Therefore, the use of steel slag as agricultural lime material and/or mineral fertilizer is of great importance (Hemalatha 2013; Wen et al. 2020). The slag formed as a result of the steelmaking ...
(DOI: 10.15832/ankutbd.1197239) The gradual increase in industrial wastes allowed the utilization of these wastes in different areas. Steel slag, one of the industrial wastes, is formed during the reduction of molten crude iron to molten crude steel in basic oxygen furnaces (BOF) or scrap to molten crude steel in electric arc furnaces (EAF) and …
Accelerants can effectively enhance the performance of anaerobic digestion (AD) system. The effects of optimized steel slag as accelerant in the AD of cow manure and the fertility utilization of the digestate were investigated. Results show that all steel slags collected from different iron and stee …
This represents an opportunity for both the steel and fertilizer industries to promote natural resources ... V. Colla, "Use of BOF steel slag in agriculture: column test evaluation of effects on alkaline soils and drainage water", Proceeding of The 7th Conference on Sustainable Development of Energy, Water and Environment Systems, …
This chapter intends to review the state of the art related to the use in agriculture of steel slag, mainly coming from BOF process using basically Linz-Donawitz (LD) converter, in ... slags are mainly used for road construction, hydraulic engineering, and fertilizer, BF slag is mainly used for cement production 2. 1 Source: European Slag ...
Keywords: Steel slag, Basic oxygen furnace (BOF), Electric arc furnace (EAF), Induction furnace (IF), Soil amendment, Mineral fertilizer 1. Introduction The use of steel slag in the remediation of acidic soils and the improvement of plant nutrient availability of infertile soils is a cost-effective and environmentally friendly approach that ...
Use of Slag in Fertilizer Industries . In India the efforts have been made in Tata Steel to use this slag as a soil conditioner in the . paddy fields, tea gardens etc. after grinding the same to ...
Steel slag has been widely used as amendment and silicon fertilizer to alleviate the mobility and bioavailability of heavy metals in soil. The objective of this study was to evaluate the influence of particle size, composition, and application rate of slag on metal immobilization in acidic soil, metals uptake by rice and rice growth.
Steel mill services firm Harsco Environmental has been producing and selling AgroSilicio, a low-carbon fertilizer made from steel slag, in Brazil in cooperation with the government of a Brazilian state. Harsco, a division of Philadelphia-based Enviri Corp., has been invited by the Brazilian state of Minas Gerais to make a presentation on the ...
Besides the use of steel slag for making wearing courses, mixtures of BOS- or EAF-slags, air-cooled blast-furnace slag and granulated blast- furnace slag or PFA achieve useful properties as a result of hydraulic binding. ... 17% for metallurgical use; 16% as fertilizer; and 10% as bulk material. With respect to EAF-slag, figures are ...
Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded. However, slag could be used to treat acid soils or acid mine drainage. Doing so would both offset the cost of restoring abandoned mine areas, as well as decrease steel manufacturers' current waste footprint.
Steelmaking slag includes the following: slag produced in the hot-metal pretreatment processes (desiliconization, dephosphoriza-tion, desulfurization, etc.), slag flowing out …
The steel slag fertilizer was applied as the basic fertilizer in each season before rice transplanting. First, steel slag fertilizer was incorporated well with 5.0 kg soil in each plastic pot. These pots were incubated for 30 days after addition of slags and watered daily with distilled water to maintain 2–3 cm submergence throughout the ...
Steel slag is a large discharge of industrial waste slag. Chinese effective utilization rate of steel slag is only 20%, causing great harm to the environment and economy.
