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wall of the cyclone by centrifugal force, and move in spiral form along the wall down to the bottom <br /> opening. <br /> Hydrometallurgical Separation—a process in which aqueous or organic solutions are used to <br /> chemically extract metals from a solid matrix. <br /> Hydrotreating—a catalytic process used in oil refining to remove impurities such as oxygen, sulfur, <br /> nitrogen, or unsaturated hydrocarbons. <br /> Igniitabilirty Characteristic—exhibiting the hazardous characteristic of ignitability as defined in 40 CFR <br /> 261.21. <br /> a Immobilization—the reduction in the ability of contaminants to move through or escape from S/S- <br /> treated waste. <br /> Immobilization Treatment Options— immobilization treatment options reduce contaminant mobilfty by <br /> g containment or by S/S. <br /> a Implementability—The feasibility of implementing a technology from a technical and administrative <br /> standpoint must be determined, and the availability of various goods and services as well as monitoring <br /> requirements should be considered. <br /> Inactive Biomass— non-living plants, animals, or microorganisms. <br /> Incineration—a treatment technology involving destruction of waste by controlled burning at high <br /> temperatures. <br /> Indirect Capital Costs—include costs for engineering expenses, contingencies, and project <br /> management <br /> Information Repository—file of data and documents located near a Superfund site. <br /> Inhibitor—a material that stops or slows a chemical reaction from occurring. Used in this document to <br /> apply to stopping or slowing the setting of S/S-treated material. <br /> Innovative Treatment Technologies—alternative treatment technologies (.e., those'altemative" to land <br /> disposal) for which use at Superfund type sites is inhibited by lack of data on cost and performance. <br /> Interference (S/S) —an undesirable change in the setting of the S/S material resulting in lower strength, <br /> poorer leach resistance, or evolution of noxious or hazardous gases, or other degradation of the S/S- <br /> treated material. <br /> at Interstitial—see pore water. <br /> Ion—an atom or molecule which by loss or gain of one or more electrons has acquired a net electric <br /> charge. <br /> Ion Exchange—a chemical reaction in which ions associated with charged sites in a solid matrix are <br /> exchanged, mole for mole, with ions of like charge in solution. <br /> Ion Partitioning—ions partition from the water phase to a solid mineral surface by physical adsorption, <br /> chemical adsorption, and incorporation into a mineral phase. <br /> K-7 <br /> i <br />