| Main Title |
Oxygen transfer studies at the Madison Metropolitan Sewerage District Facilities |
| Author |
Boyle, William C. ;
Craven, A. ;
Danley, W. ;
Rieth, M.
|
| Other Authors |
|
| CORP Author |
Wisconsin Univ.-Madison. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| Publisher |
Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1994 |
| Report Number |
EPA/600/R-94/096 |
| Stock Number |
PB94-200847 |
| OCLC Number |
48209792 |
| Additional Subjects |
Sewage treatment plants ;
Oxygenation ;
Diffusers ;
Off-gas systems ;
Gas sampling ;
Performance evaluation ;
Aeration ;
Field tests ;
Wisconsin ;
Activated sludge process ;
Ceramics ;
Fines ;
Long term effects ;
Maintenance ;
Cleaning ;
Fine pore aeration systems ;
Oxygen transfer efficiency ;
Madison(Wisconsin)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD |
EPA 600-R-94-096 |
|
AWBERC Library/Cincinnati,OH |
11/02/2001 |
| NTIS |
PB94-200847 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xi, 105 p. : ill. ; 28 cm. |
| Abstract |
Field studies at the Madison Metropolitan Sewerage District facilities were conducted over a 3-year period to obtain long-term data on the performance of fine pore aeration equipment in municipal wastewater. The studies were conducted on several basins in the East Plant containing ceramic domes installed in 1977 and two sets of first-pass basins in the West Plant with newly installed ceramic discs. The performance of the domes was excellent even after 10 years of service. The conclusion was based on measured oxygen transfer efficiencies by off-gas analysis, alpha calculations, and diffuser characterization. Reasons for excellent performance included routine maintenance of the diffusers and the use of high quality ceramic diffusers and hardware. There was evidence presented in the plant that operation at high SRTs (low F/M loadings), which produced complete nitrification, resulted in higher alpha Standard Oxygen Transfer Efficiency (alpha SOTE) values than operations at low SRTs. Studies on the impact of diffuser cleaning and hydraulic flow patterns on performance were also reported. |
| Notes |
Project officer: Richard C. Brenner. Cooperative agreement CR812167. Photocopy. |
