Sludge Digester
A tank in which complex organic substances like sewage sludges are biologically dredged. Dredging produces reactions that release energy from the sewage.
Activated Sludge
Product that results when primary effluent is mixed with bacteria-laden sludge and then agitated and aerated to promote biological treatment, speeding the breakdown of organic matter in raw sewage undergoing secondary waste treatment.
Activated Sludge Process: A sewage treatment process by which bacteria that feed on organic wastes are continuously circulated and put in contact with organic waste in the presence of oxygen to increase the rate of decomposition.
Sludge
the wet solids that can be settled from an untreated liquid effluent (primary sludge); or from aerobically treated effluent (secondary sludge)
Slurry
mixture of urine, faeces and wash water from cattle or pig rearing ...
Sludge
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.
Storm Drain ...
Sludge: A semi-solid residue from any of a number of air or water treatment processes.
Sludge A semi-solid residue, containing microorganisms and their products, from any water treatment process.
Softening The removal of calcium and magnesium from water to reduce hardness.
Sludge: heavy, slimy residue remaining from the treatment of municipal and industrial water and wastewater. Digested sewage sludge remains after decomposition under controlled temperature, pH, and mixing in a digester tank.
sludge digester A reactor with extended detention and mixing during which complex organic substances like sewage sludge are biologically degraded.
Sludge: A solid residue from air or water treatment processes. Can be a hazardous waste.
Smoke: The airborne solid and liquid particles and gases that evolve when material undergoes pyrolysis or combustion.
sludge digestion
the process by which organic or volatile matter in sludge is gasified, liquefied, mineralized, or converted into more stable organic matter through the activities of either anaerobic or aerobic organisms.
sludge disposal ...
sludge (sluj). The settleable solids separated from water
during processing.
slurry (SLUR-e). A watery mixture or suspension of ...
Sludge: Semi-solid residues from industrial or water treatment processes that may be contaminated with hazardous materials.
Sludge 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.
Here sludge from a wastewater treatment facility is being applied to a forest site. This will increase the organic matter on the site.
Sewage sludge directive
Shared Environmental Information System for Europe
Silesia ...
Municipal Sludge- Semi-liquid residue remaining from the treatment of municipal water and wastewater.
Municipal Solid Waste- Common garbage or trash generated by industries, businesses, institutions, and homes.
Industrial Sludge- Semi-liquid residue or slurry remaining from treatment of industrial water and wastewater.
Activated sludge
A term used to describe sludge that contains microorganisms that break down organic contaminants (e.g., benzene) in liquid waste streams to simpler substances such as water and carbon dioxide.
Areas where sewage sludge is dumped and dried.
Evapotranspiration
The loss of water from the soil both by evaporation and by transpiration from the plants growing in the soil.
Methane is released naturally into the air from anaerobic environments such as marshes, swamps, and rice fields, and from symbiotic microbes in the guts of ruminant animals (such as cattle, sheep, and camels), and sewage sludge.
As particles settle to the bottom of the basin a layer of sludge is formed on the floor of the tank. This layer of sludge must be removed and treated.
Organic Food: (From the USDA) Food produced without: antibiotics; growth hormones; most conventional pesticides; petroleum- based fertilizers or sewage sludge-based fertilizers; bioengineering; or ionizing radiation.
Pollution sources include smelter fumes and dust, some incineration products, fertilizer, municipal wastewater and sludge discharges. It is also an industrial byproduct of the manufacturing of zinc, copper and lead.
Evaporation Ponds: Areas where sewage sludge is dumped and dried.
Evapotranspiration: The loss of water from the soil both by evaporation and by transpiration from the plants growing in the soil.
Incineration - A treatment technology involving destruction of waste by controlled burning at high temperatures, e.g., burning sludge to remove the water and reduce the remaiing residues to a safe, ...
Solids and dead bacteria settle to the bottom as sludge while the liquid portion flows into the ground through drains.
SOLID WASTE Nonsoluble, discarded solid materials, including sewage sludge, municipal garbage, industrial wastes, agricultural refuse, demolition wastes and mining residues.
Nutrient rich organic materials derived from wastewater solids (sewage sludge) that have been stabilised through processing
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Industrial waste
Unwanted materials from an industrial operation; may be liquid, sludge, solid, or hazardous waste.(1) ...
Secondary treatment. Generally, a level of treatment that produces 85 percent removal efficiencies for biological oxygen demand and suspended solids. Usually carried out through the use of trickling filters or by the activated sludge process.
The 3M company in the USA, over a 10-year period, eliminated 10 000 tonnes of water pollutants, 90 000 tonnes of air pollutants and 140 000 tonnes of sludge, saving over $192 million at the same time.
Solid wastes also include sewage sludge, agricultural refuse, demolition wastes, and mining residues. Technically, solid waste also refers to liquids and gases in containers.
 See also: Water, Waste, Treatment, Air, Environment
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