Record Display for the EPA National Library Catalog
RECORD NUMBER: 49 OF 55
|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.|
|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|
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.