active sludge

active sludge

[′ak·tiv ′sləj]
(civil engineering)
A sludge rich in destructive bacteria used to break down raw sewage.

active sludge

A sludge, 3 which is rich in destructive bacteria; useful in breaking down fresh sewage.
References in periodicals archive ?
Przepompowni part of flying - object 146 Pipelines and technological networks7 Excess sludge tank8 Apparatus TestReconstruction of existing facilities: the Active Sludge Tanks II A (aeration) for biological reactors - buildings 2A and 2B.
8 percent interest to put in place an active sludge mode of treatment for removal of ammonia from its wastewater.
Active sludge change and substratum degradation is related by the equation:
where the rate of the substrate biodegradation depends upon the mass balance of the active sludge microorganism growth.
The influence of KCl over metabolism in the active sludge system was also determined.
in wastewater reaches 400 mg/l, a large part of active sludge microorganisms, including microorganisms participating in the BOD process, are destroyed.
Without substrates, which limit mikroorganism growth speed, the factor is other agent that proceeds negative influence on active sludge.
While a high concentration of chlorides (400 mg/l) that get into the tank with wastewater reduced active sludge concentration more than twice (from 2.
Cells are destroyed and the concentration of active sludge lowers.
Using ferment preparation active sludge concentration changes fractionally, i.
Using ferment preparation and given chloride concentration, as the values of coefficient kd show, active sludge concentration decreases slowly.
Bacterial spores contained in an enzyme preparation produce a renewing effect upon active sludge.