See Also: activated sludge method(medicine)
activated sludge(medicine)
activated sludge process(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
sludge(dictionary)
sludge(1)(dictionary)
sludge(medicine)
sludge(2)(dictionary)
Bile sludge(health)
Biliary sludge(health)

activated sludge method (medicine)


activated sludge method


A method of sewage disposal in which the sewage is treated with 15% bacterially active, liquid sludge, which is produced by repeated vigorous aeration of fresh sewage to form floccules or sediment; when this flocculation process is complete, the resulting activated sludge contains large numbers of bacteria, together with yeasts, molds, and protozoa, which actively effect the oxidation of organic compounds; this mixture is piped to a sedimentation tank, the effluent from which is completely treated sewage.