Treatment of aqueous metal- and cyanide-bearing hazardous wastes

Technical Report · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:5879976

Grosse, D W

With the reauthorization of the Resource Conservation and Recovery Act (RCRA) and the concurrent restrictions on land disposal of hazardous wastes, the U.S. Environmental Protection Agency is assessing technologies that can be substituted for, or precursors to land disposal. This paper describes the research work being conducted at the EPA's Test and Evaluation Facility concerning treatment of metal-finishing hazardous wastewater. A series of various technological units have been designed and fabricated to determine the optimum combination of the units for the best treatment of any given wastes. These units are: Alkaline Chlorination of Cyanide, Chromium Reduction, Neutralization/Precipitation, Flocculation and Settling, Mixed-Media Filtration, Activated Carbon Adsorption, and Ion Exchange. Plans for future work utilizing additional technological units is also presented. Results of this work will be used to assess alternative treatment technologies for aqueous metal- and cyanide-bearing hazardous wastes.

• Research Organization: Environmental Protection Agency, Cincinnati, OH (USA). Hazardous Waste Engineering Research Lab.
• OSTI ID: 5879976
• Report Number(s): PB-88-106398/XAB; EPA-600/D-87/253
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CONTROL
CYANIDES
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
INDUSTRY
LAWS
LIQUID WASTES
MANAGEMENT
MATERIALS
METAL INDUSTRY
OXYGEN COMPOUNDS
POLLUTION CONTROL
PROCESSING
RESOURCE RECOVERY ACTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER POLLUTION CONTROL
WATER TREATMENT