| Main Title |
Removal of Phosphates by Sorption on Activated Alumina. |
| Author |
Purushothama, Krishnier ;
Yu, Checkman M. ;
|
| CORP Author |
Missouri Water Resources Research Center, Rolla. |
| Year Published |
1970 |
| Report Number |
DI-14-31-0001-3025; OWRR-A-029-MO; 03518,; A-029-MO(1) |
| Stock Number |
PB-196 872 |
| Additional Subjects |
( Water pollution ;
Phosphates) ;
( Sewage treatment ;
Phosphates) ;
( Chemical removal(Sewage treatment) ;
Phosphates) ;
( Adsorption ;
Phosphates) ;
( Adsorbants ;
Alumina) ;
Efficiency ;
Industrial waste treatment ;
Activated sludge process ;
pH ;
Ions ;
Calcium ;
Suspended sediments ;
Materials recovery ;
Water pollution control ;
Chemical oxygen demand
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-196 872 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
86p |
| Abstract |
The purpose of the investigation was to study the removal of phosphorus from waste water by sorption on activated alumina, and determine the capacity of the alumina to sorb phosphates in the presence of other ions, the effect of the influent flow rate and phosphorus concentration on the efficiency of the process, and the feasibility of regeneration of the used alumina. The studies were conducted using deionized and tap water to which inorganic phosphate had been added, and secondary effluent from bench-scale activated sludge units. They involved batch tests employing three types of activated alumina, ALCOA XM (minus 325 mesh), F-1 (minus 100 mesh), and F-1 (28-48 mesh), and continuous-flow tests carried out in three specially designed glass sorption columns using the F-1 (28-48) ALUMINA. Activated alumina was found to have a greater capacity for removing phosphorus in the presence of hardness-causing ions, and each type of alumina had a different capacity for each test water used. The fraction of phosphorus removed by each alumina decreased when the initial phosphorus concentration in the test water increased. The influent flow rate inversely affected the phosphorus loading capacity of the alumina, and the used aluminas could be effectively regenerated with a 2M sodium hydroxide solution along. (Author) |
| NTIS Title Notes |
Completion rept. Jul 69-Jun 70. |
| PUB Date Free Form |
30 Dec 70, |
| Category Codes |
13B; 68D |
| NTIS Prices |
PC A05 MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326515588 |
| Origin |
NTIS |
| Type |
CAT |
