Sludge definition

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 facility exclusive of the treated effluent from a wastewater treatment plant.
Sludge means the solids, residues, and precipitates separated from, or created in, wastewater by the unit processes of a treatment system.
Sludge means accumulated solid material containing large amounts of entrained water, which has separated from wastewater during processing;

Examples of Sludge in a sentence

  • Preliminary design for improvements to the GBT pumping systems, included replacement of thicken sludge pumps for the GBT system, a strainer and wash water pumps for each GBT unit was completed under Letter Agreement 298 entitled “Springtree WWTP Thickened Sludge Pumps Replacement” (March 2018, Xxxxx).

  • An employee who possesses a valid appropriate commercial drivers license and who is permanently assigned as the 204 Sludge Tanker Driver shall, for the purposes of this Article, be paid the D rate, plus $0.50 per hour.

  • The following are the key processes at WRF No. 2: • Intermediate Pump Station (for lifting plant influent to headworks) • Headworks • Aerated Grit Basins (2) • Primary Clarifiers (2) • Equalization (EQ) Ponds (2) • Activated Sludge Basins (2) • Secondary Clarifiers (3) • Tertiary Filtration • Chlorine Contact Tanks To optimize operation and minimize odors, five desired improvements have recently been identified.

  • Sludge may in turn be applied to agricultural land (DEFRA, 2012), leading to direct terrestrial implications, in addition to potential for runoff into watercourses.


More Definitions of Sludge

Sludge means any solid, semisolid or liquid waste generated from a municipal, commercial, institutional or industrial wastewater treatment plant, water supply treatment plant or air pollution control facility, or any other waste having similar characteristics and effects.
Sludge means any solid, semisolid or liquid wastes with similar characteristics and effects
Sludge means any solid, semisolid, or liquid waste
Sludge means the accumulated semiliquid suspension of settled solids deposited from wastewaters or other fluids in tanks or basins. It does not in- clude solids or dissolved material in domestic sewage or other significant pollutants in water resources, such as silt, dissolved materials in irrigation return flows or other common water pollutants.
Sludge means sludge produced by a treatment plant that processes munic- ipal or industrial waste waters.
Sludge means the accumulated semi-liquid suspension, settled solids, or dried residue of these solids that is deposited from (a) liquid waste in a municipal or industrial wastewater treatment plant, (b) surface or groundwaters treated in a water treatment plant, whether or not these solids have undergone treatment. Septage is included herein as sludge.
Sludge means the accumulation of solids which have settled from wastewater. As initially accumulated, and prior to treatment, it is known as "raw sludge".