Steel slag phosphate fertilizer was made from basic steel slag by crushing and grinding. Its main components were Ca 4 (PO 4) 2, Ca 2 SiO 4, and some metal elements such as magnesium, iron, and manganese. For acid soil, steel slag phosphate fertilizer was an excellent base fertilizer, which could improve soil fertility. The release of steel ...
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Calcium uptake by B.rapa proportionally increased when the steel slag was added at 0.2% to 1%, and the highest calcium uptake was 24,980 mg/kg at 1% steel slag ().However, the addition of a high concentration of steel slag (above 1%) did not increase the uptake of Ca. A similar tendency was observed in the case of Mg, Fe, and Mn uptake by B.rapa.
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The influence of slag fertilizer on the soil microbiome are diverse and the possible mechanisms of slag-microbes interactions can be as follows: (1) slag fertilizer supplies nutrients not only to the plant but also to soil microorganisms; (2) slag fertilizer modifies soil microbial habitats by improving soil properties (e.g., increasing soil pH ...
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Winner of the Excellence in Sustainability Steelie Award 2023. Rice is the staple food in South Korea. Every year, 3.8 million tonnes of rice are harvested, accounting for a stagg
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Although there are several attempts to demonstrate the and fertilizer capacity of steel slag, at a legal framework level there were no allowances, at least in Italy, for the recovery of refining steelmaking slag as soil fertilizer prior to the conceptualization of this work. Thus, the novel aim of this work is to prove the compliance of ...
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The feasibility of steel slag used as an iron fertilizer was studied in a pot experiment with corn. Slag alone or acidified slag was added to two Fe-deficient calcareous soils at …
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Steel slag contains macronutrients such as Ca, Mg, and P, as well as micronutrients, particularly Al, Fe, and Mn, which are typically used as fertilizers (Fig. 1 B, C) …
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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.
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Studies on the use of steel slag as a soil amendment and mineral fertilizer indicate that steel slag; - 910 can be used as an effective and economical soil amendment material in the reclamation of acid soils as an alternative to agricultural lime, Tozsin & Oztas - Journal of Agricultural Sciences (Tarim Bilimleri Dergisi), 2023, 29(4): 906-913 ...
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Because blast furnace slag includes fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as a calcium silicate fertilizer. To make rock wool used as thermal insulation, molten slag is formed into fibers, and then processed into sheets or other shapes.
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With the increase in iron/steel production, the higher volume of by-products (slag) generated necessitates its efficient recycling. Because the Linz-Donawitz (LD) slag is rich in silicon (Si) and other fertilizer components, we aim to evaluate the impact of the LD slag amendment on soil quality (by measuring soil physicochemical and biological properties), plant …
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Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag on soil pH, silicon availability, rice growth and metals-immobilization in paddy soil. Our results show that application of slag at a rate above higher or …
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Nippon KokanKk Corporation (NKK) in Japan has developed a process to produce eco-friendly slow release potassium silicate fertilizer from the slag which is generated during the desiliconisation process of hot metal at steel mill.
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Steel slag is a by-product in the process of refining iron by Blast Furnace (BF) or Electric Arc Furnace (EAF). This by-product can be used for various fields such as construction, industry …
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Mineral fertilizer combined with steel slag fertilizer in the next Winter-Spring crop produced the highest rice yield of 5.08 tons/ha, and the lowest treatment was with 4.37 tons/ha. The steel slag fertilizer application provides the Ca, Mg, Si, S contents, and other microelements that significantly improve the rice yield composition.
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Abstract Fertilizers made of steelmaking slag are important inexpensive materials for recovering degraded paddy fields. The results of our previous works showed that essential Ca and Si elements were effectively supplied by the dicalcium silicate phase (C2S) while the glassy phase of the CaO–SiO2–FeO system served as an Fe source. In this study, we have …
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A study was conducted to evaluate the optimum conditions for the utilization of steel slag as fertilizer. Initially, commercial fertilizer was partially replaced (20–60%) with steel slag applied ...
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The effect of steel slag-based fertilizer was investigated on greenhouse durum wheat cultivar under salt-stress conditions. Two doses of slag: 10 g slag/ kg soil (D1) and 20 g slag/ kg soil (D2 ...
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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 heavy metals cannot reflect their …
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Steel slag as an iron fertilizer for corn growth and soil improvement in a pot experiment, project supported by the National Natural Science Foundation of China (No. 30270800). Pedosphere. 2006; 16 (4):519-524. ISSN 1002-0160. DOI: 10.1016/S1002-0160(06)60083-0; 14.
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Recycling steel slag as fertiliser substitute in agriculture aligns well with the UN sustainable development goals which call for increased efforts from the states to mitigate climate change and increase resource efficiency by encouraging a circular economy (Hermassi et al., 2020; Mayer et al., 2022).Slag is a by-product of steel manufacture and accounts for 15–20 % …
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Download scientific diagram | Effect of steel slag fertilizer application on soil pH. Data are means of three replicates. Mean values followed by different letters (a, b, c) in the same season are ...
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Application of steel slag reduced soil acidity, increased plant–availability of silicon, promoted rice growth and inhibited Cd transport to rice grain in the soil-plant system. Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag ...
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In China, the first steel slag fertilizer program invested by Taiyuan Steel Group and Harsco Corporation of USA started building in 2011. 4. Conclusion and Prospect Compared to the developed countries, the utilization rate of steel slag is still very low in China. Therefore, large-scale utilization is a substantial resolution to the ...
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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 respect to peas plant, and the …
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This finding means that the TP and TK contents in the digestate with steel slag need be increased to improve the fertility efficiency of digestate and meet the standard of bioorganic fertilizer. Notably, steel slag is directly added to soil can enhance the crop yield, reduce the emission of N 2 O, and remove adverse effects on the ...
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Steel-slag lime has a moderate to strong effect on soil pH compared to commercial lime products, as shown in Table 4, it is especially recommended for use on heavy clays, humus, sandy soils, and peat soils. improves the physical properties of soils through increasing base cations. Calcium and magnesium cations can bind to organic matter ...
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Slag fertilizer is also used as a phosphate fertilizer, which stimulates early root formation and rapid growth of roots. It also helps in the formation of high-quality soil. ... Steel-making slag and blast furnace slag have been extensively utilized as raw materials for fertilizer production, mostly in Japan, Korea, and China. Fertilizers made ...
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HUMARIA, Curr.World Environ., Vol. 9(1), 216-219 (2014) 217 fertilizer, but, at the same time, it is too high to be used in the BF or recycled in the sinter plants. Steelmaking Slag as a Silicon Source for Plant
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slag silicate fertilizer, byproduct lime fertilizer, and slag phosphate fertilizer are specified (Tables 1–3 3)). Of the various fertilizers using steelmaking slag as a raw materi-al, the most typical …
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