Biological wastewater treatment of azo dyes
- Environmental Protection Agency, Cincinnati, OH (USA)
EPA Water Engineering Research Laboratory, Office of Research and Development, undertook a study to determine the fate of specific water soluble azo dye compounds in the activated sludge process (ASP). The study was approached by dosing the feed to the pilot ASP systems with various water soluble azo dyes and by monitoring each dye compound through the system, analyzing both liquid and sludge samples. The fate of the parent dye compound was assessed via mass balance calculations. These data could determine if the compound was removed by adsorption, apparent biodegradation, or not removed at all. The paper presents results for 18 dye compounds tested from June 1985 through August 1987. The study was conducted at EPAs Test and Evaluation Facility in Cincinnati, Ohio. The objective of this study was to determine the partitioning of water soluble azo dyes in the ASP.
- OSTI ID:
- 7267059
- Report Number(s):
- CONF-8909234-; CODEN: ACWCA
- Journal Information:
- Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA), Vol. 28:2; Conference: Advisory group meeting on nuclear data for radiation damage assessment and related safety aspects, Vienna (Austria), 19-22 Sep 1989; ISSN 0099-7293
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AZO DYES
REMOVAL
ACTIVATED SLUDGE PROCESS
ADSORPTION
BIODEGRADATION
CHEMICAL REACTIONS
WASTE WATER
WATER POLLUTION
AZO COMPOUNDS
DECOMPOSITION
DYES
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
SORPTION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology