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Main Title Treatment of Disperse Textile Dye Wastes by Foam Fractionation.
Author Michelse, Donald L. ; Fansle, Thomas ;
CORP Author Virginia Polytechnic Inst., Blacksburg. Water Resources Research Center.
Year Published 1970
Report Number VPI-WRRC-Bull-34; OWRR-A-017-VA; 02832,; A-017-VA(2)
Stock Number PB-196 313
Additional Subjects ( Water pollution ; Dyes) ; ( Disperse dyes ; Water pollution) ; ( Textile industry ; Water pollution) ; Industrial wstes ; Polyester fibers ; Surfactants ; Foaming agents ; Flotation ; Cations ; Turbidity ; Cost estimates ; Quaternary ammonium salts ; Polyelectrolytes ; Toxicity ; Waste water treatment ; Water pollution control ; Foam fractionation
Library Call Number Additional Info Location Last
NTIS  PB-196 313 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 100p
Laboratory foam fractionation and limited jar flocculation investigations were conducted to determine how effective foam fractionation was for the treatment of textile dispersed dye wastes and the chemical costs for treatment. The results indicate that cationic surfactants at about 50 ppm concentration can be used as a foaming aid to remove 52.1 percent of the COD, 89.2 percent of the color, and 75.3 percent of the turbidity from a simulated dye bath waste containing 300 ppm dye and 200 ppm dispersing agent (sodium lignosulfonate). The chemical cost would be about $210 per day to treat 1.0 MGD. Actual dilute wastes respond similarly but would be costly to treat since surfactant concentration would be 10 to 25 ppm. On the other hand, flocculation with 100 ppm alum removed 70 percent COD, 75 percent color, and 82 percent turbidity from a dilute discharge (about 1/10 of the simulated waste). Treatment cost would be $55 per MGD. (Author)