Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation and demonstration of the capillary suction sludge dewatering device /
Author Lippert, T. E. ; Skriba., M. C.
Other Authors
Author Title of a Work
Skriba, M. C.,
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
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 670-2-77-017 Headquarters Library/Washington,DC 06/17/2013
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
NTIS  PB-232 358 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation ix, 71 pages : illustrations, graphs ; 27 cm.
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)
Prepared by Westinghouse Electric Corporation, Research and Development Center, Pittsburgh, Pa., under program element 1B2043. Includes appendices. Includes bibliographical references (page 55).