||Control strategies for the activated sludge process /
Keinath, Thomas M. ;
Cashion, Bryan S.
||Clemson Univ., SC.;Municipal Environmental Research Lab., Cincinnati, OH. Wastewater Research Div.
|| Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Sewage--Purification--Activated sludge process.
Activated sludge process ;
Sewage treatment ;
Automatic control ;
Flow rate ;
Process control ;
Mathematical models ;
Pilot plants ;
Computer programs ;
Biochemical oxygen demand ;
Organic loading ;
Return flow ;
MACRO computer program
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||175 pages : illustrations ; 28 cm.
The focus of this research centers on strategies to control both mean solids retention time (MSRT) and food to microorganism ratio (F/M). Two solids inventory control strategies were examined: (1) control of the recycle flow rate when provision has been made for a fixed volume storage chamber; and (2) control of the recycle flow rate when provision has been made for a variable volume storage chamber. Both strategies were evaluated by simulation using a structured model. The first strategy was also evaluated through a pilot study conducted at the Blue Plains Pilot Waste Treatment Facility.
"Environmental Systems Engineering, Clemson University." "Wastewater Research Divsion, Municipal Environmental Research Laboratory." "August 1980"--Cover. Includes bibliographical references. "Grant no. R864357-01-0." Microfiche.