Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Pressure Filtration of Waste Water Sludge with Ash Filter Aid.
Author Gerlic, James W. ; Rockwel, M. Daniel ;
CORP Author Cedar Rapids Water Pollution Control Plant, Iowa.
Year Published 1973
Report Number EPA-11060-EZX; 14374,; R2-73-231
Stock Number PB-223 535
Additional Subjects ( Sludge ; Pressure filtration) ; ( Sewage treatment ; Sludge disposal) ; ( Filter aids ; Sludge disposal) ; Sludge drying ; Performance evaluation ; Pilot plants ; Dewatering ; Fly ash ; Cost estimates ; Capitalized costs ; Operating costs ; Design criteria ; Vacuum filtration ; Water pollution control ; Sludge treatment
Library Call Number Additional Info Location Last
NTIS  PB-223 535 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 159p
Cedar Rapids, Iowa used pilot plant studies as an effective approach to an economic solution to dewatering secondary digested sludge. After piloting several dewatering processes, the pressure filter system was selected and a full scale plant was constructed as the first major installation in the United States. Performance data from the full scale plant was evaluated over a period of approximately nine months. This data indicates that the full scale plant is capable of operation at a greater capacity and efficiency than that projected from pilot plant data. Both fly ash and sludge ash were evaluated as a filter aid, with and without chemicals. Economic evaluations were made of operation and equipment. (Modified author abstract)