||Characterization of the Activated Sludge Process.
Bargma, Robert D. ;
Borgerdin, Joseph ;
||Los Angeles City Bureau of Sanitation, Calif.
||DI-14-12-148; EPA-17090-FJU; R2-73-224,; 11069
( Sewage treatment ;
Activated sludge process) ;
( Activated sludge process ;
Process variables) ;
Biochemical oxygen demand ;
Chemical removal(Sewage treatment) ;
Performance evaluation ;
Analysis of variance ;
Flow rate ;
Chemical oxygen demand
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Operational control parameters of the activated sludge process during steady-state and transient flow conditions were evaluated and related to carbon, nitrogen, and phosphorus removals. During steady-state testing, chemical oxygen demand, net growth rate, aeration tank detention time, and final settling tank detention time were found to be the key operational control parameters. Changes in COD removal and suspended solids removal were proportional to a change in control parameter. Nitrogen removal was related to specific operational parameters and system nitrogen balances were computed. Phosphorus removal without external chemical addition was related to specific operational parameters. (Author)
||Paper copy available GPO $0.95 as EPI. 23/2.
|NTIS Title Notes
||Environmental protection technology series.
|PUB Date Free Form
||13B; 68D; 91A