Record Display for the EPA National Library Catalog


Main Title Hatfield Township, Pennsylvania advanced waste treatment plant /
Author Greenlund, Tracy W.,
Other Authors
Author Title of a Work
Gaines, Fred R.
Publisher Municipal Environmental Research Laboratory Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-600/2-75-030; EPA-11060-FRQ; EPA-ROAP-21ASO-046
Stock Number PB-245 622
OCLC Number 01890938
Subjects Sewage disposal plants--Environmental aspects--Pennsylvania--Hatfield (Township) ; Sewage disposal plants--Pennsylvania--Hatfield (Township)--Design and construction ; Sewage disposal plants--Design and construction
Additional Subjects Sewage treatment ; Activated sludge process ; Chemical removal(Sewage treatment) ; Sewage filtration ; Nitrification ; pH ; Clarification ; Pennsylvania ; Cost estimates ; Performance evaluation ; Process charting ; Phosphorus ; Nitrogen ; Alums ; Calcium oxides ; Sewage treatment plants ; Hatfield Township(Pennsylvania) ; Tertiary sewage treatment ; Physical chemical treatment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJAD  EPA 600/2-75-030 Region 3 Library/Philadelphia, PA 07/03/1997
EJBD ARCHIVE EPA 600-2-75-030 Headquarters Library/Washington,DC 06/11/2012
EJBD  EPA 600-2-75-030 c.1 Headquarters Library/Washington,DC 05/02/2013
ELBD  EPA 600-2-75-030 AWBERC Library/Cincinnati,OH 11/20/1998
ESAD  EPA 600-2-75-030 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-245 622 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 224 pages : illustrations ; 28 cm
The Hatfield Township, Pennsylvania, Water Pollution Control Plant was designed to encompass primary chemical treatment, secondary combined activated sludge and nitrification facilities, tertiary chemical tube clarification and mixed media filtration. The operation of the facility demonstrated that the use of flow equalization facilities improves plant operations by reducing and standardizing chemical concentrations. Phosphorus is removed efficiently in a combined primary-tertiary phase with operations personnel having the flexibility to optimize each process. Lime feed control by pH is easily accomplished, although recirculation of primary sludges is not always necessary. Tube clarifiers and mixed media filters combine to produce a highly polished effluent. Nitrification was observed to some extent in this modified facility, however, it was extremely difficult to control.
"Program element no. 1BB043." Report prepared by Tracy Engineers, Inc., Camp Hill, Pennsylvania. Includes bibliographical references (pages 161-163). "Report date September 1975."