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Management of Commercially Generated Radioactive Waste - U.S. ...

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4.3<br />

TABLE 4.1.1. Predisposal Operations and Alternatives for Once-Through Cycle Disposal<br />

Options<br />

Shipment Shipment Shipment<br />

Disposal to Interim Interim to Treatment and to<br />

Option Storage Storage Treatment Packaging Disposal<br />

Mined geologic Rail and Truck Water basin Rail and truck Encapsulate indi- None if<br />

vidual assemblies onsite or<br />

rail if<br />

<strong>of</strong>fsite<br />

Alternatives<br />

include pack- Alternatives<br />

aged fuel include:<br />

storage in:<br />

* Encapsulate<br />

multiple<br />

* Dry wells assemblies<br />

* Disassemble<br />

and encapsulate<br />

* Air cooled<br />

vaults * Chop, voloxidize<br />

and<br />

encapsulate<br />

e Surface<br />

casks * Dissolve and<br />

convert to<br />

glass(a)<br />

Very deep<br />

holes<br />

Same as above Same as above Same as above Same as above Same as above<br />

Rock melting Same as above Same as above Same as above Dissolve and dispose<br />

as liquid(a,b)<br />

Onsite<br />

disposal<br />

Island Same as above Same as above Same as above Same as mined Rail, ocean<br />

geologic island ship and<br />

transports island<br />

transporter<br />

Subseabed Same as above Same as above Same as above Same as mined<br />

geologic<br />

Rail and<br />

ocean ship<br />

Ice sheet Same as above Same as above Same as above Same as mined<br />

geologic<br />

Rail, ocean<br />

ship and<br />

over-ice<br />

vehicle<br />

Well injection Same as above Same as above Same as above Dissolve and dispose<br />

as liquid(a,b)<br />

Onsite<br />

disposal<br />

Transmutation Same as above Same as above Same as above Dissolve, partition,<br />

fabricate<br />

targets, irradiate<br />

and reprocess<br />

targets(<br />

Truck or<br />

rail to<br />

and from<br />

irradiation<br />

a )<br />

Injection into<br />

Space<br />

Same as above Same as above Same as above Dissolve and convert<br />

to "cermet"<br />

matrix in<br />

capsules<br />

Rail to<br />

launch site;<br />

launch to<br />

a ) orbit, see<br />

Section 6.1.8<br />

(a) Spent fuel treatment involving dissolution produces TRU wastes requiring all <strong>of</strong> the TRU waste predisposal<br />

operations shown in Table 4.1.3. for reprocessing cycle wastes. These TRU wastes then<br />

probably will require mined geologic disposal.<br />

(b) Disposal <strong>of</strong> spent fuel as an aqueous liquid in the rock melting and well injection options may not<br />

be feasible because <strong>of</strong> criticality questions.

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