The activated sludge process is an aerobic (oxygen-rich), continuous-flow biological method for the treatment of domestic and biodegradable industrial wastewater, in which organic matter is utilized by microorganisms for life-sustaining processes,...

A biological wastewater treatment process in which voraciously feeding microorganisms are suspended in the flowing water. The microorganisms utilize the waste as food. This is a strictly aerobic process. Aeration provides the necessary dissolved oxygen...

This modification of the activated sludge process is applied to treatment of wastewaters in which much of the BOD is present in suspended or colloidal form, see Activated...

This is a closer estimate of the viable organisms in activated sludge than mixed liquor suspended solids due to the presence of inorganic...

Activated sludge is a process dealing with the treatment of sewage and industrial wastewaters.[1] Atmospheric air or pure oxygen is bubbled through primary treated sewage (or industrial wastewater) combined with organisms to develop a biological floc...

ABSTRACT: Laboratory digestion studies using waste activated sludges (WAS) were conducted to compare the digestion performance between anaerobic and aerobic processes. Nine samples of WAS from seven wastewater treatment plants were collected and batch-digested under both anaerobic and aerobic conditions for 30 days...

ABSTRACT: Tremendous advances have recently been made in the development of molecular tools for analysis of microbial populations in the environment. However, an appropriate scientific basis for quantification of new molecular data must exist to effectively use these tools toward increased understanding of complex...