Exposure characterization and risk assessment of ultrafine
Exposure characterization and risk assessment of ultrafine particles from the blast furnace process in a steelmaking plant J Occup Health. 2021 Jan;63 ... and presented as lump-like agglomerates. The metal elements (Al and Pt) in the ultrafine particles originated from slag and iron ore. The risk level of the ultrafine particles was high ...
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A Review of Circular Economy Prospects for Stainless Steelmaking Slags
Abstract The world of stainless steel production was 52 Mt in 2019, and the annual amount of slags including electric furnace, AOD converter, ladle, and casting tundish, was estimated at 15–17 Mt. Nowadays, only a minor fraction of slags from stainless steel production is utilized and a major part goes to landfilling. These slags contain high …
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Environmental risk assessment of steel-making slags and …
DOI: 10.1016/j.jhazmat.2018.04.023 Corpus ID: 4977165; Environmental risk assessment of steel-making slags and the potential use of LD slag in mitigating methane emissions and the grain arsenic level in rice (Oryza sativa L.).
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Environmental risk assessment of steel-making slags and …
Request PDF | Environmental risk assessment of steel-making slags and the potential use of LD slag in mitigating methane emissions and the grain arsenic level in rice ( Oryza sativa L.) | Over the ...
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[PDF] Comparative life cycle assessment (LCA) of accelerated
Carbon capture, utilization, and storage (CCUS) is one of the most prominent emerging technologies for mitigating global climate change. In this study, a comparative evaluation for CO2 fixation by carbonation of steelmaking slag was performed by life cycle assessment (LCA) using Umberto 5.5.4 software, with the Swiss Eco-invent 2.2 …
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Environmental benefit assessment of steel slag utilization …
This article comprehensively reviews the environmental performance of steel slag utilization, especially emphasizing quantitative evaluation using life cycle …
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Ammonium salt-based steelmaking slag carbonation: …
A mineral carbonation method based on steelmaking slags and ammonium salt solutions has been found to have economical and CO 2 emission reduction potential. Although the aqueous solution of ammonium salt can be recycled, some of the solvent is likely to escape in a form of ammonia vapor within the outgoing gas flow during the …
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Utilization possibilities of steel slag as backfill material in …
1 Altmetric. Metrics. Abstract. The aim of this study is to investigate the utilization possibilities of steel slags, basic oxygen furnace (BOF) and electric arc …
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System assessment of recycling of steel slag in converter steelmaking
Fig. 2 shows the representative compositions of dephosphorization agents while using different steel slags to replace a certain amount of dephosphorization agent. As steel slag is a multi-component slag, the amount of the required to be added must be larger than the substitution ratio. It can be seen from Fig. 2 that the proportion of steel slag is …
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Comparative Life Cycle Assessment (LCA) of Accelerated …
ABSTRACTCarbon capture, utilization, and storage (CCUS) is one of the most prominent emerging technologies for mitigating global climate change. In this study, a comparative evaluation for CO2 fixation by carbonation of steelmaking slag was performed by life cycle assessment (LCA) using Umberto 5.5.4 software, with the Swiss Eco-invent …
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The potential utilization of slag generated from iron- and steelmaking …
Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during the …
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(PDF) Environmental risk assessment of steel …
Especially in densely populated countries like Bangladesh, the sustainable use of waste is very important. In this paper, we try to investigate the alternate uses of steelmaking slag as a soil conditioner which produced …
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Preliminary assessment of a method utilizing carbon dioxide …
Steelmaking slags such as steel converter slag dissolved calcium efficiently and selectively. After removal of the and blast furnace slag have a high calcium content and are there- slag residue, carbon dioxide was introduced into these solutions fore suitable raw material for carbonation.
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Environmental risk assessment of steel-making slags and the …
Soil Pollutants. Over the past decades, with increasing steel manufacturing, the huge amount of by-products (slags) generated need to be reused in an efficient way …
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Environmental risk assessment of steel-making slags and …
Chemical characteristics and environmental risk assessment of steel slags. Four different kinds of slags i.e., Blast furnace slag (BF), Linz-Donawitz converter slag (LD) Electric arc furnace slag (EAF), and refined slag or ladle furnace slag (LF) were obtained from POSCO, Republic of Korea. The slags were air-dried and made into powder form.
