Characterization of steel mill electric-arc furnace dust

SOFILI, T

doi:10.1016/j.jhazmat.2004.02.032

Cited by 216 publications

(98 citation statements)

References 17 publications

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“…The EAFD is a highly dense material, which is compatible with the chemical and mineralogical content 1,2,3 . Figure 2 presents the EAFD size distribution, estimated by free settling and density evaluation in a graduated cylinder.…”

Section: Methodsmentioning

confidence: 99%

“…It is a complex, fine-grained, high-density material containing high amounts of zinc and iron, and significant amounts of calcium, manganese, magnesium, lead, and chromium 1,2,3 . The phase identification of the EAFD samples indicates the presence of complex minerals such franklinite (ZnFe 2 3 . For various reasons, electric-arc furnace technology is currently used in most global steel production worldwide.…”

Section: Introductionmentioning

confidence: 99%

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Stabilization of electric-arc furnace dust in concrete

et al. 2010

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Electric-arc furnace dust (EAFD) is a by-product of steel production and recycling. This fine-grained material contains high amounts of zinc and iron as well as significant amounts of potentially toxic elements such as lead, cadmium and chromium. Therefore, the treatment and stabilization of this industrial residue is necessary. Concrete is a well-known suitable environment for stabilization/solidification of materials which have leachable elements in need of fixation. The effect of the EAFD content on the mechanical and chemical performance of Portland cement concrete is investigated in this paper. The effect of the EAFD content on the setting time of cement slurry was also analyzed. The axial compressive strength of the concrete samples increases with the EAFD addition in the range of 10 to 20 wt. (%) EAFD; also the tensile strength increases with the EAFD addition. An increase in EAFD content significantly increases the setting time of the concrete. The acetic acid leaching and water solubilization tests indicate low mobility of the potentially toxic elements from the EAFD concrete composite. The results of the immersion tests show that the addition of EAFD to the concrete seems to reduce chloride penetration, which may help prevent pitting corrosion in reinforced concrete.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stabilization of electric-arc furnace dust in concrete

et al. 2010

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“…Fe marked steel and iron production emissions. Sofilić et al (2004) Chemical Abundances (%) The position of each triangle shows the uncertainties, which includes measurement errors and source variabilities PM 2.5 from brick production. Metallurgic process release specific metals like Cu, Fe and Zn (Minguillón et al, 2007).…”

Section: Characteristics Of Source Profiles Chemical Compositionmentioning

confidence: 99%

China Source Profile Shared Service (CSPSS): The Chinese PM2.5 Database for Source Profiles

Liu

Zhang

et al. 2017

Aerosol Air Qual. Res.

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China Source Profile Shared Service (CSPSS, www.speciate.org.cn), a new database of emission source profiles for particulate matter (PM), has been developed by researchers from Chinese Research Academy of Environmental Sciences (CRAES). The first release of CSPSS 1.0 consists of comprehensive data from China that reveals the emission profiles of different sources in selected regions. Related source categories include coal-fired boiler, industrial process, fugitive dust, vehicle exhaust emissions, biomass burning and cooking. Compositing methodology and data quality control were applied to create high quality composite profiles of each source category. Statistical measures of correlation coefficient, t-test and and distribution of weighted differences can be used to compare the similarities and differences among individual and composite profiles. In addition, differences between data of SPECIATE and CSPSS were compared. The chemical composition shows special characteristics in different source categories. For example, SO 4 2-and OC mark coal-fired bolier; Ca and Ca 2+ are the most abundant elements in cement production and construction dust emissions; Cl -, K + and K mark biomass burning; several metals such as V, Zn Sn and Pb could be used as tracers for paved road dust while Sr, Ba and Pb marked industrial emissions. The highest abundances of organic matter are observed in cooking emissions. Toxic species such as Cr and As are enriched in PM 2.5 from coal combustion. Distinguished features of source profiles between SPECIATE and CSPSS indicate that the knowledge of local source profiles are needed for further research. This database should better reflect the emission profiles observed in Chinese environment. Sensitivity tests have been conducted to examine the impact of sub-composite source profiles usually used to establish the composite ones. The result shows that the use of sub-composite source profiles of coal combustion dose not impact the apportionment results for biomass burning, but other sources are varying influenced.

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“…Manganese, cobalt, nickel, and chromium also occur isomorphously substituted for Zn in the franklinite. Fe is present (other than in franklinite) mostly as magnetite, Fe 3 O 4 [48,49]. Metallurgical dusts are a more likely target than metallurgical slags from a mobilization/dissolution perspective-although the dusts are composed of recalcitrant Fe and Zn oxides; they have a very small particle size, and thus limitations of solubility are somewhat mitigated.…”

Section: Steel-making Dustsmentioning

confidence: 99%

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

Sapsford

Cleall

Harbottle

2016

J. Sustain. Metall.

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Wastes and the waste repositories in which they reside are becoming targets for resource recovery, both for legacy wastes and for future waste arisings as part of a desire to move toward a circular economy. There is an urgent requirement to explore concepts for practicable technologies that can be applied to these ends. This paper presents a synthesis of concepts concerning in situ technologies (developed from mining and contaminated land remediation industries) that have enormous potential for application to technospheric mining. Furthermore, potential target waste streams and their mineralogy and character are presented along with a discussion concerning lixiviant and metal capture systems that could be applied. Issues of preferential flow (critical to the success of in situ techniques) and how to control it with engineering measures are discussed in detail. It is clear that in situ recovery of metals from anthropogenic ores is a novel technology area that links new sustainable remediation approaches for contaminated materials and technospheric mining for closing material loops, and warrants the further research and development of technologies applicable to major waste streams.

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Characterization of steel mill electric-arc furnace dust

Cited by 216 publications

References 17 publications

Stabilization of electric-arc furnace dust in concrete

Stabilization of electric-arc furnace dust in concrete

China Source Profile Shared Service (CSPSS): The Chinese PM2.5 Database for Source Profiles

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

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