Gooey solid mixture of bacteria and virus laden organic matter, toxic metals, synthetic organic chemicals, and solid chemicals removed from wastewater at a sewage treatment plant.
In discussions of environmental controls, the mud-like residue that results from the cleaning process of scrubbers or certain other devices, designed to prevent solid particulates from entering the environment. Also used to refer to organic waste. Some types of sludge can be used to produce fuel.
Sludge is the muddy waste that is produced during processes to remove sulfur from coal.
Residue from the production of paper; consists of inert materials, mainly small fiber debris, filler and other inert materials. It used to be sent to landfill. Nowadays used as “new” raw material and incinerated with energy recovery.
Gooey mixture of toxic chemicals, infectious agents, and settled solids removed from wastewater at a sewage treatment plant.
Solid material separated from liquid pulp mill effluent during treatment.
Sludge is the inorganic suspended solids (see separate entry) which settle out from sewage.
The semi-fluid solid matter collected at the bottom of a system tank or watercourse, as a result of the sedimentation or settling of suspended solids or precipitates.
The untreated byproduct of wastewater treatment consisting of primary and secondary solids.
Deposits in fuel tanks and caused by the presence of wax, sand, scale, asphaltenes, tars, water, etc. The "sludge" formed in a #6 fuel oil storage tank is mostly composed of heavy hydrocarbons. This type of sludge by breaking the sludge into small particles and re-suspending them in the fuel for more efficient combustion. The "sludge" formed in diesel storage tanks is a combination of water with fungus and bacteria, which grow on the unevenly mixed water/fuel interface. Adding Treatment to stored fuel promotes a clean separation of water and fuel, reducing the substrate upon which bacteria and fungus can grow. Since the bacteria and fungus bind to the separated water, they can be removed by draining the water from the storage tank. If draining the storage tank is impossible, will emulsify the water into tiny droplets and break the sludge into such small particles that they will no longer clog filters and will efficiently burn.
Solid waste created during a manufacturing process.
The settleable solids separated from liquids during processing or the deposits of foreign materials on the bottoms of streams or other bodies of water.
semi-solid matter resulting from wastewater treatment
the accumulated solids separated during primary and secondary treatment. It is disposed of through incineration or land application.
the layer of solids that settle from a solution, including suspended silt and soil particles and precipitates formed by chemical processes.
A mixture of solid waste material and water. Sludges result from the concentration of contaminants in water and wastewater treatment processes. Typical wastewater sludges contain from 0.5 to 10 percent solid matter. Typical water treatment sludges contain 8 to 10 percent solids.
precipitated solid matter produced by water and sewage treatment processes Minnehaha: Point-Source Pollution
Organic matter and waste product build up at the bottom of a pond. Water treatment and Sludge vacuum cleaners
The solid, semi-solid or liquid residue removed during the treatment of wastewater. Sludge includes septage removed from septic tanks.
The solids in the basin which settle. It is composed of mostly bacteria and unconsumed organic matter.
the precipitate produced by sewage treatment
A semi-solid residue, containing microorganisms and their products, from any water treatment process.
Solids remaining in the wastewater treatment facility.
Solid, semi-solid or liquid waste from municipal, commercial or industrial waste-treatment facilities, waste-water treatment plants and air pollution control facilities. In discussions of environmental controls, the mud-like residue that results from the cleaning process of scrubbers or certain other devices designed to prevent solid particles from entering the environment.
Any various more or less mudlike deposits or mixtures eg sediment deposited during the treatment of sewage.
The solids that settle to the bottom of a septic tank, that decomposes partially through naturally occurring bacteria.
The gathered settled solids accumulated from sewage or industrial refuse, treated or raw, in tanks or basins, and comprising more or less water to build a semi-liquid accumulation.
The accumulated solids in the bottom of a septic tank. Sludge must be pumped out periodically (every three years for a typical family of four with a 1,200-gallon tank).
A non-pumpable mixture of solids and liquids. Sludge is typically produced by waste treatment plants, water supply treatment plants, or air pollution control facilities.
Mineral, mud, and slurry too thick to flow. A soft mud, slush, or mire; for example the solid product of a filtration process before drying (filter cake).
solid material that isn’t broken down by bacterial digestion which settles to the bottom of septic tanks or wastewater treatment plants; it must be pumped out and disposed of in landfills, application to land, or by incineration.
A mixture of solids and water produced during the treatment of waste water or sewage. This will frequently have to be removed from the treatment system by de-sludging.
materials that have settled to the bottom of a waste treatment device.
The solids that remain after wastewater treatment. This material is separated from the cleaned water, treated and composted into fertilizer. Another word for sludge is biosolids.
Settled solid matter produced by water and sewage treatment processes.
Accumulated and concentrated solids generated within a treatment process that have not undergone a stabilization process.
