Record Display for the EPA National Library Catalog

RECORD NUMBER: 29 OF 37

OLS Field Name OLS Field Data
Main Title Stability of Turbidity in Raw Water and Its Relationship to Chlorine Demand.
Author Katz, E. L. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA/600/J-86/019;
Stock Number PB86-185543
Additional Subjects Turbidity ; Water pollution ; Stability ; Sampling ; Chlorine ; Fluid filters ; Membranes ; Chemical analysis ; Residues ; Carbon ; Organic compounds ; Nitrogen ; Particle size ; Disinfection ; Tables(Data) ; Reprints ; Raw water ; Total organic carbon ; Drinking water
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-185543 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 7p
Abstract
In the study, 160 raw water samples collected throughout the United States were examined for chlorine demand, turbidity, and other chemical parameters to determine whether these parameters were interrelated. Eighty-nine of these samples were examined over a 1-week period to determine the stability of the turbidity values over 1, 3, and 7 days. Changes in turbidity were on the order of 77% of samples in the range of 0.05 to 1 ntu; 90 percent of samples in the 1 to 5 ntu range; and 96% of those >5.0 ntu. In some cases, more than a 200% change in turbidity is reflected.