| Main Title |
Automatic sludge blanket control in an operating gravity thickener / |
| Author |
Polta, R. C., ;
Stulc, D. A.
|
| CORP Author |
Metropolitan Waste Control Commission, St. Paul, MN.;Municipal Environmental Research Lab., Cincinnati, OH. |
| Publisher |
Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1979 |
| Report Number |
EPA-600/2-79-159; EPA-S-803602 |
| Stock Number |
PB80-132350 |
| OCLC Number |
06287488 |
| Subjects |
Sewage disposal--Minnesota
|
| Additional Subjects |
Automatic control equipment ;
Sewage treatment ;
Performance evaluation ;
Thickening ;
Sludge ;
Process control ;
Dewatering ;
Thickeners(Equipment) ;
Cost analysis ;
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
TD767.P64 1979 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600-2-79-159 |
c.1 |
Headquarters Library/Washington,DC |
07/09/2013 |
| ELBD ARCHIVE |
EPA 600-2-79-159 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-2-79-159 |
|
AWBERC Library/Cincinnati,OH |
04/10/1998 |
| ESAD |
EPA 600-2-79-159 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB80-132350 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xi, 77 pages : illustrations ; 28 cm. |
| Abstract |
The purposes of this study were to evaluate some of the hardware required to monitor and control the operation of a gravity thickener and to identify any benefits associated with improved sludge blanket level control. An automatic sludge blanket level control system was installed in one of the six gravity thickeners at the Metropolitan Waste Water Treatment Plant. In addition, optical type solids analyzers were installed to monitor the inflow, overflow, and underflow streams of two basins - one with automated blanket level control and one with manual control. The performance characteristics of the instruments were documented during a series of five tests. |
| Notes |
Includes bibliographical references (page 65). |
