Energy_utilization_3

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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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 –
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This note was uploaded on 05/13/2011 for the course GEO 101 taught by Professor Hanson during the Spring '08 term at SUNY Stony Brook.

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Energy_utilization_3 - Chernobyl (1986) Uranium Mining and...

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