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Front Matter | Health Risk Considerations for the Use of …
2-2 Distribution of EAF steelmaking facilities and slag processing facilities in the United States. 3-1 Gravel-size steel slag particle with a lime pocket. 3-2a Concentrations of chromium (Cr) and manganese ... 7-2 Hazard ranking results using the mean concentrations from the risk assessment data sets and EPA soil RSLs increased by a …
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Preliminary assessment of a method utilizing carbon dioxide …
Semantic Scholar extracted view of "Preliminary assessment of a method utilizing carbon dioxide and steelmaking slags to produce precipitated calcium carbonate" by S. Eloneva et al. ... Carbon dioxide mineral sequestration with steelmaking slag is a promising method for reducing carbon dioxide in a large-scale setting. Existing calcium …
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(PDF) Environmental risk assessment of steel …
Environmental risk assessment of steel-making slags and the potential use of LD slag in mitigating methane emissions and the grain arsenic level in rice (Oryza sativa L ... [BRMA, 2014].Steelmaking slag's …
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Environmental benefit assessment of steel slag utilization …
The basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag, and ladle furnace (LF) slag are three major types of SS produced in the steelmaking processes. As drawn in Fig. 2, BOF slag and EAF slag are both produced during the first refinement of steel (Humbert and Castro-Gomes, 2019).
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Front Matter | Health Risk Considerations for the Use of …
Health Risk Considerations for the Use of Unencapsulated Steel Slag (2023) Chapter: Front Matter. Page i. Suggested Citation: "Front Matter." National Academies of …
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Introduction
Another slag that is common in steelmaking is a slag that is purposely added to the top of the container used to transport liquid steel (a ladle), and this is termed a ladle slag. ... and manganese as selected …
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Steel slag amendment impacts on soil microbial communities …
Physicochemical characteristics of LD slag. The major elements of the Linz-Donawitz converter slag (LD slag) were Ca, Fe, Al, Si and Mn, while the minor elements were As, Ba, Cd, Cr, Pb, Se, Ag ...
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Production, characterisation, utilisation, and beneficial soil
The risk assessment of slag utilisation needs to focus on two aspects: heavy-metal content of slag and animal toxicity resulting from slag application to soil. ... The gas quenching granulation process, cooling rate of about 600℃/s, achieves efficient treatment of steelmaking slag while effectively reducing the free CaO content, which is …
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Environmental benefit assessment of steel slag utilization …
Semantic Scholar extracted view of "Environmental benefit assessment of steel slag utilization and carbonation: A systematic review." by Lufan Li et al. Skip to search form ... Steel slag is a solid waste product generated during the carbonation stage of steelmaking. It has high levels of heavy metals and substantial amounts of free calcium …
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Ammonium salt‐based steelmaking slag carbonation: Precipitation of
Steelmaking slag is a good alternative material for the fixation of CO2 gas as precipitated calcium carbonate (PCC) that are of used in many industrial applications such as paint, plastic, medical ...
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Recycling of ironmaking and steelmaking slags in Japan and …
The mass production of steel is inevitably accompanied by large quantities of slags. The treatment of ironmaking and steelmaking slags is a great challenge in the sustainable development of the steel industry. Japan and China are two major steel producing countries that have placed a large emphasis on developing new technologies …
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System assessment of recycling of steel slag in converter steelmaking
Diao et al. [6] did a systematic assessment of recycling of steel slag in converter steelmaking and indicated that the optimal proportion of steel slag in dephosphorization agent was 20%. Moreover, steel slag can also be used for wastewater treatment [9-11]. Show abstract.
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The recycling and reuse of steelmaking slags — A review
The transformation of steelmaking slag into a strong structural material through high gravity carbonation (Chang et al., 2012). Now known as the carbstone method (Quaghebeur et al., 2015), it consists of three steps: pre-treatment, shaping and curing. The BOS slag is first homogenized into a powder and then mixed with the appropriate …
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Electric Arc Furnace Steelmaking and Slag Formation, …
The growth of electric arc furnace (EAF) steelmaking in North America has occurred mainly in the past 40 years due to low electricity prices, an abundance of steel scrap (especially near large population centers), and the development of mini and macro steel mills based on metal recycling. Scrap availability and price has made steel …
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The recycling and reuse of steelmaking slags — A review
During the blast furnace process limestone (CaCO 3) flux is added, to collect the waste products produced: silica (SiO 2), phosphorus pentoxide (P 2 O 5), calcium sulfide (CaS), magnesia (MgO) and alumina (Al 2 O 3).This forms blast furnace (BF) slag, which floats on top of the surface of the hot metal (Peters, 1982).The blast furnace is …
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