Electric steelmaking dust as a raw material for coagulant production

IF 2.4 Q2 MINING & MINERAL PROCESSING Journal of Mining Institute Pub Date : 2023-03-22 DOI:10.31897/pmi.2023.23
S. Sverguzova, Zh.A. Sapronova, O. Zubkova, A. Svyatchenko, Karina Shaikhieva, Y. Voronina
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引用次数: 1

Abstract

The paper describes the issues associated with waste generated during steel production and processing, in particular the dust from electric arc furnaces (EAF). An effective solution for the disposal of such waste is its involvement in processing to obtain valuable products. This paper studies the physical and chemical properties of EAF dust produced during the smelting of metallized pellets and captured by the dust and gas cleaning system of the steel-smelting shop at the Oskol Electrometallurgical Combine, Belgorod Region. The results obtained in the study of the chemical and disperse compositions of dust, the microstructure of the surface made it possible to propose the use of dust as a raw material for coagulant production. The conditions of acid-thermal treatment of dust are determined, contributing to the partial dissolution of iron (II), (III), and aluminium compounds, which ensure the coagulation processes during wastewater treatment. Model solutions show high efficiency (> 95 %) of water treatment from heavy metal ions by modified EAF dust.
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电炉炼钢粉尘作为混凝剂生产的原料
本文介绍了钢铁生产和加工过程中产生的废物,特别是电弧炉产生的粉尘的相关问题。处理这类废物的有效办法是使其参与加工,以获得有价值的产品。本文研究了别尔哥罗德地区Oskol电冶联合公司炼钢车间粉尘和气体净化系统捕获的金属化球团冶炼过程中产生的电炉粉尘的物理化学性质。通过对粉尘的化学成分、分散成分、表面微观结构的研究,提出了利用粉尘作为混凝剂生产原料的设想。确定了粉尘酸热处理的条件,有助于铁(II), (III)和铝化合物的部分溶解,这保证了废水处理过程中的混凝过程。模型溶液表明,改性电炉粉尘对重金属离子的水处理效率高(> 95%)。
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来源期刊
Journal of Mining Institute
Journal of Mining Institute MINING & MINERAL PROCESSING-
CiteScore
7.50
自引率
25.00%
发文量
62
审稿时长
8 weeks
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