In studies on the determination of the efficiency of using steel slag as Fe fertilizer, it has been revealed that very significant increases in yield and plant Fe intake are achieved …
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— The Si fertilizers tested in this study were supplied by the following companies: Elkem A and Elkem B from Elkem International Trading (Shanghai) Co., Ltd., China, Steel slag from Harsco-Tisco Science and Technology Company, China, Fulibang from Shanxi Fubang Fertilizer Limited Company, China, Shanjia 1 and Shanjia 2 from …
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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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— 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 ...
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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 …
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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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— 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 …
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potentially be used as a Si fertilizer source. Application of such kind of Si fertilizer has been shown to improve degraded paddy soils, as well as rice growth and disease resistance [2,29–34]. So, slag applied to paddy rice fields as Si fertilizer is beneficial not only for rice health and growth, but also from economic and environmental ...
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— All fertilizers in this study were made from steel slag. We analyzed the composition of each fertilizer by glass bead X-ray fluorescence spectroscopy (XRF) which is ordina-rily used to analyze the composition of steel slag. Each fertilizer was crushed by disk mill to make fine powder under 210 μm diameter. Contents of Ca, Si, Mg, Mn, Fe,
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— AgroSilicio, a product of Harsco Environmental, has developed a low-carbon fertilizer made of recycled steel slag. The steel industry by-product has reduced Brazil's carbon footprint by more than ...
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— The effective utilization of slag fertilizer in agriculture to neutralize soil acidity, improve crop productivity, mitigate greenhouse gas emissions, and stabilize heavy metals in contaminated soils turns it into …
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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 different rates. Results showed that moderate rates (10 and 20 g kg ‑1 ) of slag or acidified slag substantially increased corn dry matter yield and Fe uptake.
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Overview In January 2023 Philippines' Granulated Slag exports accounted up to $7.24k and imports accounted up to $832k, resulting in a negative trade balance of $825k. Between January 2021 and January 2023 the exports of Philippines' Granulated Slag have decreased by $-6.64k (-47.8%) from $13.9k to $7.24k, while imports increased by $700k …
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— It is well documented that slag-based silicon fertilizers have beneficial effects on the growth and disease resistance of rice. However, their effects vary greatly with sources of slag and are closely related to availability of silicon (Si) in these materials. To date, few researches have been done to compare the differences in plant performance …
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— Our results show that application of slag at a rate above higher or equal to 1 600 mg plant-available SiO 2 per kg soil increased soil pH, dry weight of rice straw and …
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— The effective utilization of slag fertilizer in agriculture to neutralize soil acidity, improve crop productivity, mitigate greenhouse gas emissions, and stabilize heavy metals in contaminated...
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The steel slag fertilizer was applied as the basic fertilizer in each season before rice transplanting. First, steel slag fertilizer was incorpo-rated 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
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— Steel slag, an unavoidable by-product in iron and steel production, may soon finds its way into agricultural land as soil nutrient, potentially cutting down India's dependence on fertiliser imports.
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— The effective utilization of slag fertilizer in agriculture to neutralize soil acidity, improve crop productivity, mitigate greenhouse gas emissions, and stabilize heavy metals in contaminated ...
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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 …
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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 ...
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— Steel slag, added to the soil along with biochar, can increase non-active soil carbon by 84.9% and 126.9% in early and late paddy fields, respectively.
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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 …
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— 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 productivity, mitigate...
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— 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. …
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— Steel slag fertilizer was applied at a rate of 200 and 400 g m −2, which led to an increased yield of about 8% for the rice planted compared with the rice planted without the slag fertilizer application; this increase extended another 4% when the applied amount of slag was doubled (Gao et al., 2015). Steel slag, however, contains trace ...
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In agriculture, slags can be used as fertilizers and corrective of soil acidity [1]. Slags are calcium and magnesium silicates, which show neutralizing action due to SiO3 2 base [2]. …
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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 different rates ...
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About Us. Based on accumulated experience in the steel byproduct recycling business in the domestic steel industry, we run blag furnace slag and steel slag, factory scale business and recycle business at PT.Krakatau Posco steel plant.
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— Si 0: no Si fertilizer; Si 1: slag fertilizer applied at a rate of 187 mg plant-available Si per kg soil; Si 2: slag fertilizer applied at a rate of 560 mg plant-available Si per kg soil; ... Both steel slag and iron slag are effective in this regard. In this experiment, silicon fertilizer H produced significantly higher grain weight than ...
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— In situ stabilization of heavy metals in multiple-metal contaminated paddy soil using different steel slag-based silicon fertilizer. Environ. Sci. Pollut. Res., 23 (23) (2016), pp. 1-10. Crossref View in Scopus Google Scholar. Nkoa, 2014. R. Nkoa.
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