Design of a Novel Fertilizer Made of Steelmaking Slag Using
Silicate fertilizer is a popular fertilizer made from blast furnace slag, which is currently applied to paddy fields under the brand name of "keikaru." Its production …
Assessment of Electric Arc Furnace (EAF) Steel Slag Waste's …
Steel slag is one of the most common waste products from the steelmaking industry. Conventional methods of slag disposal can cause negative impacts on humans and the environment. In this paper, the process of steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed. Since steel is …
Improving methane mitigating functionality of blast furnace slag by
Abstract. Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as main components and iron and manganese as electron acceptors. This amendment improves soil productivity and mitigates methane (CH 4) emissions.
Improving methane mitigating functionality of blast furnace slag by
Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as main …
Improving methane mitigating functionality of blast furnace slag by
Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as …
Mechanism of slag-based silicate fertilizer suppressing methane
The addition of electron acceptors to boost soil microbes competitive to methanogens could minimize methane (CH 4) emissions from paddy soils.To study the microbiological mechanisms underlying the suppression of CH 4 emissions, silicate fertilizer made from blast furnace slag that contains electron acceptors, such as Fe, was applied …
Cropping With Slag to Address Soil, Environment, and …
Notably, steel-making slag and blast furnace slag have been extensively utilized as raw materials for fertilizer production, mostly in Japan, …
Slag recycling
In 2016, the figures were still 24.6 Mta of blast furnace slag and 18.4 Mta of steelworks slag. The production of blast furnace slag has thus fallen by 15.9 % in the past two years, while that of steelworks slag has dropped by 11.4 %. ... while 4.5 % were used in hydraulic engineering. A relatively large amount of 13.1 % was used as fertilizer ...
ESTEP Workshop REUSSTEEL Slag as a fertilizer with …
the fine fraction (0 - 3 mm) of self disintegrated slags are used. slags is used in humid regions as a lime fertilizer to stabilize the pH in soils and to maintain soil fertility. constituent (CaO) 35 – 50 Correcting soil acidity and essentially plant nutrient. Mainly in …
Review of pellets and blast furnace slag research progress: the …
Afterwards, as a by-product of blast furnace production, slag can be regarded as a secondary resource [13,14]. Its terminal state is widely used as a low value …
Effects of blast furnace slag on the immobilization, plant uptake …
BFS effectively increases rice production and results in Cd levels safe for consumption. ... Blast furnace slag (BFS) is a by-product and waste material generated massively in iron plants. ... K fertilizer were applied in each container as 0.15, 0.1, and 0.15 g·kg −1, respectively. The amount of fertilizer applied is calculated as pure ...
Full article: Comprehensive utilisation of blast furnace slag
Comprehensive utilisation of blast furnace slag. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [1]. In 2017, the metallurgical slag output of iron and steel enterprises in China reached more than 440 million tons ...
Radioactivity of blast-furnace slags from metallurgical
An assessment of the radiation hazard when using blast furnace slag cement with an increased level of radioactivity in housing construction was carried out . The leaching of NRN from alkali-activated materials based on ground granulated blast-furnace slag and phosphogypsum was studied . 238 U, 226 Ra, 210 Pb and 228 Ra are virtually …
3 Iron Unit Recycling
Blast Furnace Slag In the production of hot metal, the blast furnace is charged with iron-bearing materials (iron ore, sinter, pellets, etc.), flux (limestone Figure 3-6. Ironmaking Iron Units, U.S. 2000 and/or dolomite), and fuel (coke). (SRI 2001)Two products are obtained from the bottom of the blast furnace: molten iron and slag.
Frontiers | Study on the relationship between the particle size
This study adopted the Rosin-Rammler-Bennett (RRB) equation to model the particle size distribution (PSD) of ground granulated blast furnace slag (GGBFS) and prepared four groups of GGBFS powders with a characteristic particle size De = 8–20 μm and uniformity coefficient n = 0.9–1.4 by means of grading and combining blast furnace …
Design of a Novel Fertilizer Made of Steelmaking Slag Using
Silicate fertilizer is a popular fertilizer made from blast furnace slag, which is currently applied to paddy fields under the brand name of "keikaru." Its production reached a level of approximately 1.3 million tons in 1968 and then it was dramatically reduced to only 150,000 tons per year in the 1970s [ 2 ].
