Uranium
Vitrification
100 YearStorage
137Cs 90Sr
Repository
HLW
SNFTransfer to
UncanisteredTransportation
Casks
Plutonium
Minor ActinidesAnd
Fission Products
ReprocessCSNF
RecycledUO2
AssemblyFabrication
Storage
AlternativeStorageMethod
RecycledMOX
AssemblyFabrication
NewUO2
AssemblyFabrication
Assemblies
Less than? In-reactor
Cycles?
Waste
No
Less than3 In-reactor
Cycles?
NewUranium
Enrichment
RecycledUranium
Enrichment Cladding
Consumables
LLW from other processes
UF6
Yes
UF6
Yes
GreaterThan
Class CWaste
Low LevelWaste
Waste
No
WasteUraniumTails
UraniumTails Waste
ChemicalPlant
Uranium MiningAnd
Refining
YellowCakeUF6
Nuclear Fuel Cycle OptionsSource: Nuclear Waste Technical Review Board
The Transportation Challenge
Spatial diversity of shipping origins
M t fMany waste forms
Varying volumes to be shipped
UncertaintiesUncertainties– Where to ship?– When to ship?
Topics of Interest
Transportation system infrastructure
R di ti hi t l tRadioactive shipment regulators
Responsibilities of shippers & carriers
Mode selectionMode selection
Routing
Operational issuesOperational issues
Institutional considerations
Experience to datep
Risk perception
Transportation System Infrastructure
Transportation networks
Rolling stock
Transportation casks
L di / l di f ilitiLoading/unloading facilities– Wet/dry storage handling– Crane capacity
Maintenance facilities
Radioactive Materials Transport Regulators
U.S. Department of Transportation– Training– Packaging– Labeling/placarding– Shipping papers– Loading/unloading
Nuclear Regulatory CommissionNuclear Regulatory Commission– Package design & performance– Safeguards & security
Oth (USPS OSHA EPA IAEA IMO ICAO)Others (USPS, OSHA, EPA, IAEA, IMO, ICAO)
Responsibilities of Shippers & Carriers
Shipper– Classifies & packages radioactive materials– Marks & labels packages– Completes & signs shipping papers– Selects carrier
Carrier– Reviews shipping papersReviews shipping papers– Placards vehicle– Stows & secures package– Complies with driver training and routingComplies with driver training and routing
requirements– Follows vehicle safety requirements– Reports incident (if one occurs)p ( )
Mode Selection
Rail– Regular train– Dedicated train
Truck– Legal weight– Overweight– Heavy haulHeavy haul
Barge
Intermodal
Factors Affecting Mode Selection
C &Container size & weight
Characteristics & composition of radioactivecomposition of radioactive contents
Shipping distanceShipping distance
Availability of transportation facilities & infrastructurefacilities & infrastructure
RoutingHighway (DOT HRCQ Routing Regulations)Highway (DOT HRCQ Routing Regulations)
Vehicles operate over preferred routes– Interstate highway system, including bypasses or beltways
– A state or tribe may designate alternative routes
Alternative route selection based on multiple criteriaT l ti– Travel time
– Accident rate
– Population density & special events
– Temporal considerations (time of day, day of week, season)
– Continuity of operations
RailRail
There are no federal rail routing regulations
Standard rail industry practicesStandard rail industry practices– Minimize time, distance, number of carriers, interchange points
– Maximize use of best track
Operational Issues
Permits and fees
Advance notification
Inspections
Security– Accessibility– Vulnerability
Tracking & communicationsTracking & communications
Safe parking
Contingenciesg
Emergency response– First response
Q lifi d– Qualified response
Recovery & cleanup
Institutional Considerations
Transportation organization and cultureand culture
Management processes
Stakeholder identification & interactions
Issue resolution
Experience to Date
– Roughly 3,000 shipments in the U.S. during the past 30 years
– 738 Navy container shipments, over 1 million miles since 1957over 1 million miles since 1957
– Average 650 shipments per year in France and Britain
– There has never been a release of radioactive material harmful to the public or the environmentto the public or the environment
Perceived Relative Risks of Energy Sources
Considering the risks of normal operations and potential accidents, how do you rate the risks to society and the environment from these sources of energy?ate t e s s to soc ety a d t e e o e t o t ese sou ces o e e gy
Means
6.40 6.506.736.14
6
8
10
2.81 2.352
4
6Web 06 Web 07
0
Fossil Fuels Nuclear Energy
Renewable Sources
p = 0003 p = 0007 p < 0001p = .0003 p = .0007 p < .0001
Source: Hank Jenkins-Smith
Perceived Risks vs. Benefits of Nuclear Energy
How do you rate the overall balance of risksand benefits of nuclear energy in the US?and benefits of nuclear energy in the US?
30
35
20
25
30
% Web 06: 4.32 Web 07: 4 57
5
10
15 Web 07: 4.57
p < .0001
01 2 3 4 5 6 7
Risks FarOutweigh Benefits
Benefits FarOutweigh Risks
Risks =Benefits
Source: Hank Jenkins-Smith
Thank You
Questions?Questions?