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.
activated sludge process
removes organic matter from sewage by saturating it with air and microbial organisms.
activation ...
activated sludge process A biological wastewater treatment process in which a a mixture of wastewater and biomass is agitated and aerated for aerobic treatment.
Contact stabilisation
an activated sludge process that produces less surplus sludge; separated sludge is aerated vigorously before it contacts and stabilises raw sewage ...
The biological portion of wastewater treatment which uses the activated sludge process to further clean wastewater after primary treatment.
Sedimentation
The settling of solids in a body of water using gravity.
It is accomplished by bringing together waste, bacteria, and oxygen in trickling filters or in the activated sludge process.
treatment: Second step in most waste treatment systems, in which bacteria break down the organic parts of sewage wastes; usually accomplished by bringing the sewage and bacteria together in trickling filters or in the activated sludge process.
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 second step in most publicly owned waste treatment systems in which bacteria consume the organic parts of the waste. It is accomplished by bringing together waste, bacteria, and oxygen in trickling filters or in the activated sludge process.
 See also: Oxygen, Water, Liquid, Activated sludge, Organic
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