The solid waste material which settles out in the wastewater treatment process.
Semi-solid material that settles out of wastewater in septic systems and sewage treatment plants
A semi-solid residue from any of a number of air or water treatment processes; can be a hazardous waste.
Compare? The residue (solids and some water) produced as a result of raw or wastewater treatment.
Substances that get settled at the bottom of the latex tank comprising the magnesium ammonium phosphate, sand, dirt and other heavier matter in the latex. A sludge trap is provided at the outlet of the latex tank to rid the latex outflow of the sludge.
Semisolid mixture of organic and inorganic materials that settles out of wastewater at a sewage treatment plant.
The waste material left over after pulping and deinking. Although some sludge is produced in the virgin papermaking process, far more is produced in the deinking (recycling) process. Recycling breaks recovered paper down into fibers, which are sent to the paper machine for new production, and other materials, which drop into the sludge. These "other materials" include clay coatings, fillers from the previous paper, paper clips and staples, fibers too short to be made into paper, ink if it wasn't skimmed off in the deinking process, and any "junk" that crept into the wastepaper bales.
solid matter that settles to the bottom of sedimentation tanks in a sewage treatment plant and must be disposed of by digestion or other methods or recycled to the land.
The heavy, slimy deposit found at the bottom of a septic tank
A solid, semisolid, or liquid waste generated from a wastewater treatment plant, less the treated effluent.
A semisolid residue from air or water treatment processes.
Solid matter that is removed during wastewater or water treatment. It can be processed into a material that can be beneficially used (biosolids).
A product of the treatment process as particles in waste are converted to solids.
Boilers - the precipitated solids which result from increased concentration exceeding solubility. Fuel oils - complex hydrocarbons resulting from polymerization after refining or naturally occurring in crude oil.
A build up of sediment that can be found in the basin or pipework of a cooling tower system.
Broken down organic debris accumulated on the pond floor. (i.e., fish waste, dead lily leaves and tree foliage)
The solids which settle out of wastewater when sewage is treated
Solid or semisolid material resulting from potable or industrial water supply treatment or sanitary or industrial wastewater treatment.
The heavy sediment in a sewage or septic tank.
In wastewater treatment, the semisolid part of sewage and bacterial mass that has been acted upon by bacteria and settled and/or been removed from the treated wastewater.
Remnants of the digestion process that settle out on the bottom of settling tanks and reaction vessels; must be removed periodically from treatment systems. Sludge is a rich organic source of nutrients, composed of live and dead bacteria, entrapped solids, and residual organic matter from the sewage. Sludge is often used as soil conditioner in large wastewater operations, though the presence of live bacterial colonies requires there be a minimum of several years waiting time between sludge application and the growth of vegetable matter for human consumption.
heavier solids that collect on the bottom of the septic tank.
Solid residue of the wastewater purification process, a product of screening, sedimentation, filtering, pressing, bacterial digestion, chemical precipitation and oxidation, primary sludge is produced by sedimentation process and secondary sludge is the product of microbial digestion.
Solid or semi-solid residue resulting from waste water treatment or industrial processes.
1) any solid, semi-solid, or liquid wastes generated from a municipal, commercial, or industrial wastewater treatment plant or air pollution control facility. a 2) the accumulated solids separated from liquids (such as water or wastewater) during processing, or deposits on bottoms of streams or other bodies of water. b c 3) the precipitate resulting from chemical treatment, coagulation, or sedimentation of water or wastewater. b c
Waste created during the biological process of treating effluent from a manufacturing or municipal wastewater process.
a deposit at the bottom of a body of water; sediment deposited during treatment of sewage; the sediment in the bottom of a vessel or tank
Waste from battery paste during pasting. Exhausted positive mass during the aging process. See Sludging.
the wet solids that can be settled from an untreated liquid effluent (primary sludge); or from aerobically treated effluent (secondary sludge)
A dense, slushy, liquid-to-semifluid product that accumulates as an end result of an industrial or technological process designed to purify a substance. Industrial sludges are produced from the processing of energy-related raw materials, chemical products, water, mined ores, sewerage, and other natural and man-made products. Sludges can also form from natural processes, such as the run off produced by rain fall, and accumulate on the bottom of bogs, streams, lakes, and tidelands.
the gooey, muddy solids that remain after wastewater is treated
The settleable solids separated from water during processing.
Term for the waste material found in sump pump pits, septic systems and gutters.
A semifluid mass of sediment resulting from treatment of water, sewage and/or other wastes.
The solids which are separated from water during processing.
The HarperCollins Dictionary of Environmental Science defines sludge as a "viscous, semisolid mixture of bacteria- and virus-laden organic matter, toxic metals, synthetic organic chemicals, and settled solids removed from domestic and industrial waste water at a sewage treatment plant."''' For further peer reviewed research - www.sludgefacts.org