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Britannica Dictionary definition of SLUDGE. [noncount] 1. : thick, soft, wet mud. 2. : a soft, thick material that is produced in various industrial processes (such as in the treatment of sewage) 3. : a thick material that can form in the oil in an engine and cause engine problems.
sludge in American English. (slʌdʒ) noun. 1. mud, mire, or ooze; slush. 2. a deposit of ooze at the bottom of a body of water. 3. any of various more or less mudlike deposits or mixtures.
Jun 16, 2024 · Wastewater treatment - Sludge, Disposal, Treatment: The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes. This residue is commonly classified as primary and secondary sludge. Primary sludge is generated from chemical precipitation, sedimentation, and other primary processes, whereas secondary sludge is the activated waste ...
Toxic Sludge Could Spill Again, Hungary Government Warns AP 2010. Red sludge is a byproduct of the refining of bauxite into alumina, the basic material for manufacturing aluminum. Toxic Sludge Could Spill Again, Hungary Government Warns AP 2010. The sludge is so corrosive that it has burned people as it seeped through their clothing.
May 17, 2012 · The reason for this confusion is that the EPA definition of a sludge differs from the common English definition: EPA definition of sludge from 40 CFR 260.10: Sludge means any solid, semi-solid, or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control ...
Jun 23, 2023 · Definition and Composition. Sludge is a thick, semi-solid waste that comes from industrial processes. It combines solids and liquids. Here are the main types: General Sludge: Semi-solid waste from industrial operations, containing both solids and liquids. Sewage Sludge: Residual material from sewage treatment, mainly from primary and secondary ...
Jun 22, 2020 · Sludge water concentration. A key part of sludge treatment is the reduction of its volume by reducing the water content. The water in sludge exists in various forms: Free or unbound water is the fraction not associated with the solids or flocs – assemblages of particles held together by biological and organic polymeric materials. This water ...
