Record Display for the EPA National Library Catalog

RECORD NUMBER: 316 OF 2070

OLS Field Name OLS Field Data
Main Title Coagulation Testing: A Comparison of Techniques.
Author Te Kipp, Rudy J. ; Ha, Robert K. ;
CORP Author Wisconsin Univ., Madison. Water Resources Center.
Year Published 1970
Report Number DI-14-01-0001-3050; OWRR-A-028-WIS; 03312,; A-028-WIS(2)
Stock Number PB-196 666
Additional Subjects ( Water treatment ; Coagulation) ; ( Coagulants ; Evaluation) ; ( Clarification ; Water treatment) ; ( Flocculating ; Water treatment) ; ( Sewage treatment ; Coagulation) ; Colloids ; Filtration ; Turbidity ; Microorganisms ; Tests ; Water analysis ; Water quality ; Flocculating ; Alums ; Waste water treatment
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-196 666 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 78p
Abstract
The literature indicates that over twenty different tests have been used for the purpose of evaluating the coagulation of turbidity in water treatment. Five of these tests were selected for study as they were felt to be basic and/or particularly important. These include: residual turbidity, filtered turbidity, refiltration, colloid titration, and a continuous pilot scale filter process. The five methods were compared holding all variables other than pH and alum dose constant. While some tests were shown to strongly correlate with others, the results of the refiltration technique were found to be biased in favor of low alum concentrations, and the colloid titration test was found to lack sensitivity with respect to variations in alum dosage but was quite sensitive to pH changes. The practical implications of this study suggest that water treatment plants should follow guidelines given for choosing the most useful test for their process.(Author)