||Aerobic and Anaerobic Treatment of C.I. Disperse Blue 79. Volume 1.
Gardner, D. A.;
Holdsworth, T. J.;
Shaul, G. M.;
Dostal, K. A.;
Betowski, L. D.;
||Radian Corp., Milwaukee, WI.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Waste water treatment;
C.I. Disperse Blue 79;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
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.