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Macroencapsulation-a process of encasing a mass of solid or S/S-treated waste in a protective layer, <br /> such as bitumen (thermoplastic). <br /> Magnetic Separation-magnetic separation Is based on the differences in magnetic properties of the <br /> various minerals, especially for separating ferrous from nonferrous materials. <br /> Matte-a mixture of metal sulfides produced by pyrometallurgical processing of sulfide ores. <br /> Mercury Cell Chloralkali Process Sludge (K106)-a mercury-bearing sludge resulting from treatment <br /> of effluents from electrolytic processing to generate chlorine gas and sodium hydroxide. <br /> Metals in Polymer Matrices-metals incorporated In polymer matrices to act as fillers, improve <br /> mechanical properties, or provide colors. <br /> Microencapsulation-containment of the contaminants on a microscopic or molecular scale. <br /> Microstructure-the structure of an object or material as revealed by a microscope at a magnification <br /> greater than 10 times. <br /> Mixer-machine employed for blending the constituents of grout, mortar, or other matures. <br /> Modified Clays-days (such as bentonite) that have been modified by ion exchange with selected <br /> organic compounds that have a positive charged site (often a quaternary amine), hence rendering the <br /> clay/organo complex hydrophobic. <br /> Monitoring - collection of data on contaminants in different environmental media (air, surface or <br /> groundwater, sediments, soils) to determine extent and impact or effectiveness of a cleanup action. <br /> Monofilled Waste Extraction Procedure (MWEP)-a leaching test. <br /> Monolith-a free standing solid consisting of one piece. <br /> Monomer-a simple molecule which is capable of combining with a number of like or unlike molecules <br /> to form a polymer. <br /> Montmorillonite-a group of clay minerals characterized by a weakly bonded sheet-like internal <br /> molecular structure; consisting of extremely finely divided hydrous aluminum or magnesium silicates that <br /> swell on wetting, shrink on drying, and have ion exchange capacity. <br /> Multimedia -air, land, and water. <br /> Multiple Extraction Procedure (FMEP) -a leaching test in which the sample is repeatedly leached with <br /> fresh batches of leachant. <br /> National Oil and Hazardous Substances.Contingency Plan (NCP)-provides the organizational <br /> structure and procedures for preparing and responding to discharges of oil and releases of hazardous <br /> substances, pollutants, and contaminants (40 CFR 300.1). <br /> National Priorities List (NPL) - list of CERCLA sites (40 CFR Part 300, Appendix B). <br /> Nonaqueous-phase Liquids (NAPL.$) -organic fluids that will partition to a separate organic phase or <br /> to the vapor, water, or sorbed phases depending on the volume of organic present and the site and <br /> contaminant properties. <br /> K-9 <br />