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sludge |
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sludge 1. any deposit or sediment 2. a surface layer of ice that has a slushy appearance 3. (in sewage disposal) the solid constituents of sewage that precipitate during treatment and are removed for subsequent purification sludge [sləj] (chemical engineering) Residue left after acid treatment of petroleum oils. Any semisolid waste from a chemical process. (civil engineering) (engineering) Mud from a drill hole in boring. Sediment in a steam boiler. A precipitate from petroleum oils or liquid fuels, for example, the insoluble degradation products formed during the operation of an internal combustion engine. An amorphous deposit that has accumulated on the surface of a tube in a heat exchanger or of an evaporating device, but is not bonded to the fouled surface. (geology) A soft or muddy bottom deposit as on tideland or in a stream bed. (oceanography) A dense, soupy accumulation of new sea ice consisting of incoherent floating frazil crystals. Also known as cream ice; sludge ice; slush. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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For example, an exposure index could be calculated based on a) the number of exposures in which levels of volatile chemicals at a residence are [greater than or equal] 10% of the levels over the sludged field and b) the average percent dilution for these exposures. For example, an exposure index could be calculated based on a) the number of exposures in which levels of volatile chemicals at a residence are [greater than or equal] 10% of the levels over the sludged field and b) the average percent dilution for these exposures. |
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