Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Removal of Cryptosporidium and Giardia through conventional water treatment and direct filtration /
Author Nieminski, Eva C.
CORP Author Utah Dept. of Environmental Quality, Salt Lake City. Div. of Drinking Water.;National Risk Management Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Year Published 1997
Report Number EPA-R-818895-01; EPA/600/R-97/025
Stock Number PB97-162507
OCLC Number 48685279
Subjects Water quality--Utah. ; Water--Purification--Filtration. ; Giardia lamblia--Control--Utah.
Additional Subjects Giardia ; Cryptosporidium ; Cysts ; Microorganism control(Water) ; Water pollution detection ; Water treatment plants ; Pathogens ; Protozoa ; Filtration ; Removal ; Water pollution control ; Turbidity ; Flotation ; Fluorescence ; Immunoassay
Library Call Number Additional Info Location Last
NTIS  PB97-162507 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 1 volume
Pilot- and full-scale evaluations of Giardia and Cryptosprodium cyst removal through direction filtration and conventional water treatment were conducted by the Utah Department of Environmental Quality. Cysts were seeded continuously in a step dose at a 0.5 gpm pilot plant and in spike at a 900 gpm full scale plant operated in conventional treatment and direct filtration regimes. Changes in source water quality influenced removal rates more than the mode of treatment in this study. Higher removal rates were consistently observed for Giardia cysts (3.3 log) than for Cryptosporidum oocysts (3.0 log). Two versions of the immunofluorescence staining method were evaluated for their efficiencies in detecting the protozoans in water samples and the results presented in this report.