| Main Title |
Tertiary treatment for phosphorus removal at Ely, Minnesota AWT Plant April, 1973 thru March, 1974. / |
| Author |
Sheehy, John W.,
|
| Other Authors |
|
| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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 |
| ELBD ARCHIVE |
EPA 600-2-76-082 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| 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. |
| Abstract |
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. |
| Notes |
"Grant no. S-802309." Includes bibliographical references (page 69). |
