Iron-Containing Modeled Waste as Raw Material for Coagulant Receiving

Svergusova, S. V.; Sapronova, Zh.A.; Svyatchenko, A.V.; Rymarov, Andrey; Фомина, Е. В.

doi:10.1088/1755-1315/272/3/032007

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…It is known that after acidic modification the EFS dust can be used as a coagulator for test wastewaters purification [17][18][19]. At the same time, for the extensive use of this material in producing a reagent for wastewater purification the in-depth research of its physical and chemical properties and the peculiarities of its chemical transformations is needed.…”

Section: Introductionmentioning

confidence: 99%

The iron-containing electric-furnace steelmaking waste: physical and chemical properties and acidic modification

et al. 2019

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The electric furnace steelmaking dust is formed at melting metalized pellets in electric-arc steel-making furnaces and is a largetonnage waste. It contains such elements as Fe, Mg, Al, C, Si, Zn, Mn, Na. The ferrous and ferric iron compounds in the EFS dust are mostly presented with oxides — the compounds, which are poorly soluble in aqueous media and can’t take part in exchange reactions under ordinary conditions. The acid treatment with HCl allows obtaining a coagulating suspension, which can be usedfor wastewater treatment. Besides, there was detected up to 14 % of CaO, both free and in calcium silicates such as CaSiO3 and Ca2SiO4. So, in the process of treatment with EFS dust the formation of polysilicic acids helps increasing the purification efficiency.

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Section: Introductionmentioning

confidence: 99%

The iron-containing electric-furnace steelmaking waste: physical and chemical properties and acidic modification

et al. 2019

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“…Such an approach to the disposal and processing of man-made industrial waste contributes to solving the issues of resource and energy saving, makes it possible to expand the range of manufactured products, increase the raw material base and its diversity [6,7]. In addition, the involvement in the production cycles of abandoned large-tonnage industrial waste will make it possible to release many hectares of land now under dumps and tailings and begin their reclamation and fertility recovery [8][9][10]. The importance of the indicated problem can be judged by the scale of mining and processing of iron ore.…”

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confidence: 99%

Electric steelmaking dust as a raw material for coagulant production

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Sapronova

Zubkova

et al. 2023

PMI

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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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Iron-Containing Modeled Waste as Raw Material for Coagulant Receiving

Cited by 2 publications

References 4 publications

The iron-containing electric-furnace steelmaking waste: physical and chemical properties and acidic modification

The iron-containing electric-furnace steelmaking waste: physical and chemical properties and acidic modification

Electric steelmaking dust as a raw material for coagulant production

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