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

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I* LWR<br />

Reactors<br />

6.29<br />

<strong>Waste</strong> Sources * Production, propulsion Fuel Cycles<br />

i* * Domestic civilian<br />

& research<br />

* & LMFBR research<br />

U & Pu recycle cases<br />

* Domestic defense * HTGR * Once-throughcycle (LWR)<br />

' Foreign * CANDU<br />

* Magnox<br />

* Pebble bed<br />

<strong>Waste</strong> Forms<br />

<strong>Waste</strong> Mixes I R Transport<br />

Domestic civilian * Calcine * Not transportable<br />

SHigh-level waste from purex process * Supercalcine - * Rail<br />

SSpent fuel assemblies or rods * Coated particles Truck<br />

*TRU wastes<br />

h Refractory compounds * Ship/Barge<br />

c Metal matrix * Aircraft<br />

* Cermet matrix<br />

Geologic Medium<br />

|* Crystalline|<br />

* Sedimentary "<br />

SSite Arrangement<br />

Multiple cavities per site<br />

(other than salt)<br />

* Salt<br />

* Single cavity per site<br />

Rock Melting Repository<br />

Configuration Shaft Excavation Cavity Excavation Hole Surfaces Cavity Surfaces<br />

* Two holes per I* Blind hole boring Full casing | Unlined<br />

cavity * Rotary drilling * Blind hole boring * Partial casing Lined<br />

* Single hole per * Shaft sinking * No casing<br />

cavity<br />

* Big hole drilling<br />

* Combination<br />

Emplacement Methods<br />

Liquid<br />

-------------<br />

I* Pumped Note: Option Classifications<br />

* Gravity flow<br />

Slurry<br />

*Current Reference I<br />

*Primary Alternative<br />

* Pumped * Secondary Alternative<br />

Solid<br />

* Gravity flow<br />

* Controlled lowering<br />

* Free fall<br />

FIGURE 6.1.3. Major Options for Rock Melting Disposal <strong>of</strong> Nuclear <strong>Waste</strong>

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