In recent years, a number of studies have reported the beneficial effects of slag and/or slag-based fertilizer application to improve soil quality and plant …
Paddy field, being a man-made wetland, is recognized as one of the major sources of global methane (CH 4) emission.Since China has the second-largest area of rice cultivation in the world, it is important to develop valid and reliable strategies to reduce CH 4 emission and sustain rice productivity in Chinese paddy fields. In this study, we applied …
Second Set of Experiments. Figure 13a (90% steel slag and 10% commercial fertilizer) and 13 (b) ( steel slag) are shown the growth of peas plant. For 2nd set of experiments, only peas plant was chosen. After conducting 1st set of experiments, it was observed that the growth of chickpea plants is quite slow with …
In general, use steel slag accelerant in the AD system is an effective strategy not only for realizing the resource utilization but also for achieving hazard-free treatment of waste (steel slag and cow manure). 4. Conclusions. The use of steel slag accelerants in AD systems considerably improve biogas production and COD degradation rate.
Steel slag containing a small amount of harmful heavy metal elements such as Cr 6+, Pb 2+ is of the main factors hindering the application of steel slag in agriculture [7, 8].China's Official GB8173-87—Standard for Controlling Pollutants in Agricultural Fly Ash, based on the total concentration of heavy metals, but the total concentration of …
In developed countries such as Germany, USA, France and Japan, converter slag is used to produce siliceous fertilizer, phosphorus fertilizer and micronutrient …
SSS, stainless steel slag; SS, steel slag; LS, ladle slag; W, wollastonite; NP, neutralization power; RR, reactivity rate, expresses the percentage of corrective material that reacts in 3 months; ECC, effective calcium carbonate. Table 1. Chemical and physical characterization of different slags. 2 Recovery and Utilization of Metallurgical ...
This research provides information about the studies and application examples on the use of steel slag as a soil amendment and mineral fertilizer in the world.
In China, BOF slag accounts for about 70% of the annual steel slag production (Cheng and Yang, 2010).In the BOF process (Fig. 1), minor steel scrap and a large amount of molten iron from ironmaking as well as fluxes (lime/dolomite) are added into the furnace, and a 99% pure oxygen flow is applied at supersonic speed through a lance …
The use of steel slag in agriculture produces not only economic but also ecological advantages. The value of silicon (Si) application for rice (Oryzasativa) has been demonstrated ... Use of slag as an iron fertilizer The problem of iron (Fe) chlorosis can affect many crops on calcareous soils, resulting in substantial yield losses. Generally it ...
The National Natural Science Foundation of China entitled "Immobilization of heavy metals in a contaminated paddy soil using nano-slag-based silicon fertilizer and ecological assessment" (Approved No. 51509249), The 12th Five-year Key Programs entitled "Techniques for Agricultural Use of Steel and Iron Slag: Research and …
Use of stainless-steel slag for the fabrication of ceramic membrane is a promising option for the pretreatment of seawater for reverse osmosis desalination, and …
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 …
The use of metallurgical solid wastes such as steel slag, in agricultural activity, has become very important to contribute to reducing the accumulation of such wastes in the environment and to increase crop production. So, this chapter aims to emphasize the main aspects of the application of slags to soil chemical attributes as …
Dublin, April 17, 2024 (GLOBE NEWSWIRE) -- The "Thailand Fertilizer Industry Research Report 2024-2033" report has been added to ResearchAndMarkets's offering. Agriculture and plantation play ...
lizers made from steelmaking slag, sil icic acid has the most important fertilizer effect. For example, a paddy field has been reported to produce a yield of 6 tons/ha, the absorption …
Each year, about 45 million tonnes of ferrous slag (iron and steel slag) is generated in Europe. Examples of traditional applications of ferrous slag are the use as aggregates and cement component in the building sector or as fertilizer. Slag types; Aggregates; Cement / Concrete;
The hypotheses that may primarily determine how the slag amendment affects rhizosphere microbial community and ecosystem services are, (1) as a rich source of fertilizer components, the slag ...
In developed countries such as Germany, USA, France and Japan, converter slag is used to produce siliceous fertilizer, phosphorus fertilizer and micronutrient fertilizer [68]. In China, the first steel slag fertilizer program invested by Taiyuan Steel Group and Harsco Corporation of USA started building in 2011. 4.