Record Display for the EPA National Library Catalog


Main Title Phosphate removal in an activated sludge facility /
Author Finger, Richard E. ; Mason, George J. ; Carlson, Dale A. ; Minton., Gary L.
Other Authors
Author Title of a Work
Finger, Richard E.
CORP Author Seattle Metropolitan Municipality, Wash.;National Environmental Research Center, Cincinnati, Ohio. Advanced Waste Treatment Research Lab.
Publisher Environmental Protection Agency, Office of Research and Development, National Environmental Research Center,
Year Published 1974
Report Number EPA-670-2-74-061; EPA-17010-EDA
Stock Number PB-235 749
OCLC Number 03814965
ISBN pbk.
Subjects Phosphorus ; Precipitation (Chemistry)
Additional Subjects Activated sludge process ; Phosphorus ; Precipitation(Chemistry) ; Sewage treatment ; Chemical removal(Sewage treatment) ; Flocculating ; Aeration ; Aluminum sulfate ; Iron chlorides ; Cost comparison ; Process control
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 670-2-74-061 Headquarters Library/Washington,DC 12/23/2014
ELBD ARCHIVE EPA 670-2-74-061 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 670-2-74-061 AWBERC Library/Cincinnati,OH 11/20/1998
NTIS  PB-235 749 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 93 pages : illustrations ; 28 cm.
Biological and chemical means of phosphorus removal were studied at Metro Seattle's activated sludge facility in Renton, WA. The studies ranged from jar tests to full-scale plant manipulation. Only the secondary activated sludge system was studied. The results of these studies indicate that the observed removal of phosphorus, in a soft water area activated sludge facility, is primarily biological in nature. Both ferric chloride and alum are effective in removing phosphorus and both can be controlled by automatic means. Initial capital costs for either chemical are the same except for larger storage tank for alum.
Prepared under Project No. WPRD 247-01, Program Element No. 1BB043. Issued Aug. 1974. Includes bibliographical references (pages 81-92).