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Solution-a single, homogeneous phase of liquid, solid, or gas in which a solute is uniformly <br /> distributed. <br /> Sorption-a general term used to encompass the processes of adsorption, absorption, desorption, ion <br /> exchange, ion exclusion, ion retardation, chemisorption, and dialysis. ; <br /> t <br /> Spiral Concentrator-another popular type of gravity separator, this device consists of a helical <br /> channel that winds down a central pole. Feed Is introduced at the top of the spiral as a 10 to 40% <br /> solids slurry. As the slung flows down the spiral, a velocity gradient is created along the thickness of the <br /> water film. The water closest to the channel surface flows very slowly due to friction, whereas the <br /> velocity increases toward the top of the water film. The smallest particles submerge in the slower <br /> moving layer of the film. The larger particles and the bulk of the fluid are faster moving and are subject <br /> to centrifugal force along the curved path, which causes them to move outward. r <br /> S/S Technologies-inhibit mobility or interaction in the environment through chemical reactions and/or <br /> physical interactions to retain or stabilize the contaminants. <br /> S/S Treated Waste-a waste liquid, solution, slurry, sludge, or powder that has been converted to a <br /> stable solid (granular or monolithic) by an S/S treatment process. <br /> Y <br /> Stability-the stabilization and solidification provided by an S/S process. <br /> Stabilization -a process by which a waste is converted to a more chemically stable form. The term <br /> may include solidification, but also includes chemical changes to reduce contaminant mobility. <br /> Storage-the holding of hazardous waste for a temporary period, at the end of which the hazardous <br /> waste is treated, disposed of, or stored elsewhere (40 CFR 260.10). <br /> Superfund - common name used for Comprehensive Environmental Response, Compensation, and r <br /> Liability Act (CERCLA), as amended by the Superfund Authorization Act (SARA) and also used to refer to <br /> sites listed on the National Priorities list (NPL) and the Trust Fund established by the Act to fund <br /> response to releases of hazardous substances and cleanup of hazardous waste sites. <br /> R <br /> Surface Water- bodies of water that are directly accessible at the ground surface, such as rivers, lakes, <br /> streams, and ponds. <br /> Surfactant-surface-active agent, a soluble compound that reduces the surface tension of liquids, or <br /> reduces interfacial tension between two liquids or a liquid and a solid. <br /> Thermoplastic Resin-an organic polymer with a linear macromolecular structure that will repeatedly <br /> soften when heated and harden when cooled; for example styrenes, acrylics, cellulosics, polyethylenes, <br /> vinyls, nyions, and fluorocarbons. <br /> Thermosetting Resin-an organic polymer that solidifies when first heated under pressure, and which <br /> cannot be remelted or remolded without destroying its original characteristics; for example epoxies, <br /> melamines, phenolics, and ureas. <br /> Tortuosity-the ratio of the length of a sinuous pathway between two points and the length of a straight <br /> line between the points. <br /> Total Organic Carbon (TOC) -a chemical analysis. <br /> Total Threshold Limit Concentration (TTLC) -limit applied to Cal WET leaching results (Ca 22 <br /> Calffomia Code of Regulations 66699). <br /> K-14 <br />