High Level Waste definition

High Level Waste means (a) irradiated nuclear reactor fuel, (b) liquid wastes resulting from the operation of the first cycle solvent extraction system, or its equivalent, and the concentrated wastes from subsequent extraction cycles, or their equivalent, in a facility for reprocessing irradiated reactor fuel, (c) solids into which such liquid wastes have been converted, or (d) any other material containing radioactive nuclides in concentrations or quantities that exceed NRC requirements for classification as Low Level Waste.

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High Level Waste means either irradiated nuclear reactor fuel or the portion of the material generated in the reprocessing of such irradiated fuel that contains virtually all of the fission products and most of the actinides not separated out during reprocessing.

High Level Waste means radioactive waste in which the temperature may rise significantly as a result of its radioactivity, so that this factor has to be taken into account in designing storage or disposal facilities.

Examples of High Level Waste in a sentence

Characterization of Supernate Samples from High Level Waste Tanks 13H, 30H, 37H, 39H, 45F, 46F and 49H; WSRC-TR-2004-00386, Rev.
The authors use recent data on stability of dimethyl mercury, which has been analyzed to be ~ 1 mg/L in some SRS CSTF tanks to provide an order of magnitude estimate of the potential generation rate for methane (e.g., methane generation rates of 9.1E-09 to 2.0E-06 ft3/▇▇▇.▇▇ in the temperature range of 39 to 170 °C in a High Level Waste (HLW) simulant) for comparison purposes.
Gas Generation Rates for 90°C Thermolysis Testing of Radioactive Hanford Site High- Level Waste Samples32 7 Table 2-4.
Solubility testing with simulated High Level Waste tank heel solids has been conducted in order to evaluate two alternative chemical cleaning technologies for the dissolution of sludge residuals remaining in the tanks after the exhaustion of mechanical cleaning and sludge washing efforts.
Alternative Chemical Cleaning Methods for High Level Waste Tanks: Simulant Studies ▇▇▇▇▇ ▇.

More Definitions of High Level Waste

High Level Waste means 1) the highly radioactive material resulting from the reprocessing of spent nuclear fuel, including liquid waste produced directly in reprocessing and any solid material derived from such liquid waste that contains fission products in sufficient concentration; and 2) any other highly radioactive material determined by the federal government as requiring permanent isolation;

High Level Waste means (a) Spent Nuclear Fuel, (b) the highly radioactive material resulting from the reprocessing of Spent Nuclear Fuel, including liquid wastes produced directly in reprocessing and any solid material derived from such liquid waste that contains fission products in sufficient concentrations or quantities that exceed NRC requirements for classifications as Low Level Waste, and (c) other highly radioactive material that the NRC, consistent with existing law, determines by rule requires permanent isolation.

High Level Waste means (i) irradiated nuclear reactor fuel, (ii) liquid wastes resulting from the operation of the first cycle solvent extraction system, or its equivalent, and the concentrated wastes from subsequent extraction cycles, or their equivalent, in a facility for reprocessing irradiated reactor fuel and (iii) solids into which such liquid wastes have been converted.

High Level Waste means that waste resulting from the reprocessing of spent fuel rods or unreprocessed spent fuel rods.

High Level Waste means (a) irradiated nuclear reactor fuel, (b) liquid wastes resulting from the operation of the first cycle solvent extraction system, or its equivalent, and the concentrated wastes from subsequent extraction cycles, or their equivalent, in a facility for reprocessing irradiated reactor fuel, (c) solids into which such liquid wastes have been converted or (d) any other material containing radioactive nuclides in concentrations or quantities that exceed NRC requirements for classification as Low Level Waste.

High Level Waste means irradiated reactor fuel, liquid wastes from reprocessing irradiated reactor fuel and solids into which such liquid wastes have been converted, and other high-level radioactive waste as defined by the U.S. Nuclear Regulatory Commission.

High Level Waste means irradiated reactor fuel, liquid wastes from reprocessing irradiated reactor fuel, and solids into which such liquid wastes have been converted.