Record Display for the EPA National Library Catalog


Main Title Tertiary treatment for phosphorus removal at Ely, Minnesota AWT Plant April, 1973 thru March, 1974. /
Author Sheehy, John W.,
Other Authors
Author Title of a Work
Evans, Francis L.
CORP Author Municipal Environmental Research Lab., Cincinnati, Ohio.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory,
Year Published 1976
Report Number EPA-600/2-76-082
Stock Number PB-251 245
OCLC Number 02155953
Subjects Sewage disposal plants--Minnesota--Ely ; Phosphorus ; Sewage--Purification
Additional Subjects Sewage treatment ; Sludge disposal ; Phosphorus ; Chemical removal(Sewage treatment) ; Design ; Clarification ; Trickling filters ; Performance ; Filtration ; Maintenance ; pH ; Operating costs ; Calcium oxides ; Shagawa Lake ; Minnesota ; Sewage treatment plants ; Tertiary treatment ; Ely(Minnesota)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-76-082 Headquarters Library/Washington,DC 01/21/2010
EJBD  EPA 600-2-76-082 Headquarters Library/Washington,DC 07/18/2013
EKBD  EPA-600/2-76-082 Research Triangle Park Library/RTP, NC 06/20/2003
ESAD  EPA 600-2-76-082 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-251 245 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 122 pages : illustrations ; 28 cm.
The report discusses the design, the construction and the first year's operation of the 1.5 mgd tertiary treatment plant located in Ely, Minnesota. The tertiary treatment plant was constructed to reduce the phosphorus concentration from the existing trickling filter plant effluent, a point source constituting 80% of the phosphorus entering culturally eutrophic Shagawa Lake. The tertiary plant was designed and constructed to reduce the total phosphorus concentration in the trickling filter plant effluent to 0.05 mg/l. The tertiary facility consists of flow equalization, two-stage lime clarification followed by dual-media filtration and chlorination. The report includes performance data, operational data, maintenance requirements, and operating costs for the Ely AWT facility. The report presents a thorough discussion of phosphorus performance data. There is a discussion of sludge treatment processes. Operating data described includes wastewater flow, chemical dose, pH, and clarifier solids volume. Frequent and routine maintenance items are included. Operating costs are divided into five categories and 27 sub-categories.
"Grant no. S-802309." Includes bibliographical references (page 69).