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REVIEW OF TREATMENT FOR METAL HAZARDOUS WASTESTREAMS
Citation:
Grosse, D. REVIEW OF TREATMENT FOR METAL HAZARDOUS WASTESTREAMS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/088 (NTIS PB91191163).
Description:
This publication will examine some of the practices being used or considered for use at on-site or commercial hazardous waste treatment, storage and disposal facilities (TSDF). ptions for managing hazardous wastes containing heavy metals and/or cyanide compounds involve conventional treatment processes, recycle/reuse applications and waste minimization. ome of the technologies to be reviewed in this section include: precipitation applications such as hydroxide (e.g. lime, magnesium and iron oxyhydroxide), sulfide and carbonate systems; reduction techniques employing chromium, mercury and selenium reducing agents; adsorption/selection techniques using activated carbon ion exchange and hydrous solids; stabilization/fixation with discussion on applications, interferences and landfill design; cyanide destruction, including chemical oxidation (e.g. alkaline chlorination, ozonation/photolysis), electrolytic decomposition and incineration; and pollution prevention measures such as source reduction, recycling and reuse. ach of these options will be described in terms of effectiveness of treatment in removing the hazardous constituents of interest and characterization of the generated treatment residuals or the case of waste minimization practices, the degree to-which the constituents of concern are eliminated at the point of waste generation.