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Recyclying of Dust from Electric Arc Funances�An Experimental Evaluation

by E. Radha Krishnan, PEI Associates Inc, Cincinnati, OH, USA,
William F. Kemner, PEI Associates Inc, Cincinnati, OH, USA,
Gopal Annamraju, PEI Associates Inc, Cincinnati, OH, USA,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

Each year the electric arc steelmaking industry generates approximately 650,000 tons of dusts containing valuable metallic resources such as iron, zinc, lead, and chromium. EAF dust is currently listed as a hazardous waste because of the leachability of its toxic constituents, e. g. , lead (Pb), cadmium (Cd), hexavalent chromium (Cr** plus **6). Pelletizing and recycling to the furnaces is a logical alternative for managing EAF dust. The main advantages of the recycling process are its low capital cost, relative insensitivity to EAF dust composition, and applicability to both mini-mills and large mills. The article described the experimental pilot plant program on palletizing the dust and recycling it to the furnace.

Subject Headings: Recycling | Dust | Steel | Electronic wastes | Lead (chemical) | Hazardous wastes | Disasters and hazards

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