Record Display for the EPA National Library Catalog
RECORD NUMBER: 458 OF 1079Main Title | Foam separation of acid mine drainage / | ||||||||||||||||||||||||||
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CORP Author | Hanson, Peter J., | ||||||||||||||||||||||||||
Publisher | United States Environmental Protection Agency, Office of Research and Monitoring, | ||||||||||||||||||||||||||
Year Published | 1971 | ||||||||||||||||||||||||||
Report Number | EPA14010-FUI-10/71; EPA 600-R-71-111; EPA-14-12-876; 07102, | ||||||||||||||||||||||||||
Stock Number | PB-208 411 | ||||||||||||||||||||||||||
OCLC Number | 00314926 | ||||||||||||||||||||||||||
Subjects | Acid mine drainage ; Water--Purification--Foam fractionation ; Horizons Incorporated | ||||||||||||||||||||||||||
Additional Subjects | Horizons Incorporated ; ( Mine waters ; Flotation) ; ( Water pollution ; Additives ; Frothing ; Chelates ; Metals ; Iron ; Calcium ; Magnesium ; Manganese ; Aluminum ; Surfactants ; Extraction ; pH control ; Cost estimates ; Feasibility ; Froth flotation ; Water pollution control ; Mine acid drainage | ||||||||||||||||||||||||||
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Collation | vii, 59 pages : illustrations, figures, tables ; 28 cm | ||||||||||||||||||||||||||
Abstract | Laboratory studies of continuous flow foam separation were conducted to determine the optimum conditions for maximum extraction of dissolved metal cations (Fe, Ca, Mg, Mn, and Al) from acid mine drainage. Foaming experiments were conducted in a 6 in.-diameter glass column capable of liquid flow rates of 3-12 gal. per hour. The approach to foam separation taken was the production of the persistent foams which allowed protracted foam drainage to reduce liquid carry-over in the foam. The effects of pH, chelate addition, surfactant type and concentration, air sparging rate, metal concentration and foam drainage were investigated in relation to metal extration. Results show that sewage foamability is too low for foam separation alone to be a feasible sewage treatment method. (Author) |
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Notes | "October 1971." "Research conducted by Horizons Incorporated, Cleveland, Ohio." Environmental Protection Agency Contract No. Contract Number: 14-12-876. Includes bibliographical references (pages 53-55). |
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Contents Notes | Laboratory studies of continuous flow foam separation were conducted to determine the optimum conditions for maximum extraction of dissolved metal cations (Fe, Ca, Mg, Mn, and Al) from acid mine drainage. Foaming experiments were conducted in a 6 in.-diameter glass column capable of liquid flow rates of 3-12 gal. per hour. The approach to foam separation taken was the production of the persistent foams which allowed protracted foam drainage to reduce liquid carry-over in the foam. The effects of pH, chelate addition, surfactant type and concentration, air sparging rate, metal concentration and foam drainage were investigated in relation to metal extraction. Results show that sewage foamability is too low for foam separation alone to be a feasible sewage treatment method. |