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Blast Furnace Slag, Post-Industrial Waste or …

Blast Furnace Slag is used in the construction industry as a mineral amendment or aggregate. Their use in Earth Construction, due to their post-industrial origin, may be associated with increased levels of potentially …

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Unlocking the potential: A comprehensive review on blast furnace slag and silica analog adsorbents for sustainable …

Blast furnace slag (BFS) is the residue and solid waste from iron–steel metallurgical industry, whose storage not only occupies a large amount of land resources but also causes …

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Synthesis of Micro-Electrolysis Composite Materials from Blast Furnace …

Other applications of BFD have also been studied, including the use of blast furnace slag and glass waste to prepare ed glass-ceramics, and the use as a raw material to prepare geopolymers, black ... and type of pollutants all affect the organic pollutant degradation in the micro-electrolysis system. Then, the MEM prepared under the ...

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Geotechnical and Environmental Assessment of …

Blast furnace slag (BFS) is a particularly interesting anthropogenic material. This material is a byproduct of steel mills, which is deposited in slag dumps at the end of the process [5, 6]. The slag cooling technique impacts the type of generated …

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A Comprehensive Review on the Ground …

Blast-furnace slag and its derivative GGBS are examples of industrial byproducts that are primarily utilized as supplemental cementitious products in cement and concrete production. Its self-hydration feature, in …

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Kinetic studies of Ni(II) ions adsorption from aqueous solutions using

In this work, we used the blast furnace slag for the nickel adsorption in aqueous solution. The physico-chemical characterization showed that the BF slag consists mainly of the silica, lime, and alumina. The specific surface area of the BF slag grains is of the order of 275.8 m2/g. The optimum elimination parameters are the agitation speed 200 rpm, pH 4.5, the …

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Review in application of blast furnace dust in wastewater …

Blast furnace dust (BFD) is the solid powder and particulate matter produced by dust removal process in ironmaking industry. The element composition of BFD is complex, and a direct return to sintering will lead to heavy metal enrichment and blast furnace lining corrosion. In recent years, the application of BFD in wastewater treatment has attracted widespread …

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Environmental risks for application of iron and steel slags in …

Iron and steel slags are smelting wastes, mainly including blast furnace slag (BFS) and steel slag (SS) produced in the iron and steel industry. ... the pollutant elements in the residue slag will migrate into soil and groundwater, being harmful to humans through pollutant accumulation in wa- ter environment and food chain (Zhong et al., 2006). ...

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Removal of SO2 from flue gas using blast furnace dust as an …

To control the SO2 emission and achieve the target of "waste controlled by waste", a novel desulfurization method with blast furnace dust slurry was proposed. The effects of reaction temperature, oxygen concentration, and solid–liquid ratio on SO2 removal efficiency were investigated. The optimal conditions were reaction temperature of 35 ℃, oxygen concentration …

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An Overview of Utilization of Blast Furnace and Steelmaking Slag …

[28] E. Crossin, The greenhouse gas implications of using ground granulated blast furnace slag as a cement substitute, Journal of Cleaner Production, 95 (2015) 101â€"108. [29] D. M. Sadek, Effect of cooling technique of blast furnace slag on the thermal behavior of solid cement bricks, Journal of Cleaner Production, 79 (2014) 134â€"141.

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Typical chemical composition of blast furnace …

The low recycling for reuse of LS slag was mainly attributed to its volume instability i.e. disintegration of slag during cooling due to phase transformation and wide-ranging slag composition [20 ...

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CN117619120A

The invention relates to a method and a system for removing pollutants in slag flushing steam of blast furnace, which can realize ultralow emission, and adopts a method of leading steam out from the lower part of a slag exhaust drum to a separate deacidification tower, neutralizing and absorbing acidic pollutants in the slag flushing steam by using spray alkali liquor, adjusting the …

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Mechanical properties and hydration behaviour of …

Using the characteristic of it, this study combined it with ground granulated blast furnace slag (GGBFS) to produce an ecofriendly cementitious material (CGL) without cement. At the CFBFA/GGBFS ratio of 3:2, the lime content of 20 wt% and the water–solid ratio of 0.45, the unconfined compressive strength of CGL mortar could achieve 33.44 MPa ...

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Use of blast furnace slag in cementitious materials for …

The composition of the blast furnace slag changes depending on the ores, the type of fuel used and impurities in the coke, when it is used, among other factors (Oner and Akyuz 2007). Slag from industries that use charcoal-fueled blast furnaces generally produce acidic slag while slag from coke-fired furnaces generate basic slag.

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Ferrous and non-ferrous metals: pollution inventory reporting

sulfur dioxide (SO 2), from sinter plant, hot blast stoves, arc furnace charging, melting and refining, slag processing, coke oven under-firing, ammonia incinerator tail gas, blast furnace cast ...

