Record Display for the EPA National Library Catalog

RECORD NUMBER: 45 OF 328

OLS Field Name OLS Field Data
Main Title Chemical and Physical Factors in the Flocculation of Metal Plating Wastes with Polyelectrolytes.
Author Sussma, Donald L. ;
CORP Author Rhode Island Univ., Kingston. Water Resources Center.
Year Published 1972
Report Number DI-14-31-0001-3240; OWRR-A-037-RI; 02626,; A-037-RI(1)
Stock Number PB-213 460
Additional Subjects ( Industrial waste treatment ; Metal finishing) ; ( Electroplating ; Industrial waste treatment) ; ( Flocculating ; Industrial waste treatment) ; Polyelectrolytes ; Chromates ; Copper ; Nickel ; Water pollution ; Suspended sediments ; Turbidity ; Reaction kinetics ; Particle size ; Water pollution control
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-213 460 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 16p
Abstract
Studies are described on the flocculation of metal plating wastes with cationic, anionic, and nonionic polyelectrolytes. Model wastes were prepared with Cr2O7(-2), Ni(+2), Cu(+2), and clay as a source of turbidity. Actual waste samples also were used. The efficiency of the treatment of these wastes with polyelectrolytes was defined in terms of the flocculation kinetics. The parameters of interest were the initial decrease in turbidity, dr/dt and the turbidity after 1 hour. Other parameters that were evaluated in order to follow the flocculation process were the final particle size and the settled sludge resistivity to flow. The treatment of metal plating wastes by polyelectrolyte flocculation was compared to the treatment by reduction and precipitation methods. (Author)