| Main Title |
Evaluation and demonstration of the capillary suction sludge dewatering device / |
| Author |
Lippert, T. E. ;
Skriba., M. C.
|
| Other Authors |
|
| CORP Author |
Westinghouse Electric Corp., Pittsburgh, Pa. Research and Development Center. |
| Publisher |
Environmental Protection Agency, Office of Research and Development, National Environmental Research Center, |
| Year Published |
1974 |
| Report Number |
EPA-670-2-74-017; EPA-68-01-0094 |
| Stock Number |
PB-232 358 |
| OCLC Number |
02907349 |
| ISBN |
pbk. |
| Subjects |
Sewage sludge--Drying ;
Sewage disposal
|
| Additional Subjects |
Sewage treatment ;
Sludge drying ;
Dewatering ;
Filtration ;
Capillary pressure ;
Thickening ;
Belt conveyers ;
Pilot plants
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 670-2-77-017 |
c.1 |
Headquarters Library/Washington,DC |
09/18/2013 |
| ELBD RPS |
EPA 670-2-74-017 |
repository copy |
AWBERC Library/Cincinnati,OH |
08/19/2019 |
| ELBD ARCHIVE |
EPA 670-2-77-017 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-232 358 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 71 pages : illustrations, graphs ; 27 cm. |
| Abstract |
A device for dewatering waste activated sludge that uses the capillary suction in a porous belt has been demonstrated on a pilot scale test unit. The system uses capillary action to initially dewater the sludge and form a thin sludge cake which is then mechanically compressed in a final step to obtain a still dryer cake. Both dewatering steps are incorporated into a single system endless belt design. Sludge feed capacities from 2 to 4.5 lbs/hr sq. ft. (10 to 22 Kgs/hr sq. m) have been demonstrated with the cake solids at discharge ranging from 15 to 18 percent. These results were obtained with a conditioned waste activated sludge at a coagulant cost of approximately $4.00/ton ($4.40/metric ton). The device has also been tested on an anaerobically digested and a mixed primary-activated sludge. (Author) |
| Notes |
Prepared by Westinghouse Electric Corporation, Research and Development Center, Pittsburgh, Pa., under program element 1B2043. Includes appendices. Includes bibliographical references (page 55). |
