Study Regarding the Evolution of Solid Waste Generation during Steelmaking

Dana Adriana Ilutiu Varvara, Elena Maria Pica, Liviu Brandusan

Full text: http://journals.usamvcj.ro/agriculture

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Abstract

This paper describes problems regarding the evolution of solid wastes generated
during steelmaking in the electric arc furnace. These solid wastes are slags and dusts.
Approximately 1–2% of the charge is converted into dust and 10 – 15% is converted
into slag (Erdem et al., 2005). Nearly 12 million tons of steel slag is produced annually in the
Europe. Is presented the evolution of crude steel production in worldwide and minimum and maximum quantities of solid waste from steelmaking. The solid waste quantity and chemical composition varies according to the quality of the charge and the type of steel elaborated (Iluţiu – Varvara, 2007).
This dust is considered as a toxic waste due to its content of heavy metals. It is
estimated that the world-wide total production of EAF dust could be as high as several million
tones, all of which must be treated, recycled or land-filled (Sofilic et al., 2004).

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