Record Display for the EPA National Library Catalog


Main Title Applications of Agglomerate Testing to Problems in Water Resources Management.
Author Ha, Robert K. ; Gupt, Kailash B. ;
CORP Author Wisconsin Univ., Madison. Water Resources Center.
Year Published 1972
Report Number DI-14-01-0001-3050 ;DI-14-31-0001-3250; OWRR-A-028-WIS; 01965,; A-028-WIS(4)
Stock Number PB-213 178
Additional Subjects ( Water resources ; Management planning) ; ( Water supply ; Turbidity) ; ( Water treatment ; Agglomeration) ; Waste water ; Water treatment chemicals ; Flocculating ; Flocculants ; Coagulation ; Concentrating ; Jar test techniques ; Velocity gradient paths ; Water resources management
Library Call Number Additional Info Location Last
NTIS  PB-213 178 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 78p
Studies were conducted to evaluate several coagulation testing techniques. Of those considered, the jar-test was the most useful for evaluating the settleability of flocculated suspensions, and the membrane refiltration test for evaluating filtrability of a suspension. A jar-test procedure was then developed to provide more reproducible responses. Different velocity-gradient paths were examined for their effect on the overall efficiency of the flocculation process. The tapered velocity gradient path provided the greatest turbidity removal for settling periods of 30 minutes or more. For short settling periods (e.g., 5 min.), however, the step-up path was particularly useful. The effect of increased particle concentration on the agglomeration process was also studied. (Author)