Record Display for the EPA National Library Catalog

RECORD NUMBER: 3 OF 4

OLS Field Name OLS Field Data
Main Title Removal of Surface Inactive Substances by Foam Separation Processes.
Author Rubi, Alan J. ;
CORP Author Ohio State Univ., Columbus. Water Resources Center.
Year Published 1972
Report Number OWRR-A-013-OHIO; 04557,; A-013-OHIO(2)
Stock Number PB-214 510
Additional Subjects ( Flotation ; Metals) ; ( Industrial waste treatment ; Flotation) ; Separation ; Iron ; Zinc ; Copper ; Lead ; Surfactants ; Laurates ; Quaternarny ammonium salts ; pH ; Hydrolysis ; Colloids ; Precipitation(Chemistry) ; Bacillus cereus ; Bacteria ; Titanium dioxide ; Illite ; Froth flotation ; Foam fractionation ; Cetrimonium bromide ; Microflotation
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-214 510 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 57p
Abstract
The major findings of an extensive laboratory investigation on the removal and use of hydrolyzable metals in foam separations are described in terms of the aqueous chemistry of the metals examined. These metals included iron(III), zinc(II), copper(II) and lead(II) and the surfactant collectors were lauric acid, sodium lauryl sulfate, stearylamine, and hexadecyltrimethyl ammonium bromide (CTAB). Aluminum sulfate was used as the coagulant for the sol studies with B. cereus, illite, and titanium dioxide. Solution and operating variables that were studied. Solution pH was found to be the single most important variable affecting the process. As compared to ion removal by foam fractionation or the colloid flotation of discrete particles, the precipitate flotation of condensed metal hydroxide or the microflotation of coagulated particles was found to be more efficient and much less dependent on most of the variables examined.