Record Display for the EPA National Library Catalog

RECORD NUMBER: 22 OF 28

OLS Field Name OLS Field Data
Main Title Slow Sand Filtration in the United States (Book Chapter).
Author Logsdon, G. ; Fox, K. ; Graham, N. J. D. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Drinking Water Research Div.
Publisher c1991
Year Published 1991
Report Number EPA/600/D-91/035;
Stock Number PB91-176883
Additional Subjects Sand filtration ; Water treatment ; Water supply ; Potable water ; Water services ; Bacteria ; Viruses ; Giardia ; Utilization ; Water pollution ; Slow sand filtration
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-176883 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/04/1991
Collation 11p
Abstract
Interest in slow sand filtration has increased dramatically in the United States in the past ten years. Research conducted to evaluate removal of Giardia cysts and bacteria, showed that slow sand filtration is very effective in removal of these contaminants. Slow sand filters are much simpler and easier to operate than plants that employ coagulation. Thus they are very well suited for treatment of previously unfiltered surface waters and would be well suited for small utilities serving from 25 to 3000 persons. The U.S. EPA estimates that about 1000 slow sand filters may be built as a result of proposed EPA regulations on surface water treatment.