| Main Title |
Municipal Sewage Treatment with a Rotating Biological Contactor / |
| CORP Author |
Allis-Chalmers Mfg. Co., Milwaukee, Wis. Research Div. |
| Publisher |
Allis-Chalmers, Research Division, |
| Year Published |
1969 |
| Report Number |
PB-201 701 |
| Stock Number |
PB-201 701 |
| OCLC Number |
976002768 |
| Subjects |
Sewage--Purification--Research ;
Sewage disposal--Wisconsin--Pewaukee
|
| Additional Subjects |
( Sewage treatment ;
Contactors) ;
Biochemical oxygen demand ;
Microorganisms ;
Nitrogen ;
Phosphorus ;
Particles ;
Clarification ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD RPS |
EPA 950-K-69-002 |
repository copy |
AWBERC Library/Cincinnati,OH |
03/22/2017 |
| NTIS |
PB-201 701 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
66 unnumbered pages : illustrations, charts, photographs ; 28 cm |
| Abstract |
The Milwaukee Metropolitan Sewerage Commission installed a rotating biological contactor (RBC) to treat municipal sewage. The RBC obtained in excess of 90% BOD removal at loading rates of 350 to 400 lbs COD per day per 1000 cu. ft. of disc volume. Nitrogen was shown to be removed in a ratio of 1:25, nitrogen to COD. Percent BOD removal was consistently 5% greater than percent COD removal. Treatment efficiency was increased with increased detention time, and decreased by: (1) lower disc speed; (2) lower strength wastes; and (3) high hydraulic loading. Recovery from periods of high hydraulic loading was extremely quick. Further planned investigations included isolation and identification of individual species of microorganisms and comparison with the microorganisms of activated sludge and trickling filters. (WRSIC abstract) |
| Notes |
"May, 1969." "Contract No. 14-12-24 - Modification No. 2." "EPA grant no. S802905. EPA project officer: Robert L. Bunch." |
| Contents Notes |
The Milwaukee Metropolitan Sewerage Commission installed a rotating biological contactor (RBC) to treat municipal sewage. The RBC obtained in excess of 90% BOD removal at loading rates of 350 to 400 lbs COD per day per 1000 cu. ft. of disc volume. Nitrogen was shown to be removed in a ratio of 1:25, nitrogen to COD. Percent BOD removal was consistently 5% greater than percent COD removal. Treatment efficiency was increased with increased detention time, and decreased by: (1) lower disc speed; (2) lower strength wastes; and (3) high hydraulic loading. Recovery from periods of high hydraulic loading was extremely quick. Further planned investigations included isolation and identification of individual species of microorganisms and comparison with the microorganisms of activated sludge and trickling filters. (WRSIC abstract) |
| Place Published |
Milwaukee, Wisconsin |
| Corporate Au Added Ent |
Allis-Chalmers.; United States. Department of the Interior. Federal Water Pollution Control Administration. |
| PUB Date Free Form |
1969 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
RDA |
| OCLC Time Stamp |
20170316064503 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02164nam 2200349Ki 45010 |
