Quantcast Waste Disposal and Storage - hdbk1113cn10130

 

Click here to make tpub.com your Home Page

Page Title: Waste Disposal and Storage
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Uses - hdbk1113cn10129
Up
Radiological Safety Training for Uranium Facilities - index
Next
Decontamination and Decommissioning of Uranium Facilities - hdbk1113cn10131


DOE-HDBK-1113-98
Radiological Safety Traning for Uranium Facilities
Module 102 - The Nuclear Fuel Cycle
Uranium was used in plutonium production reactors. Uranium fuel and targets were
coated with aluminum or zirconium metal and placed in the reactor. As they were
irradiated with neutrons, a small fraction of the uranium was converted to plutonium.
The irradiated fuel was then removed from the reactor, but the plutonium and uranium
had to be separated from the fission products created during irradiation.
PUREX, a chemical process for plutonium and uranium extraction from irradiated
nuclear fuel, was developed to accomplish this separation. This reprocessing was
accomplished as follows:
a.
Excess metal was mechanically removed to expose the fuel material.
b.
The fuel was leached with acid to remove it from the claddi ng.
c.
The uranium and other elements were separated by solvent extraction (chemical
separation).
d.
The uranium was converted back to UF6 for enrichment.
7.
Waste Dispo sal and Stora ge
Due to the remaining radioactive properties, the nuclear fuel cycle byproducts must be
controlled and/or disposed. T hese byproducts can be divided into two cate gories--low-
level waste (LLW) and high-level waste (HLW).
LLW
a.
The RCM glossary defines low-level waste (LLW) as "Waste that contains
radioactivity and is not classified as high-level waste, transuranic waste, spent
nuclear fuel, or byproduct material as defined in Section 11e(2) of the Atomic
Energy Act, as amended. Test specimens of fissionable material irradiated only
for research and development and not for production of power or plutonium may
16


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.