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Main Title Aerobic and Anaerobic Treatment of C.I. Disperse Blue 79. Volume 1.
Author Gardner, D. A.; Holdsworth, T. J.; Shaul, G. M.; Dostal, K. A.; Betowski, L. D.;
CORP Author Radian Corp., Milwaukee, WI.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher Oct 89
Year Published 1989
Report Number EPA-68-03-3371; EPA/600/2-89/051A;
Stock Number PB90-111642
Additional Subjects Azo dyes; Activated sludge; Sludge digestion; Waste water treatment; Biodeterioration; Anaerobic processes; Aerobic processes; Metabolism; Municipalities; Tables(Data); Graphs(Charts); C.I. Disperse Blue 79; Environmental fate
Library   Call Number Additional Info Location Last
NTIS PB90-111642 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/10/1990
Collation 117p
The study was conducted to determine the fate of C.I. Disperse Blue 79, one of the largest production volume dyes, and select biodegradation products in a conventionally operated activated sludge process and an anaerobic sludge digestion system. A pilot study was conducted from November 1987 to February 1989. The equipment operated included two continuous feed pilot-scale wastewater treatment systems, consisting of one control system and one experimental system. Screened, raw municipal wastewater fed to the experimental treatment system was dosed with a target concentration of 5 mg/L of active ingredient in the commercial formulation of C.I. Disperse Blue 79. The control system was fed only the screened, raw municipal waste-water. After acclimation and steady state conditions were reached, samples from each system were analyzed for the dye and related compounds. Volume I of the report presents the results regarding: the affect of the addition of C.I. Disperse Blue 79 on the operation of an activated sludge system and an anaerobic digester; the fate of the dye in the treatment systems; and the detection of any degradation products in the systems. Volume II contains the raw data.