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--now- <br /> Jig -one of the oldest gravity separation devices, this device achieves particle stratification by <br /> introducing the feed particles into a pulsating water column. <br /> Kaolin-a variety of stay containing a high percentage of kaolinite. <br /> Kaolinite-a common day mineral having the general formula AUS605)(01-14). <br /> Kiln-a heated and usually rotating enclosure used for drying, burning, or firing materials such as ore or <br /> ceramics. In this document kiln typically refers to a kiln used for production of lime or cement. <br /> Kiln Dust-fine particulate by-product of cement production or lime calcination. <br /> Landfill-a subgrade waste-holding or disposal facility. <br /> Leachability-a measure of release of constituents from a waste or S/S waste. Leachability is one <br /> measure of the mobility of a constituent. High leachability means high constituent mobility. <br /> Leachant-liquid that comes in contact with a material either from natural exposure (e.g., water in a <br /> disposal site) or in a planned test of leachability. The typically used leachants are pure distilled water or <br /> water containing salts, acids, or both. <br /> Leachate-any liquid, including any suspended components in the liquid, that has soaked, percolated a <br /> through, or drained from material during leaching. <br /> Leaching -the release of constituents from a solid through contact with the leachant. The leaching <br /> may occur by either natural mechanisms at waste sites or as part of a laboratory leaching test <br /> Leaching Agent-leachant. <br /> Leaching Rate-the amount of a constituent of a specimen or solid waste form which is leached during <br /> a unit of time (usually normalized by sample volume, area, or weight). <br /> Leaching Resistance-the inverse of leachability. High leach resistance means low contaminant <br /> mobility. <br /> Leaching Test-exposure of a representative sample of contaminated waste, S/S treated waste, or <br /> other material to a leachant under controlled conditions to measure the release of constituents. <br /> Lime- specifically, calcium oxide (CaO); also, loosely, a general term for the various chemical and <br /> physical forms of quicklime, hydrated lime, and hydraulic hydrated lime. <br /> Listed Waste-see RCRA listed waste. <br /> Long-Residence-Time Melters-these waste vitrification melters use a molten reservoir that allows a <br /> relatively long residence time for the waste to mix and blend with previously fed material and allow <br /> greater time average variability in the feed stream for longer times without adversely influencing the <br /> uniformity of the discharged material. <br /> Long-Term Effectiveness- refers to the ability of an alternative to maintain reliable protection of human <br /> health and the environment over time once the cleanup levels have been met. <br /> Long-Term Stability-the ability of S/S wastes to maintain their properties over time while exposed to <br /> the environment <br /> K-8 <br /> t <br />