Grease, light plastics and other floatable material that is skimmed from the surfaces of primary and secondary clarifiers.
a film of impurities or vegetation that can form on the surface of a liquid
Oil, grease, soap, and other materials that float to the top of the household sewage or waste water in a septic tank. Typically items in the scum layer are lighter than water and form a barrier to prevent odours.
Oils and greases and other material that will float forming a deposit on the top of the sewage.
the floatable materials that form an accumulating layer on the liquid surface inside a primary waste water treatment tank; includes oils, grease and soaps.
Extraneous matter or impurities risen to or formed on the surface of a liquid often as a foul filmy covering.
Floatable materials found on the surface of primary and secondary settling tanks consisting of food wastes, grease, fats, paper, foam, and similar matter.
Floatable material in wastewater made up of mainly fats, cooking oil and grease which are skimmed off during the treatment process.
A layer of wastewater particles floating on the liquid surface in a septic tank.
A mass of light solids, such as hair, grease, oils, and soaps floating on the surface of the wastewater in a septic tank
Any material that floats to the surface of wastewater during treatment, usually removed in sedimentation tanks.
A film of impurities that rises to or is formed on the surface of a liquid or is formed upon the surface of a solid object (such as the structure of a cooling tower).
(a) A floating layer of unmelted material on the molten glass surface. (b) The light colored marks which appear along the edges and as finger-prints on unglazed ware and bisque, caused by soluble salts in the clay. Adding barium carbonate to the clay body will prevent scumming.
The extraneous or foreign matter which rises to the surface of the water and forms a layer or film there. It can also be a residue deposited on the tile or walls of the pool or spa. Sources of scum are soap, oil, deodorant, hair spray, sun tan lotion and various others.
Waste foam that naturally rises and is constantly skimmed away by the sugarmaker when the sap is boiled.
1) the layer or film of extraneous or foreign matter that rises to the surface of a liquid and is formed there. 2) a residue deposited on a container or channel at the water surface. 3) a mass of solid matter that floats on the surface. b
The foreign matter which floats to the surface of the water and forms a layer or a film. It can also refer to a residue deposited on the tiles or walls of the pool.
grease, fats, and material that floats to the top of the septic tank