Record Display for the EPA National Library Catalog


Main Title Effective Filtration Methods for Small Water Supplies.
Author Cleasby, J. L. ; Hilmoe, D. J. ; Dimitracopoulos, C. ; Diaz-Bossio, L. M. ;
CORP Author Iowa State Univ., Ames. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinati, OH.
Year Published 1984
Report Number EPA-R-808837; EPA-600/2-84-088;
Stock Number PB84-187905
Additional Subjects Water treatment ; Filtration ; Water quality ; Performance evaluation ; Potable water ; Design criteria ; Coagulants ; Flocculation ; Turbidity ; Coliform bacteria ; Sand filtration ; Monitoring
Library Call Number Additional Info Location Last
NTIS  PB84-187905 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 261p
A 2-year study was conducted of various simple water filtration systems potentially appropriate for high-quality surface waters serving small systems. A slow sand filter without coagulant and a direct, rapid filter with coagulant were operated in parallel. Direct filtration with and without flocculation were compared in parallel in one phase of the study; declining- and constant-rate filtration were compared in parallel in another phase. The study was designed to emphasize simple treatment systems for small supplies where operational skill and attention may be lacking. The systems were compared while monitoring turbidity, particle count, and coliform bacteria in the influent and filtered water.