Energy_utilization_3 - Chernobyl(1986 Uranium Mining and...

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Chernobyl (1986)
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Uranium Mining and Processing Moab, UT Uranium mine waste pond (now dry)
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Nuclear Fuel Cycle (US) Yucca Mtn. (proposed permanent storage) X U-235 0.7% Natural Enriched to 3% Temporary storage Storage of nuclear waste is the main challenge
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Low-level Radioactive Waste Disposal 90% of all Rad-waste Medical isotopes Contaminated clothing, materials Cooling water, steam Tailings from mining operations Little heat, minimal risk Some liquids and steam released to environment (dilute and disperse) Low-level waste storage sites (500 year lifetime)
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Low-level Radioactive Waste Disposal/Storage Sites
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High-level Radioactive Waste Consists of: Spent nuclear fuel rods (~40,000 tons) By-products of processing fuel rods By-products of nuclear weapons construction (minor amount) Important characteristics: High-level of radioactivity for more than 10,000 years Heat associated with decay Some by-products are toxic (plutonium) Requirements for safe disposal: Isolate waste for 10 half-lives of longest-lived radioactive isotope Plutonium-239 Half-life – 24,000 yrs. Must isolate for 240,000 years!
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  • Spring '08
  • HANSON
  • Energy development, radioactive waste, Yucca Mountain, high level waste, Yucca Mountain nuclear waste repository

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