A review on the characteristics, formation mechanisms and treatment processes of Cr (VI)-containing pyrometallurgical wastes

作者：Ma G^*; Garbers Craig A M

来源：Journal of the South African Institute of Mining and Metallurgy, 2006, 106(11): 753-763.

• Cr(VI)
• pyrometallurgical wastes
• dust
• filter cake
• stainless steel
• ferrochrome
• waste management
• stabilization

Pyrometallurgical wastes, such as stainless steel plant dust, ferrochrome plant dust and filter cake from the waste acid treatment facility of the stainless steel pickling plant, contain Cr (VI) that can leach into the groundwater when stockpiled or land filled. These wastes are considered to be hazardous materials and therefore need to be treated. Recycling, recovery and solidification/stabilization processes can be used to treat these wastes.
The characteristics and the formation mechanisms of electric furnace dusts and filter cake are summarized in this paper. it also reviews the present treatment processes of these wastes, and highlights the stabilization/solidification processes for the treatment of Cr(VI)-containing pyrometallurgical dusts.

• 出版日期2006-11
• 单位武汉科技大学