The Comprehensive Utilization of Steel Slag in Agricultural Soils
This paper first illustrates the production processes, properties, and applications of steel slag, and then summarizes the key findings of the environmental benefits for steel slag...
Improving methane mitigating functionality of blast furnace slag by
Abstract. Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and …
Environmental and Geotechnical Assessment of the Steel Slags …
When SSRS compares with ground granulated blast furnace slag (GGBFS) from iron making, steel slag contains toxic ingredients such as nickel, cadmium, chromium and strontium. ... to road construction as an aggregate in concrete production or fertilizer production and after relevant treatments as a hydraulic binder [26,27], ...
Utilization of Steel Slag as a Soil Amendment and Mineral Fertilizer …
is 11%, it is used in cement production, hydraulic structures, and fertilizer production by 3 to 5% (Table . 2). ... Interac tion of blast-furnace slag with heavy metal ions in water .
Uses of Blast Furnace Slag as Complex Fertilizer
Blast-furnace slags and steelworks slags are secondary products of steel production. They are processed into cement, materials for road and vehicle engineering, and fertilizers. The properties of ...
Slag: From By-product to Valuable Construction Material
The goals of slag recycling efforts are both environmental and economic. Reprocessed slag can replace other more costly ingredients used to make building materials. Recycling slag minimizes waste and disposal costs, reduces energy use, extends furnace life, and lowers the amount of additives needed to make slag.
Life cycle assessment of a novel blast furnace slag utilization system
A novel system was proposed to realize the high value-added utilization of blast furnace slag. In this study, a comprehensive analysis concerning energy consumption, environmental impact and economic cost of the system was conducted based on the perspective of life cycle. Considering the serious situation of global warming, CO2 …
Steel Slag Utilization — Overview in Indian Perspective.
Process of slag Generation (epa.gov) During the process of reducing iron ore through coke in a blast furnace, blast furnace slag is generated while steel making slag is generated in the process of ...
Effects of blast furnace slag on the immobilization, plant uptake …
Abstract. The potential toxicity of Cd to soil and rice plant severely threaten human health. This study was conducted to investigate the remediation effects of blast …
Creating new value of blast furnace slag as soil amendment to …
Blast furnace slag (BFS), a by-product of iron making, has been utilized as silicate fertilizer in Korean and Japanese rice paddy. Silicate fertilizer, which has high contents of active iron and manganese as electron acceptor, was newly known to suppress methane (CH 4) emission in flooded rice paddies, but the effect of its long-term …
An Overview of Use of Linz-Donawitz (LD) Steel Slag in Agriculture
Physical and chemical and mineralogical characteristics of LD steel slag. It has been found that the density of LD slag lies between 3.3-3.6g/cm. 3 Due to its high Fe content, steel slag looks in appearance a loose collection, and appears hard and wear resistant. The grindability index of steel slag is 0.7, in contrast with the value of 0.96 and 1.0 for blast …
An Overview of Utilization of Steel Slag
The grindability index of steel slag is 0.7, in contrast with the value of 0.96 and 1.0 for blast furnae slag and standard sand respectively [4].The steel slag mainly consists of SiO 2 ǃCaOǃFe 2 O 3 ǃFeOǃAl 2 O 3 ǃMgOǃMnOǃP 2 O 5 [5].The chemical component of steel slag varies with the furnace type, steel grades and ...
CO2 Mineralization and Utilization using Steel Slag for …
The worldwide crude steel production in 2016 was approximately 1628 Mt, ... The CO 2 reduction potential contributed by carbon mineralization of steel slags, including blast furnace slag, ...
Recent trends in slag management & utilization in the …
The quantity of steel slag produced has increased Materials 2022, 15, 3079 2 of 20 from 35.35 million tonne (out of 101.4 million tonne of steel production) in 2017-2018 to 53 million tonne (out ...