Characterization and thermal treatment of flue dust generated during iron and steel manufacturing

The flue dust generated during steelmaking contains Zn (6 wt.%) and Pb (1 wt.%) originating from the recycling of galvanized scrap metal. These contaminants render the flue dust both environmentally hazardous and unsuitable for internal recycling. The physical and chemical characteristics of different types of dust were examined in this study. The distribution and the associations of these contaminants depended on the type of flue dust. The selective removal of Zn and Pb was accomplished through thermal treatment using a Cl...