||Alum Addition to Activated Sludge with Tertiary Solids Removal.
Hai, Alan B. ;
Stamber, John B. ;
Bisho, Dolloff F. ;
||Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio.
( Sewage treatment ;
( Alums ;
Sewage treatment) ;
( Phosphorus ;
Chemical removal(Sewage treatment)) ;
Pilot plants ;
Tertiary sewage treatment
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The report describes the pilot treatment of District of Columbia primary effluent consisting of four-stage step aeration, alum addition in the final aeration pass for phosphorus removal, secondary clarification and multi-media filtration for tertiary solids separation.