Record Display for the EPA National Library Catalog
RECORD NUMBER: 15 OF 18| Main Title | Stability of Turbidity in Raw Water and Its Relationship to Chlorine Demand. | |||||||||||
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| 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 | |||||||||||
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| 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. |