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Hazardous waste characterization extraction procedures for the analysis of blast-furnace slag from secondary lead smelters

Journal Article · · Environ. Prof.; (United States)
DOI:https://doi.org/10.1002/ep.670050108· OSTI ID:5638008
Slag from the secondary-lead-smelter industry is the solid waste that caused the industry to be selected as one of fifteen priority industries to be surveyed under the Resource Conservation and Recovery Act, RCRA. Before RCRA the slag was a problem because it is a voluminous solid waste that was disposed in landfills. The RCRA criteria under which the slag might be determined to be a hazardous waste were the toxic-metal-concentration limits allowable in the leachate from the Extraction Procedure, EP, Toxicity Test adopted by the USEPA. The EP Toxicity Test is specified in EPA publication SW-846 Test Methods for Evaluating Solid Waste, a manual for determining the hazardousness of solid wastes that was published in 1980. The EP Toxicity Test provides for the subjection of samples to a Structural Integrity Test, SIT, prolonged leaching of the sample in an agitated acetic acid solution, and the analyzing of the leachate for the concentration of eight metals. The Secondary Lead Smelters Association, the technical association of the industry, was concerned that the EP Toxicity Test might over-conservatively determine that the smelter slag is hazardous because the slag contains significant amounts of lead, because lead acetate is one of the most soluble of lead compounds, and because it is extremely unlikely that a lead-smelter-slag monolandfill in the real world will ever be leached by a relatively highly concentrated solution of acetic acid.
Research Organization:
Tuscaloosa Testing Lab., Inc., Tuscaloosa, AL 35403
OSTI ID:
5638008
Journal Information:
Environ. Prof.; (United States), Journal Name: Environ. Prof.; (United States) Vol. 5:1; ISSN EPROD
Country of Publication:
United States
Language:
English