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  2. Spent nuclear fuel - Wikipedia

    en.wikipedia.org/wiki/Spent_nuclear_fuel

    Spent fuel that has been removed from a reactor is ordinarily stored in a water-filled spent fuel pool for a year or more (in some sites 10 to 20 years) in order to cool it and provide shielding from its radioactivity. Practical spent fuel pool designs generally do not rely on passive cooling but rather require that the water be actively pumped ...

  3. Spent fuel pool - Wikipedia

    en.wikipedia.org/wiki/Spent_fuel_pool

    Pumps circulate water from the spent fuel pool to heat exchangers, then back to the spent fuel pool. The water temperature in normal operating conditions is held below 50 °C (120 °F). [ 8 ] Radiolysis , the dissociation of molecules by radiation, is of particular concern in wet storage, as water may be split by residual radiation and hydrogen ...

  4. Radioactive waste - Wikipedia

    en.wikipedia.org/wiki/Radioactive_waste

    The back-end of the nuclear fuel cycle, mostly spent fuel rods, contains fission products that emit beta and gamma radiation, and actinides that emit alpha particles, such as uranium-234 (half-life 245 thousand years), neptunium-237 (2.144 million years), plutonium-238 (87.7 years) and americium-241 (432 years), and even sometimes some neutron ...

  5. Nuclear fuel - Wikipedia

    en.wikipedia.org/wiki/Nuclear_fuel

    The radiation hazard from spent nuclear fuel declines as its radioactive components decay, but remains high for many years. For example 10 years after removal from a reactor, the surface dose rate for a typical spent fuel assembly still exceeds 10,000 rem/hour, resulting in a fatal dose in just minutes. [20]

  6. Decay heat - Wikipedia

    en.wikipedia.org/wiki/Decay_heat

    Because radioisotopes of all half-life lengths are present in nuclear waste, enough decay heat continues to be produced in spent fuel rods to require them to spend a minimum of one year, and more typically 10 to 20 years, in a spent fuel pool of water before being further processed. However, the heat produced during this time is still only a ...

  7. Radioactive water in Pilgrim Nuclear Power Station could ...

    www.aol.com/radioactive-water-pilgrim-nuclear...

    Some of the Pilgrim Nuclear Power Plant wastewater has evaporated. The 1.1 million gallons of wastewater is now down to 950,000 due to evaporation.

  8. High-level radioactive waste management - Wikipedia

    en.wikipedia.org/wiki/High-level_radioactive...

    The Nuclear Waste Policy Act of 1982 established a timetable and procedure for constructing a permanent, underground repository for high-level radioactive waste by the mid-1990s, and provided for some temporary storage of waste, including spent fuel from 104 civilian nuclear reactors that produce about 19.4% of electricity there. [38]

  9. New York governor blocks discharge of radioactive water into ...

    www.aol.com/news/york-governor-blocks-discharge...

    A measure to block discharges of radioactive water into the Hudson River as part of the Indian Point nuclear plant's decommissioning was signed into law Friday by New York Gov. Kathy Hochul. The ...