| Main Title |
Phosphate Removal by Activated Sludge Amenability Studies at Indianapolis, Indiana. |
| Author |
Myers, L. H. ;
Horn, J. A. ;
Lively, L. D. ;
Witherow, J. L. ;
Priesing, C. P. ;
|
| CORP Author |
Robert S. Kerr Water Research Center, Federal Water Pollution Control Administration, U. S. Department of the Interior, Ada, OK. |
| Year Published |
1968 |
| Report Number |
EPA/000/R-68/007 |
| Stock Number |
PB-226 381 |
| Additional Subjects |
Chemical removal(Sewage treatment) ;
Phosphorus ;
Activated sludge process ;
Pilot plants ;
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-226 381 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
51 p. |
| Abstract |
Phosphate removal by activated sludge was investigated in pilot and plant scale research conducted at the Indianapolis, Indiana, Southwest Sewage Treatment Plant. These studies show that the aeration tanks were averaging 20 percent removal of the orthophosphate in the tank influent. Pilot investigations were made to determine the amenability of the waste and activated sludge to phosphate removal. Removal gradually increased with increasing oxygen demanding substrate or hardness concentration. Ferrous iron or aluminum salts removed high levels of orthophosphate, which agrees with previous studies. Following an acclimation period of 16 to 40 hours, orthophosphate removal increased to 78 percent which, excluding the chemical addition studies, was the maximum removal efficiency obtained. The waste and sludge were classified as moderately amenable to phosphate removal. (Modified author abstract) |