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Engineering and Life Cycle Assessment (LCA) of …

This study aims to investigate the preparation of zeolite-based geopolymer composites incorporating blast furnace slag at various temperatures and varying amounts of blast furnace slag as potential sustainable building and …

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Activation of ultra-fine steel slag and ground granulated blast furnace …

As the steel slag (SS) doping gradually increases to replace ground granulated blast furnace slag (GGBFS), the number of Si-O and Al-O tetrahedral units in the glassy phase of the GGBFS decreases. This results in a slower pozzolanic reaction, a lower dissolution rate of calcium hydroxide (CH) in the calcium carbide slag (CS), and an increase in ...

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Physical and Chemical Characteristics of Blast …

To enhance general understanding of the physical and chemical characteristics of this material, slag samples from 58 active mills with blast furnaces, basic oxygen furnaces, and/or electric arc furnaces were examined.

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Characteristics of Red Mud–Blast Furnace Slag Composite …

In this work, red mud (RM) and blast furnace slag (BFS) were used to prepare a red mud–blast furnace slag composite low-pH cementitious material (RM-BFS). The effect of urease-producing microorganisms (UPM) on the pH value and mechanical strength of the RM-BFS was systematically investigated, and the mechanism analyzed by combining X-ray ...

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Novel resource utilization of fly ash and blast furnace slag …

In this work, AACM and FAACM were prepared by using blast furnace slag (BFS) and fly ash (FA) as raw materials to solve the problem of large accumulations of solid waste. According to relevant researches, BFS and FA are not classified as hazardous waste, and BFS/FA-based alkali-activated cementitious materials have no risk of polluting the ...

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Dangerous Emissions in Blast Furnace Operations

Dangerous emissions of SO 2 and H 2 S are found in molten slag granulation sites; NOx are found from the hot stoves; heavy metals (mainly Zn and Pb) are found in the sludge …

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Blast furnace cast house pollutant suppression

Method and apparatus for suppressing formation of pollutants in a blast furnace casting system by occluding oxidizing gases, including ambient air, from the molten iron and slag discharged from the furnace. US4357003A - Blast furnace cast house pollutant suppression - Google Patents ...

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Adsorptive Removal of Five Heavy Metals From Water Using Blast Furnace …

Heavy metals can be serious pollutants of natural water bodies causing health risks to humans and aquatic organisms. The purpose of this study was to investigate the removal of five heavy metals from water by adsorption onto an iron industry blast furnace slag waste (point of zero charge (PZC) pH 6.0; main constituents, Ca and Fe) and a coal industry fly ash waste (PZC …

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Modeling Tetracycline Adsorption onto Blast Furnace Slag …

Ground granulated blast furnace slag (GGBS) is a primary industrial waste product of iron production, and its improper disposal has been a serious environmental problem. This study aims to modify the GGBS using oxalic acid (GGBS-Ox) for the adsorption of tetracycline (TC) from an aqueous solution. GGBS-Ox was synthesized and characterized via FTIR, XRD …

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Waste heat recovery of blast furnace slag in moving bed: …

Blast furnace slag (BFS) is one of metallurgical solid waste (Peng et al., 2018) ... Compared with the wet method, the dry method can save much water, recover high-quality waste heat resources, and avoid pollutant discharge and …

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Surface microstructure of magnetic blast furnace dust and …

The steel industry is crucial for the economy and defense of a country, supporting its infrastructure development and technological advancement [1].Blast furnace (BF) steelmaking accounts for over 70 % of global iron (Fe) production but also generates substantial solid waste, including blast furnace dust (BFD) from the gas purification process [2], [3].

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Eco-friendly and cost-effective adsorbent derived from blast furnace

The current investigation concerns with preparation eco-friendly and cost-effective adsorbent (mesoporous silica nanoparticles (SBL)) based on black liquor (BL) containing lignin derived from sugarcane bagasse and combining it with sodium silicate derived from blast furnace slag (BFS) for thorium ad …

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Synthesis of Micro-Electrolysis Composite Materials from Blast Furnace …

Keywords: blast furnace dust, micro-electrolysis, organic pollutants, degradation. 1. Introduction. Blast furnace dust (BFD) is discharged with blast furnace flue gas during the iron and steel smelting process, and is collected by dry bag dust removal. ... including the use of blast furnace slag and glass waste to prepare ed glass-ceramics ...

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Solidification/stabilization of composite heavy metals using …

Geopolymers derived from solid waste can effectively remediate heavy metal polluted sites, achieving the ideal fusion of solid waste utilization and environmental remediation. Red mud and blast furnace slag were used to develop a geopolymer for the remediation of composite heavy metal-contaminated soils, focusing on Cd(II)-, Pb(II)-, Cu(II)-, and Zn(II) …

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Mechanical properties and environmental characteristics of …

The high content of heavy metals in electrolytic manganese residue (EMR) makes it difficult to utilize in engineering, and direct disposal can pose a threat to the environment. This study uses EMR as a raw material combined with steel slag (SS) and blast furnace slag (GGBS) to prepare electrolytic manganese residue-based cementitious material (ESGM) under the …