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RECORD NUMBER: 50 OF 150

OLS Field Name OLS Field Data
Main Title Effect of Surfactant Micelles on Metal Ion Removal by Flotation from Metallurgical Wastewater.
Author Venabl, Raymond L. ; Ok, Uriel Michael ;
CORP Author Missouri Water Resources Research Center, Rolla.
Year Published 1971
Report Number DI-14-01-0001-1517; OWRR-B-017-MO; B-017-MO(1),; 02973
Stock Number PB-205 423
Additional Subjects ( Flotation ; Surfactants) ; ( Micelles ; Flotation) ; ( Chemical removal(Water treatment) ; Metals) ; Organic sulfates ; Ions ; Industrial waste treatment ; Theories ; Interfacial tension ; Zinc ; Copper ; Lead ; Foam fractionation ; Dodecyl sulfate/(sodium-salt) ; Ion flotation
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-205 423 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 124p
Abstract
The study is a fundamental laboratory investigation of events occurring on a molecular scale that influence the process of ion flotation. To accomplish these objectives critical micelle concentrations and micellar molecular weights have been determined for sodium dodecyl sulfate in the presence of copper, lead, zinc, and magnesium and critical micelle concentrations have been determined with sodium and silver nitrate as the added electrolytes. Flotation studies made by frothing for four hours and then analyzing the collapsed foam showed that this surfactant is not at all selective among these divalent metal ions, increasing metal ion concentration resulted in more total metal removal but a lower percentage removal at any given surfactant concentration, formation of surfactant micelles reduced flotation efficiency markedly, and precipitation would likely be a problem in practical application.